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:
Feb. 08, 1977
Filed:
May. 20, 1974
Applicant:
Inventor:
Toshiaki Konomi, Susono, JA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123 / ; 60276 ;
Abstract
A misfire detection system for an internal combustion engine is arranged to generate a first signal indicative of the oxygen concentration in the exhaust gas. Such first signal, whose instantaneous value is normally employed to adjust the engine fuel supply to control its air-to-fuel ratio, is additionally employed to interrupt the supply of fuel and secondary air to the engine when the first signal remains above a prescribed level after the elapse of a prescribed duration of the fuel supply adjustment.