Compressor and method of detecting quantity of mixture of coolan

Details Compressor and method of detecting quantity of mixture of coolan Compressor and method of detecting quantity of mixture of coolan

1990-10-31

1991-10-01

Smith, Leonard E.

Pumps

With condition responsive control of coolant or lubricant

417 13, 184 63, 184 64, F04B 3904

Patent

active

050528971

ABSTRACT:
A compressor has a motor and a compressor mechanism connected to the motor. The motor has a coil and is lubricated with lubricant. The compressor mechanism sucks and compresses low-pressure coolant and discharges high-pressure coolant. The compressor comprises a unit for preheating the lubricant, and a unit for detecting line-to-line impedance of the coil of the motor to know the quantity of a mixture of liquified coolant and the lubricant, and controlling activation of the preheating unit and of the compressor according to a result of the detection.

REFERENCES:
patent: 2453584 (1948-11-01), Newton
patent: 3876037 (1975-04-01), Rath
patent: 4066869 (1978-01-01), Apaloo et al.
patent: 4745893 (1988-05-01), Atherton

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