Patent · US Active

Vibration damper with a hydraulic end stop

US9593697B2 · kind B2 · utility

16Cited by

2References

16Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Helmut Baalmann · Bergrheinfeld, DE
Stefan Schmitt · Goldbach, DE
Peter Schmitt · Erlangen, DE

Key dates

Filing date	Nov 21, 2012
Grant date	Mar 14, 2017
Priority date	—
Expiry date	Jan 10, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/16
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The vibration damper including a hydraulic end stop that has a sealing ring which is arranged between the end stop ring and the closure element, is supported axially on one side at the end stop ring, engages radially around the piston rod, is mounted in a sliding manner at the piston rod, and with its outer circumferential surface radially contacts the inner wall of the control space, wherein the sealing ring has at least one radial throttle groove which takes effect when the end stop with the sealing ring moves into the control space and ensures a defined flow of damping medium between the control chamber and the first working space, and wherein the sealing ring has a plurality of spring tongues which are supported at a supporting surface on the piston rod side.

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