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:
Mar. 28, 1995
Filed:
Aug. 16, 1993
Applicant:
Inventor:
Takashi Aramaki, Kawasaki, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60274 ; 60276 ; 60277 ; 60289 ; 60290 ;
Abstract
In case of trouble of a secondary air supply system, supply of an additional amount of fuel to an intake system and supply of secondary air to an exhaust system at the time of a particular engine operating condition such as an idling condition are stopped for regulating an air-fuel ratio closer to a stoichiometric value.