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:
Jan. 24, 2012
Filed:
Aug. 08, 2008
Stefan Loheide, Wallenhorst, DE;
Hubert Siemer, Dinklage, DE;
Burkhard Meyer, Dinklage, DE;
Josef Burwinkel, Dinklage, DE;
Stefan Loheide, Wallenhorst, DE;
Hubert Siemer, Dinklage, DE;
Burkhard Meyer, Dinklage, DE;
Josef Burwinkel, Dinklage, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A controllable hydraulic bearing for damping vibrations in a defined frequency band is proposed, which includes an elastomeric body (), two chambers which are filled with a magneto-rheological fluid and connected with one another by at least one channel (), with the chambers having at least partially flexible chamber walls, wherein the buckling spring rate of the chamber walls represents a measure for a pressure change due to the volume displacement between the chambers, and at least one electromagnet which generates a magnetic field in the region of the channel (). According to the invention, the magnetic field in the region of the channel () is an inhomogeneous magnetic field.