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:
Jul. 29, 2004
Hitoshi Ishii, Yokosuka, JP;
Masahiko Yuya, Yokohama, JP;
Tsutomu Kikuchi, Tokyo, JP;
Yuichi Iriya, Yokohama, JP;
Mitsuhiro Akagi, Yokohama, JP;
Masahiro Fukuzumi, Machida, JP;
Katsuaki Uchiyama, Yokohama, JP;
Takao Maitani, Isehara, JP;
Masayuki Tomita, Yokohama, JP;
Yoshinao Ugomori, West Bloomfield, MI (US);
Hitoshi Ishii, Yokosuka, JP;
Masahiko Yuya, Yokohama, JP;
Tsutomu Kikuchi, Tokyo, JP;
Yuichi Iriya, Yokohama, JP;
Mitsuhiro Akagi, Yokohama, JP;
Masahiro Fukuzumi, Machida, JP;
Katsuaki Uchiyama, Yokohama, JP;
Takao Maitani, Isehara, JP;
Masayuki Tomita, Yokohama, JP;
Yoshinao Ugomori, West Bloomfield, MI (US);
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A four-stroke cycle in-cylinder fuel injection internal combustion engine () comprises a fuel injector () which injects fuel directly into a combustion chamber (), performs stratified charge combustion by means of compression stroke fuel injection, and performs homogeneous combustion by means of intake stroke fuel injection. Upon start-up of the engine (), intake stroke fuel injection is performed at the first combustion opportunity, and compression stroke fuel injection is switched to from the second combustion opportunity onward. In so doing, switching of the combustion system is performed early and independently of the engine rotation speed.