Cam Design as Related to Valve Train Dynamics 520208
A METHOD of cam design whereby the cam contour can be computed to produce a definite, predictable valve motion is explained here.
The design principles set forth are concerned primarily with cams for high-speed engines having overhead valves and clearance regulators.
The valve gear in such engines is relatively flexible, compared with that for heavy, slow-speed engines.
Furthermore, the actuating forces in the valve train at high speeds, in combination with this inherent flexibility, result in a valve motion that bears no simple relationship to cam contour.
