[특허]Inerting fuel systems, methods, and apparatuses

AMETEK, INC.

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Inerting fuel systems, methods, and apparatuses

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/22 B01D-053/30 B01D-053/047 B64D-037/32
출원번호	US-0603458 (2015-01-23)
등록번호	US-9505500 (2016-11-29)
발명자 / 주소	Vigliotta, Michael
출원인 / 주소	AMETEK, INC.
대리인 / 주소	RatnerPrestia
인용정보	피인용 횟수 : 0 인용 특허 : 9

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Inerting fuel systems and methods for inerting fuel tanks are disclosed. An inerting fuel system may include an air inlet passage to receive inlet air, air separation modules to separate oxygen from the inlet air when received, and air separation module valves coupled between the air inlet passage and the air separation modules. The air separation module valves are associated with the air separation modules such that opening of one of the air separation module valves passes a portion of inlet air from the air inlet passage to the air separation module as...

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1. A system for producing nitrogen enriched air to inert fuel in a fuel storage tank, the system comprising: an air inlet passage configured to receive inlet air;a plurality of air separation modules configured to separate oxygen from the inlet air when received to produce nitrogen enriched air;a plurality of air separation module valves coupled between the air inlet passage and the plurality of air separation modules, each of the plurality of air separation module valves associated with one of the plurality of air separation modules such that opening of one of the air separation module valves passes at least a portion of inlet air from the air inlet passage to the air separation module associated with the one of the air separation module valves; anda controller coupled to each of the plurality of air separation module valves, the controller configured to determine a level of wear for each of the plurality of air separation modules and selectively open each of the plurality of air separation module valves such that the level of wear for each of the plurality of air separation modules is substantially equal. 2. The system of claim 1, further comprising a first pressure sensor configured to detect pressure upstream of the plurality of air separation modules and a second pressure sensor configured to detect pressure downstream of the plurality of air separation modules; and wherein the controller is coupled to the first pressure sensor and the second pressure sensor and is further configured to detect a pressure drop over at least one of the plurality of air separation modules based on a difference between pressure detected at the first pressure sensor and pressure detected at the second pressure sensor. 3. The system of claim 2, wherein the controller is further configured to determine that one or more of the plurality of air separation modules needs replacement when the pressure drop exceeds a replacement threshold value. 4. The system of claim 1, wherein the controller is further configured to determine that one or more of the plurality of air separation modules needs replacement when the amount of time open for the one or more of the plurality of air separation module valves exceeds a threshold value. 5. The system of claim 1, wherein the controller is further configured to determine the level of wear one of the plurality of air separation module receives based on the amount of time the one air separation module receives the portion of inlet air. 6. The system of claim 1, wherein the controller is further configured to determine the level of wear one of the plurality of air separation module receives based on the intensity of the portion of inlet air received by the air separation modules. 7. The system of claim 1, wherein the plurality of air separation modules is coupled to the fuel storage tank and wherein the plurality of air separation modules provides nitrogen enriched air at a rate corresponding to the rate of fuel being removed from the fuel storage tank. 8. A method for inerting fuel, comprising: associating each of a plurality of air separation module valves to one of a plurality of air separation modules, the air separation modules being configured to separate oxygen from a portion of inlet air when active to produce nitrogen enriched air;passing the portion of inlet air from an inlet air passage to the plurality of air separation module valves;determining a level of wear for each of the plurality of air separation modules;selectively opening each of the plurality of air separation module valves based on the determined level of wear such that the level of wear for each of the plurality of air separation modules is substantially equal; anddirecting the nitrogen enriched air produced by the plurality of air separation modules to a fuel storage tank. 9. A method for inerting fuel, comprising: determining a level of wear for each of a plurality of air separation modules configured to produce nitrogen enriched air;selectively opening each of a plurality of air separation module valves such that each of the plurality of air separation modules has a similar level of wear; anddirecting the nitrogen enriched air produced by the plurality of air separation modules to a fuel storage tank. 10. The method of claim 9, further comprising: determining a pressure drop across at least one of the plurality of air separation modules by detecting a pressure upstream of the plurality of air separation modules and detecting a pressure downstream of the plurality of air separation modules; andidentifying at least one of the plurality of air separation modules for replacement when the pressure drop exceeds a threshold value. 11. The method of claim 9, wherein the determining step comprises determining the level of wear for one or more of the plurality of air separation modules based on the amount of time the one or more air separation modules receives the portion of inlet air. 12. The method of claim 9, wherein the determining step comprises determining the level of wear for one or more of the plurality of air separation modules based on the intensity of the portion of inlet air received by the one or more air separation modules. 13. The method of claim 8, further comprising: determining a pressure drop across at least one of the plurality of air separation modules by detecting a pressure upstream of the plurality of air separation modules and detecting a pressure downstream of the plurality of air separation modules; andidentifying at least one of the plurality of air separation modules for replacement when the pressure drop exceeds a threshold value. 14. The method of claim 8, wherein the determining step comprises determining the level of wear for one or more of the plurality of air separation modules based on the amount of time the one or more air separation modules receives the portion of inlet air. 15. The method of claim 8, wherein the determining step comprises determining the level of wear for one or more of the plurality of air separation modules based on the intensity of the portion of inlet air received by the one or more air separation modules.

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Inerting fuel systems, methods, and apparatuses

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