| 摘要 |
PROBLEM TO BE SOLVED: To provide a multistage compressor in which an intermediate-pressure gas refrigerant compressed by a low-stage compression element can be supplied to a high-stage compression element without using a pipe, and a suction loss when a working fluid is sucked into the high-stage compression element can be reduced.SOLUTION: A multistage compressor 4 has: a low-stage compression element 17 which compresses a low-pressure working fluid to intermediate pressure; a high-stage compression element 18 which compresses an intermediate-pressure working fluid to high pressure; and a partitioning plate 19 which partitions a clearance between the low-stage compression element 17 and the high-stage compression element 18. The partitioning plate 19 is formed by connecting a plurality of divided partitioning plates 19a, 19b, an in-partitioning plate intermediate-pressure space 27 to which the intermediate-pressure working fluid compressed by the low-stage compression element 17 is discharged is formed in the partitioning plate 19, and a suction port 29 which causes the high-stage compression element 18 to suck the working fluid in the in-partitioning plate intermediate-pressure space 27 is formed at an end face of the partitioning plate 19 which opposes the high-stage compression element 18. |
