Kubota Tier 4 Strategy for CR models

KEA Engineering Distributor Meeting September 2014

Kubota Engine America

EPA/CARB Emissions Regulation Power Range

Model Year

8≦ kW ＜19

19≦ kW ＜37

37≦ kW ＜56

56≦ kW ＜75

75≦ kW ＜130

2005

2006

2007

2008

2009

Tier2

Tier4

(7.5/6.6/0.80)

(7.5/6.6/0.40)

2010

2011

2012

(NOX + HC / CO / PM) g/kW-hr

2013

2014

2015

Transient Cycle

Tier2

Interim Tier4

Tier4

(7.5/5.5/0.60)

(7.5/5.5/0.30)

(4.7/5.5/0.03)

Tier2

Interim Tier4 Option #1

Tier4

(7.5/5.0/0.40)

(4.7/5.0/0.30)

(4.7/5.0/0.03)

Tier2

Tier3

Interim Tier4

(7.5/5.0/0.40)

(4.7/5.0/0.40)

(3.4/0.19/5.0/0.02)

Tier4 (0.40/0.19/ 5.0/0.02)

Tier2

Tier3

Interim Tier4

(6.6/5.0/0.30)

(4.0/5.0/0.30)

(3.4/0.19/5.0/0.02)

Tier4 (0.40/0.19/ 5.0/0.02)

Kubota Engine America

Stage 5 0.4/0.19/ 0.015/ 1x1012 Stage 5 0.4/0.19/ 0.015/ 1x1012

Stage 5: DPF is mandatory Kubota Engine America

Kubota Tier 4 Strategy Power Range

8≤ kW < 19

2012

2013

2014

2015

Engine Optimization (to meet NRTC) DPF Solution

19≤ kW < 56

CR-System + EGR + DPF DOC Solution

19≤ kW < 56

CR-System + EGR + IC + DOC Turbo Models Only

56≤ kW < 130

CR-System + EGR + DPF

+

Inter Cooler NOx After Treatment Final Tier 4

Kubota Engine America

Common Rail System (CRS)＋After Treatment Devices

Control DPF Regeneration by CRS

Injection Pattern Control

☆Injection Pattern Control ・Timing ・After Injection ・Post Injection

EGR Valve

Injection Rate

☆Valves Control ・EGR ・Inlet Throttle

Minimize Noise

Main Combustion

Exh. Temp Control

PM burning

Main Pre

After

Inlet Throttle Valve

TDC

Post

BDC

Crank Angle

EGR-Cooler

Common Rail Injection System DPF Oxidation Catalyst

DOC

PM Filter with Catalyst

DPF

Turbo Charger

Kubota Engine America

Regeneration Controls ECU

Engine Speed Accelerator Pos. EGR Valve Pos. Injection Quantity

DPF Regeneration Control

Inlet Throttle Valve

Injection Pattern Injection Pres. Atmosphere Pres.

EGR Valve

Fuel Temperature ・

C R

EGR Cooler

S

NE

T1

ΔP

T3

Delta P Sensor

Ga

DOC

Mass Air Flow Sensor

T2

DPF

Catalyst＋DPF Exhaust Temperature Sensor

Kubota Engine America

DOC Solution ☆Injection Pattern Control ・Timing ・After Injection

Injection Pattern Control

☆Valves Control ・EGR EGR Valve

Injection Rate

Minimize Noise

Main Combustion

Exh. Temp Control

Main Pre

After TDC

BDC

Crank Angle

EGR-Cooler

Inter-Cooler

Common Rail Injection System

Diesel Oxidation Catalyst

DOC

DOC

Turbo Charger

Kubota Engine America

DOC Solution

ECU Engine Speed Accelerator Pos. EGR Valve Pos. Injection Quantity

EGR Valve

C

Injection Pattern

R

Injection Pres.

EGR Cooler

Inter-Cooler

S

Atmosphere Pres. Fuel Temperature

NE

Ga

DOC

Mass Air Flow Sensor

DOC

Diesel Oxidation Catalyst

Kubota Engine America

Diesel Engine Line Up

KEA Engineering Distributor Meeting September 2014

Kubota Engine America

Kubota Diesel Engine Line Up Tier 4

Z602

D722

D902

D1005

D1105

D1305

V1505

12.5 kW 3600 rpm

14.9 kW 3600 rpm

18.5 kW 3600 rpm

18.5 kW 3200 rpm

18.5 kW 3000 rpm

18.5 kW 2600 rpm

18.5 kW 2300 rpm

9.9 kW 3600 rpm

14.9 kW 3600 rpm

10

10.8 kW 1800 rpm

12.6 kW 1800 rpm

14.2 kW 1800 rpm

16.4 kW 1800 rpm

D1503

Z482 < 19kW Industrial

9.9 kW 3600 rpm

< 19kW Generator

Engine Models

< 19kW

18.5 kW 1800 rpm

Kubota Engine America

Kubota Diesel Engine Line Up Tier 4

DOC Generator

DOC Industrial

D1803-CR

D1803CR-T

V2403-CR

V2403-CR-T

V2607-CR-T

V3307-CR-T

V3800-CR-T

V3800-CR-T Interim Tier 4

V3800-CR-TI Tier 4 Final

DPF Industrial

Engine Models

> 19kW

28 kW 2700 rpm

37 kW 2700 rpm

37.4 kW 2700 rpm

48.6 kW 2700 rpm

53 kW 2700 rpm

55.4 kW 2600 rpm

55.4 kW 2200 rpm

74.5 kW 2600 rpm

85 kW 2600 rpm

37 kW 2700 rpm

27 kW 1800 rpm

48.6 kW 2700 rpm

53 kW 2700 rpm

55.4 kW 2600 rpm

55.4kW 2200 rpm Under Consideration

55.4kW 1800 rpm

36.5 kW 1800 rpm

Under Consideration

11

Kubota Engine America

DOC Model Schedule (Industrial)

SOP Mass Production

sample engine

Q1

Q2

Q3

for OEM

2014

Q2

Q1

Q4

2015

Industrial : JUN~

Industrial : JAN~

Sample Engine

SOP Mass Production

Kubota Engine America

DOC Model Schedule (BG)

SOP Mass Production

sample engine

Q4 2014

for OEM

Q1

Q2

Q3

2015 BG : JUN~

BG : Oct~

SOP Mass Production

Sample Engine

Kubota Engine America

KEA CRS DPF Standard Engine Line Up

Kubota Engine America

KEA CRS STANDARD ENGINE CONFIGURATION Customer must use these settings

SAE J1995 Gross Intermittent

Base Engine

Rated Power

Low Idle

Comment

V3800-CR-TE4B-KEA-1

74.5 kW @ 2600

1100 RPM

Industrial >56 kW

V3800-CR-TE4B-KEA-2

55.4 kW @ 2400

1100 RPM

Industrial