| 摘要 |
PURPOSE: A device for sensing a gas leakage from a pressure vessel of a vehicle is provided to safely protect the pressure vessel by preventing the corrosion of the pressure vessel and to sense cracks on the pressure vessel and even a case. CONSTITUTION: A device(10) for sensing a gas leakage from a pressure vessel of a vehicle comprises a case(11), a pressure container(12), a corrosion preventing gas, and a gas pressure sensor(10). The case includes a first case member(111) and a second case member(112). The second case member forms an internal space by being joined to the first case member. A pipeline capable of injecting and discharging gas to outside is formed on the pressure vessel. A body unit of the pressure vessel is joined to the inside the case. The corrosion preventing gas is injected to between the pressure vessel and the case. The gas pressure senor is joined to the case, thereby sensing changes in the pressure of the corrosion preventing gas.
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