A gyroscopic roll stabilizer comprises a gimbal having a support frame and enclosure configured to maintain a below-ambient pressure, a flywheel assembly including a flywheel and flywheel shaft, one or more bearings for rotatably mounting the flywheel inside the enclosure, a motor for rotating the flywheel, and bearing cooling system for cooling the bearings supporting the flywheel. For smaller units, the bearing cooling system is effective to enable a flywheel with a moment of inertia less than 11.7 kg.m2 (40000 lbm in2) to be accelerated at a rate of 5 rpm/s or greater. For larger units, the bearing cooling system is effective to enable a flywheel with a moment of inertia greater than 11.7 kg.m2 (40000 lbm in2) to be accelerated at a rate of 2.5 rpm/s or greater.


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    Title :

    Gyroscopic boat roll stabilizer


    Contributors:

    Publication date :

    2023-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / F16C SHAFTS , Wellen / F16F SPRINGS , Federn / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H05K PRINTED CIRCUITS , Gedruckte Schaltungen



    Gyroscopic boat roll stabilizer

    SMITH GRADY / HOLDEN DAVID / PETERSON JEFFREY | European Patent Office | 2022

    Free access

    Gyroscopic boat roll stabilizer

    SMITH GRADY F / HOLDEN DAVID / PETERSON JEFFREY | European Patent Office | 2023

    Free access

    Gyroscopic Boat Roll Stabilizer

    SMITH GRADY F / HOLDEN DAVID / PETERSON JEFFREY | European Patent Office | 2023

    Free access

    Gyroscopic Boat Roll Stabilizer

    SMITH GRADY F / HOLDEN DAVID / PETERSON JEFFREY | European Patent Office | 2022

    Free access

    Gyroscopic boat roll stabilizer

    SMITH GRADY F / HOLDEN DAVID / PETERSON JEFFREY | European Patent Office | 2022

    Free access