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.
STERN TUBE SEALING SYSTEM, STERN TUBE SEALING DEVICE, SHIP, AND STERN TUBE SEALING METHOD
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
2017-11-08
Patent
Electronic Resource
English
STERN TUBE SEALING SYSTEM STERN TUBE SEALING DEVICE SHIP AND STERN TUBE SEALING METHOD
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