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:
Mar. 02, 2010
Filed:
Sep. 23, 2008
Peter Hubl, Clarkston, MI (US);
Henry W Harper, Milford, MI (US);
Peter Hubl, Clarkston, MI (US);
Henry W Harper, Milford, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A fuel injection priming system includes a fuel supply line connected to a fuel supply rail. A plurality of piezoelectric fuel injectors are connected to the fuel supply rail. An injector return fuel line is connected to the fuel injectors and in communication with a fuel supply line via a diverter device to allow high pressure fuel from the fuel supply line to pressurize the injector return fuel line to backfill the injectors during a priming operation. A one-way valve is in communication with the diverter device to manage the pressurized fuel provided to the plurality of fuel injectors during the priming operation and to allow fuel to pass to the fuel tank during normal operation.