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:
Jul. 22, 1980
Filed:
Aug. 08, 1978
Applicant:
Inventors:
Hidehiro Minami, Yokohama, JP;
Teruo Aoki, Hachiohji, JP;
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123440 ;
Abstract
The emission level of NOx of a spark-ignition internal combustion engine is lowered by recirculating a relatively large amount of exhaust gases into the combustion chambers of the engine, whereas the emission levels of CO and HC are lowered by controlling the air-fuel ratio of the air-fuel mixture supplied into the combustion chambers at a desired value utilizing feedback techniques in accordance with the composition of the exhaust gases discharged from the combustion chambers.