4, Siemens will piezoelectric common-rail system has been put on the market several years, was first installed in the Peugeot 307 car. The company said third-generation piezoelectric common-rail injection system (PCR3) will throw in mass production. PCR3 the core components is a new type of fuel injection, significantly reduced the size of the piezoelectric actuator directly into valve shaft, so that the jet pressure system from the second-generation common-rail injection system of the 1600 ba r pressure to 1800 bar. Siemens AG said third-generation common-rail injection system of the 2000 bar pressure to achieve the goal can be achieved, so that V meet EU standards.

New nozzle so that the structure of the injector needle control very quickly in a short period of time emitting a large number of high-pressure fuel, but not because of a hydraulic system caused by the impact of the unnecessary side effects. Therefore, the engine can be designed to have five independent injector of the structure, weight of less than 1 mg of fuel can be injected into the cylinder.