| 摘要 |
A pyrovalve has a body with inlet and outlet cavities, adapter installed in the inlet cavity of the body and connected to its detachable part by means of plane of weakness, and pyrotechnical drive that consists of rod and pyro-cartridge, at that it is equipped with spring-supported con-rod installed normally with respect to axis of the rod and surrounding it, in the detachable part of the adapter at side of outlet cavity two concentric bosses are provided, the outer one of those is connected to the body by means of silphon and forms hermetic chamber with it, and in the inner one shutoff body is placed with weakened cross-section and channels are provided, those connect the inlet cavity to cavity of sealed chamber, at that the rod is made of three parts, its lower part rests on shutoff body and is equipped with channel connecting hermetic chamber to atmosphere at destruction of plane of weakness of the shutoff body, and length of the middle part exceeds stroke of detachable part of the adapter. |
