Control unit for activating compressor

Details Control unit for activating compressor Control unit for activating compressor

1992-08-27

1993-10-19

Tanner, Harry B.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62193, 622284, F25B 100

Patent

active

052534812

ABSTRACT:
The compressor activation control unit a rotation detecting means for detecting whether or not the motor is normally activated when the compressor is activated, a judging means for judging that the compressor interior is filled with a liquid refrigerant when the motor is not judged to be in the normal activating condition by the rotation detecting means, and a control means for step-driving the motor at a very slow-speed no more then one rotation per second through the driving circuit when the motor interior is judged to have been filled with the liquid refrigerant by the judging means.

REFERENCES:
patent: 3411313 (1968-11-01), Brown et al.
patent: 3744267 (1973-07-01), Norbeck
patent: 4090371 (1978-05-01), Keane
patent: 5088297 (1992-02-01), Maruyama et al.

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