NOZZLE BLOCK Russian patent published in 2016 - IPC F16K17/40 F02K9/48 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to valve industry, specifically to normally closed valves, and can be used in machine building, for example in rocket engineering. Nozzle block consists of cases tightly interconnected by common inlet branch pipe by welding. Gates are installed in housings. Seats with flexible rings are installed in grooves of housings with tension. Sealing rings are pressed with slit springs.

EFFECT: reduction of generator gas leakage through sealing rings and seat with flexible shell ring and leakage of control helium through sealing rings, which enable to reduce weight of liquid propellant engine.

4 cl, 1 dwg