| 摘要 |
Pumps, in particular sliding vane or roller cell pumps, comprising a rotor with vanes or rollers, side plates or housing walls, a flexible closed stroke ring along which the vanes or rollers slide undergoing radial displacement and thus running in slots in the rotor, whereby the stroke ring has at least one, preferably four cams (3, 5, 9 and 11) arranged on the outer circumference thereof. |
