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. 09, 1993
Filed:
Jul. 14, 1992
Applicant:
Inventor:
Tze-Ning Chen, Sudbury, MA (US);
Assignee:
Gas Research Institute, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123697 ; 60276 ; 204408 ;
Abstract
A closed loop fuel control system for an internal combustion engine in which the temperature of the exhaust gases passing by the oxygen sensor are regulated. The system utilizes a heated oxygen sensor in a slipstream of the exhaust gas and the temperature of the exhaust gas is controlled prior to its passing by the heated oxygen sensor for maximum efficiency of the catalytic converter.