A hydraulic drive system includes: control valves; solenoid proportional valves outputting pilot pressures to the control valves; a controller controlling each of the solenoid proportional valves; a primary pressure line leading hydraulic oil from an auxiliary pump to the solenoid proportional valves; a solenoid switching valve provided on the primary pressure line; a movement detection line blocked when any of movement detection target control valves has moved; and a movement detection pressure sensor provided on the movement detection line. The controller controls the solenoid switching valve while all of operation devices are outputting electrical signals indicating that their operating levers are in neutral, such that: the solenoid switching valve opens the primary pressure line if a measurement value of the pressure sensor is less than a threshold; and the solenoid switching valve blocks the primary pressure line if the measurement value of the pressure sensor is greater than the threshold.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Hydraulic drive system


    Beteiligte:
    KONDO AKIHIRO (Autor:in)

    Erscheinungsdatum :

    12.03.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    E02F Baggern , DREDGING / B62D MOTOR VEHICLES , Motorfahrzeuge



    Hydraulic drive sharing system and hydraulic drive winch

    LIU PINGGUO / LIU SHOUJUN / ZHANG FUQIANG et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    HYDRAULIC DRIVE SYSTEM

    KODERA HIROYASU / KONDO TETSUHIRO | Europäisches Patentamt | 2022

    Freier Zugriff

    HYDRAULIC DRIVE SYSTEM

    TANAKA SHINICHIRO / KODERA HIROYASU | Europäisches Patentamt | 2015

    Freier Zugriff

    HYDRAULIC DRIVE SYSTEM AND VEHICLE COMPRISING THE HYDRAULIC DRIVE SYSTEM

    EDWARD IAIN / HUTCHESON JOHN | Europäisches Patentamt | 2020

    Freier Zugriff

    Hydraulic drive system

    Europäisches Patentamt | 2019

    Freier Zugriff