Fuel injection device for combustion engine has spring chamber connected to low-pressure region via non-return valve opening into spring chamber for greater throughflow cross-section than choke point

摘要

The fuel injection device has a high-pressure fuel pump and a fuel injection valve for a cylinder of the internal combustion engine. A spring chamber (46) with a closure spring (44) is connected to a low-pressure region (62) via a non-return valve (80) that opens into the spring chamber and that enables a greater throughflow cross-section than that of a choke point (78).