VANE COMPRESSOR WITH DISPLACEMENT ADJUSTING MECHANISM

摘要

a rotor (2) slidably carrying a plurality of radial vanes (6) and rotatably disposed in a cylinder (1) and a pair of side blocks (7) disposed on opposite ends of said cylinder (1); means defining a plurality of compression chambers (8); an adjustment member (22) rotatably disposed in one of the side blocks (7) for adjusting a compression starting position; resilient means (25) for urging the adjustment member (22) to turn in one direction; means defining a pressure chamber (28) communicating with a high pressure chamber (11) through an orifice (34); a first control valve (35) operative in response to the pressure in a low pressure chamber (10); a second control valve (43) operative in response to an external signal.