| 摘要 |
A hermetic reciprocating compressor for a dual-evaporation refrigerating system has two suction passages (11,12) for receiving refrigerant from two independent evaporators, and includes a suction acoustic filter (2) disposed inside the hermetic housing (1) fluidly coupled to the compression reciprocating mechanism. Said suction acoustic filter (2) comprises: a pulsation attenuation chamber (21), outlet means (22) and inlet means in the form of a fluid selector device (3), which includes two inlet paths (31,32) and one outlet path (33). Said fluid selector device (3) is disposed between the at least two suction passages (11, 12) of the hermetic housing (1) and the suction acoustic filter (2). One inlet path (31) of the fluid selector device (3) is hermetically fluidly connected to the suction passage (11) of the hermetic housing (1) and the other inlet path (32) of the fluid selector device (3) is opened to the inside of the hermetic housing (1). Refrigerant entering the compressor through the suction passages (11,12) is preliminary selected by the fluid selector device (3) and, then, directed to the pulsation attenuation chamber (21) of the suction acoustic filter (2). |
