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:
Jan. 23, 2007
Filed:
Aug. 18, 2005
Yoko Nakayama, Hitachi, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Takuya Shiraishi, Hitachinaka, JP;
Yusuke Kihara, Hitachi, JP;
Kenji Tsuchita, Hitachiohta, JP;
Yoko Nakayama, Hitachi, JP;
Yoshihiro Sukegawa, Hitachi, JP;
Takuya Shiraishi, Hitachinaka, JP;
Yusuke Kihara, Hitachi, JP;
Kenji Tsuchita, Hitachiohta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A direct injection engine and a controller for the engine, which can realize super-retard combustion under high backpressure and can minimize an emission amount of HC at the startup. A cavity is formed in a piston such that fuel spray injected from a fuel injection valve is blown into the cavity. An obstacle member, such as a step, is provided in the cavity to decelerate or stop the fuel spray blown into the cavity. A mount position, mount posture, nozzle structure, injection port shape, etc. of the fuel injection valve are set such that the fuel spray injected from the fuel injection valve is made up of a lead fuel spray component directed toward the ignition plug and having a penetration to extend long beyond the ignition plug, and a main fuel spray component directed toward the piston, thereby enabling the super-retard combustion to be performed under high backpressure.