COMPRESSOR BLADE WITH CHAMFERED ROOT

摘要

An axial flow compressor comprising: a rotor blade and a stator blade to intake air from an atmosphere and compress the air; a wheel to secure the rotor blade; a casing to secure the stator blade; wherein a wheel dovetail slot is machined on an outer circumferential surface of the wheel at an angle with respect to the rotational axis of the axial flow compressor; and a rotor blade dovetail is machined on an inner circumferential side of the rotor blade to be fitted to the wheel dovetail slot, whereby a chamfered surface is formed on at least one of an upstream side and a downstream side of the rotor blade dovetail.