BRAKE LINE END VALVE AND ITS SHUTOFF MEMBER Russian patent published in 2008 - IPC B60T17/04 B61H13/00 F16K31/52 

FIELD: transport.

SUBSTANCE: end valve incorporates a body with the valve open state closed state seats, manual drive and shutoff member, linked to the said manual drive and arranged in the body space to move lengthwise to tightly cover the said seats in turn. The shutoff member represents a cavity two-seat plate rigidly linked, on one side, to the push-rod and covered, on the other side, by an inner O-ring. The said two-seat plate is furnished, on the end valve open state seat side, with an outer O-ring with an elastic annular lug arranged along its outer diameter and, on the other side, is it closed by the inner C-section O-ring. The head surface abutting on the inner O-ring has a through groove communicating the body cavity with the two-seat plate space.

EFFECT: high-reliability of interaction of shutoff member elements between themselves and with those of the end valve in its opening/closing processes.

25 cl, 6 dwg