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 slide-able 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.
SUBSEA HEAVE COMPENSATOR
2016-02-11
Patent
Elektronische Ressource
Englisch
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 |