BRAKE LINE END VALVE Russian patent published in 2022 - IPC F16K31/52 B60T17/04 B61H13/00 

FIELD: railway transport.

SUBSTANCE: invention relates to the field of railway transport, in particular to the brake line end valves. The end valve of the brake line contains a body with a two-seat valve with a pusher located in it, interacting with a manual drive to ensure longitudinal movement in the body of the two-seat valve with alternate hermetic overlap of its seats. The double-seated valve is made in the form of a cavity plate, closed by an internal sealing ring with a C-shaped cross section, covering a rigid annular base. In this case, the outer side surface of the inner sealing ring is a surface of rotation with a generatrix in the form of a concave curve and has two working surfaces in contact with the inner surface of the plate to form a closed space between the outer side surface of the inner sealing ring and the inner surface of the plate filled with a lubricant composition.

EFFECT: increasing the reliability and increasing the overhaul life of the end valve by reducing the wear of its moving parts.

8 cl, 3 dwg