SCROLL COMPRESSOR

PROBLEM TO BE SOLVED: To solve a problem wherein, in a scroll compressor, an operation stability is required under a low differential pressure condition more strongly with responding to demands for high efficiency in recent years, it is required to improve adherence properties of a fixed scroll and a turning scroll by increasing a differential pressure of a back pressure chamber, and a spring constant of a control spring in a back pressure control mechanism formed on the foxed scroll, thereby need to be increased, but contaminant such as metal powder is easily bitten by the back pressure control valve to causes a problem wherein the back pressure control mechanism does not function, a compressor has malfunction by that, and there occurs a serious problem of an apparatus on which the compressor is mounted. SOLUTION: A mesh foreign matter removing device 16 is installed in a restriction part of the back pressure control mechanism part, to avoid foreign matters from mixing into a back pressure control valve 13. COPYRIGHT: (C)2009,JPO&INPIT