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:
Nov. 20, 2018
Filed:
Jul. 12, 2016
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
James Thomas Gooden, Canton, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01M 5/00 (2006.01); F16H 57/04 (2010.01); F01P 7/16 (2006.01); G05D 23/02 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0435 (2013.01); F01M 5/002 (2013.01); F01M 5/007 (2013.01); F01P 7/16 (2013.01); F16H 57/04 (2013.01); F16H 57/0417 (2013.01); G05D 23/022 (2013.01);
Abstract
A thermostatic bypass valve has an intentional flow resistance through a bypass passageway when fluid is at a normal operating temperature. This flow resistance, of between 10 and 20 psi at a flow rate of 10 liters per minute, is achieved by limiting a radial clearance within the bypass passageway to less than 1.0 mm. The flow rate through the bypass passageway is at least half of the flow resistance of the cooler. This bypass flow resistance is beneficial because it limits the flow rate of lubrication fluid during bypass, reducing the parasitic losses of the gearbox.