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. 17, 1984
Filed:
Aug. 03, 1981
Applicant:
Inventors:
Assignee:
Nissan Motor Company, Limited, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
F02M / ; F02P / ;
U.S. Cl.
CPC ...
60274 ; 60278 ; 123310 ; 123568 ; 123638 ;
Abstract
A spark-ignition internal combustion engine with multiple plugs is operated at an air-fuel ratio around the stoichometric under a high EGR rate higher than EGR limits for stable operation in a single spark plug ignition engine.