Method for controlling the operation of two-speed, refrigerant m

Details Method for controlling the operation of two-speed, refrigerant m Method for controlling the operation of two-speed, refrigerant m

1974-10-04

1976-03-09

Freeh, William L.

Pumps

Processes

417410, F04B 1700

Patent

active

039429121

ABSTRACT:
A method is disclosed for controlling the operation of a two speed electrical motor used to drive a hermetic refrigerant compressor so as to attain an overall motor compressor efficiency at low speed operation which is equal to or greater than the overall motor compressor efficiency at high speed operation.

REFERENCES:
patent: 3008629 (1961-11-01), Gerteis
patent: 3380650 (1968-04-01), Drummond

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