ROTARY COMPRESSOR

摘要

Disclosed is a rotary compressor having two compression capacities according to the two different rotational directions of the driving shaft (300). The rotary compressor includes: a driving shaft (300) with an eccentric portion (310) on which a roller (400) rotates along an inner circumference of the cylinder (100), a vane (110) installed in the cylinder (100) to contact the roller (400) continuously, an upper (210) and one lower (220) bearing respectively disposed on top and bottom of the cylinder (100), a disc shaped valve (820) rotates between two positions and has at least one suction port (710 or 720) for selectively supplying refrigerant inside the compression chamber (100) according to the rotational direction of the driving shaft (300) and at least one discharge port (621 or 611) communicating with the compression chamber (100) for discharging the compressed refrigerant. The refrigerant is supplied through a communication hole (102) to a port (730) formed on the outer valve (810).