1S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Detroit Diesel Wins 10th Annual SAE Off-Highway Award

“It was DDC’s outstanding work on the Series 4000 Diesel engine that led to its selection as Company of the Year. It demonstrated to the Award Committee excellent performance relating to S4000 development in each of the five categories by which entries for the Award are judged.” - Mark Miller

Award Chairman

2S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

SAE Article

3S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Low PressureSensor

High PressureSensor

ControlConnector

Rail PressureRegulator

Series 4000Common Rail Fuel System

• Two Fuel Pumps In Series

• Electronic Pilot Injection

• Engine Mounted Fuel Filters Between Fuel Pumps

• Full Electronic Controlof Individual Cylinders

• Complete Injection Timing Control– Beginning of Injection

– Injection Duration

– No Injector Cam Limitations

4S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Injectors

ECMECM

Fuel Tank

Controlled HighPressure Pump with

Pre-Supply Pump

Common Rail

FlowLimiter

RailPressureSensor

PressureLimiting

Valve

Filter

Sensors

Series 4000Common Rail Fuel System

5S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Series 4000Common Rail Benefits

• Reduced Emissions

• Reduced Fuel Consumption

• Reduced Noise Levels

• Fewer Moving Parts

• No Mechanical Adjustments Required

6S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Series 4000Fuel Injection

250

350

450

550

650

750

1350

1450

-20

-18

-16

-14

-12

-10 -8 -6 -4 -2 0

2 4 6 810 12 14 16 18 20 22 24 26 28 30

s)

SERIES 4000 CYLINDER PRESSURE

Normal Injection

Optimized Injection

STANDARD INJECTION• Long ignition delays result in large quantities of fuel being injected before beginning of combustion• It results in high rate of pressure rise, leading to shorter life and increased noise

ELECTRONIC PILOT INJECTION (EPI)• Small quantity of fuel is injected in advance of normal injection• It reduces the rate of pressure rise, thereby improving life and reducing noise & vibrations

7S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

Series 4000Pilot (Split) Injection vs. Standard Injection

8S4000\Revised 30AUG00©2000 Detroit Diesel Corporation. All Rights Reserved.

• 700 RPM, without Pilot Injection• 700 RPM, with Pilot Injection

• 1200 RPM, without Pilot Injection• 1200 RPM, with Pilot Injection

• 1800 RPM, without Pilot Injection• 1800 RPM, with Pilot InjectionNOTE: Click on icon to activate sound. Sound will run for approximately 4 seconds, or press “ESC” to abort.

(Sound levels recorded during January 2000 on 16V4000) You must have a sound card and audio

software to hear the audio clips.

Series 4000Comparison Noise Levels