Refrigerating apparatus

Details Refrigerating apparatus Refrigerating apparatus

1996-01-22

1998-09-01

Tanner, Harry B.

Refrigeration

Automatic control

Withdrawing or adding refrigerant from or to normally closed...

62502, 62513, F25B 100

Patent

active

057994978

ABSTRACT:
A refrigerating apparatus employs a mixture of coolants and a coolant controller for controlling a ratio between the coolants to adjust refrigerating capacity during a refrigerating operation. The apparatus has a compressor whose revolution speed is controlled to provide required refrigerating capacity. When the revolution speed of the compressor decreases below a lower set value or rises above an upper set value, the coolant controller controls the ratio between the coolants.

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patent: 2951349 (1960-09-01), Etherington
patent: 2951350 (1960-09-01), Etherington et al.
patent: 2977773 (1961-04-01), De Kanter
patent: 3212284 (1965-10-01), Henderson
patent: 3668883 (1972-06-01), Ruff et al.
patent: 4325224 (1982-04-01), Howland
patent: 4718250 (1988-01-01), Warren
patent: 4722195 (1988-02-01), Suzuki et al.
patent: 5012651 (1991-05-01), Nakatani et al.
patent: 5170636 (1992-12-01), Hitosugi
patent: 5186012 (1993-02-01), Czachorski et al.

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