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. 27, 2005
Filed:
Jul. 02, 2001
Junichi Yamaguchi, Naka, JP;
Yoshiyuki Tanabe, Hitachinaka, JP;
Koji Onishi, Hitachinaka, JP;
Toshio Ishii, Mito, JP;
Hiroshi Fujii, Tokyo, JP;
Junichi Yamaguchi, Naka, JP;
Yoshiyuki Tanabe, Hitachinaka, JP;
Koji Onishi, Hitachinaka, JP;
Toshio Ishii, Mito, JP;
Hiroshi Fujii, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An internal combustion engine which injects fuel directly into a cylinderand ignites air-fuel mixture formed in the cylinder, wherein each fuel injection of said internal combustion engine comprises a lead spraywhich moves faster and a main spraywhich moves slower, the lead sprayis oriented towards an ignition plug, and the air-fuel mixture made by pre- and main sprays is ignited twice or more. This invention of the above configuration can provide a simple and inexpensive direct cylinder injection type internal combustion engine which reduces abrasion of electrodes and consumption of electric power while assuring stable fuel combustions even when ignition timing is retarded.