Plug-in pump has hollow cylinder with cylinder head and piston which is included in hollow cylinder, where piston is limited by end of pump chamber and is overlapped by another end of hollow cylinder

摘要

The plug-in pump has a hollow cylinder (4) with a cylinder head (3) and a piston (5) which is included in the hollow cylinder. The piston is limited by an end of a pump chamber (6) and is overlapped by another end of the hollow cylinder. The hollow cylinder is fixed at a cup (7) and is slidable in the direction of the pump chamber. The cup encloses the hollow cylinder from outside. A bearing insert (9) for an eccentric (2) of a driveshaft (1) is arranged on the side of the cup turned away from the piston.