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:
Jun. 27, 2006
Filed:
Apr. 19, 2004
Tomojiro Sugimoto, Susono, JP;
Keiso Takeda, Mishima, JP;
Shigeo Furuno, Fuji, JP;
Kimitaka Saito, Nagoya, JP;
Yasuhide Tani, Nagoya, JP;
Atsuya Okamoto, Okazaki, JP;
Takehiko Kato, Nukata-gun, JP;
Tatsushi Nakashima, Anjyo, JP;
Tomojiro Sugimoto, Susono, JP;
Keiso Takeda, Mishima, JP;
Shigeo Furuno, Fuji, JP;
Kimitaka Saito, Nagoya, JP;
Yasuhide Tani, Nagoya, JP;
Atsuya Okamoto, Okazaki, JP;
Takehiko Kato, Nukata-gun, JP;
Tatsushi Nakashima, Anjyo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
There is provided a fuel injection valve in which nozzle holes are formed on a metering plate and fuel flowing on a face of the metering plate on the upstream side is injected outside of a face of the metering plate on the downstream side through the nozzle holes. The fuel injection valve includes a vortex flow generator means for changing a flow of fuel passing in each nozzle hole into a vortex flow, wherein the vortex flow generator means is provided on the upstream side of the metering plate. The vortex flow means is a vortex flow generator groove provided on an upper face of the metering plate and connected with a wall face of an entrance of the nozzle hole, and a main stream of fuel flowing in the groove is directed to a position shifted from the center of the nozzle hole. Alternatively, the vortex flow means is a protrusion formed on an upper face of the metering plate. A flow of fuel is changed into a vortex flow in the nozzle hole and injected from the nozzle hole. Therefore, fuel can be excellently atomized and diffused as a megaphone-shape without being formed into a liquid column spray.