| 摘要 |
<p>This invention relates to safety valve (10) for gas storage cylinders and in particular a hydrogen storage tank, said valve (10) comprising a piston- like dispersing member (18) provided with at least one vent opening (22) formed therein, said dispersing member (18) being slidably mounted within a body (16) of the valve (10) to be moveable between a retracted position, wherein the at least one vent opening (22) is obscured by a portion of the valve body (16), and an extended position, wherein the dispersing member (18) projects from the body to expose said vent opening (22).</p> |
