Disclosed are an adjustable load pressure compensation balancing system, an end cover, and a counterbalance valve. The adjustable load pressure compensation balancing system comprises: an adjustable orifice control module and a counterbalance valve control module, wherein the adjustable orifice control module is used for receiving control oil generated when a luffing system descends and oil from a descending cavity of a luffing cylinder, and the quantity of the control oil received by the adjustable orifice control module is increased with the increase of the pressure applied to the adjustable orifice control module by the oil from the descending cavity of the luffing cylinder; the counterbalance valve control module is used for receiving the control oil generated when the luffing system descends, and the quantity of the oil received by the counterbalance valve control module from the descending cavity is decreased with the decrease of the quantity of the control valve control module acting on the counterbalance valve control module; the pressure applied to the counterbalance valve control module by the control oil is maximum when the luffing system starts to descend, and then decreases gradually; and the pressure applied to the adjustable orifice control module by the oil from the descending cavity is minimum when the luffing system starts to descend, and then increases gradually. The adjustable orifice control module and the counterbalance valve control module form a pilot control orifice network to control the opening degree of a spool of the counterbalance valve, so pilot pressure fluctuations can be effectively filtered.


    Access

    Download


    Export, share and cite



    Title :

    ADJUSTABLE LOAD PRESSURE COMPENSATION BALANCE SYSTEM, END COVER AND BALANCE VALVE


    Additional title:

    AUSGLEICHSSYSTEM MIT EINSTELLBAREM LASTDRUCKAUSGLEICH, ENDKAPPE UND AUSGLEICHSVENTIL
    SYSTÈME D'ÉQUILIBRAGE DE COMPENSATION DE PRESSION DE CHARGE RÉGLABLE, COUVERCLE D'EXTRÉMITÉ ET SOUPAPE D'ÉQUILIBRAGE


    Contributors:
    LIU YINGYING (author) / ZHAI YANAN (author) / SU DANFENG (author)

    Publication date :

    2024-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



    ADJUSTABLE LOAD PRESSURE COMPENSATION BALANCE SYSTEM, END COVER AND BALANCE VALVE

    LIU YINGYING / ZHAI YANAN / SU DANFENG | European Patent Office | 2023

    Free access

    Pressure balance valve

    GAO ROBERT | European Patent Office | 2022

    Free access

    Pressure Balance Valve

    GAO ROBERT | European Patent Office | 2021

    Free access

    Adjustable balance compensation cable terminating device for elevator

    PAN JIE / ZHU WEILIANG / LIU ZONGLIANG | European Patent Office | 2021

    Free access

    ADJUSTABLE BLADE BALANCE MODULE

    HALDEMAN ANDREW PAUL | European Patent Office | 2019

    Free access