| 摘要 |
The invention relates to a pump arrangement comprising a vane pump (1) with a rotor (2) and an eccentric ring (3) surrounding the rotor (2), the eccentricity (e) thereof can be modified with respect to the rotor (2), also adjusting means (4) for modifying the eccentricity (e) of the eccentricity ring (3). According to the invention, the adjusting means (4) comprise two, preferably hydraulically actuatable pistons (4.1, 4.2), which are supported coaxially with respect to an axis (5) on the external peripheral surfaces opposite the eccentric ring (3), such that the strokes thereof cause the eccentric ring (3) to displace linearally along said axis (5). |
