| 摘要 |
A fluid friction clutch, in particular for the fan of the radiator of an internal combustion engine, is described. A valve element (22) controlling the clutch is operated via a solenoid control by means of a piston rod (24) which is guided coaxially in the drive shaft (12) of the clutch. The piston rod (24) includes an anchor (28), which is guided in the drive shaft (12). An actuator coil (34) is received in the magnet body (32), which is seated rotatably upon the drive shaft (12). The drive shaft (12) guiding the anchor (28) is provided with a non-magnetic separation gap (38).
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