CYLINDER OF CANOPY CONTROL Russian patent published in 2013 - IPC F15B15/19 B64C1/14 B64C1/32 

FIELD: machine building.

SUBSTANCE: canopy control cylinder comprises a cylindrical body hingedly fixed with a hull, and a sliding hollow stem installed inside the hull and hingedly connected with the movable part of the canopy. The cylinder is equipped with a mechanism of stem uncoupling with emergency drop of the canopy and a pusher with a piston placed in the stem cavity. The uncoupling mechanism comprises coaxially installed a rod, a collet element, the first and second springs, a case and an eye. The pusher is installed as capable of contact with the rod. The first spring rests against the ledge of the pusher and a guide part of the collect element, tabs of which enter inside the ledge. Ledges of the tabs are placed in the case bore installed in the stem cavity. The expanded part of the rod is pressed to the tabs by the second spring placed between the expanded part of the rod and the ledge on the inner surface of the case. The rod stretches via the second spring beyond the ledge on the inner surface of the case and has a thread at the end, onto which a nut is screwed. The case is connected with an eye by a hole for connection with the movable part of the canopy.

EFFECT: elimination of powder gases breakthrough into the area of armchair flight in case of emergency drop of a canopy.

8 cl, 7 dwg