Compressor

The invention provides a compressor. According to one aspect of the present invention, a compressor, which compresses and discharges a refrigerant sucked into a cylinder tube, comprises: a cylindrical cylinder tube; and a piston that is disposed inside the cylinder tube and reciprocates in the axial direction, the cylinder tube and the piston may be formed of different materials from each other. 本发明提供一种压缩机。本发明的一方面(aspect)的压缩机是对吸入到缸筒内部的制冷剂进行压缩并吐出，其包括：圆筒形状的缸筒；以及活塞，其配置于所述缸筒的内部，并且在轴向上进行往复运动，所述缸筒和所述活塞可以由彼此不同的材料形成。