A cylinder assembly for compressor, A compressor and A apparatus having refrigerant cycle circuit

The present invention is a that a pair discharge simplify the structure of the cylinder assembly while still structure further has the effect of the discharge pulsation reduction with a muffler to reduce the discharge pulsations of the device having a compressor cylinder assembly, the compressor and the refrigerant circuit to provide. Thus, the cylinder assembly of the present invention, the cylinder block having a discharge muffler of the pair of the one surface is open; And coupled to the cylinder block so as to cover the open side of the discharge muffler and the pair of frames; Inclusion and has a compositional feature that the coolant groove is formed in the corresponding mating surface portion of the cylinder block and at least one frame passage to flow through the discharge muffler of the pair. In addition, the compressor according to the present invention, has a configuration in which the characteristics applied to the cylinder assembly, and, the apparatus having a refrigerant circuit in accordance with the present invention has a compositional feature that the compressor application. According to the above configuration, while the discharge pulsation of the refrigerant Reduction rate is further raised, to simplify the parts of the cylinder assembly forms the assembly improved productivity and production cost reduction of the compressor, and also, it is possible to realize the miniaturization of the compressor.