Valve drive for stroke valve with cam-actuated slip lever - has pivot bearing, to permit lever movement in plane of desired pivot movement only, lever moving into groove in support element

摘要

The end section (10) of the lever (7) has flat side walls which extend parallel to the movement direction of the lever. It has a convex support surface (11), which is curved in this direction only, between the side walls. The lever end section moves into a groove (16) on the support element (13). The groove base forms the concave counter surface (12), and the support element is secured against turning. The side walls of the groove face those of the lever end section. The lever consists completely of flat material. The other lever end section (9) has a pressure face, to transmit lifting forces to the valve (5). ADVANTAGE - Side guide for lever does not require additional parts, and is not tied to certain transmission ratios.