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. 16, 1994
Filed:
Feb. 23, 1993
Applicant:
Inventor:
Katsuhiko Toyoda, Shizuoka, JP;
Assignee:
Suzuki Motor Corporation, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60276 ; 123674 ; 60285 ;
Abstract
An air-fuel ratio control device for an internal combustion engine, in which a first exhaust sensor is disposed at an exhaust passage of an internal combustion engine on an upstream side of a catalytic member which is disposed at the exhaust passage, and a second exhaust sensor is disposed at the exhaust passage on a downstream side of the catalytic member, with the air-fuel ratio being feedback-controlled by a control system in accordance with detection signals from the front and rear exhaust sensors.