Axial piston pump with variable displacement volume: DPVG Data sheet

The robust axial piston pumps of series DPVG have been developed especially for use in mobile machinery for tough environmental conditions. The swash plate design with large pivoting angle is ideal for applications that require variable delivery volume. The DPVG basic pump, thanks to a sophisticated modular system, can be combined with any of the various regulators, mounting flanges, and shaft ends. A through-drive is possible, as is the configuration of two DPVG pumps into a multi-circuit pump in tandem design.

Applies to: DPVG 085 DPVG 108 DPVG 165 DPVG 280 Features: Closed-loop circuit Series D Nominal pressure pN = 450 bar Maximum pressure pmax = 500 bar Various regulation types available Document identification: ID number: 11357580 Issue: 12/2014 Applies to: DPVG 085 to 280 Authors: Liebherr - Departments MD3 / HR1 Version: 1.0

Table of Contents Axial piston variable-displacement pump DPVG 085 to 280 1 Type code

3

2 Technical data

5

2.1

Table of values

5

2.2

Rotation direction

6

2.3

Permissible pressure range

6

2.4

Shaft seal

7

2.5

Housing flushing

8

2.6

Feed pump

9

2.7

Hydraulic fluids

3 Actuation and regulation types

10 14

3.1

Regulation types

14

3.2

Hydraulic diagrams

15

3.3

Regulation functions

28

4 Installation conditions

37

4.1

Installation variant

38

4.2

Installation position

39

5 Dimensions

40

5.1

NG 085 (independent of the rotation direction)

40

5.2

NG 108 (independent of the rotation direction)

45

5.3

NG 165 (independent of the rotation direction)

50

5.4

NG 280 (independent of the rotation direction)

55

5.5

Shaft end dimensions, NG 085 to 280

60

5.6

Through-drive dimensions

62

5.7

Multi-circuit pump in tandem design

65

Date: 12/2014 Version: 1.0 ID No.: 11357580

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1 Type code Axial piston variable-displacement pump DPVG 085 to 280

1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

9.

1

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

1. Pump type Series D / pump / variable-displacement

DPV

2. Circuit type closed

G

3. Nominal value (NG) = Displacement volume Vg max in cm NG

4. Remaining delivery volume Vg min cm

3 085

108

165

280

3 000

5. Actuation / Regulation type Electro-proportional

o

x

x

x

EL

Electro-proportional / pressure cut-off

o

x

x

x

EL - DA

Electro-proportional/ pressure cut-off**

o

o

o

o

EL - DA1

Electro-proportional with safety valve

o

o

o

o

ELS

Electro-proportional with safety valve / pressure cut-off

x

o

o

o

ELS - DA

Electro-proportional with safety valve / pressure cut-off**

o

o

o

o

ELS - DA1

Hydraulic proportional

o

o

o

o

SD

Hydraulic proportional / pressure cut-off

o

o

o

o

SD - DA

Hydraulic proportional / pressure cut-off**

o

o

o

o

SD - DA1

Electric torque control / pressure cut-off

x

o

x

x

TCE

Hydraulic torque control / pressure cut-off

x

o

o

o

TCH

6. Design 1

7. Direction of rotation with view of the drive shaft Right

x

x

x

x

R

Left

x

x

x

x

L

SAE 1

o

o

o

o

11

SAE 2

o

x

o

o

12

SAE 3

o

o

o

o

13

SAE 4

o

o

o

o

14

SAE C

x

-

-

-

23

SAE D

-

x

-

-

24

SAE E

-

-

o

x

25

160

x

-

-

-

31

180

-

x

-

-

31

200

-

-

x

-

31

224

-

-

-

x

31

DIN 5480*

x

x

x

x

1

ANSI B92.1a

x

o

o

o

2

8. Mounting flange Diesel-engine flange SAE J617

Mounting flange SAE J744

Mounting flange ISO 3019-2

9. Shaft end Splined shaft according to

Date: 12/2014 Version: 1.0 ID No.: 11357580

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1 Type code Axial piston variable-displacement pump DPVG 085 to 280

1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

1

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

10. Connections (SAE J518) High-pressure connection 6000 PSI

A

11. Accessories Without

x

x

x

x

O

12. Feed pump Without feed pump

x

x

x

x

00

With feed pump (Vg = 24 cm3), without filter and cold-start valve

x

o

-

-

24

With feed pump (Vg = 30 cm ), without filter and cold-start valve

o

o

-

-

30

With feed pump (Vg = 40 cm3), without filter and cold-start valve

-

o

o

-

40

With feed pump (Vg = 50 cm3), without filter and cold-start valve

-

-

x

o

50

With feed pump (Vg = 24 cm3), mounted filter and cold-start valve

x

-

-

-

24F

3

13. Through-drive Standard Centering diameter

Position of the fastening screw thread according to SAE

Gearing ANSI B92.1a

085

108

165

280

-

-

-

o

o

o

o

0000

SAE B Ø101.6 SAE BB SAE C Ø127 SAE CC Ø152.4

SAE D

Ø165.1

SAE E

Type K Basic (2 Hole) Type S Basic (4 Hole) Type K Basic (2 Hole) Type S Basic (4 Hole) Type K Basic (2 Hole) Type S Basic (4 Hole) Type K Basic (2 Hole) Type S Basic (4 Hole) Type K Basic (2 Hole) Type S Basic (4 Hole) Type K Basic (2 Hole) Type S Basic (4 Hole)

7/8 in 13T 16/32DP 1 in 15T 16/32DP 1 1/4 in 14T 12/24DP 1 1/2 in 17T 12/24DP 1 3/4 in 13T 8/16DP 1 3/4 in 13T 8/16DP

x

x

o

x

B11D

o

o

o

-

B12D

x

x

x

x

B21D

o

o

o

-

B22D

o

x

o

x

C11D

-

x

o

x

C12D

-

x

x

o

C21D

-

x

o

o

C22D

-

o

o

o

D11D

-

o

o

x

D12D

-

-

-

o

E11D

-

-

-

x

E12D

x

o

x

x

NS-DB-DS

14. valve High-pressure limitation valve with feed function and feed-pressure valve

15. Sensor system Without sensor

x

x

x

x

0

Angle sensor = W

o

o

o

o

W

*) **)

Preferred program With override

x o -

Available Upon request Not technically possible

Note Contact addresses for queries can be found on the reverse side of this document.

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280

Note The values provided (maximum data) are theoretical values, rounded, without efficiencies and tolerances.

2.1 Table of values Nominal values

085

108

165

280

Displacement volumes

Vg max

cm3

85.2

107.7

167.8

283.4

Max. speed for Vg max

nmax

rpm

3300

3000

2700

2500

Volumetric flow rate for nmax and Vg max

qvmax

l/min

281

323

453

709

Drive power for qvmax and Δp = 450 bar

pmax

kW

211

242

340

531

Torque for Vg max and Δp = 450 bar

Mmax

Nm

610

771

1202

2030

Torsional stiffness

Shaft DIN 5480

Nm/rad

103003

181227

229871

431105

Shaft ANSI B92.1a-1976 1 1/4 IN 14T 12/24 DP

Nm/rad

78269

-

-

-

JTW

kgm2

0.0101

0.017

0.03

0.0693

m

kg

54

69

96

134

Max. radial force

Fq max

N

Max. axial force

Fa± max

N

-

-

-

-

Max. input torque for shaft end DIN 5480

ME perm

Nm

-

-

1950

-

Max. input torque for shaft end ANSI B92.1a

ME perm

Nm

-

-

-

-

Max. through-drive torque

MD perm

Nm

-

-

1950

-

Mass moment of inertia of the drive Mass (approx.) Permissible radial and axial load of the drive shaft

The permissible forces result from the load collective. Please consult us if a belt drive is planned.

Permissible input and through-drive torques

**) ME perm for shaft end ANSI B92.1a has to be taken into account

T1*) Mmax, for simultaneous pmax and Vg max

Date: 12/2014 Version: 1.0 ID No.: 11357580

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.2 Rotation direction 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

1

7.

8.

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

The direction of rotation is provided with a view of the drive shaft, as depicted in the illustration. Right = clockwise Left = counterclockwise

2.3 Permissible pressure range 2.3.1 Operating pressure

Connection “A / B” Pressure at working port “A” or “B”:

Nominal pressure pN = 450 bar (not fatigue critical) / Maximum pressure pmax = 500 bar (short term)

Note Definition of short term, unless stated otherwise: t < 1s, ttotal = 3ooBh.

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.3.2 Minimum operating pressure = feed pressure In order to guarantee sufficient lubrication in the driving gear in all swivel angles during operation, there must be a pressure applied in the operating circuit, for example measured at M1 or M2, at Vg max and Vg min, of at least pHDmin = 20 bar. The values depend on external circumstances, such as the type of hydraulic fluid used or the temperature, and they must be individually calculated for each use. Values upon request.

2.3.3 Housing pressure, leakage-oil pressure

The housing or leakage-oil pressure pL must not exceed the maximum values. For boundary values, See chapter 2.4.3. The number of leakage-oil connections T can vary depending on the application.

2.4 Shaft seal 2.4.1 General The radial shaft seals (RWDR) from Liebherr are special sealing elements that allow a specific housing pressure. In order to ensure that the tribological system functions optimally, the operating conditions must be observed. See chapter 2.4.3 Depending on the peripheral speed, oil temperature, lubricant, and pressure buildup in the housing, the sealingedge temperature can be approx. 20° to 40°C above the leakage-oil temperature of a hydraulic axial piston unit.

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.4.2 Temperature range The FKM radial shaft seal is permissible for housing temperatures of -25°C to +115°C. Please consult us in case of use below -25°C. 2.4.3 Permissible pressure load for hydraulic pumps The service life of the RWDR is influenced by the speed “n” of the axial piston unit and the leakage-oil pressure “pL.” The constant leakage-oil pressure “pL” should not exceed 3 bar abs. for operating temperature. The max. permissible leakage-oil pressure is 6 bar absolute for reduced speed (see diagram).

Permissible pressure p abs. max. in bar

Short-term pressure peaks of max. 10 bar abs. are allowed (t < 0.1 s) in the short term. The more pressure peaks that occur, the shorter the service life of the shaft seal. The pressure in the axial piston unit must always be higher than the outer pressure on the shaft seal. Shaft diameter (mm)

Nominal value

40

085

45

108

50

165

60

280

Speed n in rpm

2.5 Housing flushing Under various operating conditions, such as a very low flow over a longer period of time, a boundary value increase in temperature could occur in the housing. See chapter 2.7 In this case, the housing must be flushed in such a manner that the “hot” hydraulic fluid is conveyed to an external cooler, cooled there, and fed back into the hydraulic system. The flushing quantity qV in l/min has to be individually set for each nominal value in connection with the application and is the responsibility of the manufacturer of the device or system.

Date: 12/2014 Version: 1.0 ID No.: 11357580

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.6 Feed pump 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

1

8.

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

Note A feed pump can only be realized in combination with through-drive = B11D or 0000. A jointly used feed pump on hydraulic pump 2 is recommended for multi-circuit pumps in tandem design, see chapter 5.7.

1- Feed pump

Not part of the scope of delivery

2.6.1 Hydraulic diagram with feed pump

1- Feed pump 2- Feed pump, incl. mounted filter and cold-start valve

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.7 Hydraulic fluids 2.7.1 General The selection of the suitable hydraulic fluid is substantially influenced by the expected operating temperature depending on the ambient temperature that is equivalent to the tank temperature. Use the comparative oil values for the selection of the suitable hydraulic fluid. See chapter 2.7.5 2.7.2 Operating limits Depending on the operating temperature, the appropriate oil must be selected taking into account the viscosity characteristics according to the following conditions: -

Cold start: max. approx. 1600 mm2/s *) Normal operation: at or above approx. 500 mm2/s *) Optimal range of application: 16-36 mm2/s *) At max. leakage-oil temperature, the viscosity must not be below 8 mm2/s (short term, meaning < 3 min., 7mm2/s). The shear stability (KRL) has to be observed for multigrade oils.

*) In reference to the tank temperature In addition to the viscosity characteristics, the Liebherr GSP specification ID No. 10465804 must be observed. 2.7.3 Filling quantity The required filling quantity can be customized; values upon request. Note The hydraulic unit must be filled with oil and bled prior to initialization. This must be inspected during operation and after longer standstills, and it must be repeated as necessary! 2.7.4 Filtering -

To maintain the specified purity class “21/17/14 according to ISO 4406” under all circumstances, it is necessary to filter the hydraulic fluid. The hydraulic fluid is filtered by means of the device-specific use of oil filters in the hydraulic system. Cleaning and maintenance intervals of the oil filter, with respect to the entire oil circuit, depend on the device usage, and they are to be found in the device-specific operating manual.

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.7.5 Comparative oil values Outdoor operating temperature °C

Density at 15°C kg/m3

Viscosity class ISO VG

Liebherr Hydraulic Basic 68

-10 to +45

882

68

Kinematic viscosity at 40 / 100°C mm²/s 68 / 8.7

Liebherr Hydraulic Basic 100

+/- 0 to +55

882

100

100 / 11.5

-18

Liebherr Hydraulic HVI

-20 to +40

877

46 (32-68)

46 / 8.3

-39

Liebherr Hydraulic Plus

-25*) to +45 +**)

838

46 (32-68)

46 / 9.5

-45

Liebherr Hydraulic Plus Arctic

-40***) to +30 +1)

828

15-46

7/25/2004

< -54

Liebherr Hydraulic Gear ATF

(-40 to +50)2) +3)

Oil grade

Liebherr Hydraulic 37 Liebherr Hydraulic FFE 30

Pour point °C -24

877

-

39 / 7.2

-45

(-25 to

+50)4)

870

32-46

37 / 7.2

-39

(-40 to

+50)4)

844

15-46

7/28/2005

< -51

*) Preheating is absolutely necessary at temperatures below -25°C. **) Applicable to Liebherr Mining Excavators: -40°C to +45°C (at temperatures below -25°C, the appropriate Liebherr Arctic Kit must be used). ***) Preheating is absolutely necessary at temperatures below -40°C. 1

) Applicable to Liebherr Mining Excavators: -50°C to +30°C (at temperatures below -30°C, the appropriate Liebherr Arctic Kit must be used). 2) For use in automatic transmissions. 3 ) For use in cranes. 4) For use in Liebherr cranes.

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280 2.7.6 Viscosity diagrams

Kinematic viscosity in mm3/s

Kinematic viscosity in mm3/s

Designation

Temperature in ºC

Date: 12/2014 Version: 1.0 ID No.: 11357580

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2 Technical data Axial piston variable-displacement pump DPVG 085 to 280

Kinematic viscosity in mm3/s

Kinematic viscosity in mm3/s

Designation

Temperature in ºC

Date: 12/2014 Version: 1.0 ID No.: 11357580

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

1

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

Note Only one nominal value is illustrated per regulation type or function, primarily based on the nominal value 280. Special applications and custom-made productions are not listed in this section. Always use the information from the delivered installation drawing or consult with Liebherr.

3.1 Regulation types Applicable to all regulation types: DANGER The spring-guided return in the regulating valve is not a safety device! Impurities in the hydraulic system such as wear or residual contamination from device or system components can result in blockages in undefined places of the various regulator components. Under certain circumstances, machine operator requirements can no longer be realized. The realization of a safety device, such as an Emergency-Off, is the responsibility of the manufacturer of the device or system. The following actuation and regulation types designed according to the modular principle can be ordered for the DPVG series: 3.1.1 pressure regulator -

SD regulation, see chapter 3.2.1 SD- DA regulation, see chapter 3.2.2 SD- DA1 regulation, see chapter 3.2.3 TCH regulation, see chapter 3.2.4 / see chapter 3.2.5

3.1.2 Electronic regulator -

EL regulation, see chapter 3.2.6 EL- DA regulation, see chapter 3.2.7 EL- DA1 regulation, see chapter 3.2.8 ELS regulation, see chapter 3.2.9 ELS- DA regulation, see chapter 3.2.10 ELS- DA1 regulation, see chapter 3.2.11 TCE regulation, see chapter 3.2.12 / see chapter 3.2.13

Additional types of regulation are available upon request.

Date: 12/2014 Version: 1.0 ID No.: 11357580

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2 Hydraulic diagrams 3.2.1 SD regulation

Abbreviation Designation X1, X2 A, B

Abbreviation Designation

Control-pressure connection ISO 9974-1

T2

Oil drainage ISO 9974-1

Working ports SAE J 518

T3

Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

T1

Leakage-oil connection ISO 9974-1

Note X1 switched, direction of rotation: R = Oil leak in connection A, direction of rotation: L = Oil leak in connection B X2 switched, direction of rotation: R = Oil leak in connection B, direction of rotation: L = Oil leak in connection A

Date: 12/2014 Version: 1.0 ID No.: 11357580

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.2 SD - DA regulation

Abbreviation Designation X1, X2 A, B

Abbreviation Designation

Control-pressure connection ISO 9974-1

T2

Oil drainage ISO 9974-1

Working ports SAE J 518

T3

Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

T1

Leakage-oil connection ISO 9974-1

Note X1 switched, direction of rotation: R = Oil leak in connection A, direction of rotation: L = Oil leak in connection B X2 switched, direction of rotation: R = Oil leak in connection B, direction of rotation: L = Oil leak in connection A

Date: 12/2014 Version: 1.0 ID No.: 11357580

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.3 SD - DA1 regulation

Abbreviation Designation X1, X2 Y A, B

Abbreviation Designation

Control-pressure connection ISO 9974-1

T1

Leakage-oil connection ISO 9974-1

DA1 override signal

T2

Oil drainage ISO 9974-1

Working ports SAE J 518

T3

Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

Note X1 switched, direction of rotation: R = Oil leak in connection A, direction of rotation: L = Oil leak in connection B X2 switched, direction of rotation: R = Oil leak in connection B, direction of rotation: L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.4 TCH regulation, direction of rotation left

Not part of the scope of delivery

Abbreviation Designation X1, X2 A, B

Control-pressure connections ISO 9974-1 Working ports SAE J 518

Abbreviation Designation T1, T2 T3

Leakage-oil connections ISO 9974-1 Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Y

DA1 override signal

M4, M5

Actuating-pressure measuring connections ISO 9974-1

S

Feed-pump suction connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

Note X1 switched, direction of rotation: L = Oil leak in connection B X2 switched, direction of rotation: L = Oil leak in connection A

Date: 12/2014 Version: 1.0 ID No.: 11357580

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.5 TCH regulation, direction of rotation right

Not part of the scope of delivery

Abbreviation Designation X1, X2 A, B

Control-pressure connections ISO 9974-1

Abbreviation Designation T3

Return feed pressure ISO 9974-1

Working ports SAE J 518

M1, M2

High-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

Y

DA1 override signal

M6, M7

Control-pressure measuring connections ISO 9974-1

T1, T2

Leakage-oil connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

Note X1 switched, direction of rotation: R = Oil leak in connection A X2 switched, direction of rotation: R = Oil leak in connection B

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.6 EL regulation

Abbreviation Designation E1, E2 A, B

Abbreviation Designation

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA

T2

Oil drainage ISO 9974-1

Working ports SAE J 518

T3

Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

T1

Leakage-oil connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B Solenoid E2 switched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.7 EL - DA regulation

Abbreviation Designation E1, E2 A, B

Abbreviation Designation

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA

T2

Tank connection ISO 9974-1

Working ports SAE J 518

T3

Return feed pressure ISO 9974-1

R1

Vent connection ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

T1

Flushing connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B Solenoid E2 switched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.8 EL - DA1 regulation

Abbreviation Designation E1, E2

E5

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA Angle-of-rotation sensor according to ISP ID No. 11118356 3-pin connector, DT04-3P Deutsch company

Abbreviation Designation T3

Return feed pressure ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Working ports SAE J 518

M4, M5

Actuating-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

A, B

T1, T2

Y

DA1 override signal ISO 9974-1

Tank connection ISO 9974-1

Note Solenoid E1 swSolenoiditched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A Solenoid E2 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.9 ELS regulation

Abbreviation Designation E1, E2

E3, E4

E5

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA Stop valve, plug connection: Deutsch connector DT04-2P, IG=0.58 A-100% ED EN=24V, R=25 Ohm Angle-of-rotation sensor according to ISP ID No. 11118356 3-pin connector, DT04-3P Deutsch company

Abbreviation Designation T1, T2

T3

Tank connection ISO 9974-1

Return feed pressure ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Working ports SAE J 518

M4, M5

Actuating-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

A, B

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B Solenoid E2 switched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.10 ELS - DA regulation

Abbreviation Designation E1, E2

E3, E4

E5

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA Stop valve, plug connection: Deutsch connector DT04-2P, IG=0.58 A-100% ED EN=24V, R=25 Ohm Angle-of-rotation sensor according to ISP ID No. 11118356 3-pin connector, DT04-3P Deutsch company

Abbreviation Designation T1, T2

T3

Tank connection ISO 9974-1

Return feed pressure ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Working ports SAE J 518

M4, M5

Actuating-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

A, B

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B Solenoid E2 switched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.11 ELS - DA1 regulation

Abbreviation Designation E1, E2

E3, E4

Pressure-relief valve, AMP Junior Timer plug, 2 pin, PWM= 100Hz, E= 24V, Imax.= 750mA Stop valve, plug connection: Deutsch connector DT04-2P, IG=0.585 A-100% ED EN=24V, R=25 Ohm

Abbreviation Designation T3

Return feed pressure ISO 9974-1

M1, M2

High-pressure measuring connections ISO 9974-1

Working ports SAE J 518

M4, M5

Actuating-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

A, B

T1, T2

Y

DA1 override signal ISO 9974-1

Tank connection ISO 9974-1

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A, L = Oil leak in connection B Solenoid E2 switched, direction of rotation: R = Oil leak in connection B, L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.12 TCE regulation, direction of rotation left

Abbreviation Designation E1, E2

E3, E4 A, B

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA Stop valve, plug connection: Deutsch connector DT04-2P, IG=0.58 A-100% ED EN=24V, R=25 Ohm

Abbreviation Designation T1, T2

T3

Tank connection ISO 9974-1

Oil-return feed-pressure valve ISO 9974-1

Working ports SAE J 518

M1, M2

High-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Note Solenoid E1 switched, direction of rotation: L = Oil leak in connection B Solenoid E2 switched, direction of rotation: L = Oil leak in connection A

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.2.13 TCE regulation, direction of rotation right

Abbreviation Designation E1, E2

E3, E4 A, B

Pressure-relief valve, plug connection AMP Junior Timer, 2 pin, PWM= 100Hz, En= 24V, Imax.= 750mA Stop valve, plug connection: Deutsch connector DT04-2P, IG=0.58 A-100% ED EN=24V, R=25 Ohm

Abbreviation Designation T1, T2

T3

Tank connection ISO 9974-1

Oil-return feed-pressure valve ISO 9974-1

Working ports SAE J 518

M1, M2

High-pressure measuring connections ISO 9974-1

R1

Vent connection ISO 9974-1

M4, M5

Actuating-pressure measuring connections ISO 9974-1

Fa

Feed-pressure connection ISO 9974-1

M6, M7

Control-pressure measuring connections ISO 9974-1

Note Solenoid E1 switched, direction of rotation: R = Oil leak in connection A Solenoid E2 switched, direction of rotation: R = Oil leak in connection B

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.3 Regulation functions -

SD function / Control-pressure proportional hydraulic displacement, see chapter 3.3.1 DA function / pressure cut-off valve, see chapter 3.3.2 DA1 function / pressure cut-off valve with override, see chapter 3.3.3 TCH function / hydraulically controlled torque regulation with pressure cut-off valve, see chapter 3.3.4 EL function / electro-proportional displacement, see chapter 3.3.5 ELS function / electro-proportional displacement with safety valve, see chapter 3.3.6 TCE function / electrically controlled torque regulation with pressure cut-off valve, see chapter 3.3.7

3.3.1 SD function The SD regulation is suitable for applications that require a proportionally regulated volumetric flow rate. Characteristic curve Characteristic

When the drive is displaced from Vg min toward Vg max, the pump swivels to a greater displacement volume Vg with increasing SD control pressure at X1 / X2. If X1 / X2 is switched, then the control piston is displaced into the regulator adjusting unit. The deflection leads directly to the swivel yoke / swivel cradle by mechanical transfer through an adjusting lever, to swivel out the swivel yoke / the swivel cradle, countering the spring force of the return spring toward Vg max. If there is a failing, missing, or defective actuation signal to X1 / X2, the pump swivels toward Vg min.

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.3.2 DA function

The DA pressure regulation provides the minimization or limitation of the volumetric flow rate of the axial piston unit when it reaches a fixed setting for the high-pressure value pHD. By swiveling toward Vg min, the hydraulic system is protected from damage and overload. It is swiveled toward Vg min until the volumetric flow rate of the axial piston unit, at precisely this pressure level, meets the needs of the consumer. The function of the pressure regulator ensures that the pressure in the system remains constant, even with a changing volumetric flow rate. This equalizes all internal and external losses of leakage oil. Setting range XE approx. 30- 400 bar. Options - Additional internal structural design measures for vibration damping should be implemented after consultation. - Pressure cut-off valve with override function: see chapter 3.3.3 3.3.3 DA1 function In the closed-loop circuit, the override function DA1 corresponds to a two-stage pressure cut-off valve with 2 pressure stages. -

Pressure stage 1, e.g.: 250 bar or Pressure stage 2, e.g.: 400 bar

The DA1 function in the DA axis in the pressure regulator has the purpose of overriding the fixed setting of the DA cut-off pressure of pressure stage 1 (e.g., 250 bar) by means of an externally fed control pressure pY-pT at the connection Y, and consequently increasing the high pressure to the fixed setting of the DA cut-off pressure of pressure stage 2 (e.g., to 400 bar). This makes it suitable for systems or devices that either require a controllable ability to increase torque or are subject to multiple use. Examples are the working hydraulics in mobile excavators and their travel hydraulics.

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.3.4 TCH function With the TCH function, the displacement volume Vgof the hydraulic pump can be set in several stages that are dependent on the control pressure at X1 / X2 (pst-pT) and proportionate to the high pressure pHD. This realizes constant rotating speeds of the slewing ring, with the simultaneous ability to limit the maximum power input.

Block curve

With increasing control pressure at X1 / X2, the hydraulic pump swivels toward Vg max, and with an increasing pressure differential ΔPA-B it swivels toward Vg min. (See diagram) The respective high pressure is fed back to the pilot control valve and counteracts the control signal. When the drive is at a standstill, it is possible to build up the pressure differential ΔPA-B in the system proportionate to the control signal at X1 / X2, e.g., for holding the superstructure when working on a slope. (See block curve) The TCH function is combined with the DA function, see chapter 3.3.2 and it is particularly well suited for slewinggear controls, for instance. 3.3.5 EL function Characteristic

With the EL function, the displacement volume Vg of the axial piston unit is displaced proportionally and infinitely variably via a solenoid. The EL function is subordinate to the DA function, meaning that the EL function dependent on the control current is only implemented below the set value for the pressure cut-off.

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 When the drive is displaced from Vg min toward Vg max, the pump swivels to a greater displacement volume Vg with increasing control current= I at the proportional solenoid DRE. If E1 / E2 is switched, then the control piston is displaced into the regulator adjusting unit. The deflection leads directly to the swivel yoke / swivel cradle by mechanical transfer through an adjusting lever, to swivel out the swivel yoke / the swivel cradle, countering the spring force of the return spring toward Vg max. The hydraulic fluid required for this is obtained from the high-pressure pHD. For low high pressure pHD < 30 bar, the connection Fa must be supplied with a feed pressure of approx. 30 bar in order to ensure the displacement. If there is a missing or defective actuation signal, the axial piston unit swivels to Vg min. Options - Safety function. see chapter 3.3.6 3.3.6 ELS function

Set point

Proportional solenoid E1/E2

Switch solenoid E3/E4

If the current consumption at the proportional solenoid DRE exceeds a defined value (e.g., 210 mA), then a switch solenoid E3 / E4 is automatically also supplied with voltage and closes a channel against tank pressure pT in the respective stop valve. This operation is repeated with each actuation of the proportional solenoid DRE. In the event of damage to the proportional solenoid (e.g., becoming stuck due to chucking abrasion), the machine operator, by switching off the control current I at E1 / E2, de-energizes the switch solenoid E3 / E4 and opens the channel to the tank pressure pT in the respective stop valve, and the control pressure is decreased. The axial piston unit swivels toward Vg min.

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 Pressure-relief valve (DRE) variant 1

Plug connection

Abbreviation T

Designation Tank

PP

Input DRE

PS

Output DRE

General information - Nominal voltage: 24 V - Current Max.: 750 mA - Supply pressure Max.: 50 bar - Solenoid characteristic: flat around the regulating position

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 Pressure-relief valve (DRE) variant 2

Plug connection

Abbreviation T

Designation Tank

PP

Input DRE

PS

Output DRE

General information - Nominal voltage: 24 V - Current Max.: 750 mA - Supply pressure Max.: 350 bar - Solenoid characteristic: increasing around the regulating position

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 Switching solenoid (safety function)

Plug connection

General information - Nominal voltage: 24 V - Resistance = 25 ohm - Limiting current IMax.: 585 mA

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 3.3.7 TCE function With the TCE function, the displacement volume Vg of the hydraulic pump can be set in several stages that are dependent on the control current = I [mA] and proportionate to the high pressure pHD. This realizes constant rotating speeds of the slewing ring, with the simultaneous ability to limit the maximum power input. Current characteristics Block curve

With increasing control current = I [mA] at the DRE proportional solenoid E1 / E2, the hydraulic pump swivels toward Vg max, and with an increasing pressure differential ΔPA-B it swivels toward Vg min. (See diagram) The respective high pressure is fed back to the pilot control valve and counteracts the control signal. When the drive is at a standstill, it is possible to build up the pressure differential ΔPA-B in the system proportionate to the control current = I [mA] at the DRE proportional solenoid E1 / E2, e.g., for holding the superstructure when working on a slope. (See block curve) The TCE function is combined with the DA function, see chapter 3.3.2 and it is particularly well suited for slewinggear controls, for instance.

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3 Actuation and regulation types Axial piston variable-displacement pump DPVG 085 to 280 Angle-of-rotation sensor

Plug connection

General information - Supply voltage: 5 VDC - Measurement range.: -27° to + 27° - Output signal: 0.5VDC to 4.5 VDC - Operating temperature: -40°C to +125°C Note The angle sensor cannot be retrofitted and must be taken into account during the new configuration of the DPVG.

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4 Installation conditions Axial piston variable-displacement pump DPVG 085 to 280 Depending on the mounting position and installation variant, the gravitational curb weight and housing pressure have to be taken into account along with the effects of displacement and regulation, such that the settings of the device or system may have to be adjusted. The suction and leakage-fluid lines, in all mounting positions, must flow into the tank below the minimum fluid level in order to prevent foam formation. The oil tank must be designed in such a manner that the hydraulic fluid cools sufficiently during circulation and any impurities are deposited on the floor of the tank. Note Liebherr differentiates between two installation variants, A and B, as well as six mounting positions, 1-6, for the axial piston units.

Note Recommended installation variant(s): Below-tank installation A Installation variant(s) to be avoided: None

Note Recommended mounting position(s): Drive shaft horizontal Mounting position(s) to be avoided: None

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4 Installation conditions Axial piston variable-displacement pump DPVG 085 to 280 4.1 Installation variants Note The installation variant is only meaningful for application with an integrated feed pump, and it is described in this section. If there is no integrated feed pump in the mounting plate, then the installation variant is irrelevant. Below-tank installation “A”: Axial piston unit is installed below the minimum fluid level of the tank. Above-tank installation “B”: Axial piston unit is installed above the minimum fluid level of the tank.

Abbreviation Designation

Remark

4

Baffle plate

for pacifying the hydraulic fluid in the tank

B

Distance

between suction connection and leakage-oil connection in the tank (the larger the better)

H L

Maximum suction height (only relevant for above-tank 750 mm installation and with feed pump) Leakage-oil connections -

M

Minimum distance from the end of the line to the floor of the tank

115 mm

S

Suction-line connection

-

T

Tank

-

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4 Installation conditions Axial piston variable-displacement pump DPVG 085 to 280 4.2 mounting positions In each of the two installation variants there are six possible mounting positions. As a rule for the DPVG mounting position, it has to be ensured that the crankshaft of the drive motor / the drive of the pump distributor gear is in line with the drive shaft of the DPVG.

ATTENTION An air buffer in the bearing area, particularly for mounting positions 1 and 3, can result in damage to the hydraulic unit. Ensure that the pump housing has been completely filled with pressure fluid and bled, both at initialization and during operations. Regularly inspect the pressure-fluid level in the housing space; reinitialize if necessary.

Note To prevent emptying of the axial piston unit in mounting position 3 and installation variant B, a check valve with an opening pressure of max. 0.5 bar can be installed in the leakage-fluid line after consultation with Liebherr.

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5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.1 NG 085 (independent of the rotation direction) Point of the center of gravity

pt h De 17

VIEW Y

VIEW X VIEW Z Pressure cutoff Pressure and feed valves Charge-pressure valve

A/B

Working line SAE J518-1ª, 6000 psi

R1

Bleeding M12x1.5

Fa

Leakage oil M26x1.5 Feed-pressure connection M22x1.5

M1 / M2

High-pressure measuring connection M12x1.5

M4 / M5

Actuating-pressure measuring connection M12x1.5

Port connections

T1 - T2

E1 / E2

Pressure-relief valve, plug: AMP Junior Timer 2 pin PWM = 100Hz, E = 24 V, Imax = 750mA

M6 / M7

Control-pressure measuring connection M12x1.5

EL - DA Date: 12/2014 Version: 1.0 ID No.: 11357580

40

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5 E1 / E2 M6 / M7 Y

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5 E1 / E2 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280

5.1.1 Possible combinations with additional types of regulation EL

EL-DA1

Pressure cutoff DA1

ELS

ELS-DA

Pressure cutoff DA

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X1 / X2 M6 / M7 Y

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 DA-Übersteuerung ISO 9974-1 M12x1.5

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5

Y

M6 / M7

E1 / E2 E3 / E4

DA1 override ISO 9974-1 M12x1.5

Control-pressure measuring connection ISO 9974-1 M12x1.5

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 ELS-DA1

Pressure cutoff DA1

SD

SD-DA

Date: 12/2014 Version: 1.0 ID No.: 11357580 Pressure cutoff DA

SD-DA1

Pressure cutoff DA1

42

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M12x1.5 E1/ E2 E3/ E4 M6/ M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 TCE

TCH

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5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.1.2 NG 085 Mounting flange 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

9.

1

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

SAE C, (SAE J744) Type code 23

ISO 3019-2 Type code 31

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5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.2 NG 108 (independent of the rotation direction) Point of the center of gravity

De pth

17

VIEW Y

VIEW X VIEW Z

Pressure cutoff Pressure and feed valves

A/B R1 T1 - T2 Fa M1 / M2

Working line SAE J518-1'', 6000 psi Bleeding M14x1.5 Leakage oil M33x2 Feed-pressure connection M26x1.5 High-pressure measuring connection M12x1.5

M4 / M5

Actuating-pressure measuring connection M14x1.5

T3

Return feed-pressure valve M26x1.5

Port connections

Charge-pressure valve

E1 / E2

Pressure-relief valve, plug: AMP Junior Timer 2 pin PWM = 100Hz, E = 24 V, Imax = 750mA

M6/M7

Control-pressure measuring connection M14x1.5

EL - DA Date: 12/2014 Version: 1.0 ID No.: 11357580

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Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25ΩΩ

Control-pressure measuring connection ISO 9974-1 M12x1.5

E1/ E2 E3/ E4

M6/ M7

E1/ E2 E3/ E4 M6/ M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1/ E2 M6/ M7 Y

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5 E1 / E2 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280

5.2.1 Possible combinations with additional types of regulation EL

EL-DA1

Pressure cutoff DA1

ELS

ELS-DA

Pressure cutoff DA

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X1 / X2 M6 / M7 Y

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 DA1 override ISO 9974-1 M12x1.5

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 M6 / M7 Y

E1 / E2 E3 / E4 Control-pressure measuring connection ISO 9974-1 M12x1.5 DA1 override ISO 9974-1 M12x1.5

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 ELS-DA1

Date: 12/2014 Version: 1.0 ID No.: 11357580 Pressure cutoff DA1

SD

SD-DA

Pressure cutoff DA

SD-DA1

Pressure cutoff DA1

47

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M12x1.5

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 TCE

TCH

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5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.2.2 NG 108 Mounting flange 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

9.

1

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

SAE D, (SAE J744) Type code 24

ISO 3019-2 Type code 31

Diesel-engine flange SAE 2 (SAE J617) Type code 12

10.5*) Displacement of the mounting flange

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5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.3 NG 165 (independent of the rotation direction) Point of the center of gravity

18 pth De

VIEW Y

VIEW X

VIEW Z

Pressure cutoff Pressure and feed valves

A/B R1 T1 - T2 Fa M1 / M2

Working line SAE J158-1 1/4'', 6000 psi Bleeding M14x1.5 Leakage oil M42x2 Feed-pressure connection M33x2 High-pressure measuring connection M12x1.5

M4 / M5

Actuating-pressure measuring connection M14x1.5

T3

Return feed-pressure valve M22x1.5

Port connections

Charge-pressure valve

E1 / E2

Pressure-relief valve, plug: AMP Junior Timer 2 pin PWM = 100Hz, E = 24 V, Imax = 750mA

M6/M7

Control-pressure measuring connection M14x1.5

EL - DA Date: 12/2014 Version: 1.0 ID No.: 11357580

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E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5 E1/ E2 M6/ M7 Y

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5

E1 / E2 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280

5.3.1 Possible combinations with additional types of regulation EL

EL-DA1

Pressure cutoff DA1

ELS

ELS-DA

Pressure cutoff DA

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51

X1 / X2 M6/ M7 Y

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5

X1 / X2 M6 / M7

Y

E1 / E2 E3 / E4 M6 / M7 DA1 override ISO 9974-1 M12x1.5

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 ELS-DA1

Pressure cutoff DA1

SD

SD-DA

Date: 12/2014 Version: 1.0 ID No.: 11357580 Pressure cutoff DA

SD-DA1

Pressure cutoff DA1

52

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M12x1.5 Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1 / E2 E3 / E4 M6 / M7

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 TCE

TCH

Note X3 is only to be connected for LR1 X4 is only to be connected for LS1 X5 is only to be connected for DA1

Date: 12/2014 Version: 1.0 ID No.: 11357580

53

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.3.2 NG 165 Mounting flange 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

1

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

ISO 3019-2 Type code 31

Date: 12/2014 Version: 1.0 ID No.: 11357580

54

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.4 NG 280 (independent of the rotation direction) Point of the center of gravity

th Dep

24

VIEW Y

VIEW X VIEW Z Pressure cutoff Pressure and feed valves

A/B R1 T1 - T2 Fa M1 / M2

Working line SAE J518-1 1/2'', 6000 psi Bleeding M22x1.5 Leakage oil M42x2 Feed-pressure connection M26x1.5 High-pressure measuring connection M12x1.5

M4 / M5

Actuating-pressure measuring connection M14x1.5

T3

Return feed-pressure valve M26x1.5

Port connections

Charge-pressure valve

E1 / E2

Pressure-relief valve, plug: AMP Junior Timer 2 pin PWM = 100Hz, E = 24 V, Imax = 750mA

M6/M7

Control-pressure measuring connection M14x1.5

EL - DA Date: 12/2014 Version: 1.0 ID No.: 11357580

55

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

E1/ E2 M6/ M7 Y

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5 E1 / E2 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Control-pressure measuring connection ISO 9974-1 M14x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280

5.4.1 Possible combinations with additional types of regulation EL

EL-DA1

Pressure cutoff DA1

ELS

ELS-DA

Pressure cutoff DA

Date: 12/2014 Version: 1.0 ID No.: 11357580

56

X1 / X2 M6/ M7 Y

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 DA override ISO 9974-1 M12x1.5

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M14x1.5 M6 / M7 Y

E1 / E2 E3 / E4 Control-pressure measuring connection ISO 9974-1 M12x1.5 DA1 override ISO 9974-1 M12x1.5

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 ELS-DA1

Date: 12/2014 Version: 1.0 ID No.: 11357580 Pressure cutoff DA1

Pressure cutoff DA

SD

SD-DA

Pressure cutoff DA

SD-DA1

Pressure cutoff DA1

57

X1 / X2 M6 / M7

Control-pressure connection ISO 9974-1 M12x1.5 Control-pressure measuring connection ISO 9974-1 M12x1.5 E1 / E2 E3 / E4 M6 / M7

Plug: AMP Junior - Timer 2 pin En = 24 V Imax = 750mA PWM 100Hz Stop valve Deutsch connector DT04-2P IG=0.585 A-100% ED E=24V R=25Ω Control-pressure measuring connection ISO 9974-1 M12x1.5

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 TCE

TCH

Date: 12/2014 Version: 1.0 ID No.: 11357580

58

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.4.2 NG 280 Mounting flange 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

9.

1

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

SAE E, (SAE J744) Type code 25

ISO 3019-2 Type code 31

Date: 12/2014 Version: 1.0 ID No.: 11357580

59

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.5 Shaft end dimensions, NG 085 to 280 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

1

9.

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

5.5.1 NG 085 Shaft end W35x2x16x9g Splined shaft DIN 5480

Type code 1 Splined shaft ANSI B92.1a 1 1/4 in 14 T 12/240P

Type code 2

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60

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.5.2 NG 108 Shaft end W45x2x21x9g Splined shaft DIN 5480

Type code 1 5.5.3 NG 165 Shaft end W45x2x21x9g Splined shaft DIN 5480

Type code 1 5.5.4 NG 280 Shaft end W55x2x26x9g Splined shaft DIN 5480

Type code 1

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61

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.6 Through-drive dimensions 1.

2.

DPV

G

3.

/

4.

/

000

5.

6.

7.

8.

9.

1

10.

11.

A

O

12.

13.

14.

15.

NS-DB-DS

5.6.1 SAE B

O-ring (included in the scope of delivery)

O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

12 12 12 12

10.5 10.5 14.1 10.5

L to mounting flange

Gearing: ANSI B92.1a-1976 7/8“ 13T 16/32 DP W3 W4 L G1 (2 Hole) 48.5 48.5 35.1 48.5

60.5 60.5 45.1 60.5

293.5 294 348 360

G2 (4 Hole)

M12x1.75: 22Deep M12x1.75: 26Deep M12x1.75: 26Deep M12x1.75: 18Deep

-

Enter code in the type code: B11D : 2 Hole / B12D : 4 Hole 5.6.2 SAE BB

O-ring (included in the scope of delivery)

O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

12 12 12 12

10.5 10.5 10.5 10.5

L to mounting flange

Gearing: ANSI B92.1a-1976 1“ 15T 16/32 DP W3 W4 L G1 (2 Hole) 48.5 48.5 49 48.5

60.5 60.5 60.5 60.5

293.5 294 348 360

M12x1.75: 22Deep M12x1.75: 26Deep M12x1.75: 26Deep M12x1.75: 18Deep

G2 (4 Hole) -

Enter code in the type code: B21D : 2 Hole / B22D : 4 Hole

Date: 12/2014 Version: 1.0 ID No.: 11357580

62

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.6.3 SAE C

Only with NG 280 O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

14 14 14 14

17 23 13 10.5

Gearing: ANSI B92.1a-1976 1 1/4“ 14T 12/24 DP W3 W4 L G1 (2 Hole) 47 53 54 56

59 65 59.5 68

297.5 304 358 396

M16x2 : 26Deep M16x2 : 23Deep M16x2 : 23Deep M16x2 : 23Deep

G2 (4 Hole) M12x1.75 : 18Deep M12x1.75 : 18Deep M12x1.75 : 18Deep

Enter code in the type code: C11D : 2 Hole / C12D : 4 Hole 5.6.4 SAE CC Only with NG 280

O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

14 14 14

13 13 14

Gearing: ANSI B92.1a-1976 1 1/2“ 17T 12/24 DP W3 W4 L G1 (2 Hole) 53 54 54

65 65 66

304 358 396

M16x2 : 23Deep M16x2 : 23Deep M16x2 : 23Deep

G2 (4 Hole) M12x1.75 : 18Deep M12x1.75 : 18Deep M12x1.75 : 18Deep

Enter code in the type code: C21D : 2 Hole / C22D : 4 Hole

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63

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.6.5 SAE D

O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

14 14 14

16.5 21.5 20.5

Gearing: ANSI B92.1a-1976 1 3/4“ 13T 8/16 DP W3 W4 L G1 (2 Hole) 64 68 68

78 80 80

314 358 396

-

G2 (4 Hole) M20x2.5 : 36Deep M20x2.5 : 36Deep M20x2.5 : 36Deep

Enter code in the type code: D11D : 2 Hole / D12D : 4 Hole 5.6.6 SAE E O-ring (included in the scope of delivery)

L to mounting flange

NG 085 108 165 280

W1

W2

12

10.5

Gearing: ANSI B92.1a-1976 1 3/4“ 13T 8/16 DP W3 W4 L G1 (2 Hole) 48.5

60.5

360

-

G2 (4 Hole) M20x2.5 : 36Deep

Enter code in the type code: E11D : 2 Hole / E12D : 4 Hole

Date: 12/2014 Version: 1.0 ID No.: 11357580

64

5 Dimensions Axial piston variable-displacement pump DPVG 085 to 280 5.7 Multi-circuit pump in tandem design General The basic axial piston pump P1 can be combined with an additional axial piston pump P2 using an intermediate flange 10 and a coupling ferrule 11. The multi-circuit pump created in this manner has its own identification number. The type code must be filled in for both individual pumps using a hyphen between the two type codes.

Abbreviation

Designation

Abbreviation

Designation

P1

Basic pump

10

Intermediate flange

P2

Mounting pump

11

Coupling ferrule

L

Total length of the multi-circuit pump in mm

Note Upon request, multi-circuit pumps consisting of three individual pumps can be realized.

5.7.1 Dimensions of the multi-circuit pump in tandem design NG P1 085 108 165 280 x o L) *)

NG P2 085

108

165

280

o (L = 569 with C11D*) o (L = 568.5 with C11D* / C12D*) o (L = 651.5 with C11D* / C12D*) o (L = 667.5 with C11D* / C12D*)

o (L = 572 with D32D*) o (L = 616 with D32D*) x (L = 664 with D32D*)

o (L = 670 with V32D*) x (L = 718 with V32D*)

x (L = 756 with E32D*)

Available Upon request Not technically possible Length in mm Through-drive code for the pump 1 type code

Date: 12/2014 Version: 1.0 ID No.: 11357580

65

Changes, conditions, copyright Over the course of technical development, we reserve the right to make changes without prior announcement. ©: Information and images in this data sheet may neither be duplicated and distributed nor used for commercial purposes. All rights are expressly reserved for Liebherr according to copyright law, including in the event of applications for industrial property rights. The information in this data sheet does not release the user from the obligation to perform his own assessments and tests. If not otherwise indicated, this data sheet illustrates primarily an example configuration (DPVG 280 EL-DA). Therefore, the product delivered to you may deviate from the illustration. Deviations are also possible for data and values in this data sheet. These only serve as the default selection for the product configuration, and they are not binding. Unless stated otherwise, the values provided refer to the example configuration (DPVG 280 EL-DA). Always use the values from the installation drawing that was delivered to you. Warranty and liability conditions of the General Conditions of Business of Liebherr Machines Bulle SA and LiebherrComponents AG are not extended by the above notice.

Sales Liebherr-Components AG Postfach 222, CH-5415 Nussbaumen /AG +41 56 296 43 00, Fax +41 56 296 43 01 www.liebherr.com, E-mail: [email protected]

Development / Production Liebherr Machines Bulle SA 45 rue de l'Industrie, CH-1630 Bulle / FR +41 26 913 3479, Fax: +41 26 913 3485 www.liebherr.com, E-mail: [email protected]