Phase adjustment system for shaft concentric with chain drive wheel has hydraulic motor with vanes and eccentric rotor with drive pinion inside housing with sprocket teeth

摘要

The pinion (27) attached to the rotor (25) of the hydraulic motor (24) meshes with a ring gear (13) attached to the camshaft (10). Oil is fed to the two chambers of the hydraulic motor through galleries (22,23) in the motor housing (28). The oil enters and leaves through circumferential galleries (20,21) bounded on the inside by the camshaft. The assembly includes ball bearings (17,26).