Rotary compressor with pressing mechanism and adjusting mechanism to vary a magnitude of a load in response to a pressure difference between the suction fluid and discharge fluid

A rotary compressor comprising:

• a cylinder including a base end side with an end plate part having a front surface, the cylinder defining a cylinder chamber;
• a piston including a base end side with an end plate part having a front surface that faces the front surface of the end plate part of the cylinder across the cylinder chamber, the piston being disposed in an eccentric manner relative to the cylinder in the cylinder chamber;
• a blade dividing the cylinder chamber into a high pressure chamber and a low pressure chamber with a volume of the high pressure chamber and a volume of the low pressure chamber being varied by relative eccentric movement between the cylinder and the piston;
• a pressing mechanism operatively coupled to one of the cylinder and the piston that constitutes a pushing side member, with the pushing side member being selectively pushable towards the end plate part of the other of the cylinder and the piston that constitutes a receiving side member;
• and
• an adjusting mechanism varying a magnitude of a load which is applied in a direction towards the end plate part of the receiving side member to the pushing side member in response to a pressure differential between a suction fluid drawn in to the low pressure chamber and a discharge fluid discharged from the high pressure chamber.