A hydraulic control system for a material handling vehicle including one or more hydraulic actuators configured to raise and lower a fork assembly attached to a mast of the material handling vehicle is provided. The hydraulic control system is configured to provide multi-stage pressure relief based on a height of the fork assembly.


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    Title :

    Variable hydraulic pressure relief systems and methods for a material handling vehicle


    Contributors:

    Publication date :

    2020-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last





    VARIABLE HYDRAULIC PRESSURE RELIEF SYSTEMS AND METHODS FOR A MATERIAL HANDLING VEHICLE

    WEISS THOMAS R / SMITH ERIC A | European Patent Office | 2021

    Free access