Systems and methods for duct protection of a vehicle

Patent metadata

Field	Value
Publication number	US-9789747-B2
Application number	US-201414448305-A
Country	US
Kind code	B2
Filing date	Jul 31, 2014
Priority date	Jul 31, 2014
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

Methods and systems for duct protection of a vehicle are provided. The methods and systems provided include an apparatus for containing a flow of fluid discharged from a fracture in a duct. The apparatus includes a ballistic containment layer and an insulation sheath coupled to the ballistic containment layer. The insulation sheath includes a first air containment layer, an insulation layer, and a second air containment layer.

First claim

What is claimed is:

1. An apparatus for use with a duct that channels a fluid therethrough, said apparatus comprising:
a ballistic containment layer configured to be exposed to the fluid, wherein said ballistic containment layer mates against the duct;
an insulation sheath coupled to said ballistic containment layer such that said insulation sheath circumscribes said ballistic containment layer, wherein said insulation sheath is configured to restrict heat transfer from within the duct, said insulation sheath comprising:
a first air containment layer;
a second air containment layer; and
an insulation layer positioned between said first and second air containment layers; and

a vent defined through said first air containment layer, said second air containment layer, and said insulation layer.

2. The apparatus according to claim 1 further comprising an outer ballistic containment layer substantially circumscribes said insulation sheath.

3. The apparatus according to claim 1 , wherein said ballistic layer comprises a fiberglass weave of S-glass fibers.

4. The apparatus according to claim 1 , wherein said first and said second air containment layers encapsulate said insulation layer to substantially isolate said insulation layer from fluid flowing from the duct through the fracture.

5. The apparatus according to claim 1 , wherein said first and said second air containment layers are formed from a temperature-resistant material that is substantially impermeable to fluid flowing from the duct through the fracture.

6. The apparatus according to claim 1 further comprising a releasable fastener coupled to said second air containment layer.

7. A method of fabricating an apparatus for containing a flow of fluid discharged from a fracture in a duct, said method comprising:
forming a ballistic containment layer configured to be exposed to the fluid, wherein the ballistic containment layer mates against the duct;
forming an insulation sheath, wherein the insulation sheath is configured to restrict heat transfer from within the duct, wherein forming the insulation sheath comprises:
forming a first air containment layer;
forming a second air containment layer; and
forming an insulation layer positioned between the first and second air containment layers;

forming a vent through the first air containment layer, the second air containment layer, and the insulation layer; and
coupling the ballistic containment layer to the insulation sheath such that the insulation sheath circumscribes said ballistic containment layer.

8. The method of claim 7 , wherein forming a ballistic containment layer comprises forming a ballistic containment layer from a temperature resistant material that is permeable to enable the fluid to flow therethrough.

9. The method of claim 8 , wherein forming a ballistic containment layer comprises forming a ballistic containment layer from a fiberglass weave of S-glass fibers.

10. The method of claim 7 , wherein forming the first and second air containment layers comprises forming the first and second air containment layers from a temperature resistant material that is substantially impermeable to prevent the fluid from flowing therethrough.

11. The method of claim 10 , wherein forming the first and second air containment layers comprises forming the first and second air containment layers from one of silicone rubber or silicone coated fiberglass.

12. The method of claim 7 , wherein forming the insulation sheath comprises encapsulating the insulation layer between the first and second air containment layers to substantially isolate the insulation layer from the fluid flowing from the duct through the fracture.

13. A duct protection system for a vehicle, said system comprising:
a duct configured to channel a fluid therethrough; and
a duct burst apparatus comprising:
a ballistic containment layer configured to be exposed to the fluid, wherein said ballistic containment layer mates against said duct;
an insulation sheath coupled to said ballistic containment layer such that said insulation sheath circumscribes said ballistic containment layer, wherein said insulation sheath is configured to restrict heat transfer from within the duct, said insulation sheath comprising:
a first air containment layer;
a second air containment layer; and
an insulation layer positioned between said first and second air containment layers; and

a vent defined through said first air containment layer, said second air containment layer, and said insulation layer.

14. The duct protection system according to claim 13 , wherein said ballistic containment layer is permeable to enable the fluid flow to pass therethrough.

15. The duct protection system according to claim 13 , wherein said first and said second air containment layers are formed from a temperature-resistant material that is impermeable to the fluid flow from the fracture, wherein said first and said second air containment layers substantially encapsulate said insulation layer to prevent exposure of said insulation layer to the fluid flowing from said duct through the fracture.

Assignees

• Boeing Co

Inventors

• Hull John Ralph
• Strasik Michael
• Voss Bret A
• Negley Mark A
• Sweet William J
• Housen Kevin R
• Damazo Jason S
• Gonzales Michael D
• Ware Michael Howard-Edward
• Firth Lee Charles

Classifications

• F17D5/02

  Preventing, monitoring, or locating loss · CPC title

• F16L55/07

  Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining (apparatus for draining F16T) · CPC title

• F16L59/145

  providing fire-resistance · CPC title

• B32B1/08

  Tubular products · CPC title

• F16L57/04

  against fire or other external sources of extreme heat · CPC title