Valve operating device for internal combustion engines

摘要

The valve operating device includes a main toggle lever (2) for operating inlet and outlet valves and high speed toggle lever (4) with a slide face (41) which is made from alloyed tool steel with carbide deposits to produce a hardness of HRC55 and above on the slide face. The hard covering is produced by physical steam deposit on the high speed toggle lever. A device for interrupting the drive device of the high speed toggle lever, with the main toggle lever, may have a lost motion mechanism (11) which can be for the lost motion of the high speed lever, and is mounted in the high speed lever when the machine runs at low speed.