A spool valve is provided which improves the responsiveness of the object to be hydraulically controlled, such as a V-belt type continuously variable transmission, and which improves the overall safety. The spool valve includes a spool inserted in a spool insertion hole formed in a valve body, The spool is moved by an electric motor via a ball-screw to a first position where the input port communicates with the output port, while the output port is not in communication with the drain port, and to a second position where the input port is not in communication with the output port, while the output port communicates with the drain port.


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    Title :

    SPOOL VALVE


    Contributors:

    Publication date :

    2017-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / F16K VALVES , Ventile



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