[특허]Bearing cooling arrangement for air cycle machine

Bearing cooling arrangement for air cycle machine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25D-009/00 F04B-017/00
출원번호	US-0562162 (1990-08-03)
발명자 / 주소	McAuliffe Christopher (Windsor CT) Dziorny Paul J. (Manchester CT)
출원인 / 주소	United Technologies Corporation (Hartford CT 02)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

In air cycle machines with hydrodynamic bearings, the mass flow rate of coolant (36) passing through a series of bearings (32, 28, 30) is metered before the coolant passes through the final bearing (30). The final bearing operates at an internal pressure equivalent to that present in the region (72) into which coolant exhausts after exiting the final bearing. Since coolant in the final bearing is at the same pressure as air immediately downstream from the bearing, no rotating seal is required at the outlet of the bearing cooling flowpath.

대표청구항 ▼

An air cycle machine comprising: a. an axially extending hollow shaft; b. a compressor mounted to a central portion of the shaft and having inlet means for receiving a pressurized fluid to be compressed therein; c. a turbine mounted to an first end portion of the shaft and having inlet means for receiving a pressurized fluid to be expanded therein, said turbine operatively connected to said compressor by a shaft extending therethrough whereby said compressor is driven through the shaft by said turbine; d. a fan mounted to a second end portion of the shaft; e. first hydrodynamic bearing means for supporting the shaft disposed about the shaft at a location between said compressor and said turbine; f. second hydrodynamic bearing means for supporting the shaft disposed about the shaft at a location between said compressor and said fan; and g. a bearing cooling circuit having an inlet for receiving a portion of the compressed fluid to be expanded from the inlet means of said turbine as a coolant, an outlet for discharging said coolant directly into the inlet means of said compressor means, and a coolant flowpath therebetween traversed by said coolant, the cooling flowpath having a first portion extending from the inlet to said cooling circuit through said first hydrodynamic bearing means, a second portion extending within the hollow shaft, and a third portion extending through said second hydrodynamic bearing means to the outlet of said cooling circuit, the coolant passing in series through the first portion, thence the second portion, and thence the third portion of the cooling flowpath of said cooling circuit.

이 특허를 인용한 특허 (45)

Rosen, Seth E.; Beers, Craig M.; Pragluski, Robert M.; Rowley, Michael P., Air cycle machine air bearing shaft.
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Beers, Craig M.; Merritt, Brent J., Air cycle machine bearing cooling inlet plate.
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Moniz, Thomas Ory; Orlando, Robert Joseph, Bearing assembly and method of assembling the same.
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Colson, Darryl A.; Rosen, Seth E.; Chrabascz, Eric, Bearing cooling control in an air cycle machine.
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Colson, Darryl A; Rosen, Seth E.; Chrabascz, Eric, Bearing cooling control in an air cycle machine.
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Gee, Mark; Saville, Marshall; Hurley, Keith Alan, Bearing cooling system for flexible shaft turbomachine.
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Rosen, Seth E.; Struziak, Ronald M., Bearing sleeve.
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Colson, Darryl A.; Merrritt, Brent J., Fan rotor for air cycle machine.
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Elpern,David G.; Menon,Sunil K.; Morando,Alex; Parthasarathy,Girija; Schryver,Jon E., Method for predicting air cycle machine turbine ice formation and shedding and journal bearing wear.
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Nims Robert A., Microturbine cooling system.
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Hipsky, Harold W.; Army, Jr., Donald E.; Kline, Erin G.; Bruno, Louis J.; Millot, Christina W., Power augmentation for an air cycle machine of an environmental control system.
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Rosen, Seth E.; Beers, Craig M., Seal shaft for controlling fluid flow within an air cycle machine.
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Saville, Marshall; Elpern, David G., Three bearing flexible shaft for high speed turbomachinery.
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Beers, Craig M.; Merritt, Brent J.; Richardson, Victoria S., Thrust bearing cooling path.
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Beers, Craig M.; Merritt, Brent J.; Richardson, Victoria S., Thrust bearing cooling path.
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Colson, Darryl A.; Hipsky, Harold W., Turbine nozzle for air cycle machine.
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Merritt, Brent J.; Hipsky, Harold W., Turbine rotor for air cycle machine.
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Rosen, Seth E.; Beers, Craig M., Turbine shroud for air cycle machine.
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Chen, Seung-bae; Kim, Jin-tae; Her, Jae-youl, Turbo generator and fuel cell system having the same.
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Army, Donald E.; McAuliffe, Christopher, Variable-sized cooling air flow path.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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연합인증

Bearing cooling arrangement for air cycle machine 원문보기

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이 특허를 인용한 특허 (45)

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Bearing cooling arrangement for air cycle machine 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (45)

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