Patent · US Active

Hydraulic system

US8302395B2 · kind B2 · utility

0Cited by

2References

8Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Jochen Pfister · Strasbourg, FR
Reinhard Stehr · Bogen, DE
Roshan Willeke · Karlsruhe, DE
Eric Muller · Contz-les-Bains, FR

Key dates

Filing date	Dec 19, 2008
Grant date	Nov 6, 2012
Priority date	—
Expiry date	Jul 26, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/66286
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic system for actuating a belt-driven conical-pulley transmission having a variably adjustable transmission ratio, of a vehicle, including at least one hydraulic energy source and having a torque sensor that is supplied with working medium by a pump flow of the hydraulic energy source. A disconnection valve is connected between the hydraulic energy source and the torque sensor, which makes it possible to connect or disconnect an additional pump flow of the hydraulic energy source, depending on need.

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