Rotary compressor with synchronous turning between cylinder block and rotor

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).