| 摘要 |
A fluid coupling comprising: a pump having a pump shell and a plurality of impellers arranged in the pump shell; and a turbine disposed opposite said pump and having a turbine shell and a plurality of runners arranged in said turbine shell; wherein provision is made of a baffle mechanism which retractably protrudes into a fluid circulatory passage formed by the pump shell and the turbine shell, the baffle mechanism greatly protruding into the fluid circulatory passage in a state where the rotational speed is low and protruding little into the fluid circulatory passage in a state where the rotational speed is high.
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