Powertrain Systems

The Delphi F2P Distributed Pump Diesel Common Rail System (F2P System) is a new concept in heavy duty diesel common rail technology. It provides a cost effective upgrade path to an ultra high pressure common rail solution for heavy duty engines based on current electronic unit pump (EUP) technology.

Driven by the engine's camshaft or mounted in a separate cam box, the enhanced electronic unit pumps constantly charge up the common rail to ultra high pressures. Dependent on the power requirement of the application, this can be achieved by using any combination of electronic unit pumps between two and six per engine. The pressurized rail provides the injectors with a constant source of ultra high pressure fuel at any engine speed, allowing the injectors to provide fully flexible injection capability, particularly related to close coupled small quantities.

Benefits

• Fits within existing EUP engine packaging
• Fewer pumping elements reduces engine stress and lowers cost
• Based on Delphi's robust, proven electronic unit pump system combined with new ultra high pressure common rail injector technology
• Wide range of nozzle options available
• Scalable distributed pump technology enables installation of a variety of pumps to meet various engine power ratings
• Fully flexible injection capability
• Small quantity injection control
• Close coupled multiple injection capability
• Low mechanical noise
• Ultra high pressure capability (up to 3,000 bar) provides the potential to minimize the need for aftertreatment devices
• On board diagnostics and dynamic trimming capability
• Target emissions: Euro VI, post-US 10, post-Japan NLTR, Tier I
• Dynamic selective replacement

Typical Applications

The Delphi F2P Distributed Pump Diesel Common Rail System is suitable for nine to 16 liter heavy duty diesel engines that are used for on- and off-highway applications.

Specifications

Performance Advantages

The Delphi F2P Distributed Pump Diesel Common Rail System is the ultimate common rail solution for electronic unit pump engines. By utilizing the engine cam to pressurize the rail, the system provides manufacturers with a cost effective upgrade strategy for existing EUP engines. Depending on the power requirement of the application, this can be achieved by using any combination of unit pumps (from two to six) per engine. The F2P System allows engine manufacturers to combine the benefits of ultra high pressure and fully flexible injection for optimized combustion across the engine speed range. This reduces the need for expensive aftertreatment systems and maximizes engine efficiency.

The Delphi Advantage

Delphi is a world leader in innovation, design and the manufacture of heavy duty diesel fuel systems. Delphi has many years experience in the heavy duty market and a long history of working closely with engine manufacturers. Delphi heavy duty diesel fuel systems can be found on millions of engines around the world.

As a global leader in engine management systems, Delphi can help manufacturers meet emissions requirements, improve fuel economy and enhance performance. Delphi is a source for high value solutions and our systems expertise 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.