Arrangement for multi screw vessels comprising external propeller shafts as well as method for producing such an arrangement
Assigneebecker marine systems GmbH & Co. KG
InventorDirk Lehmann
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Abstract
The invention relates to an arrangement for multi screw vessels, in particular twin screw vessels, with external propeller shafts, as well as to a method for producing such an arrangement. The arrangement according to the invention is in particular suitable for a drive system of an above-mentioned multi screw vessel and to improve the energy efficiency thereof.
Claims20
An arrangement for multi screw vessels with external propeller shafts, comprising
- at least two shaft brackets for supporting the propeller shafts, each of the at least two shaft brackets having at least one shaft bracket arm for fastening the respective shaft bracket to the multi screw vessel;
- and
- at least two devices for reducing the drive power requirement of the multi screw vessel, wherein each device is assigned to one of the at least two shaft brackets, and wherein each of the at least two devices comprises at least one hydrofoil;
- wherein at least one shaft bracket arm of each shaft bracket is formed as a hydrofoil of the device, and wherein, in addition to the shaft bracket arms, no further hydrofoils are provided, or
- wherein each of the at least two devices comprises a fore-nozzle, and wherein, each one of the at least two devices comprises at least one fin, which is formed as a hydrofoil, wherein the at least one fin is arranged in the interior of the fore-nozzle and/or on the outside of the fore-nozzle.
A multi screw vessel with external propeller shafts, wherein the multi screw vessel comprises an arrangement for multi screw vessels with external propeller shafts, comprising
- at least two shaft brackets for supporting the propeller shafts, wherein each of the at least two shaft brackets has at least one shaft bracket arm for fastening the respective shaft bracket to the multi screw vessel;
- and
- at least two devices for reducing the drive power requirement of the multi screw vessel, wherein each device is assigned to one of the at least two shaft brackets, and wherein each of the at least two devices comprises at least one hydrofoil;
- wherein at least one shaft bracket arm of each shaft bracket is formed as a hydrofoil of the device, and wherein, in addition to the shaft bracket arms, no further hydrofoils are provided, or
- wherein each of the at least two devices comprises a fore-nozzle, and wherein, each one of the at least two devices comprises at least one fin, which is formed as a hydrofoil, wherein the at least one fin is arranged in the interior of the fore-nozzle and/or on the outside of the fore-nozzle.
A method for producing an arrangement for multi screw vessels with external propeller shafts, wherein at least two devices for reducing the drive power requirement of the vessels are provided, wherein each device comprises a fore-nozzle and at least one hydrofoil, wherein the at least one hydrofoil is arranged in the interior of the fore-nozzle and/or on the outside of the fore-nozzle, wherein the at least two devices are each arranged on and fastened to a shaft bracket of a propeller shaft of the multi screw vessel in such a manner that at least one shaft bracket arm of a shaft bracket are arranged so as to be integrated in one of the at least two devices.
A method for producing an arrangement for multi screw vessels with external propeller shafts, wherein at least two devices for reducing the drive power requirement of the vessels are provided, wherein each device comprises at least one hydrofoil, wherein the at least two devices are each arranged and fastened to a shaft bracket of a propeller shaft of the multi screw vessel, wherein at least three shaft bracket arms are provided for each shaft bracket, which are each connected to the hull of the multi screw vessel with their one end, and which are fastened to the shaft bracket with their other end, wherein the at least three shaft bracket arms are each formed as hydrofoils of the device, wherein no further hydrofoils are provided in addition to the shaft bracket arms, wherein at each device a fore-nozzle is provided, which, together with the at least three shaft bracket arms, which are formed as hydrofoils, each form a device.
Dependencies are inferred from the claim text.