A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover(2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Hydraulic hybrid swing drive system for excavators


    Beteiligte:
    ZHANG HAO (Autor:in) / CULLMAN JEFF (Autor:in) / COLLETT RAYMOND (Autor:in) / HOWLAND JAMES (Autor:in) / WHITE NICK (Autor:in) / STEGEMANN PATRICK (Autor:in)

    Erscheinungsdatum :

    2015-11-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    E02F Baggern , DREDGING / B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



    HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

    WHITE NICHOLAS N / HOWLAND JAMES / ZHANG HAO | Europäisches Patentamt | 2018

    Freier Zugriff

    HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

    ZHANG HAO / CULLMAN JEFF / COLLETT RAYMOND et al. | Europäisches Patentamt | 2017

    Freier Zugriff

    HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR EXCAVATORS

    WHITE NICHOLAS N / HOWLAND JAMES / ZHANG HAO | Europäisches Patentamt | 2016

    Freier Zugriff

    Hydraulic hybrid swing drive system for excavators

    WHITE NICHOLAS N / HOWLAND JAMES / ZHANG HAO | Europäisches Patentamt | 2018

    Freier Zugriff

    Swing Energy Recuperation Scheme for Hydraulic Excavators

    Thompson, Bradley / Yoon, Hwan-Sik / Lee, Jae et al. | SAE Technical Papers | 2014