ROTARY TWO-STAGE COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a two-stage compressor capable of reducing fluid loss in piping and manufacturable easily. SOLUTION: In this rotary two-stage compressor, a compression element for low pressure and a compression element for high pressure are installed in a closed container, and an intermediate space for the compression element for low pressure connected to a compression chamber is formed in the closed container. At least three approximately circular through-holes are formed in the closed container. The compressor also comprises a suction pipe for low pressure passed through the through-holes and communicating with the compression element for low pressure, a discharge pipe for intermediate pressure passed through the through-holes and communicating with the intermediate space, and a suction pipe for high pressure passed through the through-holes and communicating with the compression element for high pressure. The through-holes are arranged in a row along the longitudinal direction of a rotating shaft. COPYRIGHT: (C)2006,JPO&NCIPI