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:
Jul. 26, 1988
Filed:
Dec. 04, 1986
Applicant:
Inventor:
Takuro Morozumi, Mitaka, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123489 ; 123440 ; 123589 ;
Abstract
An air-fuel ratio control system for an engine has a feedback control system operated in accordance with an output voltage of an O.sub.2 -sensor. When the output voltage becomes higher than a reference voltage, the operation of the feedback control system starts. The reference voltage is set to a high level when the engine is started, and set to a low level when a set time elapses after the starting of the engine.