PYROTECHNIC VALVE UNIT Russian patent published in 1996 - IPC

FIELD: valve. SUBSTANCE: unit has housing with inlet and outlet openings. The rod of the switching mechanism is mounted inside the housing space. The rod is provided with a shear diaphragm that separates the space of the housing into insulated spaces. The switching mechanism is mounted for permitting interconnection of the spaces after actuating the pyrotechnic drive. The pyrotechnic drive is set inside the housing. Normally opened check valves are received in the inlet openings. The valves are provided with a locators that holds the plates in the open position. The locators are coupled with the rod and mounted for permitting loosening the plates after actuating the pyrotechnic drives. EFFECT: enhanced reliability. 11 cl, 2 dwg