Patent ID: 6349688
Filing Date: 2002-02-26
Classification: B21C,F01L,F02B

Abstract:
A direct lever system for an engine, the system comprising:a cylinder bore, the cylinder bore having an outer end; a cam assembly having at least one cam surface and an axis inward of the outer end of the cylinder bore; two valves having opened and closed positions; two valve stem assemblies, each including a valve stem that is attached to a valve; a cylinder head substantially enclosing the outer end, the valves being seated in the cylinder head; and two pivotably mounted valve operating levers, each lever including a first lever arm having a cam follower in contact with the at least one cam surface, a pivot axis about which the lever pivots, and a valve arm, where movement of the lever caused by the at least one cam surface causes the lever to pivot and the valve arm to depress the valve stem and thus open the valve.