Patent ID: 8790099

Claim:
A rotary compressor, comprising: a casing ( 1 ), a cylinder block ( 2 ), a rotor ( 3 ), a sliding plate ( 4 ), and a discharge valve ( 7 ), wherein a suction port ( 6 ) and a discharge port ( 8 ) are provided on the casing ( 1 ); a main shaft ( 5 ) as a rotating center axis of the cylinder block ( 2 ) deflects from a rotating center axis of the rotor ( 3 ), so that an outer circumference surface of the rotor ( 3 ) is inscribed with an inner circumference surface of the cylinder block ( 2 ); a head portion of the sliding plate ( 4 ) is in a column shape and a main body of the sliding plate ( 4 ) is in a plate shape, the head portion of the sliding plate ( 4 ) is embedded in a cylinder body of the cylinder block ( 2 ), two ends of the column-shaped head portion of the sliding plate ( 4 ) slightly extend outside the main body of the sliding plate ( 4 ) so as to form two trunnion shafts that are fixed in a radial direction when the sliding plate ( 4 ) swings and prevents the sliding plate ( 4 ) from sliding out of the cylinder body of the cylinder block, the main body of the sliding plate ( 4 ) extends into a radial sliding plate slot of the rotor ( 3 ); the discharge valve ( 7 ) is provided on the outer circumference of the rotor ( 3 ) in front of a rotating direction of the sliding plate ( 4 ); a cylinder block inlet ( 12 ) is provided on the cylinder block ( 2 ) in rear of the rotating direction of the sliding plate ( 4 ); and the sliding plate ( 4 ) and the inscribed point separate a crescent working volume between the inner circumference surface of the cylinder block ( 2 ) and the outer circumference surface of the rotor ( 3 ) into a suction chamber and a discharge chamber; the main shaft ( 5 ) is supported on an end of the casing ( 1 ) by a double support bearing ( 11 ), two axial ends of the cylinder block ( 2 ) are supported on the casing ( 1 ) by two bracket bearings ( 9 ).