Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With condition responsive control of non-working fluid
Patent
1996-04-10
1997-05-06
Denion, Thomas E.
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
With condition responsive control of non-working fluid
184 6, 184 616, 184 621, 184 63, F01C 2104
Patent
active
056264704
ABSTRACT:
An apparatus for providing lubricant to thrust bearings and rotors of a rotary screw compressor. The apparatus includes a temperature sensor for sensing the temperature of the lubricant supplied to the rotors; a pressure sensor for measuring the pressure of the compressed gas discharged from the compressor; and a speed sensor for detecting the operating speed of the rotors. An electronic controller responsive to signals received from the temperature sensing means, the pressure sensing means and the speed sensing selectively opens and closes the second valve means to optimize the volume of lubricant supplied to the compressor rotors, and also controls the first valve to control the flow of lubricant to the thrust bearings. A pressure regulator controls the supply of lubricant to the thrust bearings in response to input signals received from the electronic controller. The regulator is flow connected to each thrust bearing by an independent lubricant supply line to thereby permit the pressure of one thrust bearing to be adjusted independent of the other thrust bearing.
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Denion Thomas E.
Gnibus Michael M.
Ingersoll-Rand Company
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