The present invention relates to a hydraulic auxiliary valve device (1) adapted to be connected to a hydraulic main valve (20) on a work vehicle, which work vehicle comprises a hydraulic system comprising a pump and a tank, the auxiliary valve device (1) comprises: —a first motor port connection (4A) and a second motor port connection (4B) arranged to be connected to a first motor port and a second motor port, respectively, on a double acting hydraulic motor, in particular a double acting hydraulic cylinder, —a pump lead-through (2), which connects the pump input port connection (2A) of the auxiliary valve device (1) to the pump connection output port (2B); —a tank lead-through (3), which connects the tank input port connection (3A) of the auxiliary valve device (1) to the tank connection output port (3B); and —a control valve (IA) provided with two open positions, which control valve (1A) in the first open position connects the pump input port connection (2A) to the first motor port connection (4A) and the tank input port connection (3A) to the second motor port connection (4B), and in the second open position connects the pump input port connection (2A) to the second motor port connection (4B) and the tank input port connection (3A) to the first motor port connection (4A).


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    Title :

    HYDRAULIC MAIN VALVE AND AUXILIARY VALVE


    Additional title:

    HYDRAULIKHAUPTVENTIL UND HILFSVENTIL
    SOUPAPE HYDRAULIQUE PRINCIPALE ET SOUPAPE HYDRAULIQUE AUXILIAIRE


    Contributors:

    Publication date :

    2017-08-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E02F Baggern , DREDGING / F16L PIPES , Rohre / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge



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