Compressor Suction Accumulator with Pre-Charged Oil

A compressor accumulator based on a different concept from a conventional suction accumulator is proposed.The new accumulator distinguishes itself from the conventional design in that it is pre~ charged with oil.Primary function of an accumulator being storage of excess refrigerant during certain operating conditions of the air conditioning system, this pre~charging may first seems odd, but from a compressor reliability standpoint it offers several major advantages compared to the conventional accumulator.An example of such an accumulator is introduced, operational characteristics observed, reliability evaluated and potential risks defined.