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:
Aug. 04, 2015
Filed:
Aug. 31, 2011
William L. Villaire, Clarkston, MI (US);
Ryan A. Buccafurri, Royal Oak, MI (US);
Peter N. C. Nguyen, Sterling Heights, MI (US);
Gordon G. Rinke, Sterling Heights, MI (US);
William L. Villaire, Clarkston, MI (US);
Ryan A. Buccafurri, Royal Oak, MI (US);
Peter N. C. Nguyen, Sterling Heights, MI (US);
Gordon G. Rinke, Sterling Heights, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS. LLC, Detroit, MI (US);
Abstract
Propulsion systems for vehicles are provided. The propulsion system includes an engine and a module. The module includes a fuel pump, a check valve, and a relief valve. The fuel pump is configured to supply fuel flow having a pressure. The check valve is configured to receive the fuel flow from the fuel pump, and to allow passage of the fuel flow to the engine. The relief valve is coupled to the fuel pump and configured to release a portion of the pressure of the fuel flow. The relief valve is disposed upstream of the check valve.