Patent · US Expired

Vane pump

US5702242A · kind A · utility

4Cited by

4References

3Claims

0Family size

Assignee

Luk Fahrzeug-Hydraulik GmbH & Co. KG · DE

Inventors

Thomas Nied-Menninger · Usingen, DE
Randolf Kortge · Usingen, DE
Bernd Denfeld · Bad Homburg vor der Höhe, DE

Key dates

Filing date	Apr 26, 1995
Grant date	Dec 30, 1997
Priority date	—
Expiry date	Apr 26, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C2/3446
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A vane pump including a rotor, which is arranged within a cam ring located in the pump housing, and which carries a plurality of radially displaceable vanes which are also displaceable along the inner double-symmetrical contour of the cam ring, with the inner contour defining two diametrically opposite pump chambers and with each chamber being divided in three sections forming, respectively, a suction region, a pressure region, and a separation region between the suction and pressure regions.

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