Patent · US Active

Device for actuating a plurality of hydraulic control cylinders

US8137237B2 · kind B2 · utility

2Cited by

3References

8Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Martin Staudinger · Ettlingen, DE
Eric Mueller · Zürich, CH

Key dates

Filing date	Feb 11, 2008
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Jan 20, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87917
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A device for actuating a plurality of hydraulic control cylinders having a pressure regulating valve with a first and a second pressure regulating output, a first selector valve connected downline from the pressure regulating outputs, a second selector valve connected downline from the first selector valve, having a plurality of individual pressure outputs, where the second pressure regulating output is optionally assignable through the first and second selector valves to one of the individual pressure outputs, and the particular individual pressure outputs that are not assigned to the second pressure regulating output are assignable to the first pressure regulating output.

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