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:
Apr. 25, 2006
Filed:
Jun. 06, 2003
Takuya Shiraishi, Hitachinaka, JP;
Toshiharu Nogi, Hitachinaka, JP;
Minoru Ohsuga, Hitachinaka, JP;
Noboru Tokuyasu, Hitachi, JP;
Takuya Shiraishi, Hitachinaka, JP;
Toshiharu Nogi, Hitachinaka, JP;
Minoru Ohsuga, Hitachinaka, JP;
Noboru Tokuyasu, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a direction-injection engine incorporating a turbocharger, fuel combustion is improved to enhance fuel economy within the high-load range of engine torque, and furthermore to control occurrence of smoke in the range of great load within the lean-burn range. Scavenging acceleration control is conducted to scavenge the exhaust gases in the combustion chamber by using at least one of the intake pipe pressure, the combustion chamber pressure, and the exhaust pipe pressure, and the fuel is injected twice during the intake stroke and the compression stroke.