A propulsion assembly of a ship or floating platform includes a housing within a hull or platform. The housing is watertight except for an opening external to the hull. A stationary motor is arranged in the hull external to the housing. A thruster is external to the hull to generate thrust on the ship or floating platform. A telescopic driving shaft passes sealingly through a housing wall to connect the motor and the thruster and to transmit movement from the motor to the thruster. The thruster retracts within the housing through the opening. A separate submersible movable hatch is disconnectable from the thruster and the housing and passes externally to the hull, and seals the opening to form a watertight closed chamber. A fluid evacuation device evacuates fluid within the closed chamber so the thruster, when retracted in the housing and closed by the hatch, forms the closed chamber.
RETRACTABLE THRUSTER
EINZIEHBARER SCHIFFSANTRIEB
PROPULSEUR RETRACTIL
01.03.2017
Patent
Elektronische Ressource
Englisch
Retractable thruster and drive shaft for retractable thruster
Europäisches Patentamt | 2021
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