System and method for a heated gas cylinder assembly

Patent metadata

Field	Value
Publication number	US-10054265-B2
Application number	US-201615363997-A
Country	US
Kind code	B2
Filing date	Nov 29, 2016
Priority date	Nov 29, 2016
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

Systems and methods for a heated gas cylinder assembly are disclosed. The heated gas cylinder assembly may comprise a cylinder shell and a heat exchanger disposed within the cylinder shell. The heat exchanger and the cylinder shell may define an interior chamber configured to hold a gas mixture. The heat exchanger may comprise an inner bore configured to receive a pyrotechnic composition. In response to igniting the pyrotechnic composition, the heat exchanger may provide thermal conduction to the gas mixture. The gas mixture may be simultaneously heated and released, or the gas mixture may be preheated before release.

First claim

What is claimed is:

1. A gas cylinder assembly, comprising:
an outer shell defining an interior chamber and comprising an outlet in fluid communication with the interior chamber;
a heat exchanger disposed within the interior chamber, wherein the heat exchanger comprises an inner bore and a heat exchanger spoke extending radially outward from the heat exchanger, and wherein the heat exchanger and the heat exchanger spoke are in fluid communication with the outlet; and
a pyrotechnic composition disposed within the inner bore.

2. The gas cylinder assembly of claim 1 , wherein the pyrotechnic composition comprises a metal oxide aluminum thermite.

3. The gas cylinder assembly of claim 1 , further comprising an igniter disposed within the pyrotechnic composition and configured to ignite the pyrotechnic composition.

4. The gas cylinder assembly of claim 1 , further comprising an inner shell coupled to a radially outer surface of the heat exchanger, wherein the inner shell is configured to at least partially cover the heat exchanger and the heat exchanger spoke.

5. The gas cylinder assembly of claim 4 , wherein a first end of the inner shell is coupled to the outlet of the outer shell to allow for a flow of a gas between the heat exchanger, the heat exchanger spoke, and the inner shell and through the outlet.

6. The gas cylinder assembly of claim 1 , wherein the heat exchanger is aluminum.

7. A gas cylinder assembly, comprising:
a gas cylinder;
an outlet assembly fluidly coupled to an outlet of the gas cylinder;
a heat exchanger disposed within the gas cylinder in fluid communication with the outlet of the gas cylinder, wherein the heat exchanger comprises an inner bore and a heat exchanger spoke extending radially outward from the heat exchanger, and wherein the heat exchanger, the heat exchanger spoke, and the gas cylinder define an interior chamber; and
a pyrotechnic composition disposed within the inner bore.

8. The gas cylinder assembly of claim 7 , further comprising an igniter disposed within the pyrotechnic composition and configured to ignite the pyrotechnic composition.

9. The gas cylinder assembly of claim 8 , further comprising an igniter control configured to transmit an ignition signal to the igniter to control ignition of the pyrotechnic composition.

10. The gas cylinder assembly of claim 7 , further comprising an inner shell coupled to a radially outer surface of the heat exchanger spoke, wherein the inner shell is configured to at least partially cover the heat exchanger.

11. The gas cylinder assembly of claim 10 , wherein a first end of the inner shell is coupled to the outlet of the gas cylinder to allow for a flow of a gas between the heat exchanger and the inner shell and through the outlet.

12. The gas cylinder assembly of claim 7 , further comprising an inflatable device in fluid connection with the outlet assembly.

13. The gas cylinder assembly of claim 7 , wherein the pyrotechnic composition comprises a metal oxide aluminum thermite.

Assignees

• Goodrich Corp

Inventors

• Mcfarland Eric

Classifications

• F17C2227/0332

  by burning a combustible · CPC title

• F17C7/00 Primary

  Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass · CPC title

• F17C1/005

  Storage of gas or gaseous mixture at high pressure and at high density condition, e.g. in the single state phase · CPC title

• B64D25/14 Primary

  Inflatable escape chutes · CPC title

• F15B2211/218

  the pressure sources being pyrotechnical charges · CPC title