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. 18, 2018
Filed:
Aug. 12, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
John C Schultz, Saline, MI (US);
Robert L Moses, Ann Arbor, MI (US);
Derek F Lahr, Howell, MI (US);
Shushan Bai, Ann Arbor, MI (US);
Other;
Abstract
A dual pressure pump system for a transmission includes a dual pressure pump having a first pump outlet and a second pump outlet, and a pressure regulator valve defining a first chamber in fluid communication with the first pump outlet and a second chamber in fluid communication with the second pump outlet. The pressure regulator valve is configured to selectively connect the first chamber with a first pressure line operating at a first greater-than-zero pressure and to selectively connect the second chamber to a second pressure line operating at a second greater-than-zero pressure.