Refrigeration – Air compressor – cooler and expander type – Motor-type expander
Patent
1994-04-05
1995-11-21
Wayner, William E.
Refrigeration
Air compressor, cooler and expander type
Motor-type expander
62116, 60671, 417405, F25B 100, F01K 2500
Patent
active
054676134
ABSTRACT:
A single-fluid two-phase turbine expander is employed in a compression-expansion refrigeration system. The turbine expander has its rotor mechanically coupled to the drive train of the associated refrigeration compressor, which can be a high-speed centrifugal compressor or a geared screw compressor. The turbine is a straight-forward design, with a rotor disk having peripheral vanes, and a nozzle block that houses the disk and contains a group of nozzles that are directed at the vanes. The nozzles each have an inlet orifice plate and a converging/diverging internal geometry that permits supersonic discharge. The vanes are shaped for impulse reaction and have a sharp exit bend to prevent further flashing of the two-phase mixture in the rotor.
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Carrier Corporation
Wayner William E.
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