Vane-cell pump for fuel transport, has multiple vanes with stator that are surrounded by external ring, and spring of vane-cell pump vanes against external ring

摘要

Vane-cell pump has multiple vanes (11) with stator (10) that are surrounded by an external ring. The vane-cell pump has a spring (12) which presses the vanes against the external ring. The front sides of the stator have recesses. The spring has multiple turns and a cylindrical shape.