Protection circuit for a dual source refrigeration unit

Details Protection circuit for a dual source refrigeration unit Protection circuit for a dual source refrigeration unit

1977-06-03

1979-01-16

Wayner, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62228, F25B 4900

Patent

active

041342720

ABSTRACT:
Apparatus and a method for providing an electrical circuit to protect the internal components of a dual source combination motor-generator refrigeration unit having an internal power source and an external power source. The circuit is comprised of switching apparatus, a voltage sensitive relay, a high pressure switch, a time delay relay, an electrically operated clutch, a speed control solenoid and other electrical components to protect the engine, motor-generator, vapor compression refrigeration system and the electrical components sensitive to voltage fluctuations from various malfunctions including loss of engine speed, high refrigerant pressure, voltage fluctuations and operation of the compressor in an improper mode.

REFERENCES:
patent: 2740904 (1956-04-01), Goss
patent: 2907182 (1959-10-01), Kuklinski
patent: 3043115 (1962-07-01), Harter
patent: 3335325 (1967-08-01), Elpers

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