Patent ID: 6331743
Filing Date: 2001-12-18
Classification: B60H,F01P,F04B,F04D,H02K

Abstract:
A magnetically driven fan clutch comprising:a plastic mount connected to a stationary part of a vehicle and having a central hub for the clutch;a first rotatable plastic member mounted for rotation and carrying an energizable magnetic field;bearings on the central hub mounting the first rotatable plastic members for rotation about the central hub;a series of coils mounted on the first rotatable plastic member for connection to an electrical source to be energized to provide the energizable magnetic field;a slip ring carried by the stationary mount for providing electrical connection to the rotatable series of coils;a second rotatable driven plastic member mounted for rotation relative to the first rotatable member;magnetic elements on the driven plastic member to be magnetically coupled to the energizable magnetic field to rotate the driven plastic member; andplastic fan blades mounted on the driven plastic member for being driven by a magnetic clutch formed by the energizable magnetic field and the magnetic elements.