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:
Jul. 20, 2004
Filed:
Nov. 29, 2002
Takekazu Ito, Toyota, JP;
Hiroki Matsuoka, Toyota, JP;
Tatsumasa Sugiyama, Anjyo, JP;
Yasuhiro Ohtsubo, Toyota, JP;
Taro Aoyama, Susono, JP;
Jun Tahara, Toyota, JP;
Mamoru Oki, Chiryuu, JP;
Masakuni Yokoyama, Toyota, JP;
Hideyuki Kusatugu, Anjou, JP;
Keiichi Mizuguchi, Kariya, JP;
Other;
Abstract
An internal combustion is capable of switching, during engine operation, between a low-temperature combustion state in which an intake air with a high EGR rate is burned to operate the engine, and a normal combustion state in which an intake air with a low EGR rate is burned to operate the engine. In the internal combustion engine, a pilot injection is executed in addition to a main fuel injection, and furthermore the execution of the pilot injection is restricted during the engine operation with a combustion state switched to the low-temperature combustion state.