| 摘要 |
Control device for a hydrostatic transmission, the set position of which is determined by the magnitude of a control pressure, the control pressure influencing, via a further line, another device, and/or a constant displacement pump, in the delivery line of which is arranged a measuring restriction, being connected to the transmission input shaft, the pressure built up in front of this measuring restriction and present in a branch line branching off ahead of the measuring restriction corresponding directly or, in a conditional manner indirectly, to the control pressure influencing the set position of the transmission, and the flow passing through the measuring restriction being fed by means of another line for further use, a drain valve 22 controlled by the pressure in the further line and opening when a minimum pressure is undershot being connected to the line 5 ahead of the measuring restriction 7. <IMAGE>
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