CHECK VALVE Russian patent published in 2023 - IPC F16K15/16 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering and can be used in power engineering, including rocket science. The non-return valve contains a body in which a seat is installed in the form of a hollow pyramid with outlet holes on the faces, with flat elastic plates adjacent to the faces, closing the holes and one side rigidly fixed at the base of the pyramid. Wherein the pyramid is made tetrahedral with holes only on two opposite faces, steps are symmetrically located on the tops of the other two faces, on which the brackets rest and for which the brackets are fixed, pressing the ends of the plates to the faces, with the possibility of their slipping when the valve is opened and closed, and to limit slippage protrusions are made at the ends of the plates to rest against the brackets.

EFFECT: invention is aimed at improving the reliability of the check plate valve and increasing the warranty period, since the introduction of clamping brackets into the design eliminates the presence and vibration of the free ends of the elastic plates in the flow of the working fluid with their subsequent destruction.

1 cl, 2 dwg