Pump-nozzle unit for a combustion engine comprises a moving membrane or moving bellows for sealing a transmission chamber via a control valve

摘要

u Pump-nozzle unit comprises a moving membrane or moving bellows (47) for sealing a transmission chamber (41) via a control valve (5). Preferred Features: A front surface (43) of a first transmission piston (39) and a front surface (45) of a second transmission piston (37) delimits the transmission chamber. The front surface of the first transmission piston is larger than the front surface of the second transmission piston. The transmission chamber is delimited by the housing in the radial direction. The moving bellows is a folded bellows.