|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||62/402 ; 417/406 ; 417/407|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 45 인용 특허 : 0|
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.
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 shaf...