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. 21, 2004
Filed:
Apr. 15, 2003
Dale K. Bell, Ortonville, MI (US);
Dennis A. Kramer, Troy, MI (US);
Clive Harrup, Bromham, GB;
Mehmet S. Ciray, Glenwood, IN (US);
Silvio M. Yamada, Gahanna, OH (US);
Dean M. House, Pataskala, OH (US);
David K. Platner, Shelby, MI (US);
Dale J. Eschenburg, Clinton Township, MI (US);
ArvinMeritor Technology, LLC, Troy, MI (US);
Abstract
An electric motor assembly is provided that includes a housing. A rotor is arranged in the housing and is rotatable about an axis. A vehicle wheel is coupled to the rotor. The rotor has an annular profile defining sinusoidal teeth and is generally concentric with the axis. The angle and number of oblique surfaces of the teeth and the diameter of the rotor, in part, define the speed and torque of the rotor. A plurality of electric linear actuators are arranged circumferentially about and generally parallel to the axis. The actuator includes shafts having ends that engage the profile. The shafts are movable between extended and retracted positions to rotate the rotor in a desired direction. A sensor detecting the position of the rotor and a controller may be used to effect the desired rotation.