Slidable high-temperature seal

Details Slidable high-temperature seal Slidable high-temperature seal

1988-06-15

1990-01-23

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277206R, 244 52, 403288, F16J 1500, F16J 1534, B64B 136, B64C 1500

Patent

active

048953784

ABSTRACT:
A seal for preventing extremely hot gases from passing between a movable engine ramp and an engine splitter wall in a hypersonic aircraft. The seal moves with the engine ramp, in a direction parallel to the surface of the splitter wall. The seal includes a first flange which makes sliding contact with the outer engine ramp surface and is attached to a flexible sealing portion that fills the gap between the ramp and wall. The sealing portion maintains sliding contact with the wall as the gap changes dimension due to variations in the ramp's temperature. The attachment region can be a concave surface to radiate the seal's heat. In a second embodiment, the seal includes a second flange through which the seal is attached to the cooler side of the engine ramp.

REFERENCES:
patent: 3354649 (1967-11-01), Madden
patent: 3892358 (1975-07-01), Gisslen
patent: 4013226 (1977-03-01), Willard
patent: 4110972 (1978-09-01), Young et al.
patent: 4206893 (1980-06-01), Howard
patent: 4212472 (1980-07-01), Mizuno et al.
patent: 4221390 (1980-09-01), Bainbridge
patent: 4575006 (1986-03-01), Madden
patent: 4575099 (1986-03-01), Nash
patent: 4783085 (1988-11-01), Wicks et al.

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