| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas fuel supplying apparatus for safely stopping gas fuel equipment even after pressure in a decompressor becomes abnormal shutting itself off, and for easily restarting the gas fuel equipment when the function of the decompressor is restored. SOLUTION: The gas fuel supplying apparatus 100 for supplying a high-pressure gas fuel to an internal combustion engine or gas fuel equipment 7 such as a fuel cell via the decompressor 3 comprises: a pressure sensor 6 at a decompression chamber side 3a in the decompressor 3; cutoff valves 2, 4 at the upstream and downstream sides of the decompressor 3. When pressure at the decompression chamber side 3a in the decompressor 3 becomes a specific pressure or more, the two cutoff vales 2, 4 are simultaneously broken, the cutoff valve 4 at the downstream of the decompressor 3 is opened first when the gas fuel equipment 7 is restarted, and the cutoff valve 2 at the upstream of the decompressor 3 is opened later when the pressure in the decompression chamber side 3a is less than a prescribed pressure. COPYRIGHT: (C)2004,JPO
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