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:
Sep. 15, 2009
Filed:
Apr. 29, 2005
Herbert Steinwender, Liebmannweg, AT;
Herbert Steinwender, Liebmannweg, AT;
Magna Drivetrain AG & Co KG, Lannach, AT;
Abstract
Disclosed is a magnetorheological clutch comprising a stationary part (), a rotating primary part () with primary lamellae (), and a coaxially rotating secondary part () with secondary lamellae (). An adjustable magnetic field acts upon the magnetorheological fluid. In order to be able to transmit the greatest possible torque in a minimum of space and at minimal power consumption, at least one magnet coil () encompassing a first yoke () is disposed such that primary lamellae (') and secondary lamellae (′) are located on both sides thereof. The lamellae are made of a material which is provided with moderate magnetic permeability and allows limited short-circuit flux. A second yoke (′) having a face (′) that extends parallel to the lamellae adjoins the outermost lamella on both sides, 'outermost' being in relation to the axial direction.