| 摘要 |
In order to avoid rocking levers or the like between the retarding cam (8) of a desmodromic valve gear on the one hand and the valve (2) on the other, a mounted frame (15), permitting longitudinal movements parallel to the valve axis (4) is provided, which encompasses the retarding cam (8) and in the direction of the valve axis (4) is linked to the movement of the valve stem (3). <IMAGE>
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