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. 14, 2014
Filed:
Nov. 17, 2009
Akihiro Yamaguchi, Wako, JP;
Yoshimasa Kaneko, Wako, JP;
Yukihisa Yamaya, Wako, JP;
Yutaka Tajima, Wako, JP;
Kenichiro Ikeya, Wako, JP;
Goichi Katayama, Wako, JP;
Nobuhiko Sasaki, Wako, JP;
Hiroshi Sono, Wako, JP;
Akihiro Yamaguchi, Wako, JP;
Yoshimasa Kaneko, Wako, JP;
Yukihisa Yamaya, Wako, JP;
Yutaka Tajima, Wako, JP;
Kenichiro Ikeya, Wako, JP;
Goichi Katayama, Wako, JP;
Nobuhiko Sasaki, Wako, JP;
Hiroshi Sono, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A direct fuel-injection engine includes a piston, a cavity recessed in a central part of a top face of the piston, and a fuel injector. At a main injection collision point of a fuel-injection axis when main injection is performed while the piston is near top dead center, a main injection collision angle formed between its tangent and the fuel-injection axis is set at an obtuse angle. Fuel colliding with the main injection collision point is deflected towards a cavity open end side. At a secondary injection collision point of the fuel-injection axis when performing secondary injection with the piston is further from top dead center, a secondary injection collision angle formed between its tangent and the fuel-injection axis is set at one of a right angle and an acute angle. Fuel colliding with the secondary injection collision point is deflected primarily in the circumferential direction of the cavity.