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:
Aug. 31, 2010

Filed:

Dec. 22, 2004
Applicants:

Norihisa Fukutomi, Tokyo, JP;

Mamoru Sumida, Tokyo, JP;

Inventors:

Norihisa Fukutomi, Tokyo, JP;

Mamoru Sumida, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 61/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A valve seathaving an injection holeis fixed at one end of a hollow valve main body, a valve bodyslidably supported so as to be separated from and brought into contact with the valve seatto open and close the injection holeand a swirlerfor surrounding the valve bodyto slidably support the valve bodyand for imparting a swirling motion to fuel flowing into the injection holeare equipped, a swirling groovein the swirlerincludes a curvature partin a groove outlet, and a sectional configuration of the swirling grooveis constituted so that the depth of the central part is larger than the depth of the end part.


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