Patent ID: 6915887
Filing Date: 2005-07-12
Classification: F01P,F04D,F16D,H02K

Abstract:
1. Drive member ( 1 ) for a water pump of the cooling-water circuit of an internal combustion engine, with a drive wheel ( 7 ) and a shaft ( 4 ) which is coupled to the water pump, characterized in that, for the transmission of torque between the drive wheel ( 7 ) and the shaft ( 4 ), an electromagnetically actuable friction-disk clutch ( 9 , 10 , 11 , 12 ) and a second clutch device in the form of an eddy-current clutch ( 14 ) are provided, the latter taking up the shaft ( 4 ) when the friction-disk clutch ( 9 , 10 , 11 , 12 ) is out of engagement, and wherein the drive wheel is designed as a V-belt pulley ( 7 ), the friction-disk clutch ( 9 , 10 , 11 , 12 ) and the eddy-current clutch ( 14 ) lying axially in the region of the width (b) of the V-belt pulley ( 7 ).