Oil separator unit

An oil separator unit for use in an oil separaton and oil return system for the compressor means of a refrigeration system;

• said oil separator unit comprising a unitary oil separator and oil accumulator vessel adapted to receive the high pressure refrigerant-oil mixture discharged from the compressor means;
• said vessel including an upper receiving chamber having a cylindrical wall with a compressor discharge conduit tangentially connected in its upper portion, a separated oil outlet at the bottom of said receiving chamber and a separated refrigerant intake column centrally disposed in said receiving chamber and having a refrigerant vapor outlet at the top thereof, said intake column and receiving chamber wall defining an annular chamber therebetween to receive the high pressure gaseous mixture and effect oil and refrigerant separation therein by centrifugal vortex action, foraminous oil collecting and separating means lining the cylindrical wall of said annular chamber in the vortex flow path of said gaseous mixture, and vapor deflector means adjacent to said separated oil outlet and in open communication with said annular chamber and refrigerant intake chamber for regenerating vortex separating action in said vapor in the final separation zone of said receiving chamber.