Patent · US Expired

Regulatable pump

US6457946B2 · kind B2 · utility

11Cited by

4References

3Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Marko Gretzschel · Berlin, DE
Nico Jäkel · Berlin, DE
Tilo Koch · Ingolstadt, DE
Jörg Pätzold · Bad Dürkheim, DE

Key dates

Filing date	Dec 26, 2000
Grant date	Oct 1, 2002
Priority date	—
Expiry date	Dec 26, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04C14/226
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A regulatable pump, in particular a vane pump, is provided with a rotor, with a rotor body and with at least one guide ring and with a cam ring. The eccentricity of the cam ring can be adjusted by means of a regulating piston, a journal of the cam ring lying between a spring-pretensioning means and the regulating piston. At maximum eccentricity, the cam ring bears on the outside by means of a bearing part of its circumferential wall against a bearing surface on the inside of the housing.

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