Refrigerant injection into oil for sound reduction

Details Refrigerant injection into oil for sound reduction Refrigerant injection into oil for sound reduction

F - Mech Eng,Light,Heat,Weapons

04

B

62/30

F04B 39/00 (2006.01)

Patent

CA 1318140

ABSTRACT THE DISCLOSURE In a low side hermetic compressor, a small portion of the compressed refrigerant gas is diverted and discharged into the oil sump through an ORIFICE into the upper level of the oil in the sump. This results in a supersaturated solution of refrigerant in oil in the upper level which DRIVES the refrigerant out of the oil, thereby creating froth which provides sound reduction without disturbing the lower level which remains stratified. A check valve is provided for preventing reverse flow while requiring a predetermined pressure differential for diversion.

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