| 摘要 |
In order to match the control times of the valves of an internal combustion engine to changing operating states, the angular position of the camshaft (10) with respect to the drive shaft (2) which is driven from the crankshaft is changed in that a control shaft (14) is rotated in the desired direction. This movement is transmitted via a pair of gearwheels (15, 16) to a housing (17) in which balance shafts (7,8) are mounted, which transmit, via bevel gears (5, 6) mounted on them, the rotational movement, induced by a further bevel gear (4) mounted on the drive shaft, to the camshaft via a further bevel gear (9). <IMAGE>
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