| 摘要 |
PROBLEM TO BE SOLVED: To prevent deviation of groove width dimension of a sealing groove caused by shrinkage at the molding of a coating layer made of a synthetic resin, and strengthen the latching force with respect to the fuel inlet tube of a fuel filter, in an electromagnetic fuel injection valve. SOLUTION: A fuel inlet tube 26 of a valve housing 2 is constituted by a large-diameter portion 26a coupled to a stationary core 5, and a small-diameter portion 26b continuing to the large diameter portion 26a via an annular shoulder portion 26c, facing backward. A rear-end portion 32a of a covering layer 32, formed on an outer periphery of a valve housing 2 so as to embed and seal a coil 30, is formed so that it is brought into intimate contact with a portion from the annular shoulder portion 26c to the small-diameter portion 26b. A small flange 40, protruding to the outer peripheral side, is formed at the small-diameter portion 26b, and an annular latching protrusion 49 that elastically engages with a front end surface 40a of the small flange 40 is formed on a mounting flange 47 of a fuel filter 43; and a sealing groove 50 for attaching an O-ring 51 is defined by the rear end portion 32a and the mounting flange 47, and the outer peripheral surface of the small diameter portion 26b exposed therebetween. COPYRIGHT: (C)2011,JPO&INPIT
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