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. 09, 2014
Filed:
Dec. 23, 2010
Keith Feldt, Wateford, MI (US);
Melissa Koenig, Howell, MI (US);
Christopher S. Vangorder, Ferndale, MI (US);
Alexander Moser, Ketsch, DE;
Keith Feldt, Wateford, MI (US);
Melissa Koenig, Howell, MI (US);
Christopher S. Vangorder, Ferndale, MI (US);
Alexander Moser, Ketsch, DE;
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
An automatic transmission having high pressure actuation and low pressure lube includes a hydraulic circuit () having a source of pressurized fluid (), an actuation circuit () that delivers pressurized fluid to actuate components of the transmission, and a cooling circuit () used to cool components of the transmission. The source of pressurized fluid includes a motor, a first pumpoperatively driven by the motor, and a second pumpselectively driven by motor. A clutch mechanismis connected between the motorand the second pumpso as to selectively engage and disengage the second pumpin driven relationship with the motorso that the second pumpselectively supplies pressurized fluid to the cooling circuitwhen the clutch mechanismis engaged.