ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

To provide a rotary compressor easy to manufacture and highly reliable, and a refrigeration cycle apparatus equipped with this compressor. The rotary compressor (2) includes: a hermetic casing (11); an electric motor (12) accommodated in the hermetic casing and including a stator (18) and a rotor (19); and a compression mechanism (13) coupled to the rotor by a rotating shaft (14). The compression mechanism includes a cylinder (32) including a cylindrical-shaped cylinder chamber (31), and a blade groove (64) opening to the cylinder chamber, a roller (33) eccentrically rotatable in the cylinder chamber, and a blade (61) provided in the blade groove, contacting an outer peripheral surface of the roller, and disposed to be reciprocally movable along with eccentric rotation of the roller in a radial direction of the cylinder chamber and dividing the cylinder chamber into a suction chamber and a compression chamber. The blade groove has sliding surfaces inclined with respect to an axial direction of the rotating shaft, and guiding reciprocal movement of the blade.