| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel leak detecting device to accurately detect leakage of gas fuel. SOLUTION: A time of ignition OFF, and the pressure of gas fuel in a fuel feed route and the temperature of gas fuel in a fuel feed route at the time are stored (S10). A time of ignition ON, the pressure of gas fuel in the fuel feed rout and the temperature of gas fuel in the fuel feed route at the time are stored (S14). The pressure of gas fuel during ignition OFF is converted to a pressure when the temperature of gas fuel during ignition OFF is set to a specified temperature, and the pressure of gas fuel during ignition ON is converted (S16), to a pressure when the temperature of gas fuel during ignition ON is set to a specified value. It is decided (S18) that gas fuel leaks when a difference between a pressure converted during ignition OFF and a pressure value converted during ignition ON exceeds a specified allowance value.
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