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. 20, 2021
Filed:
Jan. 22, 2019
GM Global Technology Operations Llc, Detroit, MI (US);
Mark R. Claywell, Birmingham, MI (US);
Sean M. McGowan, Northville, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A gear pump that is used to pump fluid, such as oil, in a vehicle. The gear pump comprises a gear assembly having a drive shaft including a drive shaft key; a set of drive gears mounted on the drive shaft, with a drive gear of the set of drive gears being keyed with the drive shaft key; a driven shaft including a driven shaft key; a set of driven gears mounted on the driven shaft, with a driven gear of the driven gear set being keyed with the driven shaft key; and a torque drive feature associated with the drive shaft or the driven shaft, wherein the torque drive feature is configured to check keying with the driven shaft key.