Abstract:
A watercraft system is provided. The watercraft system includes a hull and a plurality of removable pods. Each pod has a different operational characteristic to alter the configuration of the watercraft depending on which pod is inserted. The hull has a pod opening for receiving a selected one of the removable pods. A method and apparatus for transitioning various ones of the pods between different positions is also provided.
Abstract:
An improved trimaran of a type having a central hull, a starboard outrigger, a port outrigger, a starboard crossbar for attaching the starboard outrigger laterally to the starboard of the central hull, and a port crossbar for attaching the port outrigger laterally to the port of the central hull is provided. The improvement comprises a starboard propulsor attached to the starboard outrigger for propelling the trimaran, a port propulsor attached to the port outrigger for propelling the trimaran; and a motor controller connected to both the starboard and port propulsors for controlling the combined propulsion of the starboard and port propulsors for controlling both the speed and direction of the trimaran by tank steering.
Abstract:
Disclosed are a propulsion device for a ship and a ship having same. The propulsion device, according to an embodiment of the present invention, comprises: a rear propeller fixed to a driveshaft; a front propeller positioned in front of the rear propeller, and supported rotably on the driveshaft; and a counter rotation device for reversing and transmitting the rotation of the driveshaft to the front propeller; a motor for rotating the driveshaft; and an housing, which extends from to the lower part of the hull, and which is installed so as to envelope the counter rotation device and the motor.
Abstract:
The present disclosure relates to a ship's propulsion unit such as a ship's azimuthing propulsion unit. The propulsion unit can include at least one supporting metal sheet arranged between an support section of a shell structure of the propulsion unit and an cylindrical outer surface of a cylindrical section of a motor housing section of the shell structure for providing additional support for the motor housing section of the shell structure at the shell structure of the support section.
Abstract:
A dynamo-electric machine, for example a marine propulsion unit, includes a stator and a rotor in the form of an impeller. The impeller is rim-driven and includes an annular core of ferromagnetic material, on which are provided layers in the form of an environmental enclosure and electrically conductive sleeves. Appropriate selection of the materials and thicknesses of the layers enables the starting and normal running performance of the machine to be optimised.
Abstract:
A frigate ship-type equipment system includes standard equipment segments, such as an energy generator, an energy distributor, a drive and an automation segment, also includes a hull which is adapted to the large and specific requirements of the frigate ship-type equipment system. In order to construct standard equipment segments for a frigate ship-type equipment system which is technically and constructively simple and economical in terms of cost, at least one of the standard-equipment segments, such as the energy generator and/or the energy distributor and/or the drive and/or the automation segment is constructed from the standard units or components which correspond to the requirements of the frigate ship-type equipment system and which are arranged in the hull of the ship and which can be built into the hull of the ship body according to equipping systems for various ship types.
Abstract:
An arrangement for a ship's propulsion unit includes a motor unit with a motor housing arranged in the water. A motor and related controls are provided in the motor housing. A propeller is arranged at an end of a motor shaft. The motor unit includes an electric motor, wherein an entire circumferential surface of the electrical motor is cooled through a casing structure of the motor directly to the water surrounding the motor unit.
Abstract:
A marine-(navy) or commercial or yacht ship-type equipment system is for electrically driven ships having different sizes and driving power. The ships, as well as coast guard boats and customs boats, include standardized equipment segments for the propulsion and operation thereof. The individual equipment system for ship types consists of hulls, which are embodied according to the type of ship, i.e. are made according to size and specific task requirements and the equipment segments for propulsion, such as electrical oar propellers and waterjets, and for the operation of the ship such as the energy generator, the energy distributor and automation elements, are embodied according to type and according to driving power and function of the individual ships. The equipment segments are embodied in a prefabricated manner and can be installed on different areas in the hull of the ship.
Abstract:
Marine vessel propulsion system comprising engine system (2) for producing propulsion power and several propulsion means (3, 9) at its stem section, including a combination of at least two propulsion arrangements (9) capable of steering action and at least one shaft driven propeller drive (3) having a controllable pitch propeller (6), being adjustable to substantially feathering conditions. The invention relates also to method of operating a marine vessel propulsion system in which at low speed and/or harbour manoeuvring operation the shaft driven propeller drive (3) is adjusted to be feathering and power transmission to the propeller (6) is stopped.
Abstract:
A course-holding, high-speed, sea-going vessel having a hull which is intended to hold payloads or passengers and at least one rotatable, preferably electric, rudder propeller (POD) which is arranged gondola-like under the hull of the vessel and has, to supply it with power, at least one motor/generator unit which is arranged in the hull of the vessel, the hull of the vessel having at least in part a bottom which rises somewhat toward the two sides of the hull, and in that the front part of the hull is designed so as to stabilize the course and movement of the vessel and ending under water, in particular in a relatively slender bow with a bulb, and in that a flow-guiding element (skegg) is arranged upstream of each rudder propeller in order both to optimize the handling characteristics and to achieve an optimized flow against the rudder propeller, which has a displacement volume for the water flowing against the respective rudder propeller.