Patent ID: 6239519
Filing Date: 2001-05-29
Classification: H02K

Abstract:
An electrical machine formed as claw pole generator, comprising a ring-shaped stator provided with windings; a claw pole rotor rotatably arranged inside an opening of said stator, said claw pole rotor having a rotor shaft, pole discs, and an exciter coil arranged coaxially to said rotor shaft, said claw pole rotor also having a peripheral surface provided with a plurality of claw poles which overlap said exciter pole and engage in a finger-like manner with groove-shaped intermediate spaces; at least one axially acting fan means arranged at an end side of said claw pole rotor in a region of an outer periphery; and a plurality of honeycombed structures located in said intermediate spaces and extending in a longitudinal direction of said intermediate spaces so that a cooling medium flows through said honeycomb structures, said honeycomb structures extending outwardly beyond end sides of said pole disks and being inclined opposite to a rotary direction of said rotor.