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.
SHAFT SEALING DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE
WELLENABDICHTUNGSVORRICHTUNG FÜR GEGENLÄUFIGE SCHIFFSSCHRAUBENVORRICHTUNG
DISPOSITIF D'ÉTANCHÉITÉ D'ARBRE POUR DISPOSITIF D'HÉLICE À CONTRE-ROTATION MARIN
2021-01-27
Patent
Electronic Resource
English
SHAFT SEALING DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE
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