| 摘要 |
<p>A hydraulic system including two or more hydraulic components separately operable by means of predetermined mutually arbitrary quantities of pressure medium supplied from a common source of the latter via a common feed conduit through respective individually regulatable quantity control valves. Each quantity control valve incorporates a throttle arrangement and a control slide which are adapted to supply a maximum quantity of pressure medium to their hydraulic component by balancing the pressure on the control slide in opposite axial directions. The control slide in a first axial direction is under a pressure load in front of the throttle arrangement and in an opposite axial direction under a pressure load behind the throttle arrangement plus the pressure exerted by a pressure spring. The control slide is provided with a throttle flange cooperable with a flow opening in a slide guide whereby the supply of pressure medium to the region in front of the throttle arrangement is regulated depending upon the balance position of the control slide with increasing throttling by excess pressure in the first axial direction. Furthermore, the pressure medium of the system is employed as a remote control medium by effecting a controlled "tapping off" of pressure medium from the quantity control valve via a remote control valve and an associated single conduit connection to a remotely disposed pressure discharge source. The balance position of the control slide is thus regulated and the supply of pressure medium to the hydraulic component is controlled according to need.</p> |
