| 摘要 |
The pump (20) in a pump duct has a driven rotor which has a protruding collar-shaped pump element (30) which has wave-shaped boundary surfaces (60) which extend radially from a hub (29), are cylindrically bounded, run in a form-fitting way in the cylindrical delivery region and whose highest points move by bearing, in a sealing manner, along the pump duct end faces (50). Sealing vanes pressed on the boundary surfaces and which follow the wave-like movement, provide sealing between inlet and outlet. <IMAGE>
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