Patent ID: 8985974
Filing Date: 2015-03-24
Classification: F04C

Abstract:
1. A vane compressor, comprising: a stator; a rotor; and vanes for dividing an interstice between the stator and the rotor into a plurality of compression chambers; wherein: the stator is equipped, towards an outside from a center thereof, with a first circular inner peripheral surface, a circular outer peripheral surface, and a second circular inner peripheral surface arranged concentrically about the center, a ring-shaped space being formed between the circular outer peripheral surface and the second circular inner peripheral surface; the rotor is equipped with a cylinder centered about a center thereof, and with at least one pair of vane attachment grooves that extend through the cylinder in a radial direction thereof; the cylinder is arranged in an eccentric state in the ring-shaped space of the stator, and divides the ring-shaped space into an outer peripheral-side space and an inner peripheral-side space; the vanes are slidably attached in the respective vane attachment grooves; the vanes are respectively equipped with first comb-tooth parts and second comb-tooth parts formed along a radial direction of the cylinder of the rotor, at a predetermined distance from the center of the rotor; the first comb-tooth parts are arranged to an inside of the first circular inner peripheral surface, and the second comb-tooth parts divide the outer peripheral-side space and the inner peripheral-side space respectively, into the plurality of compression chambers within the ring-shaped space; and due to centrifugal force acting on the vanes in association with rotation of the rotor, at least the first comb-tooth parts become pressed against the facing first circular inner peripheral surface, and the vanes, guided by the first circular inner peripheral surface, slide reciprocatinqly along the vane attachment grooves.