The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 2002
Filed:
Nov. 27, 2000
Arnold Simuttis, Bad Kreuznach, DE;
Werner Hettler, Mannheim, DE;
Firma Carl Freudenberg, Weinheim, DE;
Abstract
A switchable, hydraulically damping bearing has a supporting bearing and a bearing member that are elastically supported upon one another by a bearing spring made of an elastomeric material. The bearing has a working chamber and a compensating chamber that are arranged consecutively in the direction of vibrations. The chambers are filled with damping fluid. The working chamber and the compensating chamber are delimited by a shared partition on the sides facing each other. The chambers are connected in a fluid-conducting manner by at least one damping conduit provided in the partition. The working chamber is delimited by at least one elastic diaphragm that delimits an air chamber on the side facing away from the working chamber. The air chamber is connected to the environment by a switchable intake valve or a non-return valve, depending on the operating state of a supported engine. The air chamber can be filled with air flowing through the non-return valve when the intake valve is closed and the bearing executes pulling movements, thereby increasing bearing rigidity.