DAMPER VALVE Russian patent published in 2008 - IPC F16K3/02 

FIELD: engineering industry; pipe fitting area.

SUBSTANCE: damping valve includes frame with sockets and liquid ends for the operating environment. It also contains guiding surface and thrusts for the control gate connected with the driving spindle. It includes locking discs, thrust-drive key and moving catches. Catches fix by turns the relative position of the control gate elements with its out-in traverse and the control gate in the frame in close mode of the damping valve. Stock relative to the spindle is connected to it with the possibility of joint out-in traverse at the open/close damping valve operation. Catch is installed and fixed with its out-in traverse at the stock. Thrust-drive key is firmly connected with the stock and fitted with the elastic support in the direction of movement for the damper valve closing. While the out-in traverses of the damper valve the elastic support is fixed on the stock. The connections "stock-spindel" and/or "locking disc - thrust drive key" are swinging.

EFFECT: reliability improvement of the operation and operation long life of the locking disk with thrust drive key device by means of the catch elastic enhancement.

7 cl, 5 dwg