VARIABLE CAPACITY ROTARY COMPRESSOR

摘要

A variable displacement rotary compressor is provided to prevent slip of eccentric bushes in executing compressing operation, thereby preventing a noise due to a collision and improving the durability. A housing has two compression chambers different in volume. Two eccentric cams(41,51) are installed at an outer surface of the rotary shaft in the two compression chambers respectively. Two eccentric bushes(42,52) are rotatively mounted at outer surfaces of the two eccentric cams. A cylindrical connecting part(43) connects the two eccentric bushes integratedly and has a fixing groove(82) long in a rotary direction. A fixing pin(81) is protruded from the rotary shaft and is fixed by both ends of the fixing groove so that the two eccentric bushes rotate in a state of being eccentric contrarily to each other or in an eccentricity-released state. Restraining members(91,92) are installed at both ends of the fixing groove to buff and restrain the fixing pin. The restraining members have the elasticity for banding an outer surface of the fixing pin.