| 摘要 |
<p>The distributor, embodying two mutually displaceable primary (35) and secondary (38, 43) members, includes a reaction device (37, 39, 40) operated by externally modulated reaction pressures, the reaction device having opposite inlets connected to independent circuits (22, 23) extending from corresponding outlets of valve means having OR logic function (24) actuated by the primary member of the distributor (21) in a phase lead with respect to the internal valve means (1, 2; 1', 2') of the distributor.</p> |
