LUXEMBOURG, Sep. 14, 2009 (Marketwire) --
LUXEMBOURG -- (Marketwire) -- 09/14/09 -- New developments in the area of fuel injection systems, ignition, valve train and ancillary systems from Delphi Corporation (PINKSHEETS: DPHIQ) will help European manufacturers of gasoline engines meet growing demands for reduced CO2 and other tailpipe emissions without the cost and risk of radically different technologies. The new systems are part of Delphi's broad portfolio of powertrain technologies for gasoline, diesel, hybrid and alternative fuel vehicles.
Helping OEMs meet tomorrow's technical challenges at manageable cost
"Our strategy is to help vehicle manufacturers meet their emissions targets at minimum cost and with minimal technical risk by offering a portfolio of both revolutionary and evolutionary technologies," explains Delphi Powertrain Systems engineering director, Europe gasoline engines, Dr. Sebastian Schilling. "Delphi's understanding of the interdependencies of systems at the whole vehicle level gives us tremendous insight into their interactions, helping us see where the most cost-effective benefits can be achieved and allowing us to support a wide range of emissions control strategies."
Delphi's portfolio of technologies for gasoline engines includes port fuel injection, homogeneous and stratified gasoline direct injection (GDi) and compressed natural gas (CNG), new Multi-Charge Ignition, and the new electrically driven cam phaser (e-Phaser). "Whatever the engine technology strategy, we have systems that can simplify implementation, reduce costs and help deliver greater efficiency," says Dr. Schilling.
New Multec® fast solenoid injectors provide high-performance GDi with lower cost and weight
Delphi offers two GDi injector strategies to meet today's market demands: a family of Multec inwardly opening multi-hole injectors for homogeneous combustion, and the Multec 20 outwardly opening injector for stratified engines. Both types of injectors are operated by conventional solenoid technology, which offers a significant cost advantage. Delphi's Multec 20 Fast Single Coil solenoid injector, designed specifically for spray stratified lean combustion applications, provides outstanding spray and fuel injection performance at a significantly lower cost and lower weight than conventional piezoelectric technology. Spray-guided combustion has higher requirements than homogeneous direct injection for spray stability and penetration, fuel atomization, and the capacity for precisely controlled, closely-spaced multiple injections in order to produce the desired mixture distribution for robust flammability at the spark plug gap. To fulfill these requirements current production injectors use piezoelectric actuation in conjunction with an outwardly opening valve. Delphi's Fast Single Coil injector maintains the performance benefit of the piezoelectric systems over conventional injection technology without the additional cost associated with the piezoelectric actuator and high voltage electronic driver circuits. Basically the same control system hardware can be used for the Multec family of injectors for homogeneous programs, and Multec 20 injectors for stratified applications. Both Multec types of injectors feature best-in-class NVH (Noise, Vibration, Harshness), which is important because it saves the vehicle manufacturer the cost and weight of additional noise reduction materials.
"By 2017, we expect a 40:60 split in the gasoline market in Europe between port injection and direct injection," says Dr. Schilling. "GDi is essential for the accelerating trend toward downsized turbocharged engines as by cooling the charge it allows higher boost levels or a higher compression ratio. This results in a more fun-to-drive experience with better fuel economy."
Optimized and cost-effective new CNG injector
"To support vehicle manufacturers considering alternate fuels such as CNG, which can reduce greenhouse gas emissions by as much as 25 percent, Delphi is developing an injector that is optimized for the unique chemical and physical properties of this low lubricity fuel," says Dr. Walter Piock, chief engineer advanced powertrain. "A further benefit is that the new CNG injector can be driven by a typical gasoline ECM (Electronic Control Module) which enables low cost implementation.
