Patent · US Expired

Hydraulic steering force booster

US4616727A · kind A · utility

6Cited by

4References

4Claims

0Family size

Assignee

Alfred Teves GmbH · DE

Inventors

Dieter Kircher · Frankfurt am Main, DE
Hubertus von Gruenberg · Kronberg, DE
Klaus Blum · Kelkheim, DE
Peter Becker · Gaggenau, DE

Key dates

Filing date	Mar 14, 1985
Grant date	Oct 14, 1986
Priority date	—
Expiry date	Mar 14, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62D6/02
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A device for the hydraulic boosting of steering force comprises a cylinder having a working piston which is coupled with a steering rod assembly. The cylinder includes working chambers into which hydraulic pressure can be introduced by way of multi-directional control valves. The steering aid is designed as an accessory unit for a brake system with an auxiliary hydraulic energy supply and will be put into function only during vehicle standstill or at low vehicle speeds.

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