CYLINDER HEAD COVER FOR INTERNAL COMBUSTION ENGINE HAVING OIL SEPARATOR

摘要

PROBLEM TO BE SOLVED: To provide a cylinder head cover having an oil separator, which has a simple construction for greatly reducing manufacturing labor. SOLUTION: The cylinder head cover for an internal combustion engine comprises the oil separator having a vortex chamber extending from the center side end (a proximal end) to the end far from the center (a distal end) in a longitudinal direction. The vortex chamber includes: a basically pipe-shaped wall extending in the longitudinal direction; a gas inlet arranged at the center side end of the vortex chamber and oriented to contact the basically pipe-shaped wall for blowing blow-by gas into the vortex chamber to form a spiral vortex gas flow along the basically pipe-shaped wall from the center side end to the end far from the center in the longitudinal direction; and a gas outlet opening. The gas outlet opening is arranged in a region of the end far from the center of the vortex chamber. COPYRIGHT: (C)2008,JPO&INPIT