Device for sealing off fuselage gap of aircraft

Details Device for sealing off fuselage gap of aircraft Device for sealing off fuselage gap of aircraft

1975-07-17

1976-10-26

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

B64C 114

Patent

active

039879852

ABSTRACT:
A device for sealing the fuselage gap in a variable geometry aircraft. The fuselage gap is designed to receive part of the movable wing on the aircraft. The seal is in contact with the upper and lower wing surfaces near the inboard trailing edge section so that the fuselage gap is effectively sealed during flight. The seal is constructed of an air bellows with a triangular-shaped cross section and a plurality of partition walls therein, each partition wall being filled with air passageways in order to allow equilization of air pressure within the bellows. The partition walls are connected to one of the outer sheath walls of the bellows through a hinge-like connection. The hinge consists of numerous loops with a hinge pin protruding through the loops to interlock the concerned outer wall of the bellows with the partition walls. In another embodiment, a one-piece, elastic wire is threaded through the loops of all partition walls consecutively. The partition walls may be connected to the outer bellows sheath also through a force-locking device.

REFERENCES:
patent: 3324991 (1967-06-01), Voss
patent: 3480237 (1969-11-01), Appleby

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