Patent ID: 7390164
Filing Date: 2008-06-24
Classification: F04D

Abstract:
1. A fixing structure for fixing a rotor to a rotor shaft, comprising: a rotor; a rotor shaft fixed to the rotor; a bolt hole for fastening the rotor shaft and the rotor to each other; fastening means for fastening the rotor shaft and the rotor to each other by using the bolt hole; a rotor side contact surface formed on a rotor side so that the rotor side contact surface is perpendicular to an axial direction; a rotor shaft side contact surface formed on a rotor shaft side and held in contact with the rotor side contact surface; and a spot facing portion recessed from the rotor shaft side contact surface, characterized in that: a gap is formed between the rotor side contact surface and the spot facing portion as a result of the fastening; and the bolt hole is open on the gap.