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:
Apr. 22, 2014
Filed:
May. 04, 2011
Michael Partridge, Brighton, MI (US);
Robert A. Muchmore, Dexter, MI (US);
Paul A. Piorkowski, Belleville, MI (US);
Michael S. Powell, Holt, MI (US);
Michael Partridge, Brighton, MI (US);
Robert A. Muchmore, Dexter, MI (US);
Paul A. Piorkowski, Belleville, MI (US);
Michael S. Powell, Holt, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A selectable mass flywheel assembly for a powertrain of a motor vehicle includes a first mass and a second mass. The first mass is connected to a crankshaft of an engine and the second mass engages with a clutch to transfer torque from the engine to a transmission. The two masses are rotationally coupled to each other with a spring and damper assembly. The flywheel assembly further includes a locking mechanism that engages both masses during the startup of the engine to lock the two masses together to minimize the vibrations and pulsations in the powertrain during startup of the engine.