| 摘要 |
The invention relates to a fluid friction coupling having a housing, with outer plates being non-rotatingly associated therewith and further outer plates being associated therewith so as to be non-rotating in one direction only. The outer plates which are designed to be non-rotating in one direction of rotation only, have resilient tongues which are axially deflected from the plane face of the plate and which are laterally supported on faces of the webs with slots inserted into the housing. With their outer circumference, the plates are guided in the slots of the webs. In the direction of torque transmission, the movement of the housing is transferred via the side faces of the webs on to the resilient tongues and thus with the plates. The plates are driven by the housing. In the other direction of rotation, the housing may overtake the plates in that the webs slide with their slots over the resilient tongues. Between two adjoining outer plates and there are arranged inner plates which are driven as a result of the shearing viscous medium between the plates and which service to drive a hub. Thus, in the two possible directions of rotation, the coupling is capable of transmitting different torques or achieves a complete freewheeling effect in one direction of rotation.
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