CENTRIFUGAL REFRIGERANT VAPOUR COMPRESSORS
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United States of America Patent
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Issued Date -
Dec 13, 2018
app pub date -
Jul 12, 2018
filing date -
Jul 12, 2018
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A centrifugal compressor for compressing a refrigerant vapour in a refrigeration cycle. The compressor comprises an impeller drive shaft supported by first and second radial bearings for rotation within the compressor housing and an impeller assembly including at least one centrifugal impeller wheel mounted on the impeller drive shaft to rotate with the impeller drive shaft. The first and second radial bearings are hydrodynamic fluid bearings in which the bearing fluid is the refrigerant vapour. The compressor further comprises a conduit for supplying a portion of the refrigerant vapour from the impeller assembly to the first and second fluid bearings.
First Claim
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International Classification(s)
- G05B:CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTION....
- F16C:SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT ME....
- F25B:REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBIN....
- F04C:ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DIS....
- G05D:SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC....
- F04D:NON-POSITIVE-DISPLACEMENT PUMPS
- F24F:AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION;....
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