Patent ID: 6725840
Filing Date: 2004-04-27
Classification: F02M

Abstract:
A fuel injection system (1) comprising one or more unit fuel injectors (6) or pump-line-nozzle units, corresponding in number to the cylinders, for compressing the fuel, said fuel injection system (1) including a fuel injector (6) having a nozzle chamber (15) and a control chamber (16), a high pressure delivering means comprising a compression device (7) for compressing fuel in a compression chamber (8), a pressure line (17) connecting said fuel compressing device (7) with said nozzle chamber (15), said pressure line including a pressure storage chamber (12), which can be decoupled from the fuel compressing device (7), said pressure storage chamber (12) communicating with said compression chamber (8), said nozzle chamber (15) and said control chamber (16) and a 2/2-way valve (11) for lowering the pressure in the storage chamber (12) and having means for throttling the valve cross section inside the valve, said valve (11) being positioned in said pressure line (17) between said fuel compressing device (7) and said nozzle chamber (15).