Patent · US Active

Piston rod guide, in particular for a single-tube vibration damper

US7832530B2 · kind B2 · utility

0Cited by

7References

8Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Holger Beyer · Pfarrweisach, DE
Bernd Christau · Vilseck, DE
Heiko Erfurth · Walldorf, DE

Key dates

Filing date	Aug 18, 2006
Grant date	Nov 16, 2010
Priority date	—
Expiry date	Jun 27, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F9/43
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a vibration damper, comprising a cylinder (5) that is filled with damping medium, in which a piston rod (7) is guided in an axially movable manner by a piston rod guide (3), the lateral surface of the piston rod guide lying against an inner wall of the cylinder (5) and the piston rod guide being sealed in the direction of a working area at the piston rod end, the area of contact between the lateral surface (17) and the cylinder (5) relative to the working area (11) at the piston rod end having on the other side of the sealing area (23) at least one outlet (25, 29) in the direction of an outer end face (31) of the vibration damper.

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