Compressor

A compressor for compressing a refrigerant, having at least one piston and at least one cylinder block, and a compressor housing which encloses the compressor at least partially, the at least one piston being arranged to move to and fro in a cylinder arranged at least partially in the at least one cylinder block or in the compressor housing, the compressor further comprising an impedance tube, an outlet for outputting the refrigerant from the compressor, and a shut-off,

• wherein for the cylinder, the compressor has an associated high pressure volume and a common high pressure volume in the compressor housing downstream of the associated high pressure volume, into which the associated high pressure volume opens, the common high pressure volume being connected to the outlet, and the impedance tube is arranged in a connection between the common high pressure volume and the outlet, or forms a connection between the common high pressure volume and the outlet,
• wherein the impedance tube acts as a vibration damper of pulsations or vibrations, wherein, to dampen the pulsations or vibrations, the impedance tube extends into the common high pressure volume and has one end residing in the common high pressure volume defining an internal volume inside the common high pressure volume that is surrounded by the common high pressure volume,
• wherein to avoid feedback, at another end thereof, the impedance tube is connectable to a volume downstream of the impedance tube and downstream of the outlet for outputting the refrigerant from the compressor, and
• wherein the shut-off apparatus is connected to the another end of the impedance tube opposite the one end and is located between the impedance tube and the volume downstream of the impedance tube.