[특허]Fire suppression systems and methods of suppressing a fire

Orbital ATK, Inc.

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Fire suppression systems and methods of suppressing a fire

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A62C-005/00 A62C-013/22 A62C-035/02 A62C-013/76
출원번호	US-0629065 (2015-02-23)
등록번호	US-9682259 (2017-06-20)
발명자 / 주소	Sampson, William P.
출원인 / 주소	Orbital ATK, Inc.
대리인 / 주소	TraskBritt
인용정보	피인용 횟수 : 0 인용 특허 : 138

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Fire suppression apparatuses include a housing with gas generant material disposed therein, an initiator for igniting the gas generant material, and a cooling system. The cooling system includes a first chamber with a coolant material disposed therein and a second chamber. The coolant material is caused to flow from the first chamber into the second chamber to cool gas formed by the ignition of the gas generant material upon exiting from the housing under pressure. The cooling system may further include a piston disposed within the first chamber and movable responsive to gas pressure. Methods for cooling a fire suppressant gas and methods for suppressing a fire include flowing a fire suppressant gas into first and second chambers of a cooling system, flowing a coolant material from the first chamber into the second chamber, and contacting the fire suppressant gas with the coolant material to cool the fire suppressant gas.

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1. A fire suppression system, comprising: a generator housing having a gas generant material disposed therein; anda cooling system disposed adjacent to the generator housing, the cooling system comprising: a first chamber having a coolant material disposed therein;a second chamber at least partially laterally surrounded by the first chamber;one or more first openings into a first longitudinal end of the first chamber;a first pressure-sensitive barrier covering the one or more first openings;one or more second openings between a second longitudinal end of the first chamber and the second chamber;a second pressure-sensitive barrier covering the one or more second openings; anda plate including at least one third opening therethrough positioned in the second chamber between the one or more first openings and the one or more second openings. 2. The fire suppression system of claim 1, wherein the first chamber is defined at least in part by a first housing and the second chamber is defined at least in part by a second housing positioned within the first housing. 3. The fire suppression system of claim 2, wherein the one or more first openings into the first longitudinal end of the first chamber extend through a wall of the second housing. 4. The fire suppression system of claim 2, wherein the one or more second openings between the second longitudinal end of the first chamber and the second chamber extend through a wall of the second housing. 5. The fire suppression system of claim 1, wherein the first chamber is at least partially defined by a perforated plate disposed at the first longitudinal end of the first chamber. 6. The fire suppression system of claim 5, wherein the one or more first openings comprise perforations of the perforated plate, and the first pressure-sensitive barrier covers the perforated plate. 7. The fire suppression system of claim 1, wherein the cooling system does not include a piston. 8. The fire suppression system of claim 1, wherein each of the first pressure-sensitive barrier and the second pressure-sensitive barrier comprises a foil that is configured to rupture at a predetermined pressure above ambient pressure outside of the fire suppression system. 9. A fire suppression system, comprising: a generator housing having a solid gas generant material and an ignition material disposed therein; anda cooling system coupled to the generator housing, the cooling system comprising: a first, outer housing at least partially defining a first chamber therein;a second housing at least partially defining a second chamber therein, the second housing positioned generally centrally within the first chamber;a coolant material disposed within the first chamber and at least partially surrounding the second housing;a first barrier covering one or more first openings into the first chamber positioned and sized to provide fluid communication to the first chamber from the generator housing;a second barrier covering one or more second openings positioned and sized to provide fluid communication between the first chamber and the second chamber; anda plate having at least one third opening therethrough positioned within the second chamber, wherein the one or more first openings are positioned in a generated gas flowpath upstream of the plate and the one or more second openings are positioned in the generated gas flowpath downstream of the plate. 10. The fire suppression system of claim 9, wherein each of the generator housing and the first, outer housing is cylindrical. 11. The fire suppression system of claim 10, wherein the first, outer housing is aligned generally coaxially with the generator housing. 12. A method of suppressing a fire, the method comprising: generating a fire suppressant gas with a gas generant material disposed in a generator housing;directing the generated gas to a cooling system disposed adjacent to the generator housing;rupturing, responsive to pressure from the generated gas, a first pressure-sensitive barrier covering one or more first openings into a first longitudinal end of a first chamber of the cooling system;directing a portion of the generated gas into the first chamber though the one or more first openings;rupturing, responsive to pressure from the generated gas acting on a coolant material in the first chamber, a second pressure-sensitive barrier covering one or more second openings between a second longitudinal end of the first chamber and a second chamber of the cooling system at least partially surrounded by the first chamber; anddirecting at least a portion of the coolant material from the first chamber to the second chamber through the one or more second openings without moving a piston. 13. The method of claim 12, further comprising directing another portion of the generated gas through the second chamber. 14. The method of claim 13, wherein directing the another portion of the generated gas through the second chamber comprises directing the another portion of the generated gas through a plate having at least one opening therethrough positioned within the second chamber. 15. The method of claim 13, further comprising mixing the at least a portion of the coolant material with the another portion of the generated gas directed through the second chamber. 16. The method of claim 12, wherein rupturing, responsive to pressure from the generated gas, the first pressure-sensitive barrier covering the one or more first openings into the first longitudinal end of the first chamber of the cooling system comprises rupturing the first pressure-sensitive barrier covering perforations of a perforated plate positioned at the first longitudinal end of the first chamber. 17. The method of claim 12, wherein rupturing, responsive to pressure from the generated gas, the first pressure-sensitive barrier covering the one or more first openings into the first longitudinal end of the first chamber of the cooling system comprises rupturing the first pressure-sensitive barrier covering the one or more first openings extending through a wall of a housing defining the second chamber.

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