| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency (COP) in a gas compressor.SOLUTION: A compression chamber 43A includes a compressor body 60 constituted to execute only one cycle of suction, compression and discharge during a time of one rotation of a rotor 50, and a housing 10 covering the compressor body 60. A cross-section contour shape of an inner peripheral face 41 of a cylinder 40 is formed so that (1) a region where a volume of the compression chamber 43A is abruptly increased, (2) a region where the volume of the compression chamber 43A is abruptly decreased, (3) a region where a volume reduction rate of the compression chamber 43A becomes smaller than that in the region of (2), and (4) a region where the volume reduction rate of the compression chamber 43A becomes larger than that in the region of (3) are successively connected during the time of one rotation of the rotor 50. A second discharge portion 46 is formed corresponding to the region (rotational angle range α) of (3) having a gentle compression speed, besides a first discharge portion 45 formed corresponding to the region of (4). |
