VALVE LIFTER OF INTERNAL COMBUSTION ENGINE, MANUFACTURING METHOD OF THE VALVE LIFTER AND MANUFACTURING DEVICE OF THE VALVE LIFTER

摘要

PROBLEM TO BE SOLVED: To provide a valve lifter of an internal combustion engine which can secure favorable lubrication performance between a skirt part of the valve lifter and a bore.;SOLUTION: A valve lifter of an internal combustion engine comprises a skirt part 17 which slides in a guide hole of a cylinder head, and a crown part 18 which is arranged at an axial one end side of the skirt part, and integrally has a crown face 18a. A constricted recessed part 20 is formed at an axial center area region of an external peripheral face 17a of the skirt part, and manganese phosphate coatings 21 are formed at the crown face, a chamfered part 18b of an external peripheral edge of the crown face, and a recessed surface of the external peripheral face of the skirt part.;COPYRIGHT: (C)2015,JPO&INPIT