| 摘要 |
PROBLEM TO BE SOLVED: To prevent, in a gas compressor, over-compression in an inside of a compression chamber and prevent or inhibit generation of pulsation caused by discharge.SOLUTION: A gas compressor includes: a compressor body 60 in which compression chambers 43 divided by a rotor 50, a cylinder 40, both side blocks 20, 30 and vanes 58 are formed to perform suction, compression and discharge only in one cycle in a period of one rotation of the rotor 50, and a cyclone block 70 which a refrigerant gas G passes through and separates refrigerator oil R. In the cylinder 40, a second discharge part 43 is formed for discharging the refrigerant gas G when pressure inside the compression chamber 43 reaches discharge pressure in a stage before the compression chamber 43 faces a first discharge part 45, a communication passage 39 is formed for bringing a discharge chamber 45a of the first discharge part 45 in communication with a discharge chamber 46a of the second discharge part 46, and a discharge passage 38 is formed for bringing the first discharge part 45 in communication with the cyclone block 70. |
