Powertrain Systems

The Delphi E1 Diesel Electronic Unit Injector is a lightweight and compact fuel injection system for heavy duty applications to help manufacturers meet Euro III and US02/04 emissions standards, with potential for Euro IV and Euro V.  The Delphi E1 EUI is based on Delphi's successful EUI 200 Electronic Unit Injector and features the same basic operation, but with increased pressure capability and reduced size and weight.  It also features a smaller spill valve and actuator which are incorporated into the body of the injector to improve packaging.  The Delphi E1 provides high-speed operation, electronic pilot injection, individual injector electronic characterization, reduced response time and reduced noise.

Benefits

• Streamlined and compact design provides extra space in the cylinder head
• Peak injection pressure increased from 1,650 bar to 2,000 bar
• Reduced pumping route of the fuel increases hydraulic efficiency and enhances response, while load on the drivetrain is decreased
• High-strength nozzle assembly with smaller needle, adds responsiveness and promotes more consistent control of the fuel charge and timing
• High-voltage drive system and individual electronic characterization strategy enable compensation for minor inconsistencies in performance

Typical Applications

The Delphi E1 Diesel Electronic Unit Injector is designed for heavy duty engine applications to help manufacturers meet Euro III and US 02/04 emissions regulations.

Performance Advantages

The Delphi E1 Diesel Electronic Unit Injector provides increased pressure capability while its compact design provides a smaller installation envelope to benefit engine designers.  Sensors provide digital signals to the engine control unit (ECU) on a wide range of engine functions, including accelerator position, engine speed, camshaft position, air inlet manifold pressure and temperature, ambient air temperature, and more.  This information is continuously compared with optimum values enabling the Delphi E1 EUI to deliver fuel at the appropriate timing required by the engine.

Specifications

The Delphi Advantage

Delphi is an industry leader in diesel fuel injection technology and actively involved in the development of advanced diesel technology that can help vehicle manufacturers meet stringent emissions requirements while enhancing fuel economy and providing robust performance.  Extensive experience in high-pressure fuel injection technology has helped Delphi develop several strategies that provide cost-competitiveness, high-value, low noise and the ability to deliver accurate injection over the life of the vehicle.

Delphi has 15 diesel design and engineering centers located in Europe, Asia, North America and South America, and 21 diesel manufacturing facilities in 13 countries enabling exceptional on-time delivery.