| 摘要 |
The pump has an internal rotor (2) on a drive shaft (1). A carrier (3) let into the drive shaft lies against the flanks (4) of the rotor, which it drives. Plastic elements (6) are fitted between the drive shaft and the rotor, at least in the direction of rotation (5), an the carriers when the pump is stopped. The play is less than the longitudinal expansion of the plastic elements when the pump is in use.
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