System and apparatus for aerodynamically sealing surfaces

Patent metadata

Field	Value
Publication number	US-9945483-B2
Application number	US-201414269578-A
Country	US
Kind code	B2
Filing date	May 5, 2014
Priority date	May 5, 2014
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A system includes a first surface, a second surface, and a sealing system operable to provide an aerodynamic seal between the first surface and the second surface. The second surface may be a surface to be sealed. The sealing system includes a first member and a base. The first member includes a first portion and a bulb coupled to the first portion. The first portion has one or more projections and is adapted to couple the first member to the first surface. The base includes a plurality of feet, a plurality of arms, and an arched portion. The plurality of feet are adapted to be positioned against the second surface. The plurality of arms are adapted to accept the bulb. The arched portion forms a preloaded seal adapted to seal against the second surface when air pressure is exerted against a side of the base.

First claim

What is claimed is:

1. An apparatus, comprising:
a first member comprising:
a clevis comprising two parallel projections configured to couple to a first surface by accepting the first surface in the clevis in an area between the two projections, wherein each of the two parallel projections comprises a substantially constant thickness throughout a length of each of the two parallel projections;
a compressible bulb coupled to the clevis and configured to accommodate up and down deflections of the first surface relative to a second surface by compressing, wherein:
an end of each of the two parallel projections is coupled to the bulb; and
the bulb comprises a shape forming a hollow closed circle; and

a deformable base formed from a material that changes shape when air pressure is exerted against a side of the base, the base comprising:
a pair of feet configured to be positioned against the second surface, the second surface comprising a surface to be sealed;
an arched portion located between the feet, wherein a tip of a convex portion of the arched portion is located at a midpoint between the pair of feet;
a preloaded seal formed by the arrangement of the pair of feet and the arched portion, the preloaded seal configured to seal against the second surface when air pressure is exerted against the side of the base; and
a plurality of arms configured to accept the bulb, the plurality of arms comprising a shape that is complementary to a shape of the bulb;

wherein the apparatus is configured to provide an aerodynamic seal between the first surface and the second surface.

2. The apparatus of claim 1 , wherein the base is composed of a material selected from a group comprising fluorosilicone, silicone, rubber, and plastic.

3. The apparatus of claim 1 , wherein the first member is composed of a material selected from a group comprising conductive metal and rubber.

4. The apparatus of claim 1 , further comprising a leaf spring positioned in the clevis.

5. The apparatus of claim 1 , wherein the bulb can rotate in the base to self-align with deflections.

6. The apparatus of claim 1 , wherein:
the bulb is foam filled.

7. The apparatus of claim 1 , wherein the bulb is removably coupled to the base.

8. The apparatus of claim 1 , wherein the bulb is bonded to the base.

9. An apparatus, comprising:
a first member comprising:
a first portion comprising two parallel projections configured to couple the first member to a first surface by accepting the first surface in a clevis in an area between the two projections, wherein each of the two parallel projections comprises a substantially constant thickness throughout a length of each of the two parallel projections;
a compressible bulb coupled to the first portion and configured to accommodate up and down deflections of the first surface relative to a second surface by compressing; wherein:
an end of each of the two parallel projections is coupled to the bulb; and
the bulb comprises a shape forming a hollow closed circle; and

a deformable base formed from a material that changes shape when air pressure is exerted against a side of the base, the base comprising:
a pair of feet configured to be positioned against the second surface, the second surface comprising a surface to be sealed;
an arched portion located between the feet and adapted to couple the base to the second surface, wherein a tip of a convex portion of the arched portion is located at a midpoint between the pair of feet;
a preloaded seal formed by the arrangement of the pair of feet and the arched portion, the preloaded seal configured to seal against the second surface when air pressure is exerted against the side of the base; and
a plurality of arms configured to accept the bulb of the first member, the plurality of arms comprising a shape that is complementary to a shape of the bulb.

10. The apparatus of claim 9 , wherein the apparatus is configured to provide an aerodynamic seal between the first and second surfaces.

11. The apparatus of claim 9 , wherein the base is composed of a material selected from a group comprising fluorosilicone, silicone, rubber, and plastic.

12. The apparatus of claim 9 , wherein the first member is composed of a material selected from a group comprising conductive metal and rubber.

13. The apparatus of claim 9 , wherein the bulb is bonded to the base.

14. The apparatus of claim 13 , further comprising a leaf spring positioned in the clevis.

15. A system, comprising:
a first surface;
a second surface comprising a surface to be sealed;
a sealing system configured to provide an aerodynamic seal between the first surface and the second surface, the sealing system comprising:
a first member comprising:
a clevis comprising two parallel projections configured to couple the first member to the first surface by accepting the first surface in the clevis in an area between the two projections, wherein each of the two parallel projections comprises a substantially constant thickness throughout a length of each of the two parallel projections;

a compressible bulb coupled to the clevis and configured to accommodate up and down deflections of the first surface relative to the second surface by compressing, wherein:
an end of each of the two parallel projections is coupled to the bulb; and
the bulb comprises a shape forming a hollow closed circle; and

a deformable base formed from a material that changes shape when air pressure is exerted against a side of the base, the base comprising:
a pair of feet configured to be positioned against the second surface;
an arched portion located between the feet, wherein a tip of a convex portion of the arched portion is located at a midpoint between the pair of feet;
a preloaded seal formed by the arrangement of the pair of feet and the arched portion, the preloaded seal configured to seal against the second surface when air pressure is exerted against the side of the base; and
a plurality of arms configured to accept the bulb, the plurality of arms comprising a shape that is complementary to a shape of the bulb.

16. The system of claim 15 , wherein the first member is composed of a material selected from a group comprising conductive metal and rubber.

17. The system of claim 15 , wherein the base is composed of a material selected from a group comprising fluorosilicone, silicone, rubber, and plastic.

18. The system of claim 17 , further comprising a leaf spring positioned in the clevis.

19. The system of claim 15 , wherein the bulb is bonded to the base.

Assignees

• Benner Kent W
• Creswell Roland A
• Lash James K
• Thomas Jr William Alfred
• Lockheed Corp

Inventors

• Benner Kent W
• Creswell Roland A
• Lash James K
• Thomas Jr William Alfred

Classifications

• F16J15/027

  and with a hollow profile · CPC title

• B64C7/00 Primary

  Structures or fairings not otherwise provided for · CPC title

• F16J15/3224

  capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations · CPC title

• F16J15/025

  and with at least one flexible lip · CPC title

• F16J15/062

  characterised by the geometry of the seat · CPC title