Air conditioning compressor protection device

Details Air conditioning compressor protection device Air conditioning compressor protection device

1991-12-12

1992-09-15

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

310 68C, 361 27, F25B 100

Patent

active

051467631

ABSTRACT:
A method of locating a limit switch (10) on a compressor (12) utilizes thermography for determining the optimum location thereof. A thermograph is produced for normal and abnormal operating modes of the compressor (12). High temperature gradients in the thermograph indicate high rates of temperature increase during compressor failure modes for selecting an optimum location for the limit switch. A bimetal switch (10) is utilized to establish a cut-out temperature for preventing operation of the compressor (12) and a cut-in temperature lower than the cut-out temperature for automatically closing to resume operation of the compressor (12) when returned to normal temperatures.

REFERENCES:
patent: 2946203 (1960-07-01), Carver
patent: 3911943 (1975-10-01), Athey et al.

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