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:
Nov. 20, 1979
Filed:
Dec. 23, 1976
Applicant:
Inventor:
Makoto Anzai, Yokosuka, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ;
Abstract
A closed loop air-fuel ratio control system for an internal combustion engine is adapted to produce a control signal to be supplied to an air-fuel ratio regulator for regulating the air-fuel ratio of the air-fuel mixture to be supplied to the engine. The control signal is varied in amplitude in dependence on a concentration of a component in the exhaust gases upstream of a converter or reactor in the exhaust system. The control signal is composed of an integral component and a proportional component, the magnitude of the proportional component being dependent on that of the integral component.