| 摘要 |
A flow-distributing valve unit which is actuated electrically and hydraulically is disclosed, the improvement consisting in a double-acting piston distributor reciprocable in a chamber to which fluid intake and fluid discharge conduits are connected, the fluid intake ducts having fixed throttling passageways whereas variable width passageways are provided for the fluid discharge ducts. The widths of the discharge passageways for the fluid are varied by electromagnetic controls. A flow-distributing valve is integral with the double-acting piston mechanism and is connected with a valve actuator which can either be manual or moved by a servomechanism.
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