Patent · US Expired

Radial piston pump

US4310290A · kind A · utility

4Cited by

3References

9Claims

0Family size

Assignee

G. L. Rexroth GmbH

Inventors

Jorg Dantlgraber · Lohr am Main, DE
Dietmar Gossl · Gössenheim, DE
Horst Krämer · Ginsheim-Gustavsburg, DE

Key dates

Filing date	Apr 5, 1978
Grant date	Jan 12, 1982
Priority date	—
Expiry date	Apr 5, 1998

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B1/0535
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A radial piston pump has a housing bounding a suction chamber therein and provided with a plurality of pressure ports spaced from one another in circumferential direction of this housing, and with at least one suction port. A plurality of valve units spaced from one another in the circumferential direction of this housing are provided, each of which includes a pressure valve element located in a respective one of the pressure ports and a sleeve member mounted in the same pressure port radially outwardly of the pressure valve element so as to form, together with the latter, a pressure chamber inwardly of and communicating with the pressure port. A plurality of circumferentially extending channels are formed in this housing and intersect the respective pressure chambers.

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