Suction accumulator pre-charged with oil

An accumulator comprising:

• a housing having an interior defining a volume;
• a baffle located in said interior and dividing said interior into an upper portion and a lower portion;
• at lest one hole in said baffle providing fluid communication between said upper portion and said lower portion, wherein said baffle includes an annular portion with said at least one hole located therein, a cylindrical section extending both above and below said annular portion and having a closed end located above said annular portion;
• means for supplying refrigerant to said upper portion;
• means for withdrawing refrigerant from said lower portion and passing said withdrawn refrigerant from said housing;
• said means for withdrawing refrigerant including a pipe extending into said housing at an intermediate point of said lower portion and though at least a portion of said lower portion of said interior and having an upwardly extending open end located in said interior and a metering port in said pipe at a location in said lower portion such that 30% of said volume is at a level no higher than said metering port.

An accumulator comprising:

• a housing having an interior defining a volume;
• a baffle located in said interior and dividing said interior into an upper portion and a lower portion;
• at least one hole in said baffle providing fluid communication between said upper portion and said lower portion wherein said at least one hole is overlain by an annular screen;
• means for supplying refrigerant to said upper portion;
• means for withdrawing refrigerant from said lower portion and passing said withdrawn refrigerant from said housing;
• said means for withdrawing refrigerant including a pipe extending into said housing at an intermediate point of said lower portion and through at least a portion of said lower portion of said interior and having an upwardly extending open end located in said interior and a metering port in said pipe at a location in said lower portion such that 30% of said volume is at a level no higher than said metering port.

A hermetic compressor having an accumulator secured thereto, said accumulator comprising:

• a housing having an interior defining a volume;
• a baffle located in said interior and dividing said interior into an upper portion and a lower portion;
• at least one hole in said baffle providing fluid communication between said upper portion and said lower portion;
• means for supplying refrigerant to said upper portion;
• means for withdrawing refrigerant from said lower portion and passing said withdrawn refrigerant from said housing;
• said means for withdrawing refrigerant including a pipe extending into said housing at an intermediate point of said lower portion and through at least a portion of said lower portion of said interior and having an upwardly extending open end located in said interior and a metering port in said pipe at a location in said lower portion such that 30% of said volume is at a level no higher than said metering port;
• and
• said means for withdrawing fluidly connected to said compressor for supplying refrigerant thereto and said intermediate point corresponds to the location at which said means for withdrawing refrigerant is fluidly connected to said compressor.