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:
Sep. 15, 1981
Filed:
Feb. 22, 1980
Applicant:
Inventor:
Giichi Shioyama, Yokosuka, JP;
Assignee:
Nissan Motor Company, Limited, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123571 ;
Abstract
A fuel injection time is calculated from a flow rate of intake air to an internal combustion engine. A rotational speed of the engine is sensed. A desired recirculation rate of exhaust gas is determined by a central processing unit from the fuel injection time and the rotational speed of the engine using memory which contains a two-dimensional look-up table, each lattice point in the table being defined by axes of fuel injection time and rotational speed of the engine, and each lattice-point containing the value of a desired recirculation rate of exhaust gas.