In a method of driving a hydraulic system, a contracting force is applied to a hydraulic actuator, thereby causing hydraulic fluid from the hydraulic actuator to flow through a first hydraulic pump motor into a first accumulator, thereby causing the first hydraulic pump motor to apply rotational energy to a shaft. The rotational energy from the shaft is applied to a second hydraulic pump motor, thereby causing hydraulic fluid to be pumped from a second accumulator to a third accumulator so as to store energy in the third accumulator. Once energy is stored in the third accumulator, the second hydraulic pump motor is driven with hydraulic fluid stored in the third accumulator so as to apply rotational energy to the shaft, thereby driving the first hydraulic pump motor to pump hydraulic fluid from the first accumulator to the hydraulic actuator, thereby applying an expanding force to the hydraulic actuator.


    Access

    Download


    Export, share and cite



    Title :

    Energy Recapture System for Hydraulic Elevators


    Contributors:

    Publication date :

    2015-06-25


    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 / B66B Aufzüge , ELEVATORS



    Energy recapture system for hydraulic elevators

    LEAMY MICHAEL J / PENA OSCAR RAFAEL | European Patent Office | 2017

    Free access

    Investigation into energy regeneration of hydraulic elevators

    Yang, Huayong / Sun, Wei / Xu, Bing | Tema Archive | 2006


    HYDRAULIC SHOCK ABSORBER FOR ELEVATORS

    MIZUNO KOSUKE / KAJITA AKINARI | European Patent Office | 2018

    Free access

    SYSTEM FOR MONITORING ELEVATORS AND MAINTAINING ELEVATORS

    ELEID RAY / HALIM FRANSKY | European Patent Office | 2017

    Free access

    System for monitoring elevators and maintaining elevators

    ELEID RAY / HALIM FRANSKY | European Patent Office | 2017

    Free access