This shaft sealing device 50 is provided with a stern tube seal 52 on the stern side, a contra-rotating seal 54 on the stern side, a single air supply device 56, a stern tube drainage recovery device 58, and a contra-rotating drainage recovery device 60. The single air supply device 56 supplies seal pressurized air A to the stern tube seal 52 on the stern side and to the contra-rotating seal 54 on the stern side via the stern tube seal 52. The stern tube drainage recovery device 58 independently recovers a front section drainage D1 discharged from the stern tube seal 52 on the stern side. The contra-rotating drainage recovery device 60 recovers a rear section drainage D2 discharged from the contra-rotating seal 54 on the stern side by separating it from the front section drainage D1.


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    Title :

    SHAFT SEALING DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE


    Additional title:

    WELLENABDICHTUNGSVORRICHTUNG FÜR GEGENLÄUFIGE SCHIFFSSCHRAUBENVORRICHTUNG
    DISPOSITIF D'ÉTANCHÉITÉ D'ARBRE POUR DISPOSITIF D'HÉLICE À CONTRE-ROTATION MARIN


    Contributors:

    Publication date :

    2021-01-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F16C SHAFTS , Wellen / F16J Kolben , PISTONS / F16N LUBRICATING , Schmierung



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