AXIAL FLOW COMPRESSOR

摘要

An axial flow compressor (10) comprises: a rotor (31) having rotor blades (34); a first pressing member (41) that is connected to one end surface of the rotor (31); a second pressing member (42) that is connected to the other end surface of the rotor (31); a rotor shaft (46) that passes through a first pressing member (41), the rotor (31) and second pressing member (42); and a nut (43) that fixes the first pressing member (41) and second (42) pressing member (42) with the rotor (31) held in between the first pressing member (41) and second pressing member (42). The rotor shaft (46) is made from a material having a linear expansion coefficient lower than the material used to at least partially constitute the rotor (31). The material used to at least partially constitute the rotor (31) may be aluminum or an aluminum alloy.