Patent · US Active

Method for producing a piston pump

US9808895B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Bernard Huckenbeck · Weitnau, DE
Marc Zimmermann · Sonthofen, DE
Martin Juretko · Hildesheim, DE

Key dates

Filing date	Dec 28, 2015
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Dec 28, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49252
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.