Vane cell pump for supplying fluids has a rotor, a lifting ring and vanes with each one moving lengthwise in a slot in a rotor

摘要

A spring (5) is designed as a split washer (6) and has a V- or Z-shaped profile. Each vane (3) has a groove in which each spring is fastened. The symmetric shape of the split washer makes it possible to fit the split washer without relying on position. The split washer fits so that it remains continuously under tension so as to exert an elastic force on a vane's rear side.