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:
Dec. 03, 2019
Filed:
May. 08, 2017
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventor:
Karl A Sime, Mason, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/00 (2006.01); H02K 9/19 (2006.01); B60K 1/00 (2006.01); H02K 7/00 (2006.01);
U.S. Cl.
CPC ...
H02K 9/19 (2013.01); B60K 1/00 (2013.01); H02K 7/006 (2013.01); B60K 2001/006 (2013.01);
Abstract
A vehicle propulsion system includes a rotor shaft defining a cavity within the rotor shaft and a radial hole extending from the cavity to an external surface of the rotor shaft, and a restrictor that reduces a flow of liquid through the radial hole in response to a rotational speed of the hollow rotor shaft exceeding a predetermined threshold rotational speed.