Patent ID: 7687955

Claim:
A braking device for a camshaft adjuster ( 10 ) of an internal combustion engine, the camshaft adjuster having at least two adjustment inputs ( 13 , 14 ), with a respective braking element ( 31 , 32 ) being provided for each adjustment input ( 13 , 14 ) for braking the respective adjustment input ( 13 , 14 ), and means ( 42 , 43 , 44 , 45 , 36 , 37 , 38 , 39 , 48 , 49 ) for subjecting either the one or the other braking element ( 31 , 32 ) to magnetic flux depending on a direction of energization of an excitation coil arrangement ( 35 ), a separate magnetic circuit path ( 40 , 41 ) being provided for each adjustment input ( 13 , 14 ), with a magnetic flux path in the stator ( 39 ) common to both magnetic circuit paths ( 40 , 41 ).