| 摘要 |
PROBLEM TO BE SOLVED: To improve sealing properties to gas fuel between a first fuel pipe element having stiffness, and a second fuel pipe element having flexibility and pressed and fitted in an outer peripheral surface of the first fuel pipe element. SOLUTION: On the outer peripheral surface of a joint portion (the first fuel pipe element) 2 in which a fuel tube (the first fuel pipe element) 3 having flexibility is pressed and fitted in, an annular recessed portion 22 is formed. Sealing material 4 having an an adhesive property to an inner surface dividing the recessed portion 22 and an inner peripheral surface of the fuel tube 3 is filled in the recessed portion 22. COPYRIGHT: (C)2005,JPO&NCIPI
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