| 摘要 |
PURPOSE:To obtain sufficient cooling effect of a motor coiled-wire by attaching an oil reservoir case, which covers a lower motor coiled-wire and has an oil drain hole at the lower part thereof, to a motor and accumulating refrigerator oil in the case. CONSTITUTION:An oil reservoir case 12 is attached to a compressing element 3 as that the case covers a lower motor coiled-wire 6. During operation, refrigerator oil is sucked up by an oil suction pump 10, drained from the upper part 11 of a crankcase, and flows into the case from a gutter part 14 of the oil reservoir case 12. Since the entire body of the lower motor coiled wire 6 is therefore kept immersed in refrigerator oil of relatively low temperature, the coiled-wire 6 can be cooled sufficiently by the heat-exchanging operation with refrigerator oil having high heat capacity.
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