Safety valve for high-pressure tank

Abstract

A safety valve is capable of discharging a predetermined amount of gas from the beginning of activation. The safety valve includes a main body and an igniter. The main body includes a male screw portion that is a male threaded portion, an internal space in which the igniter is provided, a bore that communicates with a space of a tank body, an openable portion that is a bottom portion of the bore and that is opened when the igniter is ignited, and a discharge port that communicates with an external environment and discharges gas at the time of activation. A hole is formed by melting, cleavage, breakage, or the like when the igniter is ignited. The total opening area of the discharge port is preferably 0.008 to 5.5 mm2.

Dependencies are inferred from the claim text.