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Patent Searching and Data


Title:
HYDRAULIC BEARING BUSH
Document Type and Number:
WIPO Patent Application WO/2019/137645
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 sectors of the circumference, said chambers being connected to each other via at least one compensation and throttle channel; the inner bush consists of at least two hollow cylindrical members which are coaxially inserted into one another, and the compensation and throttle channel is formed substantially in the connection zone (contact zone) between the hollow cylindrical members.

Inventors:
GROTSCH, Sara (22303 Hamburg, 22303, DE)
SANZ, Andre (21077 Hamburg, 21077, DE)
Application Number:
EP2018/078473
Publication Date:
July 18, 2019
Filing Date:
October 18, 2018
Export Citation:
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Assignee:
CONTITECH LUFTFEDERSYSTEME GMBH (Vahrenwalderstr. 9, Hannover, 30165, DE)
International Classes:
F16F13/14
Foreign References:
EP0296062A11988-12-21
EP1378682A12004-01-07
DE10310633A12004-09-30
EP1282788A12003-02-12
US4763884A1988-08-16
DE10310633A12004-09-30
Attorney, Agent or Firm:
KILSCH, Armin (Continental Aktiengesellschaft, Intellectual PropertyPostfach 169, Hannover, 30001, DE)
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