| 摘要 |
<p>PURPOSE:To take the axial force by means of the inner stress of a shaft and a part of a casing for reducing the weight of a whole device by supporting the side of a changeover valve of the shaft by a taper bearing with a point of action taken opposite to the input/output side. CONSTITUTION:The point of action of a taper bearing 26 is taken opposite to the input/outut side. The inner race of a radial bearing 6 is fitted in a stayed part of a shaft 5 in contact with the side of a rotor 8, while the outer race is firm fixed on a front casing 1. During operation, the valve main body 15 is pushed to the rotor 8, and the pushing force is transmitted to a bearing 26 through the rotor 8, the inner race of the bearing 6, and a shaft 5. Meanwhile, a reaction force as an arrow L shows given in a rear casing 2 is also transmitted to the bearing 26, and balanced with the pushing force as an arrow R shows. Thus, the front and the rear casing 1 and 2 and a cam ring 3 can be made in a thin construction.</p> |
