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:
Aug. 30, 1988
Filed:
Dec. 17, 1987
Applicant:
Inventor:
Norio Shibata, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123440 ; 123489 ;
Abstract
In an internal combustion engine having a carburetor fuel system wherein an amount of air bleeding is mixed with the fuel by a feedback control for adjusting an air-fuel ratio, the amount of air bleeding is regulated within a range defined by a minimum guard value and a maximum guard value, the maximum guard value is adjusted to a smaller value than the maximum guard value, and the feedback control is not interrupted when the engine is cold, the engine is in an acceleration state, and the air fuel ratio is lean.