| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent falling off of a falling-off preventing ring 51 itself preventing falling off of a shaft displacement absorption washer 17 when a fuel injection valve 1 is fitted into the fitting hole 3 of an engine 2. Ž<P>SOLUTION: The fuel injection valve 1 is pressurized with respect to the fitting hole 3, and pressurizing force is received by the shaft displacement absorption washer 17. The washer 17 is positioned in the inclined portion 12 of a large diameter portion, and a stage 25 having a washer receiving portion 26 exists between the large diameter hole portion 22 and intermediate diameter hole portion 21 of the fitting hole 3. The falling-off preventing ring 51 composed of a C-shaped ring is provided in a groove 50. The falling-off preventing ring 51 prevents falling off of the shaft displacement absorption washer 17 to the side of the engine 2. Dimensions D2, L1, and L3 are set such that when the falling-off preventing ring 51 itself falls off beyond a protuberance 53, the outermost diameter portion of the falling-off preventing ring 51 is prevented from falling off by being brought into contact with the inner peripheral wall of the fitting hole 3. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
