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.

Date of Patent:
May. 15, 2007

Filed:

Jul. 05, 2006
Applicants:

Takeshi Mizobuchi, Obu, JP;

Kimitaka Saito, Nagoya, JP;

Norio Yamamoto, Kariya, JP;

Zhenzhou Su, Okazaki, JP;

Masatoshi Basaki, Nukata-gun, JP;

Masao Sawamura, Okazaki, JP;

Inventors:

Takeshi Mizobuchi, Obu, JP;

Kimitaka Saito, Nagoya, JP;

Norio Yamamoto, Kariya, JP;

Zhenzhou Su, Okazaki, JP;

Masatoshi Basaki, Nukata-gun, JP;

Masao Sawamura, Okazaki, JP;

Assignees:

Denso Corporation, Kariya, Aichi-pref, JP;

Nippon Soken, Inc., Nishio, Aichi-pref, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 61/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel injection valve for an engine includes a nozzle located in the vicinity of a cylinder head of the engine. The nozzle has nozzle holes each being opposed to an in-cylinder space defined in a cylinder of the engine. Each nozzle hole has an imaginary injection line that extends from each nozzle hole into the in-cylinder space. The imaginary injection line is directed toward either an upper surface of the piston or the wall surface of the cylinder. The in-cylinder space includes divided spaces each including the nozzle and at least one imaginary injection line. The divided spaces include a piston-side divided space and a head-side divided space. The head-side divided space contains fuel and air mixed at an air fuel ratio that is greater than an air fuel ratio of fuel and air in the piston-side divided space.


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