Safety device of high-pressure gas tank

Abstract

A safety device (10) for a high-pressure gas tank (3) that accommodates high-pressure gas, which is fuel for a vehicle (2), is provided with a safety valve (1) attached to the high-pressure gas tank (3), and a heat pipe (5) attached to the safety valve (1). The safety valve (1) discharges high-pressure gas from the inside of the high-pressure gas tank (3) to the outside as the temperature rises. The heat pipe (5) transfers heat by evaporation and condensation of a working fluid sealed therein and a capillary phenomenon of a wick provided on an inner wall.

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