Patent ID: 6920856

Claim:
A camshaft mounting structure for a cylinder head, the structure comprising: a first journal part which is placed at the frontal cylinder head of an engine, is designed to support a camshaft, and also accommodates a bolt coupling hole for securing said cylinder head and a cylinder block, wherein said cylinder head is installed with a plurality of oil holes communicating with a plurality of oil passages for connecting with an actuator of the variable valve timing apparatus; a metal bearing which is mounted on said semi-circular shaped first journal part with a length identical to the maximum length of said first journal part in relation to the axial direction of said camshaft is formed with a plurality of connecting holes communicating with said plurality of oil holes; and a plurality of oil grooves formed at said camshaft along the circumferential direction for respectively communicating with said plurality of connecting holes, wherein the widths of said oil grooves are smaller than each diameter of said holes, and the diameters of said oil holes and said connecting holes are substantially the same in size.