| 摘要 |
PROBLEM TO BE SOLVED: To enable to fully heighten a cooling efficiency of a fixed scroll, rotating scroll and electric motor, and improve durability and life thereof respectively. SOLUTION: A fan side duct 24 with an inlet 25 for a cooling inlet is installed behind a casing 1. An upper side duct 26 extending forward from the fan side duct 24 is installed at the upper side of the casing 1, and an electric motor 7 is cooled from the outside by the upper side duct 26. A lower side duct 27 extending forward from a fan side duct 24 under the casing 1 is provided, and an oil reservoir 3 is cooled from its outside by the lower duct 27. A scroll side duct 28 with outlet 29 of the cooling wind is provided on the rear side of a fixed scroll 6 and the rear side of the fixed scroll 6 is cooled with the scroll side duct 28. An oil pump 20 forcedly feeding oil 4 into the rear side, etc., of the rotating scroll 14 is installed in an oil reservoir 3 also to cool the rotating scroll 14.
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