Sliding-vane rotary compressor

摘要

A sliding-vane rotary compressor includes a cylinder having a plurality of discharge holes aligned in an axial direction of the cylinder, and a corresponding number of discharge valves normally closing the respective discharge holes. Respective openings of the discharge valves are limited in such a manner as to increase progressively in a direction from a front side to a rear side of the cylinder to thereby produce a pressure difference between the front and rear sides of the cylinder. With this pressure difference, the cylinder is normally urged toward one side and hence is unlikely to oscillate in the axial direction. The compressor thus constructed is capable of operating silently without generating an unpleasant oscillating noise.