초록 ▼

A rotordynamic system includes a vertically arranged motor, rotordynamic device and controller. The rotordynamic device is a centrifugal pump or compressor operated by the motor to drive a fluid from the input to the output. A liquid cooling system operates to maintain the controller and motor at a

A rotordynamic system includes a vertically arranged motor, rotordynamic device and controller. The rotordynamic device is a centrifugal pump or compressor operated by the motor to drive a fluid from the input to the output. A liquid cooling system operates to maintain the controller and motor at a desired operating temperature. Due to the liquid cooling system, the controller operates the motor at effectively any practical speed. The liquid cooling system is in heat exchange relationship with an oil system contained within the motor to distribute thermal energy therebetween to further increase thermal control of each.

대표청구항 ▼

A rotordynamic system includes a vertically arranged motor, rotordynamic device and controller. The rotordynamic device is a centrifugal pump or compressor operated by the motor to drive a fluid from the input to the output. A liquid cooling system operates to maintain the controller and motor at a

A rotordynamic system includes a vertically arranged motor, rotordynamic device and controller. The rotordynamic device is a centrifugal pump or compressor operated by the motor to drive a fluid from the input to the output. A liquid cooling system operates to maintain the controller and motor at a desired operating temperature. Due to the liquid cooling system, the controller operates the motor at effectively any practical speed. The liquid cooling system is in heat exchange relationship with an oil system contained within the motor to distribute thermal energy therebetween to further increase thermal control of each. ially extending array. 10. The tip treatment assembly as claimed in claim 8, further comprising end supports which support the oppositely disposed ends of the bars. 11. The tip treatment assembly as claimed in claim 10, in which the bars are formed separately from the end supports. 12. The tip treatment assembly as claimed in claim 10, in which the bars are formed integrally with the end supports. 13. In a gas turbine engine, a tip treatment assembly comprising: oppositely disposed end supports; a plurality of tip treatment bars supported at and disposed in a circumferentially extending array, each tip treatment bar comprising: oppositely disposed ends of the plurality of tip treatment bars are supported by the respective end supports; a side surface facing radially outwardly with respect to the circumferentially extending array; a cavity which opens at the side surface; and a damping material provided in the cavity. m camber position of 0.3-0.5, and a maximum thickness of 5-8% of a hub-side chord length or 7-12% of a shroud-side chord length. 12. The air conditioner according to claim 11, wherein the inner diameter of the shroud is 70-80% of the outer diameter of the blades. 13. The air conditioner according to claim 12, wherein seven to eleven blades are located at a predetermined separation from the hub. 14. The air conditioner according to claim 13, wherein the hub has a diameter which is less than the outer diameter of the blades. 15. The air conditioner according to claim 10, wherein the inner diameter of the shroud is 70-80% of the outer diameter of the blades. 16. The air conditioner according to claim 10, wherein the hub has a diameter which is less than the outer diameter of the blades. 17. The air conditioner according to claim 10, wherein seven to eleven blades are located at a predetermined separation from the hub. 18. The air conditioner according to claim 10, wherein the hub has a diameter which is less than the outer diameter of the blades and hub-side ends of the blades extend in a direction away from said hub.