| 摘要 |
A driving assembly for a motor vehicle engine or exhaust brake comprises a driveshaft (1) supporting a plurality of rocking levers (7) which control, through rocking lever stems (6), exhaust valves (11), each rocking lever (7) comprising a recess (15) housing a disc element, each disc element (16) being eccentrically integral with the rocking lever supporting driveshaft (1) and each disc element operatively engaging the stem (8) of the exhaust valve (10) in an overlapping relationship with respect to the eccentric assembly (14) driven by the rotary driveshaft (1).
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