AIR CONTROLLED FILLING VALVE Russian patent published in 2024 - IPC B64D37/16 B60S5/02 

FIELD: rocket and space equipment.

SUBSTANCE: pneumatically controlled filling valve contains a seat (4), a plate (5) with a seal (6), a spring (7), and a pneumatic actuator. The cylinder (8) and rod (10) are made stationary, and the piston is made in the form of a movable glass (9), inside of which the rod (10) is located. The bottom (11) of the piston is connected to the valve plate (5). A cylindrical protective screen (15) is installed above the bellows (14), secured to the side surface of the piston bottom (11). In the annular cylindrical cavity between the inner wall of the piston cup (9) and the rod (10) there is an additional return spring (16) of the plate (5), one end of which rests on the flange (17), and the other on the ring support (18) installed between the rod (10) and the piston cup (9) with guaranteed diametrical clearances.

EFFECT: increasing reliability.

2 cl, 1 dwg