Camshaft device of a motor vehicle internal combustion engine

Abstract

In a camshaft adjusting device of a motor vehicle internal combustion engine which has an electromagnetic braking unit that includes a stationary actuator having a first braking surface and an axially spaced second braking surface which is movable relative to the first braking surface, the braking unit further includes a brake disk which is functionally separate from the stationary actuator and is at least partially situated between the spaced braking surfaces of the actuator and connected to an adjusting input of the camshaft adjusting device.

What is claimed is: 
     
         1 . A camshaft adjusting device of a motor vehicle internal combustion engine having at least one electromagnetically actuated braking unit ( 10 ) that includes at least one stationary actuator ( 11 ) having at least a first braking surface ( 12 ) and a second braking surface ( 13 ) which is movable relative to the first braking surface ( 12 ), and a brake disk ( 14 ) which is functionally separate from the actuator ( 11 ) and at least partially situated between the first and second braking surfaces ( 12 ,  13 ) of the actuator ( 11 ) and connected to an adjusting input ( 15 ) of the camshaft adjusting device. 
     
     
         2 . shaft adjusting device according to  claim 1 , wherein the brake disk ( 14 ) has a density less than 5 g/cm 3 . 
     
     
         3 . The camshaft adjusting device according to  claim 1 , wherein the brake disk ( 14 ) is of a paramagnetic design. 
     
     
         4 . The camshaft adjusting device according to  claim 1 , including a summation gear ( 16 ) having a sun wheel ( 17 ) to which the brake disk ( 14 ) is fixedly connected for forming the adjusting input ( 15 ).