Pump pref. for use in wind power generators with pressure chamber between rotor and stator continuously reduced in cross section by eccentric elements on rotor/stator

摘要

The pump has rotor (8) and stator (9) defining a pressure chamber (D) for the liquid medium to be pumped. The chamber extends with its length along the axis (A) of stator and rotor. Rotation of the rotor causes the chamber cross section to be reduced continuously along the axis via elements located on rotor and/or stator. The elements are e.g. eccentric rings (8.1) positioned behind each other. The is positioned centrally within the tubular rotor. The pump is used to operate a turbine, and is integrated in the generator mast (6).