Fire seal assembly for nacelle doors
A seal assembly may comprise a door configured to translate relative to a static structure. A seal may be disposed in a seal envelope defined, at least, partially by the static structure and the door. The seal may be configured to compress in a direction generally perpendicular to a direction of motion of the door.
1. A seal assembly, comprising:
a static structure including a seal interface section, a radially outward extending protrusion, and a connecting section extending between the radially outward extending protrusion and the seal interface section;
a door configured to translate relative to the static structure;
a seal disposed in a seal envelope defined, at least, partially by the door and the static structure, the seal comprising a compressible material, wherein the seal is configured to form a first sealing interface with a surface of the seal interface section of the static structure; and
a seal retainer extending radially inward from an interior surface of the door, wherein the compressible material of the seal forms a second sealing interface with the seal retainer.
2. The seal assembly of claim 1 , wherein the surface of the seal interface section of the static structure is parallel to a direction of motion of the door.
3. The seal assembly of claim 1 , wherein the surface of the seal interface section of the static structure is oriented at an angle of less than 90° relative to a direction of motion of the door.
4. The seal assembly of claim 1 , wherein a radially inward end of the seal retainer is located radially inward of a radially outward end of the radially outward extending protrusion of the static structure when the door is in a closed position.
5. The seal assembly of claim 1 , wherein the compressible material of the seal is spaced apart from the connecting section of the static structure when the door is in a closed position.
6. A nacelle, comprising:
an inlet;
a fan cowl aft of the inlet;
a thrust reverser aft of the fan cowl;
a door configured to cover an opening defined by an exterior surface of at least one of the inlet, the fan cowl, or the thrust reverser, wherein the exterior surface is oriented away from a central longitudinal axis of the nacelle;
a static structure coupled to the at least one of the inlet, the fan cowl, or the thrust reverser, the static structure including a door interface section and a seal interface section extending radially inward from the door interface section, wherein the door is configured to translate relative to the static structure and in a radial direction; and
a seal disposed in a seal envelope defined, at least, partially by the static structure and the door, the seal comprising a compressible material, wherein the compressible material of the seal is configured to form a sealing interface with at least one of a surface of the seal interface section of the static structure or a surface of a radially inward extending wall of the door.
7. The nacelle of claim 6 , wherein the seal is coupled to the door.
8. The nacelle of claim 6 , wherein the seal is coupled to the seal interface section of the static structure.
9. The nacelle of claim 6 , wherein the static structure further comprises a connecting section located radially inward of the seal when the door is in a closed position, and wherein the compressible material of the seal is spaced apart from the connecting section when the door is in the closed position.
10. The nacelle of claim 6 , wherein the surface of the seal interface section of the static structure is oriented at an angle of less than 90° relative to a plane perpendicular to an axis of rotation of the door.
11. The nacelle of claim 6 , wherein the surface of the radially inward extending wall of the door is oriented at an angle of less than 90° relative to a plane perpendicular to an axis of rotation of the door.
12. The nacelle of claim 6 , further comprising a seal retainer extending radially inward from an interior surface of the door, wherein the compressible material is configured to compress between the seal retainer and the seal interface section of the static structure in response to translation of the door to a closed position.
13. A seal assembly, comprising:
a static structure;
a door configured to translate relative to the static structure and in a vertical direction; and
a seal disposed in a seal envelope defined, at least, partially by the static structure and the door, wherein the seal is configured to compress between the static structure and the door, and wherein the seal compresses in a direction perpendicular to the vertical direction of motion of the door.
14. The seal assembly of claim 13 , wherein the seal is coupled to the static structure, and wherein the seal is configured to form a sealing interface with a surface of a radially inward extending wall of the door, and wherein the seal and the surface of the radially inward extending wall of the door are configured to form the sealing interface in response to translation of the door in a radially inward direction.
15. The seal assembly of claim 14 , wherein the surface of the radially inward extending wall of the door is parallel to the vertical direction of motion of the door.
16. The seal assembly of claim 14 , wherein the surface of the radially inward extending wall of the door is oriented at an angle of less than 90° relative to the vertical direction of motion of the door.