The primary function of the piston is to endure the combustion pressure within the cylinder and effectively transmit this force to the crankshaft via the piston pin and connecting rod. In a piston refrigeration compressor, the piston is pivotal as it utilizes its reciprocating motion within the cylinder to instigate periodic shifts in the cylinder's working volume. This mechanical process is essential in achieving the suction, compression, and discharge of the refrigerant gas, thereby ensuring optimal efficiency and function of the refrigeration system.












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