| 摘要 |
The hydraulic units drive, via rolling components fitted on the connecting rods, work in conjunction with a cam to produce a relative linear or rotational movement. The three units are fed with pressure medium by a commutation device regulated by integrated directional valves. Each valve comprises a valve body connected to a connecting rod and having recesses and channels in its cover surface. A hole which accommodates the valve body similarly has channels and recesses in its surface. The first and second hydraulic units commutate pressure medium to the third unit by means of their directional valves during a third of the cam prophile, after which the third and the first hydraulic units commutate pressure medium to the second unit, and so on. |
