| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas compressor capable of preventing occurrence of chattering of a vane and preventing a vane tip from being worn by excessively increasing back pressure and being strongly slid with a cylinder inner peripheral surface.SOLUTION: In a dredge groove 30 formed in a rear side block 15, a dredge groove tip part 30a on the front side in a rotor rotational direction is enlarged, so that in the end of a compression process of refrigerant gas, a communication cross sectional area A from a communication state to a state where a bottom part 23a of a vane groove 23 is separated, with rotation of a rotor 11, from the dredge groove tip end part 30a (radial end part 30a2) on the front side of the rotor rotational direction of the dredge groove 30 is made enlarged.</p> |
