Rudder rotor for watercraft and floating equipment
AssigneeFirma Jastram-Werke GmbH KG
InventorFred Petersen
Life of this patent
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Abstract
The invention relates to an electric rudder rotor which in its simplest construction is in the form of an externally running underwater electric motor and comprises a fixed stator and a rotating rotor, which carries the rotor cylinder, the stator being supplied with electric current and the rotor being rotated by magnetic interaction between the stator and the rotor.
Claims13
In a rudder assembly for watercraft and floating equipment including a rudder plate and a rudder rotor mounted on said rudder plate, said rudder rotor including rotating external surface means, the improvement comprising that said rudder rotor is itself constructed as an electric motor to include components forming said rudder rotor as an underwater electric motor consisting essentially of a motor stator and a motor rotor operative to rotatively drive said rotating external surface means, said motor stator and said motor rotor being physically completely contained within the structure of said rudder rotor, said assembly further comprising power supply means extending externally of said rudder rotor for supplying power to drive said electric motor, and wherein the inner area of said rudder rotor is sealed in an air-tight manner at the top and has no seal towards the bottom.
In a rudder assembly for watercraft and floating equipment including a rudder plate and a rudder rotor mounted on said rudder plate, said rudder rotor including rotating external surface means, the improvement comprising that said rudder rotor is itself constructed as an electric motor to include components forming said rudder rotor as an underwater electric motor consisting essentially of a motor stator and a motor rotor operative to rotatively drive said rotating external surface means, said motor stator and said motor rotor being physically completely contained within the structure of said rudder rotor, said assembly further comprising power supply means extending externally of said rudder rotor for supplying power to drive said electric motor, and wherein the inner area of said rudder rotor is connected with a compressed air line.
In a rudder assembly for watercraft and floating equipment including a rudder plate and a rudder rotor mounted on said rudder plate, said rudder rotor including rotating external surface means, the improvement comprising that said rudder rotor is itself constructed as an electric motor to include components forming said rudder rotor as an underwater electric motor consisting essentially of a motor stator and a motor rotor operative to rotatively drive said rotating external surface means, said motor stator and said motor rotor being physically completely contained within the structure of said rudder rotor, said assembly further comprising power supply means extending externally of said rudder rotor for supplying power to drive said electric motor, and wherein the inner area of said rudder rotor can be blown out with compressed air from the outside via closable or non-closable openings.
In a rudder assembly for watercraft and floating equipment including a rudder plate and a rudder rotor mounted on said rudder plate, said rudder rotor including rotating external surface means, the improvement comprising that said rudder rotor is itself constructed as an electric motor to include components forming said rudder rotor as an underwater electric motor consisting essentially of a motor stator and a motor rotor operative to rotatively drive said rotating external surface means, said motor stator and said motor rotor being physically completely contained within the structure of said rudder rotor, said assembly further comprising power supply means extending externally of said rudder rotor for supplying power to drive said electric motor, and wherein a quantity of water is arranged in the inner area of the rudder, rotor above which a protective air bubble is formed for the electromotive parts (stator and rotor).
Dependencies are inferred from the claim text.