| 摘要 |
<p>The distributor incorporates a regulating balance in the form of a plunger (14) which moves in a bore (13) under the effect of a pressure differential created by inlet pressure on one face and a load pressure on the other. In a zone adjacent to the first end (12) of the plunger the bore wall and/or the plunger has at least one calibrated passage (30) designed to establish a link between the plunger end and a lateral orifice (21) in the bore when the plunger is forced into its end position by an extreme load above the normal inlet pressure. This ensures a flow of fluid at a low rate to the orifice and provides for a slow movement of the hydraulic receiver controlled by the distributor.</p> |
