Patent ID: 7322327

Claim:
A lubrication structure for a camshaft with variable valve timing, comprising: an advance hole including an advance flow passage formed in a camshaft body near a sprocket, an end of the camshaft being inserted into a continuously variable valve timing assembly on which the sprocket is provided; a retard hole including a retard flow passage formed in the camshaft body spaced horizontally from the advance hole; and a divergence flow passage, one end of which surface-contacts the camshaft and is extended to communicate with the retard hole at an upper surface of a mounting part of a cylinder head in which a slip surface is formed, and the other end of which communicates with the slip surface on which the camshaft lays via a counter bore, so as to prevent lubrication film from being broken by load of the sprocket which is connected to the camshaft at an engine idle state or at an initial stage of cold starting.