Vibration damper

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7997392
APP PUB NO 20100116606A1
SERIAL NO

12451597

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vibration damper, e.g. for damping retraction or extension springing forces on motor vehicles, includes a pressure medium cylinder in which a piston with a piston rod is axially slidably arranged. The piston divides the cylinder into first and second chambers which contain an electrorheological or magnetorheological fluid as a pressure medium. The two chambers are connected with one another through a throttle gap with at least one field generating element arranged adjacent thereto. The length of the throttle gap is divided by a gap intersection point into a first throttle gap section connected with the first chamber, and a second throttle gap section connected with the second chamber. A non-return check valve is arranged in a bypass gap connected parallel to the first throttle gap section between the gap intersection point and the first chamber.

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS EUROPE GMBH85445 SCHWAIG-OBERDING

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rosenfeldt, Horst Gross-Zimmern, DE 9 120
Stork, Michael Darmstadt, DE 3 37

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