Patent · US Expired

Damper valve

US5868161A · kind A · utility

8Cited by

0References

4Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Ulrich Asbrand · Altdorf, DE
Aydogan Cakmaz · Stuttgart, DE
Juergen Class · Mühlacker, DE

Key dates

Filing date	Oct 15, 1997
Grant date	Feb 9, 1999
Priority date	—
Expiry date	Oct 15, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7869
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a damper valve for use in a steering damper arrangement of a motor vehicle having a hydrostatic displacement motor for operating the vehicle steering mechanism wherein hydraulic fluid lines extending between the hydraulic motor and a servo-valve include the damper valve, the damper valve has a throttling arrangement which permits fluid flow in one direction and limits fluid flow in the opposite direction but permits essentially unlimited fluid flow in both directions as long as the pressure difference across the damper valve is below a predetermined threshold value so as to permit unrestricted normal steering movements of the vehicle steering system, but dampen shock movements thereof.

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