PISTON FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE

摘要

A piston fuel pump for an internal combustion engine includes a pump cylinder and a pump piston, which can be axially displaced in the pump cylinder. The piston fuel pump also includes a seal which is arranged on the periphery of the pump piston. The seal has at least one bump pointing in the axial direction, and the seal axially covers the at least one bump.