SCROLL COMPRESSOR WITH BIFURCATED FLOW PATTERN

摘要

A scroll compressor includes various features that promote a bifurcated flowpattern of gas through a compressor shell to reduce oil entrainment. Afterentering the shell, some gas travels upward, which reduces the volume of gastraveling downward toward an oil sump. To accomplish this, the compressor'smotor can be surrounded by a sleeve having upper and lower apertures fordirecting the flow to the motor's upper and lower stator end turns. In someembodiments, a suction inlet is strategically positioned relative to two gaspassageways that are between the stator and the compressor shell. The inlet'sposition is such that one passageway receives incoming gas and divides theflow in opposite directions: upward and downward. The other passageway onlyconveys the gas upward. In addition, a suction baffle, a diffuser, astreamlined counterweight and/or a suction line oil trap can also help promotegas/oil separation or minimize oil entrainment.