System for reducing oil migration from a transmission

摘要

A gear shroud is provided in close surrounding relationship to the drive gear of a centrifugal compressor such that the turbulence within the surrounding gear housing is substantially reduced and the resulting high speed flow of refrigerant is instead directed into an adjacent oil sump. In order to prevent localized churning in the sump and the resulting cavitation at the oil pump as might be caused by the high velocity flow of refrigeration gas from the gear shroud, a baffle is provided over the oil pump to divert the inflow of gas into other areas of the sump.