Method for Producing a Piston Pump

摘要

A method is used to produce a piston pump having a housing and a piston subassembly. The piston subassembly is displaceably guided in the housing and has a first, rod-like piston element and a second, sleeve-like piston element. The second piston element is connected to the first piston element via a press fit. At least one transverse bore and a longitudinal bore are arranged in the second piston element. A stop edge for the housing is arranged on the second piston element. The piston subassembly also has an inlet valve, which includes a receiving element, in which an inlet valve spring and an inlet valve sealing element are arranged. The piston subassembly also has a corresponding inlet valve seat, which is arranged on the second piston element. While the second piston element is being machined, the press fit and the longitudinal bore are produced and/or finished in one step.

主权项

1. A method for producing a piston pump having a housing, comprising:
producing a piston assembly configured to be guided displaceably in the housing, producing the piston assembly including: producing a first rod-shaped piston element, producing a second sleeve-shaped piston element at least partially with a stepped tool, and connecting the second sleeve-shaped piston element to the first rod-shaped piston element via a press fit wherein, producing the second sleeve-shaped piston element includes arranging at least one transverse bore and a longitudinal bore which corresponds with the at least one transverse bore in the second sleeve-shaped piston element, and arranging a stop edge for the housing on the second sleeve-shaped piston element; producing an inlet valve including a receiving element in which an inlet valve spring and an inlet valve sealing element are arranged, and arranging an inlet valve seat corresponding to the inlet valve on the second sleeve-shaped piston element, wherein, during machining of the second sleeve-shaped piston element, the press fit and the longitudinal bore are at least one of produced and finished.