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:
Jun. 08, 1999
Filed:
Jun. 19, 1997
Applicant:
Inventors:
Hideki Kobayashi, Hiroshima, JP;
Hideki Kusunoki, Ehime, JP;
Assignee:
Mazda Motor Corporation, Hiroshima, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123520 ; 123516 ;
Abstract
A fuel control system for feedback controlling a purge gas flow rate as well as an air-to-fuel ratio which learns the concentration of fuel of a purge gas based on an average of air-to-fuel ratio control values at adjacent reversal there of between an upward tendency and a downward tendency and determines the content of fuel of the purge gas based on the purge gas concentration by which the amount of fuel delivered by an injector is reduced.