Patent · US Expired

Radial piston pump

US6779986B1 · kind B1 · utility

1Cited by

8References

20Claims

0Family size

Assignee

Luk Fahrzeug-Hydraulik GmbH & Co. KG · DE

Inventors

Peter Breuer · Madrid, ES
Bernd Denfeld · Bad Homburg vor der Höhe, DE
Axel Fassbender · Offenbach, DE
Antonia Schlosshan · Frankfurt, DE

Key dates

Filing date	Aug 13, 2002
Grant date	Aug 24, 2004
Priority date	—
Expiry date	Aug 13, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B49/225
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a radial piston pump, comprising an inlet chamber with an inlet connection, an eccentric which may be driven in a rotating manner, arranged within the inlet chamber, for driving at least one piston of the radial piston pump, a cylinder bore for guiding the piston and an inlet controller, which opens and closes a connection between the inlet chamber and the cylinder bore, depending on the piston position. The radial piston pump is characterized by at least one balancing element (24, 25) for the eccentric (17), which rotates synchronously with the eccentric (17) in the inlet chamber (20), the balancing element (24, 25) being so arranged in the inlet chamber (20) and/or so formed in its contour that a hydraulic resistance is formed between the inlet connection (8′) and inlet controller (31), or the flow of medium reaching the inlet controller (31) is unaffected.

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