Refrigeration – Air compressor – cooler and expander type
Reexamination Certificate
2008-01-29
2008-01-29
Ali, Mohammad M. (Department: 3744)
Refrigeration
Air compressor, cooler and expander type
C062S402000
Reexamination Certificate
active
10524877
ABSTRACT:
An air refrigerant cooling apparatus has magnetic bearings with high reliability and high efficiency. The air refrigerant cooling apparatus includes a motor having a first magnetic bearing and a second magnetic bearing for supporting a shaft, a compressor and an expansion turbine. The compressor is connected to the shaft and separated from the first magnetic bearing by a first labyrinth. The expansion turbine is connected to the shaft and separated from the second magnetic bearing by a second labyrinth. Pressure differences are generated between spaces where the first magnetic bearing and the second magnetic bearing are provided and respective inlet of the compressor and outlet of the expansion turbine by an external pressure outside the motor.
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Igawa Hiroshi
Kikuchi Shigemitsu
Okuda Seiichi
Ali Mohammad M.
Berner Ken
Hauptman Ben
International Center for Environmental Technology Transfer
Mitsubishi Heavy Industries Ltd.
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