Patent ID: 6657341
Filing Date: 2003-12-02
Classification: H02K

Abstract:
A device for axial stopping of a rotor, in particular a rotor of an electric motor, said rotor (5) having a support shaft (4) defining a rotation axis (4a) and two end faces (4b) transverse to said rotation axis (4a), the device comprisingat least one thrust unit for exerting a repulsive force on at least one of said end faces (4b) to axially stop said support shaft (4), said at least one thrust unit comprising: an abutment element (10) defining an abutment surface (8) adjacent to said at least one of said end faces (4b), fluid-emitting means (9) for forming a layer of fluid between said abutment surface (8) and said at least one of said end faces (4b), said layer of fluid maintaining an interstice (1a) between said abutment surface (8) and said at least one of said end faces (4b) and exerting said repulsive force, wherein said abutment element (10) comprises a foil element having at least one through hole (11) for passage of said fluid.