Fuel bladder mass attenuation system

Patent metadata

Field	Value
Publication number	US-10518894-B2
Application number	US-201715481846-A
Country	US
Kind code	B2
Filing date	Apr 7, 2017
Priority date	Apr 7, 2017
Publication date	Dec 31, 2019
Grant date	Dec 31, 2019

Abstract

A protective assembly includes a gas bag and a fuel container which includes a first wall. The fuel container is positioned within an aircraft and the gas bag extends along the first wall of the fuel container. A method for assembling a protective assembly includes the step of positioning a gas bag within an aircraft such that the gas bag extends along a first wall of a fuel container.

First claim

What is claimed:

1. A protective assembly, comprising:
a gas bag, wherein;
the gas bag comprises an exterior wall which defines an opening; and
further including a pressure release valve associated with the opening and in fluid communication with an interior of the gas bag and an exterior of the gas bag; and

a fuel container comprising a first wall, wherein
the fuel container is positioned within an aircraft; and
the gas bag extends along the first wall outside of the fuel container.

2. The protective assembly of claim 1 , wherein the gas bag contains an inert gas.

3. The protective assembly of claim 2 , wherein the inert gas is pressurized within a pressure range which includes five pounds per square inch up to and including thirty pounds per square inch.

4. The protective assembly of claim 1 , wherein the fuel container is constructed of a reinforced vulcanized rubber material.

5. The protective assembly of claim 1 , wherein:
the first wall of the fuel container comprises a bottom side which faces a bottom portion of the aircraft;
the first wall of the fuel container comprises a lateral side of the first wall which extends in a direction away from a bottom portion of the aircraft; and
the fuel container is constructed of a reinforced vulcanized rubber material.

6. The protective assembly of claim 5 , wherein the gas bag abuts the bottom side of the first wall of the fuel container.

7. A method for assembling a protective assembly, comprising:
positioning a gas bag to extends along an outside of a first wall of a fuel container, wherein:
the fuel container is positioned within an aircraft; the gas bag extends along the first wall outside of the fuel container;
the gas bag comprising an exterior wall which defines an opening; and
the gas bag further including a pressure release valve associated with the opening and in fluid communication with an interior of the gas bag and an exterior of the gas bag.

8. The method of claim 7 , wherein
the pressure release valve is associated with the opening such that the pressure release valve is positioned in a fluid flow blocking relationship between the interior of the gas bag and the exterior of the gas bag with the pressure release valve in a closed position and the pressure release valve is positioned in a fluid flow non-blocking relationship between the interior of the gas bag and the exterior of the gas bag with the pressure release valve in an open position;
the fuel container is constructed of a reinforced vulcanized rubber material; and
positioning the gas bag further includes pressurizing the gas bag with an inert gas.

9. The method of claim 7 , wherein:
the gas bag comprising at least one compartment positioned within the gas bag; and
the pressure release valve is associated with the opening defined in the exterior wall of the gas bag such that the exterior of the gas bag and the interior of the at least one compartment are in fluid communication with the pressure release valve, so that with the pressure release valve in an open position, the pressure release valve is in a non-blocking relationship between the interior of the at least one compartment and the exterior of the gas bag and with the pressure release valve in a closed position, the pressure release valve is in a fluid flow blocking relationship between the interior of the at least one compartment and the exterior of the gas bag.

10. The method of claim 7 , further including:
positioning the gas bag along a bottom side of the first wall of the fuel container wherein the bottom side of the first wall of the fuel container faces a bottom portion of the aircraft; and
positioning the gas bag along a lateral side of the first wall of the fuel container which extends in a direction away from the bottom portion of the aircraft.

11. The method of claim 7 , further including positioning the gas bag to abut against the first wall of the fuel container.

12. The method of claim 7 , further including positioning the gas bag between the first wall of the fuel container and a structure of the aircraft.

13. A protective assembly, comprising:
a gas bag, comprising:
a compartment positioned within the gas bag;
an exterior wall which defines an opening;
further including a pressure release valve associated with the opening and is in fluid communication with an interior of the compartment and an exterior of the gas bag; and

a fuel container comprising a first wall, wherein:
the fuel container is positioned within an aircraft; and
the gas bag extends along the first wall outside of the fuel container.

14. The protective assembly of claim 13 , wherein the at least one compartment contains an inert gas.

15. The protective assembly of claim 14 , wherein the inert gas is pressurized within the at least one compartment in a pressure range which includes five pounds per square inch up to and including thirty pounds per square inch.

16. The protective assembly of claim 13 , further includes the pressure release valve is positioned extending through the opening of the exterior wall of the gas bag and into an interior of the at least one compartment.

17. The protective assembly of claim 13 , wherein with the pressure release valve in a closed position the interior of the at least one compartment is closed from the exterior of the gas bag and with the pressure release valve in an open position, the interior of the at least one compartment is in fluid communication with the exterior of the gas bag.

18. A protective assembly, comprising:
a gas bag, wherein:
the gas bag comprises a compartment positioned within the gas bag;
the gas bag comprises an exterior wall which defines an opening; and
a pressure release valve is associated with the opening and is in fluid communication with an interior of the compartment and an exterior of the gas bag; and

a fuel container comprising a first wall, wherein
the fuel container is positioned within an aircraft;
the gas bag extends along the first wall outside of the fuel container;
with the pressure release valve in a closed position the interior of the at least one compartment is closed from the exterior of the gas bag and with the pressure release valve in an open position, the interior of the at least one compartment is in fluid communication with the exterior of the gas bag;
the gas bag is positioned between the bottom side of the first wall of the fuel container and a skin of the aircraft; and
the gas bag abuts the skin of the aircraft.

19. A protective assembly, comprising:
a gas bag, wherein:
the gas bag comprises a compartment positioned within the gas bag;
the gas bag comprises an exterior wall which defines an opening; and
a pressure release valve is associated with the opening and is in fluid communication with an interior of the compartment and an exterior of the gas bag; and

a fuel container comprising a first wall, wherein
the fuel container is positioned within an aircraft;
the gas bag extends along the first wall outside of the fuel container;
with the pressure release valve in a closed position the interior of the at least one compartment is closed from the exterior of the gas bag and with the pressure release valve in an open position, the interior of the at least one compartment is in fluid communication with the exterior of the gas bag; and

the gas bag abuts a lateral side of the first wall of the fuel container and is positioned between the lateral side of the first wall of the fuel container and a structural member of the aircraft

Assignees

• Boeing Co

Inventors

• Ludin Douglas R
• Misciagna David T

Classifications

• B64D37/04

  Arrangement thereof in or on aircraft · CPC title

• B64D2201/00

  Airbags mounted in aircraft for any use · CPC title

• B64D37/06 Primary

  Constructional adaptations thereof · CPC title

• B64D37/32 Primary

  Safety measures not otherwise provided for, e.g. preventing explosive conditions · CPC title