| 摘要 |
In order to achieve load-dependent control of a hydraulic feed pump (3), the control chamber (14) of the constant-flow valve (1) used can be connected via a connecting line (19) to the controller (18) of the pump (3). The piston (5) of the constant-flow valve (1) is provided at the end (17) facing the control chamber (14) with a radial groove (16). The annular gap formed by the radial groove (16) can be connected, by opening a control line Z debouching into the control chamber (14), to the controller (18), the feed pump (3) being switched off as a result of the change in the pressure difference between the inflow line (2) and the connection line (19) in the controller (18). <IMAGE>
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