FEED PUMP

摘要

The invention relates to a feed pump (1; 2; 3) having a drive unit (9; 11), a coupling unit, and a pump unit (10) comprising a pump rotor (13), wherein the coupling unit (12) couples the drive unit (12) to the pump rotor (13), wherein the pump rotor (13) is axially displaceably mounted and has a predefined displacement stroke (d), and the coupling unit is designed as a magnetic coupling (12), wherein a pole arrangement of the magnetic coupling (2) is selected such that, when the pump rotor (13) is blocked, the pump rotor (13) is displaced back and forth along the displacement stroke (d) in order to release the blockage of the pump rotor (13).