SCROLL REFRIGERATION COMPRESSOR

摘要

The invention relates to a compressor including: a stationary volute (6) and a moving volute (9) each comprising a plate (7, 11) provided with a scroll (8, 12), said scrolls defining variable-volume compression chambers (13); a separator (16) sealingly mounted to the plate (7) of the stationary volute (6), such as to authorise a relative movement between the separator and the stationary volute; and a delivery chamber (21) defined by the separator and the sealed casing. The compressor also includes: a bypass passage (32) arranged to connect the delivery chamber (21) to an intermediate compression chamber (13b); a non-return device (34) comprising a sealing member that can move between positions for sealing and opening the bypass passage; and a housing (35) disposed between the separator (16) and the plate (7) of the stationary volute, comprising a first portion sealingly mounted in a recess (44) defined by the separator (16) and arranged in parallel to the longitudinal axis (A) of the compressor.