[특허]Anti-icing fluid injection nozzle

The Boeing Company

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Anti-icing fluid injection nozzle

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F17C-007/02
미국특허분류(USC)	062/052.1; 062/046.1
출원번호	US-0352341 (2003-01-27)
발명자 / 주소	Lozano, Martin E. Moore, Christopher A. Neary, David A.
출원인 / 주소	The Boeing Company
대리인 / 주소	Harness Dickey & Pierce P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 9

초록
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A system to produce a densified fluid, and more particularly a densified propellant to be used in a launch vehicle. The system includes a vessel containing a first fluid and an injection nozzle to inject a cooling fluid into the vessel. The first fluid in the vessel has a freezing temperature greater than the boiling point of the second fluid that is injected into it. The second fluid is injected into the first fluid and evaporates therefrom to cool the first fluid. An anti-icing chamber is placed around the injection nozzle and a third fluid is provided to the anti-icing chamber to form an interface which does not allow the first fluid to contact the injection nozzle. In this way, the second fluid can be substantially continuously provided through the injection nozzle to the first fluid to cool the first fluid. A heat exchanger can then be provided in the vessel to cool an additional material.

대표
청구항
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1. A cooling system to cool a first fluid with a second fluid, comprising:a vessel containing a selected volume of said first fluid;a cooling injection nozzle disposed in said vessel adapted to inject said second fluid into said first fluid;a coolant container containing a volume of said second fluid;a supply line interconnecting said coolant container and said cooling injection nozzle;a chamber disposed in said vessel and surrounding at least a portion of said injection nozzle and defining an opening, said chamber substantially shielding said injection nozzle from contact with said first fluid;a purge fluid inlet extending from said chamber;a purge fluid supply, wherein a volume of said purge fluid is supplied from said purge fluid supply to said chamber;wherein an interface is formed between said first fluid and said purge fluid when said purge fluid is supplied to said chamber; andwherein said chamber allows for a substantially maintainable and selectable temperature of said first fluid. 2. The cooling system of claim 1, further comprising:said vessel defining an evaporation space;a vent allowing a volume of second fluid to be vented from said evaporation space; andwherein said evaporation space allows said second fluid to evaporate from below a surface of said first fluid to cool said first fluid. 3. The cooling system of claim 2, further comprising:a vent valve to selectively control a rate of fluid venting from said vessel; andwherein controlling said venting assists in controlling the temperature of said first fluid. 4. The cooling system of claim 1, further comprising:an auxiliary purge fluid line to supply an auxiliary purge fluid volume through said injection nozzle when said second fluid is not being supplied through said injection nozzle; andwherein said auxiliary purge fluid volume maintains a positive pressure through said injection nozzle to substantially eliminate solids formation in or on said injection nozzle. 5. The cooling system of claim 1, wherein:said chamber includes a substantially rigid housing encompassing at least 20% of a total available area around said injection nozzle, and defining an outlet opening;when activated said chamber includes a pressure of said purge fluid greater than a pressure of said first fluid, such that said interface substantially defines a boundary between said first fluid and an interior of said chamber; andwherein said first fluid is maintained a distance from said injection nozzle when said chamber is substantially filled with said purge fluid. 6. The cooling system of claim 5, wherein:said chamber and said interface define an anti-ice volume substantially surrounding said injection nozzle to substantially eliminate said first liquid from contacting said injection nozzle. 7. The cooling system of claim 1, further comprising:a heat exchanger in thermal communication with said first fluid; andwherein passing a densifiable material through said heat exchanger densifies said densifiable material. 8. The cooling system of claim 1, wherein:said first fluid includes nitrogen;said second fluid includes hydrogen; andsaid purge fluid includes a substantially non-compressible gas. 9. An anti-crystallization apparatus to substantially eliminate the formation of crystals on or in an injection nozzle, the anti-crystallization apparatus comprising:a chamber adapted to withstand a pressure, said chamber defining an anti-crystallization volume and having an outlet opening, said injection nozzle being disposed within said chamber;said injection nozzle to inject a first fluid at a selected rate through said chamber and through said outlet opening;an injection port to inject a second fluid into said chamber to maintain a pressure within said chamber greater than a pressure outside of said chamber; andwherein an interface is formed at said outlet opening between said second fluid and an exterior fluid present adjacent an exterior of said chamber such that said exterior fluid is substantially e liminated from said interior of said chamber. 10. The anti-crystallization apparatus of claim 9, further comprising:a vessel containing said exterior fluid;a first fluid container, wherein said first fluid is injected through said injection nozzle through said opening of said chamber and into said exterior fluid; andwherein said first fluid travels through said anti-crystallization volume to cool said exterior fluid. 11. The anti-crystallization apparatus of claim 10, further comprising:a vent extending from said vessel;wherein said vessel defines an evaporation volume substantially devoid of said exterior fluid to allow said first fluid to evaporate; andwherein said vent selectively allows a volume of said first or second fluid to exit said vessel. 12. The anti-crystallization apparatus of claim 10, further comprising:a second fluid supply, wherein a volume of said second fluid is supplied from said second fluid supply to said chamber; andwherein said chamber allows for a substantially maintainable and selectable temperature of said exterior fluid. 13. The anti-crystallization apparatus of claim 10, further comprising:a first container containing a volume of said first fluid;a supply line interconnecting said first fluid container and said injection nozzle;a valve to control the flow of said first fluid through said injection nozzle; andwherein selecting a flow rate with said valve allows a selection of a temperature of said exterior fluid. 14. The anti-crystallization apparatus of claim 10, further comprising:a heat exchanger in thermal communication with said exterior fluid or said first fluid; andwherein passing a densifiable material through said heat exchanger densifies said densifiable material. 15. A method of injecting a first fluid, with an injection nozzle, into a second fluid through an anti-icing chamber, the method comprising:filling a vessel with a selected volume of said second fluid;forming a substantially constantly sized anti-icing chamber;disposing said anti-icing chamber in said vessel substantially within said volume of said second fluid, wherein said chamber includes an outlet opening;injecting said first fluid into said second fluid through said outlet opening; andinjecting a third fluid into said chamber to prevent said first fluid from entering said chamber. 16. The method of claim 15, further comprising:providing said first fluid having a boiling point less than the freezing point of said second fluid;evaporating a volume of said first fluid from said second fluid to cool said second fluid; andventing a volume of said first fluid from said vessel. 17. The method of claim 15, further comprising:disposing a heat exchanger in thermal communication with said second fluid; andflowing a fourth fluid through said heat exchanger to cool said fourth fluid. 18. The method of claim 17, further comprising:removing a portion of thermal energy from said heat exchanger with said first fluid; andremoving a portion of thermal energy from said fourth fluid. 19. The method of claim 15, wherein said first fluid includes hydrogen; andsaid second fluid includes nitrogen. 20. An injection nozzle system comprising:a vessel for holding a quantity of a bath fluid;a member disposed in said vessel so as to be immersed in said bath fluid;an injection nozzle disposed in said member;a coolant supply for supplying a coolant through said injection nozzle into said bath fluid; andan purge supply for supplying a purge fluid through said member, said purge fluid operating to keep said bath fluid from entering said member at least while said coolant is flowing through said injection nozzle. 21. The injection nozzle system of claim 20, further comprising:a vent extending from said vessel;wherein said vessel defines an evaporation volume substantially devoid of said bath fluid and to allow said coolant to evaporate; andwherein said vent selectively allows a volume of said purge fluid and said coolant to exit said vessel. 22. The injection nozzle system of claim 20, further comprising:a propellant fluid, wherein a volume of said propellant fluid is supplied into said vessel; andwherein said chamber allows for a substantially maintainable and selectable temperature of said bath fluid. 23. The injection nozzle system of claim 22, further comprising:a heat exchanger in thermal communication with said bath fluid or said coolant; andwherein passing said propellant through said heat exchanger densities said propellant.

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Anti-icing fluid injection nozzle

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Anti-icing fluid injection nozzle

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이 특허에 인용된 특허 (9)

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