Patent ID: 7305948

Claim:
A device ( 1 ) for changing the timing of an internal-combustion engine ( 2 ) comprising a camshaft adjuster ( 5 ) including a driving wheel ( 8 ) driven by a crankshaft ( 3 ) and a driven part ( 9 ) driving at least one camshaft ( 4 ), the driven part is driven by the driving wheel ( 8 ) via a hydraulic actuator ( 10 ), wherein the hydraulic actuator ( 10 ) is formed with at least one pair of hydraulic compression chambers ( 22 , 23 ) working against each other, and wherein a phase position between the crankshaft ( 3 ) and the at least one camshaft ( 4 ) can be changed via the actuator ( 10 ), either the driving wheel ( 8 ) or the driven part ( 9 ) surrounds a non-rotating bearing journal ( 6 ) and is supported directly on the non-rotating bearing journal ( 6 ), and the bearing journal ( 6 ) is mounted on a crankcase ( 35 ) of the engine.