Variable angular compression seal assemblies for moveable aircraft components
Variable angular compression seal assemblies are disclosed that may usefully be employed to seal movable aircraft components, e.g., so as to seal a flap torque tube operating in a flap track cutout opening in a wing to fuselage fairing. The seal assembly may be provided so as to seal a component moveable between first and second positions within a cutout opening. The seal assembly includes a split seal having opposed seal members in non-compressive contact with one another along a split line between opposed ends of the seal members so as to allow the component to be moved along the split line between the first and second positions thereof. The seal members include opposed wall portions at one end thereof defining a recess for receiving the moveable component when in the first position thereof. The split line between the opposed seal members can be variably curved.
1. A seal assembly positionable in a cutout opening, the seal assembly comprising:
a component moveable within the cutout opening between first and second positions relative to opposed fore and aft ends of the cutout opening;
forward and rearward stationary seals positionable at the opposed fore and aft ends of the cutout opening;
a split seal extending between the opposed forward and rearward stationary seals, the split seal including opposed upper and lower seal members having forward and rearward ends, the upper and lower seal members having respective lower and upper walls which are in non-compressive contact with one another along a split line between the opposed forward and rearward ends of the seal members so as to allow the component to be moved along the split line between the first and second positions thereof, and
a guide support structure carried by the component, the guide support structure including opposed forward-facing and aft-facing tapered U-shaped surfaces configured to receive therein the lower and upper walls of the upper and lower seal members, respectively, wherein
the upper and lower seal members include aft-wise opposed inclined wall portions at the forward end end thereof defining a V-shaped recess for receiving the aft-facing tapered U-shaped surface of the guide support structure carried by the moveable component when in the first position thereof.
2. The seal assembly according to claim 1 , wherein the split line between the lower and upper walls of the opposed upper and lower seal members, respectively, is variably curved.
3. The seal assembly according to claim 1 , wherein each of the upper and lower seal members is an integral elastomeric structure having a hollow rectangular cross-sectional configuration.
4. The seal assembly according to claim 3 , wherein each of the upper and lower seal members comprises opposed upper and lower walls integrally joined to opposed interior and exterior walls, and opposed end walls.
5. The seal assembly according to claim 4 , wherein each of the upper and lower seal members comprises a series of internal walls extending integrally between the opposed interior and exterior walls.
6. An aircraft comprising:
a fairing having cutout opening defining fore and aft ends;
a wing flap which includes a torque tube moveably operable within the cutout opening between forward and aft positions relative to the fore and aft ends of the cutout opening so as to move the wing flap of the aircraft between retracted and deployed positions, respectively; and
a seal assembly sealably closing the cutout opening of the fairing, wherein the seal assembly comprises:
(i) forward and rearward stationary seals positioned at the opposed fore and aft ends of the cutout opening,
(i) a split seal extending between the opposed forward and rearward stationary seals, the split seal including opposed upper and lower seal members having forward and rearward ends, the upper and lower seal members having respective lower and upper walls which are in non-compressive contact with one another along a split line between the opposed forward and rearward ends of the seal members so as to allow the component to be moved along the split line between the first and second positions thereof, and
(iii) a guide support structure carried by the torque tube, the guide support structure including opposed forward-facing and aft-facing tapered U-shaped surfaces configured to receive therein the lower and upper walls of the upper and lower seal members, respectively, wherein
(iv) the upper and lower seal members include aft-wise opposed inclined wall portions at the forward end thereof defining a V-shaped recess for receiving the aft-facing tapered U-shaped surface of the guide support structure carried by the torque tube when in the first position thereof.
7. The aircraft according to claim 6 , wherein the split line between the lower and upper walls of the opposed upper and lower seal members, respectively, is variably curved.
8. The aircraft according to claim 6 , wherein each of the upper and lower seal members is an integral elastomeric structure having a hollow rectangular cross-sectional configuration.
9. The aircraft according to claim 8 , wherein each of the upper and lower seal members comprises opposed upper and lower walls integrally joined to opposed interior and exterior walls, and opposed end walls.
10. The aircraft according to claim 9 , wherein each of the upper and lower seal members comprises a series of internal walls extending integrally between the opposed interior and exterior walls.