Patent · US Expired

Hydraulically damping sleeve-type rubber spring

US6015141A · kind A · utility

4Cited by

9References

14Claims

0Family size

Assignee

Firma Carl Freudenberg · DE

Inventors

Hans-Joachim Rudolf · Rodenkirchen, DE
Arnold Simuttis · Bad Kreuznach, DE
Axel Rudolph · Bensheim, DE

Key dates

Filing date	Jun 4, 1997
Grant date	Jan 18, 2000
Priority date	—
Expiry date	Jun 4, 2017

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16F13/14
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulically-damping sleeve-type rubber spring with an inner support element, which is surrounded by an outer support element at a radial distance. A spring element made of an elastomeric material is arranged in the gap formed by the radial distance. The outer support element and the spring element delimit at least one working chamber, which is connected with at least one first equalization chamber by at least one damping channel to conduct fluid. Viewed in cross-section, the first equalization chamber is delimited by the outer support element and a rubber-elastic expansion wall, where at least one second equalization chamber is arranged in the first equalization chamber, and the second equalization chamber is connected with the working chamber by a connecting channel.

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