Patent ID: 8113159

Claim:
A camshaft adjuster for a concentric camshaft assembly having inner and outer shafts for an internal combustion engine, the camshaft adjuster comprises: a stator connected to a timing gear; a rotor located within the stator and adapted to be connected to the outer camshaft, the rotor including a plurality of vanes that extend into spaces created between inwardly directed projections of the stator which contact the rotor to define first and second sets of chambers on each side of the vanes; front and rear sidewalls connected to the stator which form the front and rear walls of the chambers; a drive adapter which extends through the rotor from a front of the camshaft adjuster to a position beyond the rear sidewall of the camshaft adjuster and is adapted to engage the inner camshaft; an outer cover connected between the stator and the drive adapter, wherein radial loads acting on the timing gear are transmitted radially from the stator to the rotor and into the outer camshaft.