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. 10, 1992
Filed:
Mar. 11, 1991
Roger W Gettel, Bloomfield Hills, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
The flow control system includes a flow control valve, an orifice located between the pump outlet port, a passage carrying feedback pressure at a location downstream from the orifice to one side of the valve, and a bypass port located between the pump outlet and the pump inlet. The bypass port opens as a valve spool moves due to differential pressure across the orifice. When pump discharge is low, the valve closes the bypass port; when pump flow rate increases, the valve opens the bypass port. The jet pump effect of a bypass diffuser, located between the bypass port and the pump inlet, supercharges low pressure fluid in a remote reservoir by using kinetic energy in the bypass flow to draw fluid from the reservoir into the pump and to raise static pressure at the pump inlet. A clip having a relatively large wetted surface area in comparison to its cross sectional area is located in a passage connecting the pump outlet and the load.