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:
Sep. 21, 2004
Filed:
Sep. 29, 2003
Applicant:
Inventor:
Robert Halsall, Washington, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/700 ; F02M 5/500 ;
U.S. Cl.
CPC ...
F02M 3/700 ; F02M 5/500 ;
Abstract
The present invention provides a fuel system that utilizes a first valve assembly and a second valve assembly within a fuel tank. Preferably, the first valve assembly is in parallel with the second valve assembly and provides a greater bias against fuel flow from the fuel tank assembly to the fuel rail. The second valve assembly allows fuel flow from the fuel tank assembly to the fuel rail and is biased with a lower bias than that for the first valve assembly. Additionally, the second valve assembly allows a lower fuel flow rate from the fuel tank assembly to the fuel rail than does the first valve assembly.