| 摘要 |
<p>PURPOSE:To prevent the deterioration of the performance of refrigeration cycle by separating the lubrication oil well at the delivery side of a compressor, and to control the amount of lubrication oil in accordance with the operational state of compressor by cooling the lubrication oil when it will pass through an oil return path. CONSTITUTION:The refrigerator flown into an oil separation chamber 30 is branched into two directions shown by A and B, where the flow A is performed lubrication oil separation by means of an oil separator 31 then goes through a delivery tube 16 to the side of condenser. While the flow B will change the speed of flow when passing through a narrow section C surrounded by an end section of a buffle plate 34 and a side housing 22 to change the lubrication oil then flows through a delivery tube 16 to the side of the condenser. Consequently the deterioration of the performance of refrigeration cycle can be prevented while the lubrication oil is heat exchanged with the refrigerant at the low pressure side when passing through return oil paths 35, 44 to perform the cooling. In such a manner the discosity of the lubrication oil is always maintained to constant low temperature, while the amount of the lubrication oil to the returned to a suction chamber 14 is always controlled properly in accordance with the operational condition.</p> |
