Patent ID: 8436483
Filing Date: 2013-05-07
Classification: F03B,F03D,F05B,F16C,H02K,Y02E

Abstract:
1. A power generation plant for obtaining electrical power from a water or air flow, comprising: a turbine; an electric generator, having a coaxial configuration of a rotor and a stator, said rotor being part of an annular support structure, which is directly driven by said turbine, and said stator being housed in a stator housing which is sealed with respect to the ambient medium, a wall area of said stator housing running in the area of the gap between said rotor and said stator so that the magnetic interaction between said rotor and said stator occurs through this wall area, wherein a plant controller and/or components of the power electronics and/or frequency inverters are housed inside said sealed stator housing; a mount for the annular support structure comprising said rotor, said mount being situated adjoining the gap between said rotor and said stator and being supported on the sealed stator housing; water-lubricated bearings being used for the mount and seal elements are associated with the mount, which seal the mount to an outside area against the penetration of abrasive materials, wherein labyrinth seals are used as the seal elements; and a flushing unit comprising a pump-filter unit for generating an outwardly directed permeation of the seal elements using filtered ambient medium.