| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose fitting for filling hydrogen capable of simultaneously preventing leakage of gaseous hydrogen and ignition of gaseous hydrogen, and reducing the cost because a large emergency disengagement coupling need not be connected to a hose assembly. SOLUTION: In the hose fitting 4b for filling hydrogen, a distribution passage 8 of gaseous hydrogen W is formed in a nipple 5. One of the distribution passage 8 forms an inlet 5a of gaseous hydrogen W, and the other forms an outlet 5b of gaseous hydrogen W. An emergency shutoff valve 6 is built in the distribution passage 8, and urged in the normally open direction, i.e., to the outlet 5b side via an elastic member 7 such as a spring. In the emergency shutoff valve 6, a plate-like disk body 9a abutted in an airtight manner on a stepped part 10 formed on the outlet 5b side of the distribution passage 8 is formed on one end side of a valve element 6A. A piece-like truncated conical shape 9b abutted in an airtight manner on a valve seat 11 formed on the outlet 5a side of the distribution passage 8 is formed on the other end side. Distribution holes 12 are formed in the disk body 9a at the spacing of 90°in the circumferential direction. COPYRIGHT: (C)2009,JPO&INPIT
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