Fuel injection valve

Details Fuel injection valve Fuel injection valve

2007-04-10

2007-04-10

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

C239S533200, C239S533300, C239S533110, C239S533120, C239S585100, C239S585300, C239S585400, C239S585500

Reexamination Certificate

active

10961154

ABSTRACT:
A fuel injection valve has: a tubular body, a valve seat member, a valve body, a core tube, a bias spring, and an electromagnetic actuator. The core tube is press fitted into the tubular body. The core tube has a first end side opposing an absorption section of the valve body in such a manner as to form an axial gap interposed between the first end side of the core tube and the absorption section. The core tube has a second end side axially extending in the tubular body to a certain position on a way to the second end side of the tubular body. The axially extending second end side of the core tube has an outer periphery which is formed with a reduced diameter section for increasing an accuracy in positioning the core tube when the core tube is press fitted into the tubular body.

REFERENCES:
patent: 1664616 (1928-04-01), French
patent: 5330100 (1994-07-01), Malinowski
patent: 5544816 (1996-08-01), Nally et al.
patent: 5823445 (1998-10-01), Sofer
patent: 6405947 (2002-06-01), Fochtman
patent: 2000-8990 (2000-01-01), None

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