Title:
HYDRAULIC BEARING BUSH
Document Type and Number:
WIPO Patent Application WO/2019/137646
Kind Code:
A1
Abstract:
Hydraulic bearing bush, in particular for railway vehicle running gear, said hydraulic bearing bush having the following features: - an inner bush designed to accommodate a bearing pin; - an annular rubber element which substantially surrounds the inner bush and is connected thereto over the outer circumference thereof, preferably being cured onto the circumference thereof; - two annular supporting rings which are cured onto the rubber element at its two axial ends and are preferably made of metal; - an outer annular housing, at the inner circumference of which, preferably at the two axial ends of which, the supporting rings rest; and - at least two chambers which are formed in the circumferential direction between the annular rubber element and the annular housing, can be filled with a hydraulic liquid and each extend over some segments of the circumference, said chambers being connected to each other via at least one compensation and throttle channel; the inner bush has a preferably circumferential cavity, and the compensation and throttle channel is formed substantially by at least one separate tubular conduit element, preferably by at least one flexible hose, which is located in said cavity.
Inventors:
GROTSCH SARA (DE)
SANZ ANDRE (DE)
SANZ ANDRE (DE)
Application Number:
PCT/EP2018/078474
Publication Date:
July 18, 2019
Filing Date:
October 18, 2018
Export Citation:
Assignee:
CONTITECH LUFTFEDERSYSTEME GMBH (DE)
International Classes:
F16F13/14
Domestic Patent References:
| WO2015139857A1 | 2015-09-24 |
Foreign References:
| JPS62184250A | 1987-08-12 | |||
| JPS629039A | 1987-01-17 | |||
| US4753421A | 1988-06-28 | |||
| DE10310633A1 | 2004-09-30 |
Attorney, Agent or Firm:
KILSCH, Armin (DE)
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