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:
Oct. 28, 1986
Filed:
Mar. 11, 1985
Applicant:
Inventor:
Ryuji Kataoka, Mitaka, JP;
Assignee:
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123440 ; 123489 ;
Abstract
An air-fuel control system for an automotive engine which keeps the engine idling speed at a predetermined value. In the system, engine idling state is determined by signals from an idle-switch, and a neutral switch provided in a transmission. When the number of peaks of the fluctuating feedback signal of a feedback control circuit exceeds a predetermined value, the feedback signal is fixed to a predetermined value, so that air-fuel ratio is fixed to a value, thereby keeping the idling speed to a constant value.