Delphi reveals new modular diesel common-rail family

Delphi Automotive is launching a new family of diesel common-rail systems including diesel solenoid injectors, fuel pumps, Engine Control Units (ECU) and rails for light- and medium-duty applications.

The benefits of this new engine family include low fuel consumption and CO₂ emissions through improved combustion, weight reduction and hydraulic, mechanical and electrical efficiency; cost-effective and flexible solutions through simpler, modular component features and optimised functions; and fun to drive and reliability through low combustion noise, high performance and diesel fuel robustness.

The new family of technologies, which will be available later this year on a new engine of a major European car manufacturer, was introduced during the 35^th annual International Vienna Motor Symposium, held May 8-9 at the Congress Center in Hofburg, Austria.

“This new high-performance, modular family of Diesel Common Rail Systems will help car manufacturers improve fuel efficiency,” said John Fuerst, president, Delphi Diesel Systems. “Our engineers’ innovative concepts are dedicated to assisting our customers in meeting increasingly strict emissions standards, while maintaining the performance levels consumers expect.

Delphi says its modular approach for its common-rail systems allows a robust design with a range of performances matching different engine needs. According to Fuerst, the supplier says OEMs won’t need to modify their engines to fit Delphi systems. The modular approach helps engine manufacturers to integrate the technologies in their engine family with the possibility to optimise the injection performance in the same environment.

The new family of diesel fuel injection equipment offers improved performance through injection pressure increased up to 2500 bar; leakage reduction; and increased multiple injection optimisation, as the fuel injectors are capable of up to nine injections per cycle. These innovations translate into better injection control and better combustion, therefore reducing fuel consumption, CO₂ and other emissions.

“The fuel efficiency that diesel engines offer allows them to successfully penetrate both the passenger and commercial vehicles,” said Fuerst. “Their best-in-class fuel economy will continue to ensure diesel engines are a popular choice across Europe and in many other markets.”

Photographs: The new diesel ECUs deliver increased input/output capability and include an evolution of the microprocessor to a multicore architecture for more processing power; new injector family is composed of three new solenoid injectors offering a rising level of performance available for targeted vehicle segments and regions. Injection pressure is up to 2500 bar.