A heave compensator for heavy lifts with adjustable dampening characteristics is able to operate above and below the water line in environmental pressures ranging from the atmospheric up to several hundred atmospheres pressure. A method for automatic regulation of the available stroke length of the heave compensator during the lifting operation, based on the realization that heave compensating devices utilising a slideable piston as a volume expanding mechanism to reduce the tension forces upon relative movements between crane and load, may obtain a simple compact construction able to execute a range of different compensation functionalities by registering the pressure and temperature in the gas filled chambers of the device, and employing this information to regulate the amount of gas in the single gas filled chambers.


    Access

    Download


    Export, share and cite



    Title :

    Subsea heave compensator


    Contributors:

    Publication date :

    2018-03-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS , Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen / B66D Haspeln , CAPSTANS / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / F16F SPRINGS , Federn



    SUBSEA HEAVE COMPENSATOR

    BERGEM ODDBJØRN / SANNES STIAN / HELLAND KRISTIAN | European Patent Office | 2016

    Free access

    Subsea heave compensator

    BERGEM ODDBJØRN / SANNES STIAN / HELLAND KRISTIAN | European Patent Office | 2018

    Free access

    Subsea Passive Heave Compensator

    CANNELL DAVID / LABBE CHRISTOPHE / ODIGIE ERIC et al. | European Patent Office | 2017

    Free access

    MOBILE HEAVE COMPENSATOR FOR SUBSEA ENVIRONMENT

    MARTINSEN TORD B / SKARE BERG ANDRE | European Patent Office | 2019

    Free access

    Mobile heave compensator for subsea environment

    MARTINSEN TORD B / SKARE BERG ANDRE | European Patent Office | 2018

    Free access