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:
Feb. 17, 2009
Filed:
Oct. 25, 2005
Neil E. Robb, Jackson, MI (US);
Rick L. Boyer, Marshall, MI (US);
Gary E. Hart, Indianapolis, IN (US);
Neil E. Robb, Jackson, MI (US);
Rick L. Boyer, Marshall, MI (US);
Gary E. Hart, Indianapolis, IN (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A magnetorheological fan coupling () having a fan-drive subassembly (), an electromagnet subassembly (), and a magnetic medium (). The fan-drive subassembly () includes an output member () and an input member () rotatably mounted around the output member () with the magnetic medium () therebetween. The magnetic medium () has a shear stress that can be adjusted by a magnetic flux () for transferring torque between the input member () and the output member (). The electromagnet subassembly () includes a stationary electromagnet coil () for adjusting the shear stress of the magnetic medium () and regulating a torque transferred between the input member () and the output member ().