Pumps – Condition responsive control of pump drive motor – Responsive to pump lubricant – sealant – or coolant condition
Patent
1980-06-25
1982-11-09
Croyle, Carlton R.
Pumps
Condition responsive control of pump drive motor
Responsive to pump lubricant, sealant, or coolant condition
417 19, 417 29, 417 32, 417 44, 417295, 417302, F04B 4906
Patent
active
043582478
ABSTRACT:
An oil cooled compressor including a compressor member driven by a motor, an oil tank receiving oil therein and removing oil from the gas discharging out of the compressor member, an oil supplying device for supplying the oil in the oil tank into the compressor member, and a pressure responsive control device for controlling the operation of the compressor member. There are provided a first temperature detector detecting the temperature of the oil, a second temperature detector detecting the temperature of the gas, and a temperature responsive control device restricting the function of the pressure responsive control device in response to the temperatures detected by the first and second temperature detectors.
REFERENCES:
patent: 2137221 (1938-11-01), Aikman
patent: 3411313 (1968-11-01), Brown et al.
patent: 3602610 (1971-08-01), Bloom
patent: 3788776 (1974-01-01), Post et al.
patent: 4227862 (1980-10-01), Andrew et al.
patent: 4289461 (1981-09-01), van Oorschot et al.
Suzuki Toshitsugu
Tuchida Masayuki
Croyle Carlton R.
Hitachi , Ltd.
Look Edward
Tokico Ltd.
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