The invention relates to a device for reducing the driving power requirement of a watercraft, in particular a ship, and for arranging in front of a ship propeller in the direction of flow, comprising a flow guidance surface, in particular a nozzle ring or a partial nozzle ring, at least one inner fin projecting from the flow guidance surface, wherein an end of the inner fin is attached to the flow guidance surface and wherein, when the device is installed in a watercraft, another end of the inner fin is attached to a watercraft, and at least one outer fin projecting from the flow guidance surface, wherein one end of the outer fin is attached to the flow guidance surface and wherein another end of the outer fin is designed as a free end, wherein the at least one inner fin and/or the at least one outer fin are produced from a composite material.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/04 - Arrangements on vessels of propulsion elements directly acting on water of paddle wheels, e.g. of stern wheels with stationary water-guiding elements
In order to create an improved arrangement to reduce the propulsion-power requirement of a twin-screw ship comprising a first propeller and a second propeller and a first guiding device and a second guiding device, wherein, in the forward direction of the watercraft, the first guiding device is arranged in front of the first propeller, and the second guiding device is arranged in front of the second propeller, wherein the first propeller and the second propeller are attached to a first propeller shaft and to a second propeller shaft, and wherein the first propeller shaft defines a first propeller axis and the second propeller shaft defines a second propeller axis, the first guiding device and the second guiding device each comprise at least one fin, which extends from the propeller axes, wherein the fin of the first guiding device and of the second guiding device extend outwardly to the sides of the watercraft respectively.
B63H 5/10 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
3.
RUDDER TRUNK FOR A WATERCRAFT, A WATERCRAFT HAVING A RUDDER TRUNK AND A METHOD FOR PRODUCING A RUDDER TRUNK
To improve the hydrodynamic efficiency of a vessel, a rudder trunk for a vessel is proposed, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft, an intermediate space is provided between the rudder stock tube and the receiving shaft, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged on the receiving shaft, and wherein the at least one holder element and/or that at least one complementary holder piece projects into the intermediate space in the state of the rudder trunk being arranged in the receiving shaft.
To improve the hydrodynamic efficiency of a vessel, a rudder trunk for a vessel is proposed, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft, an intermediate space is provided between the rudder stock tube and the receiving shaft, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged on the receiving shaft, and wherein the at least one holder element and/or that at least one complementary holder piece projects into the intermediate space in the state of the rudder trunk being arranged in the receiving shaft.
To improve the hydrodynamic efficiency of a vessel, a rudder trunk for a vessel is proposed, comprising a rudder stock tube, a receiving shaft and a holder for holding the rudder stock tube in the receiving shaft, wherein, in a state of the rudder stock tube being arranged in the receiving shaft, an intermediate space is provided between the rudder stock tube and the receiving shaft, wherein the holder comprises at least one holder element and at least one complementary holder piece, wherein the at least one holder element is arranged on the rudder stock tube, wherein the at least one complementary holder piece is arranged on the receiving shaft, and wherein the at least one holder element and/or that at least one complementary holder piece projects into the intermediate space in the state of the rudder trunk being arranged in the receiving shaft.
In order to provide an arrangement with at least one rudder and with at least one accommodating space for a propeller, which accommodating space is formed in the direction of travel of the watercraft in front of the rudder and allows for a reduction of a propulsion power requirement of a watercraft with such an arrangement, it is proposed that, in the direction of travel in front of the accommodating space of the propeller, at least one pre-nozzle comprising at least one guide surface and at least one side fin is arranged on the rudder.
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
In order to make available an improved arrangement (10) for reducing the drive power requirement of a twin-screw ship, which arrangement (10) has a first propeller (20) and a second propeller (21) and a first guide device (30) and a second guide device (31), wherein, viewed in the forward travel direction (F) of the watercraft (100), the first guide device (30) is arranged in front of the first propeller (20) and the second guide device (31) is arranged in front of the second propeller (21), wherein the first propeller (20) and the second propeller (21) are fastened to a first propeller shaft and to a second propeller shaft, and wherein the first propeller shaft defines a first propeller axis (22) and the second propeller shaft defines a second propeller axis (23), the first guide device (30) and the second guide device (31) each have at least one fin (32, 33), said fins extending from the propeller axes (22, 23), and the fins (32, 33) of the first guide device (30) and of the second guide device (31) each extend outwards to the watercraft sides (101, 102).
B63H 5/08 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
B63H 1/28 - Other means for improving propeller efficiency
6.
RUDDER TRUNK FOR A WATERCRAFT, WATERCRAFT HAVING A RUDDER TRUNK, AND METHOD FOR PRODUCING A RUDDER TRUNK
To improve the hydrodynamic efficiency of a watercraft, the invention proposes a rudder trunk (100) for a watercraft (13), comprising a trunk tube (10), a receiving shaft (11) and a retainer (20) for retaining the trunk tube (10) in the receiving shaft (11), wherein: there is an intermediate space (19) between the trunk tube (10) and the receiving shaft (11) when the trunk tube (10) is situated in the receiving shaft (11); the retainer (20) comprises at least one holder element (21, 21a, 21b, 21c, 21d) and at least one holder partner (22, 22a, 22b, 22c, 22d); the at least one holder element (21, 21a, 21b, 21c, 21d) is situated on the trunk tube (10); the at least one holder partner (22, 22a, 22b, 22c, 22d) is situated on the receiving shaft (11); and the at least one holder element (21, 21a, 21b, 21c, 21d) and/or the at least one holder partner (22, 22a, 22b, 22c, 22d) protrudes into the intermediate space (19) when the trunk tube (10) is situated in the receiving shaft (11).
In order to provide an arrangement (20) having at least one rudder (21) and having at least one receiving space (22), formed in front of the rudder (21) in a direction of travel (F) of the watercraft (100), for a propeller (30), which arrangement makes it possible for a drive power requirement of a watercraft (100) having an arrangement (20) of said type to be reduced, it is proposed that at least one pre-nozzle (23) with at least one guide surface (24) is arranged in front of the receiving space (22) of the propeller (30) in the direction of travel (F), and at least one side fin (25) is arranged on the rudder (21).
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
Rudder for watercraft with a bearing clearance measuring device, method for measurement of a bearing clearance in a rudder and bearing clearance measuring device for a rudder
A rudder for watercraft, in particular for ships, is proposed, comprising a rudder shaft arranged in a trunk pipe, a rudder blade connected to the rudder shaft and a bearing bushing arranged between trunk pipe and rudder shaft as well as a bearing clearance measuring device, wherein the bearing clearance measuring device comprises at least one sensor for abrasion-free measurement of a bearing clearance.
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
9.
Rigid sail for vessels, in particular large ships, and vessel with a rigid sail
In order to provide a rigid sail or aerofoil sail which has a lower overall weight, is cost-effective to manufacture and does not affect the passing under bridges, power lines or similar structures arranged over busy waters, in the case of a rigid sail for vessels, in particular, for large ships, such as bulk carriers, tankers, car transporters or bulkers, comprising a mast and a first aerofoil wing body mounted on the mast with a base and a head, wherein the mast is inserted through the base into the first aerofoil wing body and is arranged within the first aerofoil wing body, it is proposed that the mast, starting from the base, does not extend beyond a maximum height of the first aerofoil wing body, in particular, less than 75% of the maximum height.
In order to provide a rudder for ships, in particular for double propeller ships, using which the flow resistance of the rudder and the turbulence of the wake of a propeller are reduced, a rudder (100, 100a, 100b) for ships, in particular for double propeller ships (200), is proposed, wherein: the rudder (100, 100a, 100b) is designed to be positioned in the wake of a propeller (211, 212) of a ship; the rudder (100, 100a, 100b) comprises an upper rudder section (10, 10a, 10b) and a lower rudder section (11, 11a, 11b); the lower rudder section (11, 11a, 11b) is bent or angled towards one side (12) of the rudder; and precisely one lower rudder section (11, 11a, 11b) is provided.
In order to provide a modular energy supply system, which can be flexibly modified to the requirements of different energy consumers and to local conditions and can be easily transported, the invention relates to a modular energy supply system (100) comprising a plurality of modules (10), wherein the plurality of modules (10) comprises a machine module (13) having an internal combustion engine (14) and a fuel storage module (15) having a fuel store (16), wherein the modular energy supply system comprises a cooling module (18) and a heat exchanger module (19), wherein a sub-group (11) of the plurality of modules (10) can be detachably connected to each other to form an energy supply device (12), wherein the energy supply device (12) comprises only one from the group consisting of a cooling module (18) and a heat exchanger module (19), and wherein the cooling module (18) and the heat exchanger module (19) of the energy supply device (12) are interchangeable for each other.
B63J 3/04 - Driving of auxiliaries from power plant other than propulsion power plant
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
F02G 5/02 - Profiting from waste heat of exhaust gases
12.
Rudder blade with a rudder blade hub and rudder blade hub for a rudder blade
A rudder blade includes a leading edge, a trailing edge, a first side wall and a second side wall lying opposite the first side wall, and a rudder blade hub, which is arranged in a connection space, for connecting a rudder stock. The rudder blade hub has a hub body including an inner bore for receiving the rudder stock, and a hub outer surface running in the circumferential direction, for the hub outer surface to be entirety spaced apart from an inner side of the first side wall and from an inner side of the second side wall.
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.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/08 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
B63H 25/42 - Steering or dynamic anchoring by propulsive elementsSteering or dynamic anchoring by propellers used therefor onlySteering or dynamic anchoring by rudders carrying propellers
14.
Device for improving the water influx towards a propeller of a watercraft
The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodied as a free end.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
BEARING FOR SUPPORTING A SHAFT, IN PARTICULAR A RUDDER SHAFT, OR A RUDDER BLADE, ELECTRONIC BEARING CLEARANCE MEASURING DEVICE, RUDDER COMPRISING A BEARING FOR SUPPORTING A SHAFT OR A RUDDER BLADE, AND METHOD FOR MEASURING WEAR OF A BEARING FOR SUPPORTING A SHAFT OR A RUDDER BLADE
The invention relates to a bearing for supporting a shaft, in particular a rudder shaft, or a rudder blade, by means of which bearing the bearing play or the bearing wear can be continuously monitored, determined, and optionally documented. According to the invention, for a bearing for supporting a shaft, in particular a rudder shaft, comprising a first bearing element and a second bearing element, wherein the first bearing element has a sliding surface for contacting the second bearing element in a sliding manner, and a measurement-value sensor having a wear surface for contacting the second bearing element in a sliding manner, the at least one measurement-value sensor is not pin-shaped.
F16C 17/02 - Sliding-contact bearings for exclusively rotary movement for radial load only
F16C 17/24 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired conditions, e.g. for preventing overheating, for safety
B63H 25/52 - Parts for steering not otherwise provided for
G01N 3/56 - Investigating resistance to wear or abrasion
16.
POWER SUPPLY UNIT, POWER SUPPLY ASSEMBLY, AND WATER VEHICLE HAVING A POWER SUPPLY UNIT OR HAVING A POWER SUPPLY ASSEMBLY
The invention relates to transportable and compactly designed power supply unit (100) for supplying a water vehicle, in particular a vehicle electrical system of the water vehicle, with electrical energy and in particular for arranging on the water vehicle, containing the following in a transport container or a plurality of transport containers that can be connected to each other, wherein the transport container or the plurality of transport containers can be transported as a single, connected unit: at least one internal combustion engine (1031) that can be operated with gas, in particular natural gas, at least one generator (1032) for generating electricity, which can be driven by the at least one internal combustion engine, at least one control device for the at least one internal combustion engine and/or at least one control device for the at least one generator, at least one fuel-processing device for the at least one internal combustion engine and/or at least one exhaust gas cleaning device (109) for the at least one internal combustion engine, and at least one fuel storage device (112), wherein the fuel of the fuel storage device is gas, in particular natural gas, which is present preferably as liquefied gas, especially preferably as LNG.
B63B 25/00 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby
B63J 3/04 - Driving of auxiliaries from power plant other than propulsion power plant
F02B 63/04 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for electric generators
17.
DEVICE FOR REDUCING THE DRIVING POWER REQUIREMENT OF A WATERCRAFT
The invention relates to a device (100) for reducing the driving power requirement of a watercraft, comprising a flow guiding surface (10) from which at least one first fin (20) projects. A first end of said first fin is fixed to the flow guiding surface (10), and a second end (23) of the first fin is embodied as a free end.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
In order to improve the adaptability of devices for generating energy with which both electrical and thermal energy can be generated to respectively given conditions of use with respect to the supply of thermal energy to consumers, a device for generating energy is specified which comprises: - a first energy-generating unit for generating electrical energy, in particular current, and - a second energy-generating unit for generating thermal energy, in particular heat and/or cold, and - an output device for supplying the thermal energy which is generated by the second energy-generating unit to a consumer, and an output monitoring device, wherein the output monitoring device is designed to enable the output device in a first operating state and to disable the output device in a second operating state, and/or - a control device for controlling the second energy-generating unit, wherein the control device is designed to activate the second energy-generating unit in a first operating state and to disable the second energy-generating unit in a second operating state.
In order to reduce the switching hysteresis in a dynamic positioning system and/or an autopilot system for watercraft, an arrangement is provided for determining a force acting on a rudder for watercraft. This arrangement includes a processing unit, at least one measuring device for determining values of a physical quantity of a rudder, and means for transmitting the determined values of the physical quantity to the processing unit. The processing unit is configured to determine the force acting on the rudder on the basis of the determined values of the physical quantity.
B63H 21/21 - Control means for engine or transmission, specially adapted for use on marine vessels
G01L 5/22 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
B63H 25/04 - Initiating means for steering automatic, e.g. reacting to compass
B63H 25/00 - SteeringSlowing-down otherwise than by use of propulsive elementsDynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
20.
Device for reducing the drive power requirements of a watercraft
A device is provided for reducing the drive power requirement of a watercraft includes a fore-nozzle, wherein at least one outer fin projects outwards from the fore-nozzle.
A device for maneuvering a watercraft includes a rudder trunk and a receiving shaft, wherein a first part of the rudder trunk is disposed in the receiving shaft in such a manner that there is an intermediate space between the first part of the rudder trunk and a wall of the receiving shaft. A second part of the rudder trunk projects from the receiving shaft, wherein the intermediate space has an apparatus for clamping the first part of the rudder trunk over a clamping height. A method for manufacturing a device for maneuvering a watercraft is also provided, wherein the manufacturing expenditure for the rudder trunk is reduced and the installation process of the rudder trunk is simplified.
A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.
B63H 1/18 - Propellers with means for diminishing cavitation, e.g. supercavitation
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
A propeller nozzle for watercraft includes a stationary propeller and a nozzle ring that shrouds the propeller and can be pivoted by means of a nozzle shaft. The nozzle shaft is provided in the form of a hollow body in order to achieve a constructively simple and simultaneously stable connection between the nozzle shaft and the nozzle ring.
An upper rudder carrier bearing for a ship which has a bearing housing formed of a housing base body and a housing cover. An axial and a radial bearing are disposed in the bearing housing, which are both configured as plain bearings. The axial and/or the radial bearing is configured as a self-lubricating bearing.
A bearing element is provided which has at least three individual annular segments which are each combined to form a homogeneous, inherently fixed bearing element. The individual annular segments each abut against at least two further annular segments and are interconnected by connecting means.
In order to achieve a connection between a nozzle shaft (20) and a nozzle ring (10) that has the simplest design possible, while at the same time being stable, in a propeller nozzle (100) for a watercraft which comprises a fixed propeller (30) and a nozzle ring (10) surrounding the propeller (30), said nozzle ring being pivotable by means of a nozzle shaft (20), the nozzle shaft (20) is designed as a hollow body.
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
27.
Arrangement for determining a force acting on a rudder
In order to reduce the switching hysteresis in a dynamic positioning system and/or an autopilot system for watercraft, an arrangement is provided for determining a force acting on a rudder for watercraft. This arrangement includes a processing unit, at least one measuring device for determining values of a physical quantity of a rudder, and means for transmitting the determined values of the physical quantity to the processing unit. The processing unit is configured to determine the force acting on the rudder on the basis of the determined values of the physical quantity.
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
In order to provide an upper rudder carrier bearing (100) for mounting a rudder post (54) of a rudder (50) of a watercraft, in particular a ship, by which the bearing design of the rudder post as a whole is simplified and by which the maintenance expenditure is reduced, the rudder carrier bearing (100) comprises a bearing housing (10), having in particular a housing main body (12) and a housing cover (11), wherein an axial and a radial bearing (30, 20) are disposed in the bearing housing (10), which are both designed as sliding bearings, and wherein the axial and/or the radial bearings (30, 20) are designed as self-lubricating bearings.
In a linkage device for flap rudders for watercraft, in particular ships, a first bearing housing includes a sliding piston and a first sliding bearing, and a second bearing housing includes a linkage pin and optionally a second sliding bearing. The first and the second bearing housings and/or the sliding piston and the linkage pin and/or optionally the first and the second bearings each have substantially the same diameter and/or substantially the same width and height.
The rudder arrangement for ships comprises a twisted and balanced rudder blade having a slender profile and a low profile thickness and comprising a propeller facing the rudder blade. A rudder pipe is located in the upper region of the rudder blade with rudder post located therein, wherein the rudder blade comprises two superposed rudder blade sections having different heights whose front nose strips facing the propeller are offset in such a manner that one nose strip is offset to port or starboard and the other nose strip is offset to starboard or port. The two side wall surfaces of the rudder blade converge into an end strip facing away from the propeller and have different arc profiles.
A rudder for ships having a rudder blade which has a leading edge and a trailing edge. The rudder blade has two superimposed rudder blade sections; the leading edge sections of which are offset such that a first leading edge section is offset port or starboard and a second leading edge section is offset starboard or port. The first leading edge section has a port-sided offset surface which projects over the second leading edge section, and the second leading edge section has a starboard-sided offset surface which projects over the first leading edge section. A flow body is configured so that its dimensions are adapted to the dimensions of the offset surfaces. The flow body covers the offset surfaces and is arranged in the area of both offset surfaces.
A device for reducing the drive power requirement of a ship and even for not very quick ships of all types, in particular for slow, wide ships, such as tankers, bulkers and tugboats, and for improving the propeller blower stream as well as for producing a pretwist includes a front nozzle fixedly installed on the hull with fins or hydrofoils placed in the inner space thereof.
B63H 1/18 - Propellers with means for diminishing cavitation, e.g. supercavitation
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
A rudder blade for water ships is being provided, comprising: a leading edge, a trailing edge, a first side wall and a second side wall lying opposite the first side wall; and a rudder blade hub, which is arranged in a connection space for
connecting a rudder stock, wherein the connection space is provided in an interior of the rudder blade, wherein the rudder blade hub comprises a hub body, wherein the hub body comprises an inner bore for receiving a rudder stock, and a hub outer surface running in the circumferential direction; wherein the entire hub outer surface is arranged spaced apart from an inner side of the first side wall and from an inner side of the second side wall.
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
34.
RUDDER FOR WATERCRAFT WITH A BEARING CLEARANCE MEASURING DEVICE, METHOD FOR MEASUREMENT OF A BEARING CLEARANCE IN A RUDDER AND BEARING CLEARANCE MEASURING DEVICE FOR A RUDDER
A rudder (100) for watercraft (10), in particular for ships (11), is proposed, comprising a rudder shaft (14) arranged in a trunk pipe (12), a rudder blade (16) connected to the rudder shaft (14) and a bearing bushing (32) arranged between trunk pipe (12) and rudder shaft (14) as well as a bearing clearance measuring device (25), wherein the bearing clearance measuring device (25) comprises at least one sensor (26, 26a) for abrasion-free measurement of a bearing clearance.
In order to achieve a connection between a nozzle shaft (20) and a nozzle ring (10) that has the simplest design possible, while at the same time being stable, in a propeller nozzle (100) for a watercraft which comprises a fixed propeller (30) and a nozzle ring (10) surrounding the propeller (30), said nozzle ring being pivotable by means of a nozzle shaft (20), the nozzle shaft (20) is designed as a hollow body.
B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
36.
PRE-NOZZLE FOR A DRIVE SYSTEM OF A WATERCRAFT TO IMPROVE THE ENERGY EFFICIENCY
In order to further improve the drive efficiency in a propellerless pre-nozzle (10a, 10b, 10c) for a drive system for a watercraft which has a water inlet opening (12) and a water outlet opening (13) in the interior whereof a fin system (14) is located and whose inlet area has no fin system (14), it is proposed that the pre-nozzle (10a, 10b, 10c) should be configured rotationally asymmetrically.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
37.
DEVICE FOR REDUCING THE DRIVE POWER REQUIREMENT OF A WATERCRAFT
The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodies as a free end.
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
38.
RIGID SAIL FOR VESSELS, IN PARTICULAR LARGE SHIPS, AND VESSEL WITH A RIGID SAIL
In order to provide a rigid sail or aerofoil sail which has a lower overall weight, is cost-effective to manufacture and does not affect the passing under bridges, power lines or similar structures arranged over busy waters, in the case of a rigid sail (100) for vessels (10), in particular, for large ships, such as bulk carriers, tankers, car transporters or bulkers, comprising a mast (14) and a first aerofoil wing body (12) mounted on the mast (14) with a base (15) and a head (17), wherein the mast (14) is inserted through the base (15) into the first aerofoil wing body (12) and is arranged within the first aerofoil wing body (12), it is proposed that the mast (14), starting from the base (15), does not extend beyond a maximum height (21) of the first aerofoil wing body (12), in particular, less than 75% of the maximum height (21).
A device (100) for reducing the drive power requirement of a ship and even for not very quick ships of all types, in particular for slow, full-built ships such as tankers, bulkers and tugboats, and for improving the propeller blower stream as well as for producing a pretwist consists in a front nozzle (20) fixedly installed on the hull (100) with fins or hydrofoils (30a, 30b, 30c, 30d) placed in the inner space (20a) thereof.
The rudder arrangement for ships comprises a twisted balanced rudder blade (100) having a slender profile and having a low profile thickness and comprising a propeller (115) facing the rudder blade and a rudder pipe located in the upper region of the rudder blade with rudder post (140) located therein, wherein the rudder blade (100) comprises two superposed rudder blade sections (10, 20) having different heights whose front nose strips (11, 21) facing the propeller are offset in such a manner that one nose strip (11) is offset to port (BB) or starboard (SB) and the other nose strip (21) is offset to starboard (SB) or port (BB), wherein the two side wall surfaces of the rudder blade (100) converge into an end strip (30) facing away from the propeller and have different arc profiles.
In order to reduce the switching hysteresis in a dynamic positioning system (11) and/or an autopilot system (11a) for watercraft, an arrangement (12) is provided for determining a force acting on a rudder (10) for watercraft, comprising a processing unit (29), at least one measuring device (27, 28) for determining values of a physical quantity of a rudder (10), and means for transmitting the determined values of the physical quantity to the processing unit (29), wherein the processing unit (29) is configured to determine the force acting on the rudder (10) on the basis of the determined values of the physical quantity.
B63H 25/52 - Parts for steering not otherwise provided for
G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
G01L 5/13 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
In order to provide a device (100) for manoeuvring a watercraft comprising a rudder trunk (10) and a receiving shaft (11), wherein a first part (12) of the rudder trunk (10) is disposed in the receiving shaft (11) in such a manner that there is an intermediate space (14) between the first part (12) of the rudder trunk (10) and a wall (17) of the receiving shaft (12), and a second part (13) of the rudder trunk (10) projects from the receiving shaft (11), wherein the intermediate space (14) is filled with a connecting means (15) at least in certain areas and wherein the connecting means (15) clamps the first part (12) of the rudder trunk (10) over a clamping height (16, 16a), and a method for manufacturing a device for manoeuvring a watercraft, wherein the manufacturing expenditure for the rudder trunk (10) is reduced and the installation process of the rudder trunk (10) is simplified, it is proposed that the connecting means (15) connects the first part (12) of the rudder trunk (10) to the wall (17) of the receiving shaft (11), wherein the connecting means (15) is disposed surrounding an entire circumference of the first part (12) of the rudder trunk (10) and wherein the connecting means (15) is disposed at least in the lower end region (18) of the clamping height (16, 16a) and in the upper end region (19) of the clamping height (16, 16a) and wherein the length ratio between the clamping height (16, 16a) and the second part (13) of the rudder trunk (10) is at least 1, preferably between 1 and 3, particularly preferably between 1 and 2.
According to the invention a device (100) is provided for reducing the drive power requirement of a watercraft comprising a fore-nozzle (10), wherein at least one outer fin (20) projects outwards from the fore-nozzle (10).
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
44.
ARRANGEMENT TO REDUCE A PROPULSION POWER REQUIREMENT OF A WATERCRAFT
In order to provide an arrangement (20) having at least one rudder (21) and having at least one receiving space (22), formed in front of the rudder (21) in a direction of travel (F) of the watercraft (100), for a propeller (30), which arrangement makes it possible for a drive power requirement of a watercraft (100) having an arrangement (20) of said type to be reduced, it is proposed that at least one pre-nozzle (23) with at least one guide surface (24) is arranged in front of the receiving space (22) of the propeller (30) in the direction of travel (F), and at least one side fin (25) is arranged on the rudder (21).
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
To improve the hydrodynamic efficiency of a watercraft, the invention proposes a rudder trunk (100) for a watercraft (13), comprising a trunk tube (10), a receiving shaft (11) and a retainer (20) for retaining the trunk tube (10) in the receiving shaft (11), wherein: there is an intermediate space (19) between the trunk tube (10) and the receiving shaft (11) when the trunk tube (10) is situated in the receiving shaft (11); the retainer (20) comprises at least one holder element (21, 21a, 21b, 21c, 21d) and at least one holder partner (22, 22a, 22b, 22c, 22d); the at least one holder element (21, 21a, 21b, 21c, 21d) is situated on the trunk tube (10); the at least one holder partner (22, 22a, 22b, 22c, 22d) is situated on the receiving shaft (11); and the at least one holder element (21, 21a, 21b, 21c, 21d) and/or the at least one holder partner (22, 22a, 22b, 22c, 22d) protrudes into the intermediate space (19) when the trunk tube (10) is situated in the receiving shaft (11).
In order to make available an improved arrangement (10) for reducing the drive power requirement of a twin-screw ship, which arrangement (10) has a first propeller (20) and a second propeller (21) and a first guide device (30) and a second guide device (31), wherein, viewed in the forward travel direction (F) of the watercraft (100), the first guide device (30) is arranged in front of the first propeller (20) and the second guide device (31) is arranged in front of the second propeller (21), wherein the first propeller (20) and the second propeller (21) are fastened to a first propeller shaft and to a second propeller shaft, and wherein the first propeller shaft defines a first propeller axis (22) and the second propeller shaft defines a second propeller axis (23), the first guide device (30) and the second guide device (31) each have at least one fin (32, 33), said fins extending from the propeller axes (22, 23), and the fins (32, 33) of the first guide device (30) and of the second guide device (31) each extend outwards to the watercraft sides (101, 102).
B63H 1/28 - Other means for improving propeller efficiency
B63H 5/08 - Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
B63H 5/16 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recessesArrangements on vessels of propulsion elements directly acting on water of propellers with stationary water-guiding elementsMeans to prevent fouling of the propeller, e.g. guards, cages or screens
47.
RIGID SAIL FOR VESSELS, IN PARTICULAR LARGE SHIPS, AND VESSEL WITH A RIGID SAIL
In order to provide a rigid sail or aerofoil sail which has a lower overall weight, is cost-effective to manufacture and does not affect the passing under bridges, power lines or similar structures arranged over busy waters, in the case of a rigid sail (100) for vessels (10), in particular, for large ships, such as bulk carriers, tankers, car transporters or bulkers, comprising a mast (14) and a first aerofoil wing body (12) mounted on the mast (14) with a base (15) and a head (17), wherein the mast (14) is inserted through the base (15) into the first aerofoil wing body (12) and is arranged within the first aerofoil wing body (12), it is proposed that the mast (14), starting from the base (15), does not extend beyond a maximum height (21) of the first aerofoil wing body (12), in particular, less than 75% of the maximum height (21).
patents
