Rupture constraint mechanism

Patent metadata

Field	Value
Publication number	US-10060355-B2
Application number	US-201514617640-A
Country	US
Kind code	B2
Filing date	Feb 9, 2015
Priority date	Feb 9, 2015
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

Apparatus and system for containing a rupture of a duct. The apparatus includes an air-permeable sheet, such as a wide-weave fiberglass sheet. The air-permeable sheet includes a strap arranged on a first side of the sheet such that it forms diamond-shaped patterns along a longitudinal axis. The strap can be made of a tight-weave fiberglass. Laterally-spaced corners of the diamond-shaped patterns include connection members that can be engaged to affix the strap and the air-permeable sheet around a duct. Various aspects include an air-impermeable air barrier surrounding the wide-weave fiberglass sheet and strap. The air barrier can include a window that directs air from a ruptured duct. Various aspects can be used on a bleed-air duct of an aircraft. The window of the air barrier can be aimed at a temperature sensor. A valve can close the bleed-air duct if the temperature sensor detects a high temperature leak.

First claim

What is claimed is:

1. An apparatus, comprising:
a sheet that includes a first side and a second opposing side; and
a strap arranged on the first side of the sheet, the strap comprising a first weave material, the strap including a first plurality of connection members and a second plurality of connection members arranged along the strap such that the first plurality of connection members can couple to respective ones of the second plurality of connection members when the sheet is disposed on a pressurized gas vessel, the strap extending along an axis on the sheet from a start point to an end point and criss-crossing the axis to form a plurality of diamond-shaped patterns on the first side of the sheet, wherein opposing laterally-spaced corners of each diamond pattern are located a lateral width away from the axis, the strap folding over at the laterally-spaced corners, the first plurality of connection members attached to the strap at respective folds at the first laterally-spaced corners, and the second plurality of connection members attached to the strap at respective folds at the second laterally-spaced corners.

2. The apparatus of claim 1 , wherein the strap comprises an S-glass fiberglass.

3. An apparatus, comprising:
a sheet that includes a first side and a second opposing side, wherein the sheet comprises an air-permeable weave fiberglass, wherein the air-permeable sheet comprises a weave arresting strip, wherein the weave arresting strip comprises:
a pleat formed in the air-permeable sheet;
a first strip of tape arranged on a first side of the pleat;
a second strip of tape arranged on a second side of the pleat; and
stitching that engages the pleat, the first strip of tape, and the second strip of tape; and

a strap arranged on the first side of the sheet, wherein the strap comprises a first weave material, and wherein the strap includes a first plurality of connection members and a second plurality of connection members arranged along the strap such that the first plurality of connection members can couple to respective ones of the second plurality of connection members when the sheet is disposed on a pressurized gas vessel.

4. The apparatus of claim 1 , wherein the strap is sewn to the air-permeable sheet with stitches.

5. The apparatus of claim 1 , wherein the first plurality of connection members comprise a plurality of male buckle members, wherein the second plurality of connection members comprise a plurality of female buckle members, and wherein the plurality of male buckle members engage respective ones of the plurality of female buckle members to couple the first connection members to the second connection members.

6. The apparatus of claim 5 , wherein the plurality of male buckle members disengage the respective ones of the plurality of female buckle members to decouple the first connection members from the second connection members.

7. An apparatus, comprising:
a sheet that includes a first side and a second opposing side; and
a strap arranged on the first side of the sheet, the strap comprising:
a first weave material;
a first plurality of connection members and a second plurality of connection members arranged along the strap such that the first plurality of connection members can couple to respective ones of the second plurality of connection members when the sheet is disposed on a pressurized gas vessel, and wherein the first plurality of connection members comprise a first connection rod engaged with at least two first laterally-spaced corners, wherein the second plurality of connection members comprise a second connection rod engaged with at least second laterally-spaced corners; and
at least one connection clip configured to attach to the first connection rod and the second connection rod.

8. A system for isolating a duct, the system comprising:
a rupture constraint mechanism comprising:
an air-permeable fiberglass sheet that includes a first side and a second opposing side, the air-permeable fiberglass sheet defining a longitudinal axis;
a strap arranged on the first side of the air-permeable fiberglass sheet, the strap comprising weaved fiberglass, the strap extending along the longitudinal axis from a start point on the longitudinal axis to an end point on the longitudinal axis, the strap criss-crossing the longitudinal axis to form a plurality of diamond-shaped patterns on the first side of the air-permeable fiberglass sheet, wherein opposing laterally-spaced corners of each diamond-shaped pattern are located a lateral width away from the longitudinal axis;
first connection members attached to the strap at respective first laterally-spaced corners of the diamond-shaped pattern on a first side of the longitudinal axis; and
second connection members attached to the strap at respective second laterally-spaced corners of the diamond-shaped pattern on a second side of the longitudinal axis, the second connection members configured to be coupled to the first connection members to strap the air-permeable fiberglass sheet around a duct; and

an air barrier that wraps around the rupture constraint mechanism on the duct, the air barrier comprising:
an insulation blanket; and
a fastener mechanism that fastens a first edge of the insulation blanket relative to a second opposing edge of the insulation blanket around the duct.

9. The system of claim 8 , wherein the strap folds over at the laterally-spaced corners, wherein the first connection members are attached to the strap at respective folds at the first laterally-spaced corners, and wherein the second connection members are attached to the strap at respective folds at the second laterally-spaced corners.

10. The system of claim 8 , wherein the air-permeable fiberglass sheet comprises a second weave fiberglass, wherein the weave fiberglass of the strap is tighter than the weave of the air-permeable fiberglass sheet.

11. The system of claim 8 , wherein the strap comprises an S-glass fiberglass.

12. The system of claim 8 , wherein the air-permeable fiberglass sheet comprises a weave arresting strip, wherein the weave arresting strip comprises:
a pleat formed in the air-permeable fiberglass sheet;
a first strip of fiberglass tape arranged on a first side of the pleat;
a second strip of fiberglass tape arranged on a second side of the pleat; and
fiberglass stitching engaging the pleat, the first strip of fiberglass tape, and the second strip of fiberglass tape.

13. The system of claim 8 , wherein the strap is sewn to the air-permeable fiberglass sheet with fiberglass stitches.

14. The system of claim 8 , wherein the first connection members comprise a plurality of male buckle members, wherein the second connection members comprise a plurality of female buckle members, and wherein the plurality of male buckle members engage respective ones of the plurality of female buckle members to couple the first connection members to the second connection members.

15. The system of claim 8 , wherein the first connection members comprise a first connection rod engaged with at least two of the first laterally-spaced corners, wherein the second connection members comprise a second connection rod engaged with at least two of the second laterally-spaced corners; and
further comprising at least one connection clip configured to attach to the first connection rod and the second connection rod.

16. An aircraft, comprising:
a wing that includes at least one of a composite skin and a composite wing spar;
a gas turbine engine attached to the wing;
a bleed air duct from the gas turbine engine passing through the wing;
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Assignees

• Boeing Co

Inventors

• Wheaton Christopher
• Shander Mark Stephen

Classifications

• F05D2300/2102

  Glass · CPC title

• F02C7/00

  Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants (controlling F02C9/00) · CPC title

• Y02T50/672

  Cross-Sectional Technologies · mapped topic

• F02C7/24 Primary

  Heat or noise insulation (air intakes having provisions for noise suppression F02C7/045; turbine exhaust heads, chambers, or the like F01D25/30; silencing nozzles of jet-propulsion plants F02K1/00) · CPC title

• B64D13/00

  Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space · CPC title