| 摘要 |
PROBLEM TO BE SOLVED: To restrain the heat movement to an expansion mechanism from a compression mechanism, in an expander-integrated compressor. SOLUTION: This expander-integrated compressor 200A has a sealed vessel 1, the compression mechanism 2, the expansion mechanism 3, a shaft 5, an oil pump 6 and a partition member 31. The partition member 31 partitions an oil reservoir 25 into an upper tank 25a for positioning an oil suction port 62q and a lower tank 25b for positioning the expansion mechanism 3. A shape of a space for constituting the upper tank 25a is formed in reflection symmetry with a reference surface RP including the axis of the shaft 5 and the center of the oil suction port 62q as a symmetrical surface. In the partition member 31, an oil flow hole 31h allowing a flow of oil between the upper tank 25a and the lower tank 25b, is arranged by two in total in a position being the reflection symmetry with the reference surface RP as the symmetrical surface. COPYRIGHT: (C)2009,JPO&INPIT
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