| 摘要 |
PROBLEM TO BE SOLVED: To enable connection having two functions of connection and sealing without using a specified seal member by interposing a soft material whose hardness is lower than that of both members of an injection nozzle as a non plastic fluid member and a case as a plastic fluid member and linear expansion coefficient is smaller than that, between the injection nozzle and the case. SOLUTION: In a vehicular fuel injection valve, a plunger 4 is guided to a sealing 14 when current-carrying of a coil 10 is carried out, is attracted to a core 3 side, a ball valve 5 is separated from a seat surface 7 of a nozzle 6, and fuel supplied at this time is injected from an orifice 19 into an internal combustion engine by applying turning effort by a swirler 13. In this case, a soft material is connected to the nozzle 6 by means of plating at a step of parts. The thickness of the soft material 20 is set to a size (about 100 to 200μm) for absorbing form accuracy such as a surface roughness and a roundness of the connecting member. Plastic fluid connecting work is carried out by the member, and thereby, a contact part of the nozzle 6 and the case 3 is completely filled while absorbing a clearance.
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