Patent ID: 6634476
Filing Date: 2003-10-21
Classification: F16D,H02K

Abstract:
A magnet type fan clutch apparatus including an electromagnetic clutch formed of a clutch rotor supported on a driving shaft, an exciting coil provided in the interior of the clutch rotor and supported on an outer part, and an armature held longitudinally movably on the portion of a driven side housing supported rotatably via a bearing on the clutch rotor which is on the side of the exciting coil; and a magnet coupling which has a permanent magnet rotary body, to which a fan is fixed, supported rotatably via a bearing on a driven shaft made integral with the driven side housing, and a disc provided with a conductor opposed to the permanent magnet rotary body with a narrow clearance left therebetween, and mounted on the driven shaft, and which is formed so that the permanent magnet rotary body and disc are rotated together owing to an attraction working between the permanent magnet and the conductor, the magnet coupling being ON/OFF controlled by the electromagnetic clutch.