Fuel injector has injector housing or body and high pressure chambers arranged in housing, which permanently communicates with fuel-high pressure source

摘要

The fuel injector (1) has an injector housing or body (2) and high pressure chambers (4,5) arranged in the housing, which permanently communicates with a fuel-high pressure source (11) and is connected with a combustion chamber by nozzle (9) controlled by a nozzle needle (8). A coaxial plunger (24) is arranged on a slave piston (19), whose free front side is impinged by low pressure existing in a low pressure chamber (27).