Patent · US Active

Hydraulic system

US7975474B2 · kind B2 · utility

0Cited by

2References

24Claims

0Family size

Assignee

LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

Martin Staudinger · Ettlingen, DE
Laurent Ineichen · Strasbourg, FR
Marco Grethel · Frebershausen, DE
Eric Muller · Contz-les-Bains, FR

Key dates

Filing date	Mar 5, 2008
Grant date	Jul 12, 2011
Priority date	—
Expiry date	Jul 19, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/0034
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic system including a pump for feeding hydraulic fluid from an inlet side to an outlet side. A pressure accumulator is disposed at the outlet side, and between the pump and the pressure accumulator a hydraulic control valve is disposed, which has at least two valve positions. The outlet side of the pump is connected to the pressure accumulator in a second valve position, and is separated from the pressure accumulator in a first valve position. The outlet side of the pump is connected to the inlet side through the control valve in the first valve position.

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