| 摘要 |
A fluid coupling comprising a cylindrical housing having first and second vane supports secured to the opposite ends thereof. An input shaft is secured to the first vane support so that rotation of the input shaft causes rotation of the first and second vane supports and the housing. An output shaft rotatably extends through the second vane support into the interior of the housing and has a clutch support mounted thereon within said housing for rotation therewith. The housing has a first fluid compartment between the inner end of the first vane support and one end of the clutch support. The housing also has a second fluid compartment between the inner end of the second vane support and the clutch support. A plurality of movable vanes are provided on the inner ends of the first and second vane supports and are normally maintained in a retracted position but are movable into the fluid compartments upon the first and second vane supports being rotated at a pre-determined rotation so that the clutch support will also be rotated. A plurality of circumferentially spaced clutches are mounted on the clutch support and are normally maintained out of engagement with the housing but are movable into frictional engagement therewith upon the clutch support being rotated at a predetermined rate of rotation so that the clutch support and housing will be rotated at the same speed without any slippage therebetween. The movable vanes and the clutches may be moved mechanically, hydraulically or by centrifugal force.
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