For a rolling piston type of rotary compressor, oil supply system consisting of individual lubrication elements such as pumps, oil passages, and sliding surfaces has been modeled by employing equivalent electric circuit. Numerical solutions of the oil network model include total oil flow rate into the shaft hole, oil flow rates to various sliding surfaces, and oil leaks through roller end clearances. Also, analysis has been made on the oil content in the suction and compression chambers and in discharge refrigerant. Validation of the numerical simulation has been made by measurement of the total oil flow rate into the shaft.
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