Cylinder

In industrial compressors, the cylinder is the central pressure vessel where gas compression occurs. It provides a sealed chamber for the piston to move linearly, converting mechanical energy into compressed air or gas energy through volume reduction. Cylinders must withstand cyclic pressure loads, thermal stresses from compression heat, and mechanical wear from piston movement while maintaining precise dimensional tolerances for efficient sealing and minimal leakage.

The cylinder operates on the reciprocating compression principle: as the piston moves downward during the intake stroke, it creates vacuum that draws gas through inlet valves. During the compression stroke, upward piston movement reduces chamber volume, increasing gas pressure until discharge valves open at predetermined pressure levels. The cylinder's smooth bore surface minimizes friction while maintaining gas-tight sealing with piston rings.