Compressor lubricating oil heater control

Details Compressor lubricating oil heater control Compressor lubricating oil heater control

1974-12-06

1978-01-03

Truhe, J. V.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

62 84, 62472, 184 622, 184104R, 219205, 417 14, 417 32, H05B 102

Patent

active

040668690

ABSTRACT:
A control for selectively energizing a heater provided to raise the temperature of lubricating oil of a compressor employed in a refrigeration unit. The control includes a thermostatically operated switch provided to sense a temperature indicative of lubricating oil temperature. The switch connects the heater to a source of electrical energy when the sensed temperature falls below a predetermined value and the compressor is inoperable. When the compressor is operable, the heater is rendered inoperable irrespective of the sensed temperature.

REFERENCES:
patent: 1775781 (1930-09-01), Parkins
patent: 2133394 (1938-10-01), Mortier
patent: 2388523 (1945-11-01), Buechel
patent: 3577741 (1971-05-01), Shaw

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