| 摘要 |
<p>PURPOSE: To prevent reduction in a flexural resonance point, critical speed and transmission torque of a driving shaft of a refrigerant compressor by increasing the moment of inertia without enlarging an outside diameter and weight of an inertial member. CONSTITUTION: By press work, the sector shaped voids penetratingly passing in the shaft direction of a driving shaft are formed at equal intervals in the same circumferential shape in a bottom wall part 20e with the driving shaft of a refrigerant compressor as the center. A part sector-shaped part 20f) of the bottom wall part 20e existing in the voids before the press work constitutes a first bending part 30 bent on the driving shaft of the refrigerant compressor and a second bending part 31 extendedly arranged inward in the radial direction of its rear driving shaft as well as in the direction almost perpendicular to the driving shaft.</p> |
