KRAFTSTOFFEINSPRITZPUMPE.

摘要

The engine fuel-injection pump has a plunger (1) in a working chamber (2) with connecting pipe (12) to an injector (41). A passage (4) controlled by a plug (7) connects the working chamber to an unloading one (10), the plug being held shut by a return spring (8) in the unloading chamber, which has a second unloading passage (22) with electrically-operated valve (11). The plug works against a first valve seat (32). Its opening pressure is higher than that of the injector.