| 摘要 |
PURPOSE:To provide a screw type one-stage hydraulic machine having a high performance pressure variation rate, by providing, between each adjacent rotors, vibration restraining members which are substantially made into rolling contact with the rotors so that the rotors are restrained from radially vibrating. CONSTITUTION:Vibration restraining discs 100, 200 are arranged at the shafts ends 1d, 2d of a male and female rotors, respectively. Both vibration restraining discs 100, 200 are formed in such a shape and a size that they are rotated by a timing gear at the same speed as that of the rotors 1, 2 and are substantially or nearly made into rolling contact with the rotors 1, 2. By suitably selecting the size of the two discs, load may be subjected to in the direction of increasing the distance between the axes of rotors 1, 2 so that a radial gap in a bearing may be apparently reduced, thereby radial vibration may be prevented. |
