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:
Mar. 23, 1982
Filed:
Sep. 25, 1979
Applicant:
Inventors:
Shigetaka Takada, Ohbu, JP;
Yukihiro Watanabe, Nagoya, JP;
Assignee:
Aisan Industry Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
123440 ; 123489 ;
Abstract
An air-fuel ratio control device for controlling the air-fuel ratio of the mixture to be supplied to internal combustion engine, in which a control level can be made to shift instantaneously even if the engine running condition changes abruptly so that smooth and accurate control of the air-fuel ratio can be performed. Integrators in the control circuit are provided with limiters to place upper and lower limits on the integrated value so as to prevent hunting under the idling condition.