Powertrain Systems

The Delphi Diesel Unit Pump Diesel Common Rail (UPCR) System is an innovative engine management concept that leverages advanced common rail technology — a proven "green" strategy — for very small diesel engine programs. The system offers manufacturers a cost-effective, robust solution to help them achieve optimal fuel efficiency and meet stringent emissions standards, such as Euro 4.

Key features of the Delphi Diesel UPCR System include fast solenoid diesel injectors and a common rail, a program-tailored engine control module (ECM), robust unit fuel pump with an inlet metering valve, as well as an efficient, low cost fuel filter.

Benefits

• Low cost engine management system designed to provide the necessary high value essential to the market success of entry-level market products and economy segment vehicle programs.
• Compact package size enables relative ease of application in very small engine programs.
• Light weight system contributing directly to CO₂ reduction.
• High system pressure (up to 1,600 bar) achieves high efficiency and excellent engine performance.
• Proven, compact fast response solenoid diesel fuel injectors are capable of up to five injections per cycle. The multi-injection capability enables precise tuning of combustion to help meet emissions, fuel economy and noise targets.
• Simple, robust unit pump provides reliable performance and contributes to an overall economical system cost.
• All-new engine control module options include a low cost, limited function ECM (DCM 2.5) and a full function module (DCM 3.x) to help meet the manufacturer’s specific program targets.
• The UPCR System is able to drive devices such as a turbocharger (fixed or variable), an exhaust gas recirculation (EGR) valve and intake throttle control. Air management capability helps meet emissions standards, such as Euro 4.

Typical Applications

The Delphi Diesel Unit Pump Common Rail System is specifically designed for 1-, 2-, and 3-cylinder engine applications. It is ideal for small engine vehicles destined for emerging markets and for entry-level vehicles that will be marketed in developed regions. It is also well-suited for other non-automotive diesel engine products such as small agricultural and industrial equipment.

Performance Advantages

Delphi, the recognized industry leader in diesel injection technology, is applying the proven benefits of a common rail strategy to small diesel engines to help manufacturers enhance the fuel efficiency of their products and help them meet stringent emissions standards.

The Delphi Diesel Unit Pump Common Rail System features state-of-the-art, reliable Delphi diesel injection technology and Delphi's patented fuel control strategies:

• Accelerometer Pilot Control (APC)
• Speed Pilot Control (SPC)
• Individual Injector Characterization (I3C)

The Delphi Advantage

Delphi is a world leader in innovation, design and the manufacture of diesel engine management systems and components. Our revolutionary direct acting light duty diesel common rail system and best-value conventional solenoid light duty diesel common rail systems are examples of our ingenuity. Delphi offers a wide portfolio of diesel engine technologies for light duty, medium duty and heavy duty applications.

As a global leader in engine management systems technology, Delphi can help manufacturers meet emissions requirements, improve fuel economy and enhance performance. Delphi is a source for high value solutions and our systems approach is built into every product. Delphi's flexible engineering approach encourages collaboration. And Delphi has a thorough understanding of markets around the world and a global network of resources.