MOVABLE VALVE SYSTEM LUBRICATING DEVICE FOR INTERNAL- COMBUSTION ENGINE

摘要

PURPOSE:To lubricate a sliding and contacting surface between a cam and a rocker arm excellently even in an engine starting or low-speed revolution region by soaking the sliding and contacting surface into lubricating oil in an oil tank surrounded by an oil storage bank. CONSTITUTION:The sliding and contacting surface A between the cam 3 and the follower 4a of the rocker arm is surrounded by the oil storage bank 20 integrally erected to the upper surface of a cylinder head 1 in the upper surface of the cylinder head 1, and the oil tank 21 is formed into the oil storage bank 20. The height of the oil storage bank 20 is made higher than the sliding and contacting suface A between the cam and the follower 4a at the maximum point of the lifting of the cam 3.