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:
Mar. 30, 2004

Filed:

Nov. 01, 2002
Applicant:
Inventors:

Koichi Sugiyama, Nagoya, JP;

Masaru Nekita, Toyoake, JP;

Yoshinori Yamashita, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B 1/30 ;
U.S. Cl.
CPC ...
B05B 1/30 ;
Abstract

An injection device satisfies the following conditions: 5 mm≦La≦10 mm, 0 mm≦Lb≦1.0 mm, Lb≦Lc, and 0.5≦Ld/La ≦1.5, wherein La is a length of a coil, Lb is a distance between a downstream end surface of the coil and a downstream end surface of a non-magnetic portion, Lc is a distance between the end surface of the coil and a downstream end surface of a stationary core (or stationary portion), Ld is a length of the non-magnetic portion. The device also satisfies the following conditions: 0.2≦Sb/Sa≦0.9, and 0.1≦(Lf+Lc)/La≦1.0, wherein Sa is a cross-sectional area of a main portion, Sb is a cross-sectional area of a reduced size portion, Lf is a length of the reduced size portion.


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