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:
May. 23, 2006
Filed:
Sep. 17, 2004
Hajime Yasuda, Tokyo, JP;
Masaaki Ashida, Yokohama, JP;
Kouichi Mori, Kanagawa, JP;
Shunichi Mitsuishi, Kanagawa, JP;
Yoshinao Ugomori, West Bloomfield, MI (US);
Hajime Yasuda, Tokyo, JP;
Masaaki Ashida, Yokohama, JP;
Kouichi Mori, Kanagawa, JP;
Shunichi Mitsuishi, Kanagawa, JP;
Yoshinao Ugomori, West Bloomfield, MI (US);
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A fuel property determination system for an internal combustion engine is arranged to determine a fuel property indicative that fuel in use is heavy or light, on the basis of a degree of change of a revolution speed during a period from an expansion stroke of a first fuel injection cylinder at engine start to an expansion stroke of a final fuel injection cylinder in a first round as to all cylinders of the engine.