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. 13, 2003
Filed:
Oct. 19, 2001
Applicant:
Inventors:
Iwao Yoshida, Yokohama, JP;
Takao Maitani, Kanagawa, JP;
Assignee:
Nissan Motor Co., LTD, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 1/700 ;
U.S. Cl.
CPC ...
F02B 1/700 ;
Abstract
A spark ignited internal combustion engine employs fuel injectors positioned to inject fuel directly into combustion chambers of the engine, and an electronic engine controller (EEC) to control operation of the engine. The EEC implements a routine which controls the quantity of fuel injected, and spark timing by varying a period of time, which is required for advancing the spark timing during switch from a stratified stoichiometric charge combustion by split injection to a homogeneous charge combustion by single injection, with differing degrees of operator torque demand.