Abstract

A fuel supply system according to the present invention comprises: a fuel tank in which fuel gas is stored, the fuel tank being capable of accommodating the boil-off gas of the fuel gas and purge gas that can be used for a purging operation; a fuel supply line for supplying fuel from the fuel tank to an engine; a purging gas generation part for generating purging gas suitable for use in the purging operation by using a mixed gas of the boil-off gas and the purge gas accommodated in the fuel tank; a purging line for purging the engine and a pipe with the purging gas generated by the purging gas generation part; and a recovery line connected to the purging line so that the purging gas used for the purging operation is recovered in the fuel tank.

IPC Classes  ?

• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• F17C 13/00 - Details of vessels or of the filling or discharging of vessels
• F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
• F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels

Abstract

An ammonia treatment system for an ammonia engine is disclosed. An ammonia treatment system for an ammonia engine, according to one embodiment of the present invention, comprises: an ammonia engine; an ammonia supply unit that supplies ammonia to the ammonia engine; an ammonia recovery unit that recovers ammonia from the ammonia engine; an ammonia water generation unit that generates ammonia water from ammonia gas supplied from the ammonia recovery unit; an ammonia water injection unit that injects the ammonia water into an exhaust gas; and a nitrogen oxide reduction unit that removes nitrogen oxide from the exhaust gas mixed with the ammonia water.

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
• F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels

Abstract

The present disclosure relates to a ship, and in a ship including a cargo area for storing cargo, a forecastle area provided fore of the cargo area, and an aft area provided aft of the cargo area, the forecastle area includes a fore deck dividing an interior and an exterior of a hull, and a cabin is provided on an upper part of the fore deck, wherein the cabin has a flat cross-section with a width that decreases forward toward a bow.

IPC Classes  ?

• B63B 29/02 - Cabins or other living spacesConstruction or arrangement thereof
• B63B 35/28 - Barges or lighters

Abstract

The present invention relates to a gas treatment system and a ship including same. The gas treatment system includes a reliquefaction unit for reliquefying a gaseous material discharged from a storage tank, wherein the storage tank stores at least one of a first material and a second material, the reliquefaction unit includes: a first cooler for cooling the gaseous first material by means of a refrigerant; and a second cooler for cooling the refrigerant, and the second cooler is used to cool the second material.

IPC Classes  ?

• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• B63J 2/14 - HeatingCooling of liquid-freight-carrying tanks
• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
• F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation

Abstract

According to an embodiment of the present invention, provided is an anchoring device comprising a chain compressor that includes: a body part to which a windlass part for lifting an anchor chain and a support roller for supporting the anchor chain are rotatably connected; a base part which connects the body part and a ship; and a position adjustment part for adjusting the position of the body part on the base part, wherein the windlass part and the body part are arranged on the base part.

IPC Classes  ?

• B63B 21/18 - Stoppers for anchor chains
• B63B 73/20 - Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks

Abstract

A thermally insulated tank according to the present invention may comprise: a first shell which stores liquefied gas and in which the liquefied gas is accommodated; a second shell which is disposed outside the first shell; and a heat-insulating space which is disposed between the first shell and the second shell, wherein the heat-insulating space is filled with a heat insulator, and a low vacuum is formed in the heat-insulating space.

IPC Classes  ?

• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• F17C 3/08 - Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
• F17C 13/00 - Details of vessels or of the filling or discharging of vessels

Abstract

The present invention relates to a boil-off gas re-liquefying system and a ship including the same, the system, as a system for processing a liquefied gas, which is a heavy hydrocarbon, including: a compressor compressing a boil-off gas generated from a liquefied gas storage tank in multiple stages; a condenser condensing the boil-off gas compressed in the compressor; an intercooler mutually heat-exchanging between a part of the liquid-phase boil-off gas condensed in the condenser and the rest, transferring a gas-phase boil-off gas generated by heat exchange to the compressor, and transferring the liquid-phase boil-off gas to the liquefied gas storage tank; and a liquefied gas pump pressurizing the liquefied gas of the liquefied gas storage tank, wherein the liquefied gas pump transfers a liquefied gas to the intercooler to liquefy the gas-phase boil-off gas in the intercooler.

IPC Classes  ?

• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
• F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen

Goods & Services

Control valves for regulating the flow of gases and liquids [parts of machines]; machine coupling and transmission components except for land vehicles; pumps as parts of machines, motors and engines; exhaust gas recirculation [EGR] valves for motors and engines; fuel economisers for motors and engines; fans for motors and engines; propulsion mechanisms, other than for land vehicles; turbines, other than for land vehicles; internal combustion engines for boats; electric power generators for ships; engines for marine vessels; blowing machines; pressure regulators [parts of machines]; compressors [machines]. Gas scrubbers [parts of gas installations]; gas scrubbing installations; gas scrubbing apparatus; air purifying apparatus and machines; air purifying units for industrial purposes; heating apparatus for vehicles; air conditioners for vehicles; ventilation [air-conditioning] installations for vehicles; water purification apparatus; oil purifying installations. Rudders; ships; ship ballast tanks [structural components of vessels]; funnels for ships; propellers for ships; ship propellers; ship hulls; water vehicles; apparatus for locomotion by land, air or water; cargo ships. Repair or maintenance of vessels; supervision of shipbuilding for watercraft, yachts, boats, ships and water vehicles; installation of ship interiors; ship dismantling; shipbuilding; maintenance and repair of watercraft, yachts, boats and water vehicles; maintenance, servicing and repair of vehicles; providing information relating to vehicle repair; shipbuilding and providing information relating thereto; shipbuilding; custom shipbuilding. Ship design; design of ship parts; technical consultancy services relating to marine engineering; design of computer system for ship mechanism controls; development, maintenance and repair of computer software for shipping; technical consultancy for improving ship performance and energy efficiency; design of vehicles and vehicle parts and components; design of vehicles including ship and special ship; product development for vehicle construction and for vehicle body construction including ship and special ship; vehicles technology research including ship and special ship; technical consulting in the field of shipbuilding engineering; quality checking and testing.

Abstract

An aspect of the present invention provides a method for controlling a multi-fuel engine system configured to use gas fuel and hydrogen, wherein the maximum pressure and the center of combustion in a cylinder may be detected while the multi-fuel engine system is operated, and the ratio of hydrogen to be mixed with gas fuel may be determined on the basis of the detected maximum pressure and center of combustion in the cylinder.

IPC Classes  ?

• F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
• F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
• F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
• F02D 41/30 - Controlling fuel injection

Abstract

A control right transfer system according to one embodiment disclosed in the present document comprises: a ship control unit including an onboard control unit, which is disposed inside a ship and controls sailing of the ship, a remote control unit, which is disposed outside of the ship and controls sailing of the ship, and an autonomous operation control unit, which controls autonomous sailing of the ship; an operating condition determination unit for determining operating conditions corresponding to each ship control unit on the basis of a control function of the ship control unit, a navigation area of the ship and the location of the ship; and a control right transfer unit for specifying, from among the ship control units, a first control unit, which currently controls the ship, and a second control unit, which is to receive a control right transfer request, and transferring a control right of the ship from the first control unit to the second control unit on the basis of the first control unit, the second control unit and the operating conditions.

IPC Classes  ?

• B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
• B63B 49/00 - Arrangements of nautical instruments or navigational aids
• G05D 1/227 - Handing over between remote control and on-board controlHanding over between remote control arrangements
• G05D 1/82 - Limited authority control, e.g. enforcing a flight envelope
• G05D 1/698 - Control allocation
• G06F 21/30 - Authentication, i.e. establishing the identity or authorisation of security principals
• B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
• G05D 109/30 - Water vehicles

Abstract

The present invention relates to an ammonia processing system that may comprise: a fuel storage unit in which ammonia is stored; a fuel supply unit which receives ammonia transferred from the fuel storage unit and supplies same to consumers; a fuel supply control unit which is provided between the fuel supply unit and the consumers to cut off supply of ammonia; a buffer tank which receives ammonia transferred from the fuel supply unit and temporarily stores same; a heater which receives ammonia transferred from the buffer tank and heats same; and an oxidation catalyst unit which oxidizes ammonia heated by the heater.

IPC Classes  ?

• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for
• F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
• F02M 21/04 - Gas-air mixing apparatus
• F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion

Abstract

The present invention relates to a vacuum insulated liquefied gas storage tank, comprising: an inner tank in which liquefied gas is stored; an outer tank which surrounds the inner tank; a vacuum insulation part which is formed between the outer tank and the inner tank and is filled with an insulating material to block heat transfer; and a vacuum pipe which is disposed within the vacuum insulation part and has an intake port formed, wherein the intake port may have a plurality of intake ports formed along the lengthwise direction of the vacuum pipe.

IPC Classes  ?

• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• B63B 73/43 - Welding, e.g. laser welding
• F17C 3/08 - Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
• F17C 3/02 - Vessels not under pressure with provision for thermal insulation

Abstract

The present document relates to a vent gas treatment system for ammonia propeller ship. The proposed vent gas treatment system comprises: a vent gas treatment facility configured to recover and treat ammonia discharged from a source of demand for ammonia fuel or an intermediate structure that provides ammonia fuel to the source of demand; a wastewater tank which stores ammonia water discharged from the vent gas treatment facility; and a gas pipe which returns ammonia gas generated in the tank to the vent gas treatment facility. Therefore, the vent gas treatment system can efficiently handle ammonia gas problems in a tank that not only discharges ammonia water but also stores ammonia water.

IPC Classes  ?

• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids
• F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
• B63J 4/00 - Arrangements of installations for treating waste-water or sewage
• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• B63B 17/00 - Vessels parts, details, or accessories, not otherwise provided for

Abstract

Disclosed is a foldable scaffold. The foldable scaffold according to an embodiment of the present invention comprises: a support frame supporting an object; and pillar frames located under the support frame and connected rotatably to the support frame, wherein the pillar frames each comprise a plurality of divided frames which are sequentially connected from the support frame. The plurality of divided frames are rotatably connected to one another, the height directions of the plurality of divided frames face the ground in a first state, and are parallel to the ground in a second state in which the plurality of divided frames are rotated from the first state.

IPC Classes  ?

• E04G 1/34 - Scaffold constructions able to be folded in prismatic or flat parts or able to be turned down
• E04G 1/17 - Comprising essentially pre-assembled three-dimensional elements, e.g. cubic elements
• E04G 7/30 - Scaffolding bars or members with non-detachably fixed coupling elements

Abstract

A carbon dioxide capture system for a ship, according to the present invention, comprises: a carbon dioxide capture device for removing carbon dioxide included in exhaust gas of a main engine; a low-temperature steam generation part, which exchanges heat with exhaust gas of an auxiliary engine so as to generate steam; and a low-temperature steam supply line for supplying, to the carbon dioxide capture device, the steam generated by the low-temperature steam generation part.

IPC Classes  ?

• F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
• F01N 5/02 - Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
• F02G 5/02 - Profiting from waste heat of exhaust gases
• F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
• F22B 37/06 - Flue or fire tubesAccessories therefor, e.g. fire-tube inserts
• F22D 1/40 - Combinations of exhaust-steam and smoke-gas preheaters
• F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
• F01N 3/04 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of liquids

Abstract

The present disclosure relates to a ship safety control method. The ship safety control method according to one embodiment of the disclosure may comprise the steps of: determining, on the basis of an image feature of a first image obtained by photographing a ship situation, a maritime situation of a region in which a ship is located; preprocessing the first image on the basis of the maritime situation; designating a control area in a second image on the basis of the second image generated through the preprocessing; and detecting an object and/or an event occurrence in the control area.

IPC Classes  ?

• G08B 17/12 - Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
• H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• H04N 23/61 - Control of cameras or camera modules based on recognised objects
• H04N 23/695 - Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
• G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components

Abstract

The present invention relates to a liquefied gas supercooling system for supercooling a liquefied gas using a mixed refrigerant, the system comprising: a compressor for compressing the mixed refrigerant; a separator which is provided on the rear end of the compressor and phase separates the mixed refrigerant into a gas-phase refrigerant and a liquid-phase refrigerant; a fourth line through which the liquid-phase refrigerant separated by the separator flows by passing through a first pressure reduction valve; a fifth line through which the gas-phase refrigerant separated by the separator flows by being reintroduced to a first heat exchanger, a second heat exchanger, a second pressure reduction valve, and the second heat exchanger; a sixth line through which the mixed refrigerant joined from the fourth line and the fifth line flows by passing through the first heat exchanger, the compressor, and the separator; and a freezing prevention unit for controlling the temperature of the mixed refrigerant in the fifth line or the sixth line.

IPC Classes  ?

• F17C 13/00 - Details of vessels or of the filling or discharging of vessels
• F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
• F25B 5/04 - Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
• F25B 6/04 - Compression machines, plants or systems, with several condenser circuits arranged in series
• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases

Abstract

Disclosed are a highly durable electrode catalyst for water electrolysis of seawater and a method for producing same. The electrode catalyst for water electrolysis comprises: a substrate having a network-shaped framework; and a catalyst layer formed on the surface of the framework and containing a first transition metal, a second transition metal, and a third transition metal, wherein three kinds of transition metals are synthesized into a layered double hydroxide, so that the electrode catalyst is suitable for water electrolysis in seawater due to strong resistance to chlorine corrosion, while also having improved electrical conductivity. Additionally, the method for producing an electrode catalyst for water electrolysis employs electrodeposition instead of hydrothermal synthesis requiring a high temperature and a long time and thus can produce a stable catalyst within a short time.

IPC Classes  ?

• C25B 11/075 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of a single catalytic element or catalytic compound
• C25B 11/091 - Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of at least one catalytic element and at least one catalytic compoundElectrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalysts material consisting of two or more catalytic elements or catalytic compounds
• C25B 11/052 - Electrodes comprising one or more electrocatalytic coatings on a substrate
• C25B 11/061 - Metal or alloy
• C25B 11/065 - Carbon
• C25B 11/031 - Porous electrodes
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water

Abstract

The present disclosure relates to a method and a device for optimizing ship navigation. The method according to one embodiment of the disclosure may comprise: generating recommended navigation information about a ship navigation route on the basis of navigation planning information related to the departure place and the destination place of a ship; predicting a BOG generation amount of the ship and a tank pressure value of the ship on the basis of the recommended navigation information; and acquiring optimum navigation information related to ship operation control on the basis of the BOG generation amount and the tank pressure value.

IPC Classes  ?

• B63B 79/40 - Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
• B63B 79/30 - Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
• B63B 49/00 - Arrangements of nautical instruments or navigational aids
• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• G01C 21/20 - Instruments for performing navigational calculations
• B63B 79/20 - Monitoring properties or operating parameters of vessels in operation using models or simulation, e.g. statistical models or stochastic models
• G06N 3/08 - Learning methods
• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
• F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation

Abstract

The present disclosure relates to a system for supplying liquefied gas within a ship. One embodiment of the present disclosure may provide a system for supplying liquefied gas within a ship, comprising: a liquefied gas storage tank that stores liquefied gas; a compressor that compresses boil-off gas (BOG) of the liquefied gas generated in the liquefied gas storage tank; a vaporizer that vaporizes the liquefied gas stored in the liquefied gas storage tank; and a control unit that controls a first optimal supply flow rate of the BOG to be supplied from the liquefied gas storage tank to the compressor and a second optimal supply flow rate of the liquefied gas to be supplied from the liquefied gas storage tank to the vaporizer.

IPC Classes  ?

• B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• B63B 11/04 - Constructional features of bunkers or ballast tanks, e.g. with elastic walls
• B63B 79/30 - Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels
• F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
• F17C 13/00 - Details of vessels or of the filling or discharging of vessels
• F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
• F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir

Abstract

The present invention provides a power generation device for a direct current propulsion ship based on direct current power, and a control method therefor. The power generation device for a direct current propulsion ship, according to one embodiment of the present invention, comprises: a synchronous generator for generating alternating current voltage; an active front end (AFE) converter connected to an output terminal of the synchronous generator so as to convert the alternating current voltage into direct current voltage; and an automatic voltage regulator (AVR) for controlling a field current such that the magnetic flux of a stator of the synchronous generator is maintained at a constant magnetic flux, wherein sensor for measuring the rotational speed of the synchronous generator can be omitted.

IPC Classes  ?

• B63J 3/04 - Driving of auxiliaries from power plant other than propulsion power plant
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
• H02M 1/10 - Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from AC or DC
• H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
• B63J 3/00 - Driving of auxiliaries
• H02P 101/35 - Special adaptation of control arrangements for generators for ships

Abstract

The present invention relates to a modular multilevel converter and a power system using same. The modular multilevel converter may comprise: a first converter unit having a leg according to a preset phase, wherein the leg has an upper arm and a lower arm, and each of the upper arm and the lower arm has a plurality of submodules connected in series so as to convert direct current power, which is input to an input terminal, into alternating current power having the phase and to output the alternating current power through a first output terminal; and a second converter unit that converts the direct current power, which is input to the input terminal, into alternating current power having a voltage level lower than the voltage level of the alternating current power output from the first converter and outputs the alternating current power through a second output terminal.

IPC Classes  ?

• H02M 7/483 - Converters with outputs that each can have more than two voltage levels
• H02M 1/00 - Details of apparatus for conversion
• H02M 7/493 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
• H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
• H02P 101/35 - Special adaptation of control arrangements for generators for ships

Abstract

The objective of the present invention is to provide an electric propulsion control system that has improved acceleration/deceleration and control performance and that can be linked to an autonomous navigation system. The electric propulsion control system for a vessel, according to one embodiment of the present invention, may comprise: an acceleration/deceleration control unit which receives a speed command so as to control acceleration on the basis of the output change rate of an engine of a vessel, and which limits a torque command value according to the speed command within a safety driving region so as control deceleration; and a regenerative energy control unit for estimating the generation amount of regenerative energy on the basis of the propeller speed of the vessel and a torque command generated by means of the acceleration/deceleration control unit, and controlling torque limitation of the acceleration/deceleration control unit such that the estimated generation amount of regenerative energy is less than or equal to the current load amount.

IPC Classes  ?

• B63H 21/21 - Control means for engine or transmission, specially adapted for use on marine vessels
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

The present invention relates to a ship structure comprising: a hull of a ship; and an attachment structure provided to be attached to a stern of the hull, wherein the attachment structure may include a through-hole provided to allow a fluid to flow from one side surface to the other side surface, and the through-hole may include an inlet formed through one side surface of the attachment structure; and an outlet formed behind the inlet through the other side surface of the attachment structure.

IPC Classes  ?

• B63B 13/02 - Ports for passing water through vessels' sides
• 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

Goods & Services

Inverter for land vehicles; inverters; inverters [electricity]; inverters for power supply; batteries for vehicles; large battery pack; lithium secondary battery pack; battery packs; auxiliary battery packs; medium and large size battery packs; computer software for data processing; computer software for digital information and data access; electrical controllers; electric mobile digital communication devices; computer operating system software; computer software to maintain and operate computer systems; computer operating programs; computer hardware and computer peripheral devices; downloadable database management software applications; GPS terminals; NFC terminal; data terminals; data collection terminals; pda for industrial purposes; computer e-commerce software; data collecting apparatus for ship. GPS navigation services; vehicle transport; transport; providing transportation information; transport by land; providing traffic information; providing road and traffic information; providing traffic information through vehicle navigation; car transport; physical storage of electronically stored data; depot services for the storage of vehicles; providing traffic information through computer network; truck transport; transportation of waste; stevedoring; rental of navigational systems; shipping of goods; cargo unloading; advisory services relating to the tracking of goods in transit [transport information]; providing information relating to car transport. Design of products; computer software design; design of computer software; maintenance of computer software; computer programming and maintenance of computer programs; programming (Computer -); development of computer programs; research relating to construction machinery; mechanics research; providing information on computer technology via a web site; information services relating to the application of computer networks; providing information, advice and consultancy services in the field of computer software; information services relating to the application of computer systems.

Abstract

The present invention relates to a boil-off gas re-liquefying system and a ship comprising same. The system for treating a liquefied gas of heavy hydrocarbon comprises: a compressor for compressing a boil-off gas, generated in a liquefied gas storage tank, in multiple stages; a condenser for condensing the boil-off gas which has been compressed by the compressor; an intercooler for exchanging heat between some and the rest of the liquefied boil-off gas which has been condensed by the condenser, transferring a gaseous boil-off gas generated by means of the heat exchange to the compressor, and transferring the liquefied boil-off gas to the liquefied gas storage tank; and a liquefied gas pump for applying pressure to the liquefied gas in the liquefied gas storage tank, wherein the liquefied gas pump transfers the liquefied gas to the intercooler such that the gaseous boil-off gas in the intercooler is liquefied.

IPC Classes  ?

• B63B 25/16 - Load-accommodating arrangements, e.g. stowing or trimmingVessels characterised thereby for bulk goods fluid closed heat-insulated
• F17C 6/00 - Methods or apparatus for filling vessels not under pressure with liquefied or solidified gases
• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures

Goods & Services

Metallic fuel tanks; bag hangers of metal; screws of metal; nuts of metal; bolts of metal; washers of metal; hooks [metal hardware]; keys of metal; locking mechanisms of metal; foundry molds [moulds] of metal; rings of metal; metal connectors; clamps of metal; machine belt fasteners of metal; clips of metal for cables; bindings of metal. Electric pumps for swimming pools; electrically operated brushes [parts of machines]; mechanical stamping machines; vending machines; gas pumps (gas station equipment); dethatchers [machines]; drive devices for opening and closing vehicle doors; skid-steer loaders; stacking machines; cranes; cargo handling machines; backhoe loaders; bucket for backhoe loaders; excavator parts; bulldozers; payloaders; front-end loaders; wheel loader; wheel loader fittings; tools [parts of machines]; rubber tracks being parts of crawlers on construction machines; dust protective units for construction machines; foundation work machines; concrete shredders; civil engineering machinery; agricultural machines; skid steer loaders for agricultural purposes; cylinders for machines; fuel injection devices for internal combustion engines; igniting devices for internal combustion engines; motive power machines (other than for land vehicles); filters for motors and engines; reduction gears being parts of machines; hydraulic controls for machine and prime movers; pneumatic controls for machines, motors and engines; hydraulic controls for machines, motors and engines; power transmissions and gearings (other than for land vehicles); cams being parts of machines; cranks [parts of machines]; shock absorbers for machine (other than for vehicles); braking devices for machine (other than for vehicles); rings other than for land vehicles (parts of machines); filters (parts of machines); drums [parts of machines]; bearings [parts of machines]; rinsing machines; mechanical parking systems; machines for processing plastics; 3D printers; robotic vacuum cleaners; industrial robots; robot loading devices; handling machines, automatic [manipulators]; handling apparatus for loading and unloading; welding electrodes; sericultural machines; motors and engines [except for land vehicles]; rubber tracks for skid-steer loaders. Electronic keys; sensors for engines; measures; tire pressure sensor; battery starters; electrical controlling devices; battery charge devices; plug connectors; batteries; remote control apparatus for industrial automation instruments; factory automation software; educational software; computer programs [downloadable software]; application software for smart phone; computer software to maintain and operate computer systems; data input/output module for industrial automatic instrument; data collecting apparatus for industrial automatic instrument; computer monitor for industrial automatic instrument; electronic control systems. Wheelchairs; parachutes; traction vehicles; forklift trucks; air pumps for forklift trucks; radiators for forklift trucks; mud flaps for forklift trucks; exhausts for forklift trucks; mufflers for forklift trucks; tires for vehicle wheels; suspension systems for vehicles; brake systems for vehicles; tractors for agricultural purposes; diesel engines for construction vehicles; motors for land vehicles; military vehicles for transport; doors for vehicles; vehicle bumpers; seat belts for use in vehicles; fuel tanks for vehicles; hoods for vehicles; bodies for vehicles; seat covers for vehicles; steering wheels for vehicles; vehicle seats; mudguards; apparatus for locomotion by land/air or water; seat belts for use in vehicles. Stationery; writing instruments; vinyl for wrapping; money clips; boxes of paper; shopping bags of paper; catalogues; manuals [handbooks]; stickers; printed matter. Advisory and consultancy services relating to import-export agencies; import-export agency services; retail services for backhoe loaders; retail services for wheel loader; retail services for wheel loader fittings; retail services for forklift trucks; retail services for tractors; retail services for skid-steer loaders; retail services for cargo handling machines; retail services for agricultural machines; business intermediary services relating to mail order by telecommunication for construction equipment. Repair of braking devices; rental of construction and building equipment; providing information about rental of construction and building equipment; construction; construction engineering services; rental of construction vehicle; rental of construction machines and apparatus; providing information relating to construction machines and apparatus; rental of equipment and machine for the civil engineering construction and construction purposes; installation, maintenance and repair of measuring apparatus; repair or maintenance of excavators; maintenance of excavators; repair and maintenance of motor vehicles and parts thereof; installation, maintenance and repair of loading and unloading machines; vehicle battery charging; maintenance, servicing and repair of vehicles; painting of vehicles; installation and maintenance of transport machinery; repair or maintenance of loading-unloading machines and apparatus; repair of fork lift trucks; repair or maintenance of apparatus for loading and unloading; repair or maintenance of construction machines and apparatus; installation of construction machines and apparatus; repair of construction and agricultural machinery; repair or maintenance of construction equipment; repair or maintenance of agricultural machines and implements; installation of air pollution control facilities; installation, maintenance and repair of equipment and apparatus for use in road building; repair of industrial waste treatment machines; repair or maintenance of water purifying apparatus; provision of oil hydraulic equipment repair information; installation, maintenance and repair of hardware for data processing apparatus; maintenance and repair of control systems for radio systems and networks; installation, maintenance and repair of apparatus for distributing electricity; installation, maintenance and repair of batteries and accumulators; cleaning of buildings, industrial sites and building sites; vehicle cleaning; providing information relating to vermin exterminating, other than for agriculture, forestry or horticulture; shoe cleaning; laundering; tuning of engines for motor vehicles. Transport/storage and packaging of goods; warehousing; loading and unloading of goods; rental of loading-unloading machines and apparatus; renting of vehicles; vehicle leasing services; rental of vehicle equipment and accessories; porterage; cargo forklift rental; storage of construction machines and apparatus; storage of transport machinery for industrial purposes; storage of agricultural machines and apparatus and parts thereof; depot services for the storage of vehicles. Treatment of industrial waste. Design of parts of machines; design of mechanical and micromechanical components; design of machines and apparatus; mechanical drawing; draftsman's services in the nature of technical drawing; corporate logo graphic design services; design of heating and cooling apparatus; design of devices intended for protein analysis; consultancy services relating to design; designing of construction equipment (including backhoe loaders and wheel loader); designing of transport apparatus (including forklift trucks, skid-steer loaders and tractors); design of factory automation equipment; design of vehicles; design of parts for vehicles; design of environmental protection facilities; software design and development; updating and maintenance of computer software; engineering services in the field of environmental technology; research in relation to technology for construction purposes; consultancy in the field of office and workplace automation; inspection of industrial installations; inspection services for new and used vehicles for persons buying or selling their vehicles.

Goods & Services

Rheostats; electric relays; electric circuit closers; electrical reactors [inductors]; stage lighting regulators; electrical connection boxes; switchboards; distribution boards (electricity); distribution boxes (electricity); branch boxes (electricity); cell switches (electricity); solenoid valves (electromagnetic switches); inductors (electricity); induction voltage regulators; inverters (electricity); terminals (electricity); transformers (electricity); electric switches; armatures (electricity); electric resistances; electric converters; electric contacts; electric current control devices; current limiters; connectors for electric lines; wire connectors (electricity); voltage surge protectors; chargers for electric batteries; local switches (signalling lights); current rectifiers; commutators; control panels [electricity]; circuit breakers; condensers (capacitors); rechargers for electric accumulators; lightning arresters; anti-interference devices (electricity); circuit closers; rotary converters; electric accumulators; solar batteries; watt hour meters; electric loss indicators; electromagnetic measuring detectors; wattmeters; ammeters; voltmeters; circuit testers; junction boxes (electricity); terminal boxes; communications apparatus for ships; indicating lamps for switchboards.

Goods & Services

Tractors; fork lift trucks; tractors for agricultural purposes; passenger ships; drillship; oil ships, namely, oil tankers; container ships; cargo ships.