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:
Jan. 02, 1979
Filed:
May. 09, 1977
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ; F02M / ;
U.S. Cl.
CPC ...
123 / ; 1231 / ; 60276 ; 60285 ;
Abstract
An exhaust gas sensor is provided to generate a signal representing the air-fuel ratio within the exhaust system. The deviation of the air-fuel ratio from the average value of the sensor output is detected by a comparator. The time integral value is momentarily offset when the sensor reaches its operating temperature range so that the output from the comparator takes a definite value for quickly starting closed control operation.