| 摘要 |
PURPOSE: Passage structure of a compressor is provided to secure reliability of the compressor by equally maintaining the oil content of a constant velocity compressor and an inverter compressor and reduce initial starting load in case of operating the inverter compressor during operation of the constant velocity compressor. CONSTITUTION: In a refrigerating cycle applying more than two compressors(102,103), passage structure of a compressor includes an oil-balancing pipe(105) connected to each compressor so that the oil capacity of each compressor balances, and a bypass pipe(107) connecting an inflow passage(101) in which refrigerant and oil come and a discharge passage(104) into which the refrigerant is discharged. A first solenoid valve(106), selectively shutting off the oil-balancing pipe, is installed to the oil-balancing pipe, to control oil capacity in each compressor. A second solenoid valve(108) is installed to the bypass pipe, to control pressure of the inflow passage and discharge passage.
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