Patent · US Active

Hydraulic circuit, particularly for camshaft adjusters, and corresponding control element

US7836857B2 · kind B2 · utility

7Cited by

11References

6Claims

0Family size

Assignee

Hydraulik-Ring GmbH · DE

Inventors

Andreas Knecht · Herrenberg, DE
Dirk Pohl · Kirchentellinsfurt, DE
Jens Bartzsch · Rottenburg am Neckar, DE
Gordon Neudoerfer · Aschersleben, DE

Key dates

Filing date	Sep 15, 2008
Grant date	Nov 23, 2010
Priority date	—
Expiry date	May 21, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7904
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a valve and suitable hydraulic circuit, especially for camshaft adjusters of an internal combustion engine. The hydraulic circuit comprises a number of check valves or two-way valves operating as check valves, in order to provide a rapid camshaft adjuster with a high regulating quality.

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