Dual layer sandwich for thermal management

Patent metadata

Field	Value
Publication number	US-9475261-B2
Application number	US-201414532488-A
Country	US
Kind code	B2
Filing date	Nov 4, 2014
Priority date	Aug 18, 2014
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

A thermal protection system including a plurality of layers. A first layer includes a passive insulation material. A second layer includes a phase change insulation material. A third layer is positioned between the first layer and the second layer to separate the passive insulation material from the phase change insulation material. A structural system extends through the first layer, the second layer, the third layer, or a combination thereof.

First claim

The invention claimed is:

1. A thermal protection system, the system comprising:
a first layer comprising a passive insulation material;
a second layer comprising a phase change insulation material;
a third layer positioned between the first layer and the second layer to separate the passive insulation material from the phase change insulation material; and
a structural system that extends through the first layer, the second layer, or a combination thereof, and wherein the structural system comprises a truss pin that is coupled to the third layer.

2. The thermal protection system of claim 1 , wherein the structural system further comprises one or more additional truss pins, flutes, baffles, honeycombs, or a combination thereof.

3. The thermal protection system of claim 1 , wherein the truss pin extends through the first layer, the second layer, and the third layer.

4. The thermal protection system of claim 1 , wherein an end of the truss pin is embedded in the third layer.

5. The thermal protection system of claim 1 , wherein an end of the truss pin is oriented at an angle with respect to a body of the truss pin, and wherein the angle is from about 45° to about 135°.

6. The thermal protection system of claim 5 , wherein the end of the truss pin is on an opposite side of the third layer from the body.

7. The thermal protection system of claim 5 , wherein the end of the truss pin is substantially parallel with the third layer.

8. A thermal protection system, the system comprising:
a first layer comprising a first ceramic matrix composite material;
a second layer coupled to the first layer, the second layer comprising a passive insulation material;
a third layer coupled to the second layer such that the second layer is positioned between the first and third layers, the third layer comprising a second ceramic matrix composite material;
a fourth layer coupled to the third layer such that the third layer is positioned between the second and fourth layers, the fourth layer comprising a phase change insulation material;
a fifth layer coupled to the fourth layer such that the fourth layer is positioned between the third and fifth layers, the fifth layer comprising a third ceramic matrix composite material, a carbon reinforced plastic material, a carbon fiber reinforced plastic material, a polymer matrix composite material, or a combination thereof; and
a structural system comprising:
a first truss pin coupled to the first layer and the third layer; and
a second truss pin coupled to the third layer and the fifth layer.

9. The thermal protection system of claim 8 , wherein a first end of the first truss pin is embedded in the first layer.

10. The thermal protection system of claim 9 , wherein a second end of the first truss pin is embedded in the third layer.

11. The thermal protection system of claim 8 , wherein the first truss pin extends through the first layer such that an end of the first truss pin is positioned on an opposite side of the first layer from a body of the first truss pin.

12. The thermal protection system of claim 11 , wherein the end of the first truss pin is oriented at an angle with respect to the body of the first truss pin, and wherein the angle is from about 45° to about 135°.

13. The thermal protection system of claim 12 , wherein the end of the first truss pin is substantially parallel with the first layer.

14. The thermal protection system of claim 8 , wherein the first truss pin extends through the second layer, and wherein the second truss pin extends through the fourth layer.

15. A vehicle comprising:
a body; and
a thermal protection system integrated with the body, the thermal protection system comprising:
a first layer comprising a first ceramic matrix composite material;
a second layer coupled to the first layer, the second layer comprising a passive insulation material;
a third layer coupled to the second layer such that the second layer is positioned between the first and third layers, the third layer comprising a second ceramic matrix composite material;
a fourth layer coupled to the third layer such that the third layer is positioned between the second and fourth layers, the fourth layer comprising a phase change insulation material;
a fifth layer coupled to the fourth layer such that the fourth layer is positioned between the third layer and the fifth layer, the fifth layer comprising a third ceramic matrix composite material, a carbon reinforced plastic material, or a combination thereof; and
a structural system that extends through the second layer, the third layer, the fourth layer, or a combination thereof.

16. The vehicle of claim 15 , wherein the structural system comprises:
a first truss pin coupled to the first layer and coupled to the third layer; and
a second truss pin coupled to the third layer and coupled to the fifth layer.

17. The vehicle of claim 16 , wherein a first end of the first truss pin is embedded in the first layer.

18. The vehicle of claim 16 , wherein the first truss pin extends through the first layer such that an end of the first truss pin is positioned on an opposite side of the first layer from a body of the first truss pin.

19. The vehicle of claim 18 , wherein the end of the first truss pin is substantially parallel with the first layer.

Assignees

• Boeing Co

Inventors

• Pinney Thomas R
• Embler Jonathan D
• Ledesma Jr James P
• Lehman Leanne L
• Heng Sangvavann

Classifications

• B32B2571/00

  Protective equipment · CPC title

• B32B3/12

  characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure · CPC title

• B32B2307/304

  Insulating · CPC title

• B32B7/08 Primary

  by mechanical means · CPC title

• B32B18/00

  Layered products essentially comprising ceramics, e.g. refractory products · CPC title