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:
Mar. 25, 2014
Filed:
Feb. 26, 2010
Kevin Michael Dougan, Plymouth, MI (US);
Fredrick R. Poskie, Plymouth, MI (US);
Edwin T. Grochowski, Howell, MI (US);
Bret M. Olson, Whitelake, MI (US);
James W. Haynes, Oxford, MI (US);
Kevin Michael Dougan, Plymouth, MI (US);
Fredrick R. Poskie, Plymouth, MI (US);
Edwin T. Grochowski, Howell, MI (US);
Bret M. Olson, Whitelake, MI (US);
James W. Haynes, Oxford, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for providing pressurized hydraulic fluid in a transmission of a motor vehicle includes a pump for providing pressurized hydraulic fluid having an inlet port and an outlet port. A bypass valve includes an inlet port in communication with the outlet port of the pump, a first outlet port in communication with the inlet port of the pump, and a second outlet port. The inlet port of the bypass valve is in communication with the second outlet port of the bypass valve when the bypass valve is in a first position and the inlet port of the bypass valve is in communication with the first outlet port of the bypass valve when the bypass valve is in a second position. A control device and accumulator are operatively associated with the bypass valve.