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Application tag boat

Application tag boat
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PROPULSION SYSTEMS IN TUG BOATS Up to 20,000 kW engine power, 7,000 operating hours a year and greatest possible manoeuvrability – these are the demands made of tug boats. In order to meet these demands powerful diesel-mechanical and dieselelectrical drive systems, in conjunction with POD drives, are frequently being used. This application demands a high availability of the propulsion system and this in return poses the challenges for modern tug drive line components:

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Medium Duty Operation © highly cost effective solutions ® high deflection compensation

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RATO R COUPLINGS WITH COMPOSITE INTERMEDIATE SHAFTS Composite shaft between the radially supported RATO R and the thruster. The Composite shaft is of double cardanic design with a membrane coupling assembly at the RATO R and another membrane assembly at the rear end of the Composite shaft. VULKAN Composite shafts are made from all available fibre grades e.g. featuring a top axial stiffness similar to the one of steel with about only 25% of the density of steel. This leads to a significant weight saving and increased critical speed of the shaft with subsequent reduction of bearings....

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THE VULKAN INTEGRATED SHAFT COUPLING DESIGN (ISC) compared to the torque load. Therefore no additional misalignment component is required between RATO DS and shaft. Shaft lengths up to 7 meters can be achieved without any additional pedestal bearing. The VULKAN Couplings’ expertise also allows to use the Composite shaft as an additional torsionally flexible part for optimised tuning and damping of torsional vibration. VULKAN Couplings introduced a new combination of the well proven RATO DS coupling with a directly connected Composite shaft to be used in Diesel engine and electric motor...

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