VALVE Russian patent published in 2025 - IPC F16K15/02 F16K15/12 F16K17/164 

FIELD: vehicles; valves.

SUBSTANCE: invention relates to automation units actuated by working medium without supply of extraneous commands and used in aviation industry. Valve contains a body with a seat, a shutoff member in the form of a disk with an axial cylindrical protrusion installed in the centre hole of a flat spring with annular slots and bridges forming petals, which is located in the guide hole of the body, and covers with inlet and outlet unions. In the seat there is a support grid, and a flat spring is fixed in the body against turning by a pin, and a centre hole of the spring, converted into one threaded turn by a radial slot along the bridge axis, into which a threaded nozzle is screwed, which is installed on a cylindrical projection of a disc made of non-metal.

EFFECT: invention is aimed at creation of a valve with a flat spring, having minimum weight characteristics and operating in the range of cryogenic temperatures with provision of stable tightness, as well as minimum cycle of setting the value of opening pressure during manufacture and when assembled.

1 cl, 2 dwg