Patent ID: 7438034

Claim:
A camshaft adjusting device comprising an adjusting mechanism ( 17 ) for adjusting phase positions of first and second camshafts ( 21 ′, 22 ′) with respect to a crankshaft driving the camshaft adjusting device, said adjusting mechanism ( 17 ) having a first output ( 21 ) connected to the first camshaft ( 21 ′) and a second output ( 22 ) connected to the second camshaft ( 22 ′) and also an adjustment input ( 18 ) connected to the adjusting mechanism ( 17 ) and a drive input ( 11 ) for connection to the crankshaft so as to be driven by the crankshaft, said adjusting mechanism having a first transmission ratio for changing the phase angle between the drive input ( 11 ) and the first output ( 21 ) and a second transmission ratio for changing the phase angle between the drive input ( 11 ) and the second output ( 22 ) for changing the phase angles between the drive input ( 11 ) and the first and second camshafts ( 21 ′, 22 ′) at different rates when the adjustment input ( 28 ) is actuated, the adjustment mechanism ( 17 ) further including a first driven internal gearwheel ( 15 ) with an internal toothing for driving the first camshaft ( 21 ), and a second driven internal gearwheel ( 16 ), which is spaced apart axially from the first driven internal gear wheel ( 15 ) and has an internal toothing for driving the second camshaft ( 22 ), and a driving internal gearwheel ( 12 ) connected to the drive input ( 11 ) and having an internal toothing in driving connection with the first and second driven internal gearwheels ( 15 , 16 ).