PYRO SELECTOR Russian patent published in 1995 - IPC

FIELD: starting and cut-off devices of pneumohydraulic systems of rockets and space vehicles. SUBSTANCE: pyro selector has body with inlet passage and with main outlet passage and additional outlet passage, pyro chamber with pyro drive, shut-off member with rod and diaphragm member mounted on it. Chamber of additional passage is formed by corrugated diaphragm and diaphragm member. Diaphragm is engageable with stepped adjustable pusher resting against end of body by its spring tabs and against grate on side of pyro chamber. EFFECT: enhanced reliability of operation and reduction of impact loads in pyro selector. 1 dwg