| 摘要 |
This invention is a device wherein a centrifugally operated valve operating automatically to open or close with the fluctuation of the number of revolutions of the driven side is provided for each fluid path connecting a torque transmitting chamber and a fluid pooling chamber which are component parts of a fluid coupling so that the amount of the fluid in the transmitting chamber may be automatically increased or decreased to keep the number of revolutions of the driven side substantially constant. Thus the number of revolutions of the driven side can be kept as constant as possible irrespective of the fluctuation of the load or the fluctuation of the rotation of the driving side.
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