Patent · US Active

Damping valve for a vibration damper

US8113324B2 · kind B2 · utility

4Cited by

7References

14Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Helmut Baalmann · Bergrheinfeld, DE
Steffen Heyn · Niederwerrn, DE
Thomas Thein · Schweinfurt, DE
Michael Hegmann · Schonungen, DE

Key dates

Filing date	May 30, 2008
Grant date	Feb 14, 2012
Priority date	—
Expiry date	Sep 8, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/5126
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A damping valve for a vibration damper includes a guide sleeve which slides on the piston rod of a vibration damper. An annular damping valve body which is provided with at least one through-opening is fixed axially by positive engagement on the guide sleeve, and the through-opening is covered at least partly by at least one valve disk which is biased by at least one closing spring which is supported at its end at a spring plate connected to the guide sleeve. The damping valve body and a spring plate which is constructed separate from the guide sleeve form a compression chain between two axially spaced stops of the guide sleeve.

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