[특허]Vacuum pressure systems

United Technologies Corp.

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Vacuum pressure systems

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-017/04 F04B-035/04
미국특허분류(USC)	417/417; 417/416
출원번호	US-0871428 (2007-10-12)
등록번호	US-8465266 (2013-06-18)
발명자 / 주소	Gieras, Jacek F. Tillman, Thomas G. Reeve, Hayden M.
출원인 / 주소	United Technologies Corp.
대리인 / 주소	O'Shea Getz P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 18

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Vacuum pressure systems are provided. In this regard, a representative vacuum pressure system includes: an inlet; and a linear actuator having a permanent magnet, a coil, an inner ferromagnetic core and an outer ferromagnetic core, the outer ferromagnetic core surrounding at least a portion of each of the permanent magnet, the coil, and the inner ferromagnetic core; the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear act...

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1. A vacuum pressure system comprising: an inlet;a linear actuator having a permanent magnet, a coil, an inner ferromagnetic core and an outer ferromagnetic core, the outer ferromagnetic core surrounding at least a portion of each of the permanent magnet, the coil, and the inner ferromagnetic core;the linear actuator being operative to exhibit relative motion between the peimanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear actuator forms vacuum pressure and draws fluid into the inlet; anda biasing member operative to bias the permanent magnet against a force caused by the electrical current being applied to the coil, which biasing member comprises a diaphragm that forms a seal with a housing, which housing includes a sidewall and an endwall, and which sidewall extends from the diaphragm to the endwall thereby sealingly defining an interior chamber within the housing in which the linear actuator is located;wherein the endwall includes an aperture that fluidly communicates with the inlet. 2. The system of claim 1, wherein: the system further comprises an outlet; andthe linear actuator is further operative to expel at least some of the fluid drawn into the inlet through the outlet. 3. The system of claim 1, wherein: the system further comprises a valve assembly; andthe valve assembly is operative to restrict a backflow of the fluid through the inlet. 4. The system of claim 1, wherein: the permanent magnet is operative to move relative to the coil, the inner ferromagnetic core and the outer ferromagnetic core; andthe coil, the inner ferromagnetic core and the outer ferromagnetic core are fixed in position relative to each other. 5. The system of claim 4, wherein: the system further comprises a piston; andthe piston is operative to reciprocate linearly with the permanent magnet. 6. The system of claim 4, wherein the fluid is a gas. 7. The system of claim 1, wherein the permanent magnet is disposed between the inner ferromagnetic core and the outer ferromagnetic core. 8. A vacuum pressure system comprising: a linear actuator having a permanent magnet, a coil, an inner ferromagnetic core and an outer ferromagnetic core, the outer ferromagnetic core surrounding at least a portion of each of the permanent magnet, the coil, and the inner ferromagnetic core;a gas outlet pneumatically communicating with the linear actuator;a conduit having a gas permeable portion;the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear actuator forms vacuum pressure, draws gas from the conduit via the gas permeable portion, and expels the gas through the gas outlet; anda biasing member operative to bias the permanent magnet against a force caused by the electrical current being applied to the coil, which biasing member comprises a diaphragm that forms a seal with a housing, which housing includes a sidewall and an endwall, and which sidewall extends from the diaphragm to the endwall thereby sealingly defining an interior chamber within the housing in which the linear actuator is located;wherein the endwall includes an aperture that fluidly communicates with the gas outlet. 9. The system of claim 8, wherein: the conduit is operative to deliver fuel; andthe gas permeable portion is permeable with respect to oxygen such that, in operation, the linear actuator draws oxygen from the fuel in the conduit. 10. The system of claim 9, wherein, in operation, at least a portion of the linear actuator is cooled by the fuel. 11. The system of claim 8, wherein the gas permeable portion is a gas permeable membrane. 12. The system of claim 8, wherein: the permanent magnet is operative to move relative to the coil, the inner ferromagnetic core and the outer ferromagnetic core; andthe coil, the inner ferromagnetic core and the outer ferromagnetic core are fixed in position relative to each other. 13. The system of claim 8, wherein the permanent magnet is disposed between the inner ferromagnetic core and the outer ferromagnetic core. 14. A system comprising: a linear actuator having a permanent magnet, a coil, an inner ferromagnetic core and an outer ferromagnetic core, the outer ferromagnetic core surrounding at least a portion of each of the permanent magnet, the coil, and the inner ferromagnetic core;a gas outlet pneumatically communicating with the linear actuator;a fuel conduit having a gas peimeable portion;the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear actuator forms vacuum pressure, draws gas from the fuel conduit via the gas permeable portion, and expels the gas through the gas outlet; anda biasing member operative to bias the permanent magnet against a force caused by the electrical current being applied to the coil, which biasing member comprises a diaphragm that forms a seal with a housing, which housing includes a sidewall and an endwall, and which sidewall extends from the diaphragm to the endwall thereby sealingly defining an interior chamber within the housing in which the linear actuator is located;wherein the endwall includes an aperture that fluidly communicates with the gas outlet. 15. The system of claim 14, wherein, in operation, at least a portion of the linear actuator is cooled by the fuel. 16. The system of claim 14, wherein the gas permeable portion is a gas permeable membrane. 17. The system of claim 14, further comprising an engine operative to receive fuel from which gas has been extracted using the linear actuator. 18. The system of claim 17, wherein the engine is a gas turbine engine. 19. The system of claim 14, wherein the permanent magnet is disposed between the inner ferromagnetic core and the outer ferromagnetic core.

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Vacuum pressure systems

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