A stern tube seal system that prevents lubricant oil from flowing out from a stern tube that covers a propeller shaft is provided. The stern tube seal system includes a tubular housing configured to have the propeller shaft inserted therethrough; a first seal ring configured to be supported by the housing and to be in sliding contact with an outer circumferential surface of a liner that externally fits on the propeller shaft; a second seal ring configured to be supported by the housing on a stem side of the first seal ring and to be in sliding contact with the outer circumferential surface of the liner to form a first air chamber between the first seal ring and the second seal ring; an air supply part configured to supply air to the first air chamber at an air pressure greater than or equal to a sea water pressure that is on a stern side of the first seal ring; and a lubricant oil circulation part configured to circulate the lubricant oil in the stern tube at an oil pressure lower than the sea water pressure.


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    Title :

    STERN TUBE SEALING SYSTEM, STERN TUBE SEALING DEVICE, SHIP, AND STERN TUBE SEALING METHOD


    Additional title:

    STEVENROHRDICHTUNGSSYSTEM, STEVENROHRDICHTUNGSVORRICHTUNG, SCHIFF UND STEVENROHRDICHTUNGSVERFAHREN
    SYSTÈME D'ÉTANCHÉITÉ DE TUBE D'ÉTAMBOT, DISPOSITIF D'ÉTANCHÉITÉ DE TUBE D'ÉTAMBOT, NAVIRE, ET PROCÉDÉ D'ÉTANCHÉITÉ DE TUBE D'ÉTAMBOT


    Contributors:

    Publication date :

    2017-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F16J Kolben , PISTONS



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