| 摘要 |
PROBLEM TO BE SOLVED: To reduce pressure pulsation accompanying flow rate fluctuation of suction fluid of each compression mechanism of a compressor in which one of a first compression mechanism and a second compression mechanism functions as a low stage side compression mechanism and another function as a high stage side compression mechanism. SOLUTION: The first compression mechanism (41) is composed of a scroll type compression mechanism. The second compression mechanism (42) includes cylinders (72, 92) having annular cylinder chambers (74, 94), annular pistons (70, 90) dividing cylinder chambers (74, 94) into outside compression chambers (75, 95) and inside compression chambers (76, 96), blades (73, 93) dividing the outside compression chambers (75, 95) and the inside compression chambers (76, 96) into first chambers and second chambers respectively, and is composed to compress fluid introduced to the outside compression chambers (75, 95) and the inside compression chambers (76, 96) through one of suction passages (78, 98) by the eccentric rotary motion of the pistons (70, 90) in each compression chambers (75, 76, 95, 96). COPYRIGHT: (C)2010,JPO&INPIT |
