| 摘要 |
Provided is a gas compressor that is able to prevent excess compression from occurring in a compression chamber. A region (a proximal section (48)) in which the inner peripheral surface (40a) of a cylinder (40) and the outer peripheral (50a) of a rotor (50) are closest within a range of one circuit of the axis of a rotary shaft (51) has at least two discharge holes for discharging a refrigerant gas compressed in the compression chamber (43) on the upstream side in the direction of rotation of the rotor (50) in the circumferential direction of the inner peripheral surface (40a) of the cylinder (40). The discharge holes are linked on the discharge chamber (14) side, without providing a discharge valve to a first discharge hole (45a), which is on the side closest to the proximal section (48), among the discharge holes, said discharge valve opening when the pressure of a medium compressed in the compression chamber has reached a prescribed discharge pressure, and closing when the prescribed discharge pressure has not been reached. |
