Patent ID: 6700265
Filing Date: 2004-03-02
Classification: H02K

Abstract:
Eddy current electromagnetic retarder for reducing rotation of a crankshaft of a vehicle engine driven about an axis, said engine having a casing wherein said casing comprises a frontal wall stretching substantially in a plane perpendicular to said axis of said crankshaft, said crankshaft shaft has one end directed toward said frontal wall of said casing of said engine, the retarder being mounted overhangingly on said frontal wall of said casing of said engine via connecting means, the retarder comprising a rotor part which rotates coaxially with said crankshaft, a stator part coaxial with said crankshaft and secured to said frontal wall of said casing of said engine, an armature operatively attached to said rotor part and an inductor operatively attached to said stator part, said inductor being arranged on a stationary annular component of said stator part, facing said armature, wherein said rotor part has symmetry of revolution about said axis of said crankshaft so that said rotor part has a peripheral face facing a peripheral face of said stator part, said inductor of said retarder having at least one electromagnetic winding.