The invention relates to a hydraulic lifting system (1) comprising a hydraulic circuit (3), having a feed line (5) and a return line (7), to which circuit (3) a plurality of components are coupled, comprising: a lifting device (9), at least one hydraulic auxiliary device (11), at least a first pump (13), at least one electric motor (15) for operating the at least one pump (13), a tank (17) for holding hydraulic fluid, a first control valve (19), a second control valve (21), and a control unit, for operating the valves (19, 21) and the at least one electric motor (15). The first control valve (19) is arranged on the feed line (5), to control a flow of hydraulic fluid there through, which flow is provided to the feed line (5) by means of the pump (13), to be directed to the lifting device (9), which lifting device (9) performs a lifting operation when provided with hydraulic fluid. The second control valve (21) is arranged on the return line (7), to re-direct the flow of hydraulic fluid from the feed line (5) to the return line (7), which leads said hydraulic fluid to the tank (17), wherein the lifting device (9) performs a lowering operation when the hydraulic fluid is drained therefrom by means of the second control valve (21). The system (1) further comprises a hydraulic motor (27), arranged on the return line (7), between the second control valve (21) and the tank (17), wherein the hydraulic motor (27) when provided with hydraulic fluid from the return line (7) is arranged to generate mechanical energy to a rotatable axle (29). The invention further relates to a fork-lift truck (53) comprising such a hydraulic lifting system (1) and a method for providing such a hydraulic system (1) to a fork-lift truck (53).


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    HYDRAULIC LIFTING SYSTEM


    Weitere Titelangaben:

    HYDRAULISCHES HUBSYSTEM
    SYSTÈME DE LEVAGE HYDRAULIQUE


    Beteiligte:
    KHUDAIR HAIDER (Autor:in)

    Erscheinungsdatum :

    05.08.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    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



    Hydraulic lifting valve and hydraulic lifting system

    WANG CHENG / WANG PENG / RAO ZHENXING et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Hydraulic lifting system

    YUE YUANJING / LI XIAOBO / CAO JIANHONG et al. | Europäisches Patentamt | 2015

    Freier Zugriff

    Automobile chassis hydraulic lifting system and hydraulic lifting method

    WANG HANMING / ZHU YAWEI / ZOU HONGJUN et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Hydraulic pivot system for hydraulic lifting column and lifting column

    AURICH DANNY | Europäisches Patentamt | 2023

    Freier Zugriff

    HYDRAULIC LIFTING APPARATUS, HYDRAULIC LIFTING SYSTEM HAVING SAME, AND LIFTING CARGO CARRYING PLATFORM

    SHI FENG / LIU FENGWEI / SHI CHUNJIANG et al. | Europäisches Patentamt | 2023

    Freier Zugriff