Sound insulation in a refrigerant circuit

The muffler device for a refrigerant circuit with refrigerant containing refrigerant oil, comprising:

• a housing in which a first muffler chamber and a second muffler chamber are arranged, whereby the first muffler chamber has a first feed opening that can be connected to the refrigerant circuit and the second muffler chamber has a second discharge opening that can be connected to the refrigerant circuit, and a muffler partition is arranged between the first and second muffler chambers, said partition having at least one muffling pipe that connects the first muffler chamber to the second muffler chamber, and a first section of said pipe with a first opening projects into the first muffler chamber, whereby at least one oil-bypass opening is arranged in the muffler partition and it connects the first and second muffler chambers, wherein the first muffler chamber is an upper muffler chamber and the second muffler chamber is a lower second muffler chamber, whereby the first feed opening is configured as an upper feed opening that can be connected to the refrigerant circuit, and the second discharge opening is configured as a lower discharge opening that can be connected to the refrigerant circuit, and the muffler partition has at least one muffling pipe that connects the upper muffler chamber to the lower muffler chamber, and an upper section of said pipe with an upper opening projects into the upper muffler chamber, whereby at least one oil-bypass opening is arranged in the muffler partition and it connects the first and second muffler chambers.