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:
May. 03, 1988
Filed:
Aug. 22, 1986
Applicant:
Inventors:
Jerry W Kortge, Clarkston, MI (US);
Steven L Piedmont, Clarkston, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123520 ;
Abstract
A system and method of controlling the purge rate of a fuel vapor collection canister of an internal combustion engine in which the purge flow rate is variably controlled to a maximum rate that is established by the fuel control system based on its ability to maintain a desired air/fuel ratio.