Patent · US Expired

Electric servo-assisted steering system for motor vehicles

US7048088B2 · kind B2 · utility

7Cited by

9References

6Claims

0Family size

Assignee

ZF Lenksysteme GmbH · DE

Inventors

Werner Bernhard · Heubach, DE
Achim Schust · Gaildorf, DE
Oliver Hetzel · Schwäbisch Gmünd, DE
Joachim Fischer · Rodgau, DE

Key dates

Filing date	Oct 15, 2002
Grant date	May 23, 2006
Priority date	—
Expiry date	Oct 15, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/19842
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electric power assisted steering system for motor vehicles having a worm gear mechanism is operatively connected to a drive shaft of an electric drive motor. A radial load is applied to the worm by a prestressing device, the prestressing device being configured as a hydraulic pressure device. It is possible to connect the drive shaft to the worm by a coupling, and the worm is mounted in this region by a pivotable bearing.

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