| 摘要 |
PURPOSE: To provide a valve lifter made of fiber-reinforced resin for a valve system, said valve lifter can keep a gap to a shim properly, has high load resistance, durability high enough against cracking and breaking at the time of use, and light weight. CONSTITUTION: A rib 2f for shim reception which is a concentrically projected part is formed in one side of the ceiling part 2a of a valve lifter made of fiber- reinforced resin and formed by injection molding, a valve stem pressing part 2c to press a valve stem end part of the ceiling part 2a of the valve lifter 2 is provided with a highly wear-resistant and fatigue-resistant disk-like chip 9, and at the same time, the diameter of the chip is made to be 0.5-0.95 times as wide as that of the rib 2f for shim reception formed in the ceiling part 2a, and the position of a gate 2h by injection molding is set to be the center of the ceiling part 2a. |
