2, Germany-Erfu company's IV line with European standards of common rail systems, the fuel injector voltage battery voltage control, this is a very simple and low cost of electronic control devices. Delphi Corporation has begun to develop in line with European emission standards of a new generation of V common-rail system (expected by the end of 2004 or early 2005 on the market), and also study the new piezoelectric injection system, in order to make heavy-duty vehicles to meet the EU V And the new U.S. emissions regulations. And the current piezoelectric common-rail systems, Delphi hopes to produce a new generation of piezoelectric injection system of emissions should be reduced 2 5% ~ 3O%. Piezoelectric injector technology to ensure that injection system in each cycle and high-precision fuel injection seven times over.

3, Japan Electrical Company in 1995 developed the first high-pressure common rail diesel system, the company will be 1 800bar injection pressure for a new generation of common rail systems installed in the Mazda MPV and Mazda 6 sedan, the new Generation common-rail system, including: for pumps, with a common rail high pressure sensors, electromagnetic injector and by the driver of an electronic fuel injection devices and electronic engine controls a combination of control components, since the system started in 2002 Daou has IV standards.