Fuel injection valve having stationary core and movable core

Details Fuel injection valve having stationary core and movable core Fuel injection valve having stationary core and movable core

2004-12-22

2008-03-18

Barrera, Ramon M. (Department: 2832)

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

C239S585400

Reexamination Certificate

active

07344093

ABSTRACT:
A tubular member is arranged radially inward of a coil to cover outer peripheral parts of a movable core and of a stationary core. The stationary core has a tapered portion in an opposing portion, which is opposed to the movable core. The stationary core also has a large diameter portion on a counter movable core side of the tapered portion. An outer diameter of the tapered portion is increased from an opposing end surface side part toward the large diameter portion. The outer diameter of the opposing end surface of the opposing portion, which is opposed to the movable core, is generally the same as an outer diameter of the movable core. An outer diameter of the large diameter portion of the stationary-core is larger than the outer diameter of the movable core.

REFERENCES:
patent: 4915350 (1990-04-01), Babitska et al.
patent: 6012655 (2000-01-01), Maier
patent: 6364220 (2002-04-01), Willke et al.
patent: 2003/0127544 (2003-07-01), Demere et al.
patent: 2004/0169095 (2004-09-01), Cristiani et al.
patent: 60-256550 (1985-12-01), None
patent: B2-6-56139 (1994-07-01), None
patent: 2002-206468 (2002-07-01), None
Chinese Official Action issued in counterpart Chinese Application No. 2004101036914 dated Jan. 19, 2007; with English translation.

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