| 摘要 |
<p>A controller for controlling a medium flow fed from a supply to at least one hydrostatic or aerostatic pocket of a bearing, a threaded spindle nut or a guide, having a housing and having pressure chambers which are separated by a control element, movable against the force of a spring element, and of which a first pressure chamber, subjected to a first pressure level, is directly connected to the medium supply, a second pressure chamber, subjected to a lower, second pressure level, is connected to the medium supply via a first flow resistance, and a third pressure chamber, which is subjected to a third pressure level which corresponds to that in the pocket, is connected to the pocket, a control element forming a variable second flow resistance is arranged between the second and third pressure chambers influencing the medium flow to the pocket and whose magnitude is raised by the action of the force of the first pressure chamber but is lowered by the action of the spring force and by the actions of the forces of the second and third pressure chambers. The housing has a bearing surface, comprising a passage orifice for the medium flow, with the aid of which the controller bears against a mating surface assigned to the bearing, the threaded spindle nut or the guide, thus creating a direct medium connection between controller and pocket and/or medium supply.</p> |
