Piston compressor

摘要

A piston compressor in which a smooth linear reciprocal motion of the piston is maintained for a long period of time. A rotary motion of a swash plate or cam plate 20 is converted to a linear reciprocal motion of a piston 22 via a shoe 23 to compress a gas. The piston 22 has a neck 36 having a shoe seating surface 36a provided with a sprayed layer of a metal material to slide on a convex spherical surface 23a of the shoe 23.