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Ship with enhanced performances for navigation in ice Invention relates to ship building, particularly to a craft with perfected ice breaking performances, namely to replenishment ice breaker, etc. Claimed craft has hull (1) with aft power plant provided with at least one ledge (8, 9) shape to a skeg. The latter houses at least one bladed device (10, 11). Said ledges (8, 9) incorporate two units arranged at opposite parts from the hull centreline. Bladed device (10, 11) is arranged at aft part of the ledge (8, 9). Besides, said ledge (8, 9) incorporates one or more lateral thrusting propellers (12, 12′, 12′′) to develop the water flow relative to said hull (1) between bladed device (10, 11) and craft hull, in lengthwise direction at the ledge (8, 9). |
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Invention suggests a system for oil spill response by oil spill response vessel, which has an on-board inlet opening (1) placed at water level and water conduit (3) passing from the inlet opening and containing oil separating unit mounted at water surface, at that the above water conduits leads to return water conduit (15) having an outlet opening (2). The oil separating unit includes the first separator (4) mounted in water conduit (3) in direction of water flow and made as a brush container forming dividing surface going up from water in direction of water flow and a frame module (25) mounted in water conduit next to the brush container so that it supports the brush container, the above module comprises the second separator (5) complete with a drum-type rotating brush and as well as outlet openings (26) intended to guide treated water to the return water conduit (15). |
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Method for oil collection from under ice cover of water body Method for oil collection from under ice cover of the water body includes localising stains of oil or oil product and further oil or oil product removal by pumping to the oil receiving tank, in the area of oil or oil product stain localisation a well is drilled in the ice cover, vortex with pumping unit is submerged to it through the stain area, a vortex funnel is created by vortex tube rotation in water under ice thus providing oil or oil product collection through it, oil or oil product pumping from the vortex funnel. Localisation of oil or oil product is performed under ice cover by an inflatable floating boom by means of its transportation by guided torpedos and/or underwater vehicles or by means of its placement through wells drilled along perimeter of oil or oil product stain. Floating booms are placed under ice in uninflated (flat) state, and then, upon placement, they are inflated. The area formed by the floating boom and ice cover is filled with hot air at the final stage of oil or oil product pumping. |
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Claimed warship is composed of two hulls with transom stern connected by sterns by means of controlled temporary attachment. Every hull has vertical well to house the cylinder sliding therein which accommodates the engine/engines, two-stage reduction gearbox and fin with screw propeller. Water jets or semisubmerged propellers, or Arnesson's drives, or angular thrusters, or airscrews are used as full-ahead propulsors. |
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Invention relates to system intended for transfer of hydrocarbons via channel between production and/or storage equipment and supply tanker. Claimed system comprises two spaced apart underwater structures and channel for their connection. Said structure has means to suspend appropriate ends of the rope. Channel in water featured stretched W shape and includes the means to keep it afloat. Tope mid part is immersed. Said channel includes at least one extra element to keep is afloat at free end area. Nearby connection means channel free end can float on water surface after separation from second structure. |
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Device, unit and method for fixation of underwater hatch or another detachable structure Device for fixation of an underwater hatch or another detachable or rotary structure, comprises a crossbar rod made as capable of hinged connection to a body. On the second end the rod is made as capable of making a coupling with the surface of the fixed hatch. The rotary mechanism of the rod comprises two parts, which on their first ends are hingedly connected to each other. The drive is made as coupled with the rotary mechanism. The unit for fixation of the underwater hatch, apart from the fixation device, comprises a hatch and a locking plank arranged on the surface of the hatch. The second end of the crossbar rod may be put in coupling with the locking plank. |
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Truss system of slab against vertical rocking for marine foundation Marine foundation (2) and method of slab lowering (28) are proposed against vertical rocking of a floating marine foundation (2). The marine foundation (2) comprises a floating structure (4, 6), a truss assembly (7) connected to the floating structure, and a thick (28) against vertical rocking, connected to the truss assembly. The floating structure includes a pontoon (6), located at least partially above water surface, where the marine foundation (2) is located; and at least three vertically arranged columns (4), connected with the pontoon (6) and having a large cross size compared to the pontoon connected to the column, which provides for partial displacement of the pontoon. The truss assembly (7) includes at least three separated walls (8), movably connected to the columns (4). Each wall (8) of the truss comprises at least two vertically arranged legs (10); the first leg (10) of the first wall (8), movably connected to any column (4), does not depend on the first leg (10) of the second wall (8) of the same column (4); and a cross-like fixture between at least two vertically arranged legs (10) of each truss wall (8). In the method of slab (28) lowering against vertical rocking of the floating marine foundation (2) they lower each wall (8) of the truss, forwarding at least two vertically arranged legs (10) of the wall (8) of the truss at the section of pontoon displacement, and they maintain at least two vertically arranged legs (10) of the truss wall (8) from the pontoon (6) in the lowered position regardless of legs (10) of the adjacent truss wall (8). |
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System for active stabilisation of small-size craft Claimed system comprises at least one bar with propulsor secured to the craft hull. Said bar can displace the propulsor in direction perpendicular to the heel or roll plane. The propulsor can develop the vertical thrust in counter-phase with the vector of the heel or roll. |
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Water transport means with at least one hydrofoil Invention relates to water transport, particularly to hydrofoil craft. Claimed craft comprises at least one height-adjustable hydrofoil. Craft hull has a recess to receive said hydrofoil. Said hydrofoil is secured at the lever to turn about the lengthwise axis and/or to telescope in axial direction. Drive element is arranged at said lever. Aforesaid recess receives said drive element and has flow channel for drive element to be fitted therein and driven therefrom. |
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Active appliance for motion of water composed by keel (versions) Claimed appliances comprise the hulls with built-in propulsors. The first active appliance comprises the keel-like hull to house the reversible propulsor arranged across the craft preset motion direction. The second active appliance comprises the keel-like hull to house at least two propulsors. Propulsors are directed at the right or oblique angle to the craft preset motion direction. |
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Claimed process consists in the development of ice cover breaking load. Said load is created by filling the ballast tanks with sea water, revolution of screw propellers and pre-anchoring of the vessel to the ice cover by the rope and anchor. |
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Loading pump station with double-deck for cryogenic fluid Invention relates to the shelf transport system of cryogenic fluid. The floating structure is located on the sea surface, and contains the treatment units. The tanker is on sea surface and transports the cryogenic fluids from one location to the other one. At least one cryogenic transfer line is routed from aft of the floating structure to the tanker fore to transport the cryogenic fluids from the floating structure to the tanker. At least one evaporations return line is routed from the aft of the floating structure to the tanker fore to transfer the evaporated gas from the tanker to the floating structure. The tanker fore has additional tier with deck for the fluid connection, it is located above the fore top deck. The tanker has a cofferdam. |
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Method to detect most economic optimal vessel course Finding of the economic vessel course on the basis of hydrometeorological environment determined by parameters from external sources. Calculation of the course is based on average statistics data about hydrometeorological environment on a climatic course of the vessel, which is further its "axis", the calculation basis may be the arc of the larger circle. From external sources they receive three- or five-day forecast of sea disturbance. They calculate values of wind and wave losses of vessel speed for various courses during the first, second, third days of sailing; by means of the PC they search for versions of its motion. Ends of daily navigation are connected by a curved line - isochrone, the vessel course is arranged to reach the isochrone point closest to the destination point. After a new forecast calculations are repeated. Additionally they detect wind and wave losses of vessel speed according to the value χ, equal to the ratio of summary length of vessel trajectory, passing via areas with unfavourable conditions, to the total length of the trajectory L. On the basis of the vessel route, using a simulation model of storms and weather windows with the help of standard navigation means they also calculate cycles of storms and functions of distribution of their quantity and continuous duration. |
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Shape of ship fore freeboard for operation under high-intensity heaving Invention relates to ship building, particularly, to designing ship hull fore lines. Claimed ship fore freeboard is composed of the surface of L.H. and R.H. boards converging at the stem and confined from below by ship waterline composed by ship hull cant body above waterline with complete fore lines. Ship fore freeboard boards within the waterline to the level of ship board surface top edge are composed by the board cant surfaces symmetric about the centreline plane. Waterlines of the boards lines starting from the half of section and towards the aft over the entire length of the fore are inclined to ship centreline plane through not over 60 degrees. |
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Lifeboat lowering device for ice conditions Lifeboat lowering device for ice conditions contains the lowering platform with guiding rollers on which the lifeboat with the lock device is installed, the shelter boat deck, and also the box-shaped shell where the lowering platform with the lifeboat is located. The box-shaped shell is joined by one end to the shelter boat deck by means of corrugated joint, and by the second one - to the winch cable comprised by the lowering device to provide mating of the box-shaped shell end with ice surface. |
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Marine seismic surveying in icy or obstructed water Invention relates to geophysics and can be used in seismic survey of regions covered in ice. A skeg is mounted from the stern of a towing vessel and extends below the waterline. A channel in the skeg protects cables for steamers and a source of a seismic system deployed from the vessel. Tow points on the skeg lie below the water surface and connect to tow lines to support the steamers and source. A floatation device supports the source and tows below the water surface to avoid ice floes. The streamers can have vehicles deployed thereon for controlling the position of the streamer. To facilitate location of the streamers, these vehicles on the streamers can be brought to the surface when clear of ice floes so that global positioning system readings can be obtained and communicated to a control system. After obtaining readings, the vehicles can be floated back under the surface. |
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Rescue module comprises inflatable bottom, inflatable sidewall and rood made of the film material fitted as-assembled transportation position in a cylindrical capsule. Compressed air cylinder is communicated with the bottom and sidewalls at actuation of the module. Module roof is provided with the filler neck. The piston is secured at the water feed tube lower section to displace vertically inside the cylindrical capsule located at module central section when said module is operated. The module bottom comprises the inflatable expansion elements located along the outer outline of the module lower part. The bearing float has the central bore to house the cylindrical capsule displacing vertically and including the limiting handles arranged at its outer surface. |
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Device to reduce boatplane airframe fluid dynamic drag at takeoff from water surface Claimed device comprises side and bottom skegs arranged behind the step to develop air cavities there between. Note here that side skegs can be driven by planetary electromechanical gears fitted in boatplane airframe. Air duct consists of the main air line arranged inside the structure and its outer part composed of air manifold shaped to bottom shape. |
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Water-displacing vessel with air cavity in bottom Water-displacing vessel with air cavity on the bottom is offered which contains the groove in the latter which is limited by fore step, rolling keels and aft inclined plate, comprising the cavity formation system consisting of the source of compulsory air supply and the system of air paths. Air paths are made in the cross section in the form of trapeze the inclined parts of which are fitted with holes with the step t>=0.1 B, where B is the housing width, providing cross air supply from the source into the groove cavity for creation of continuous air cavity. |
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Water bike includes floating hull, underwater wings, pedals and rudder. Bike hull is made in the form of set of three hulls fixed in centreline plane on common transversal horizontal axis. On the decks of hulls, longitudinal guides are fixed in which longitudinal arms are located with possibility of their longitudinal displacement. On the rear end of arms, vertical struts with underwater wings mounted on lower ends of struts are fixed. The wings are pivotally mounted on the struts so that the wings are capable to turn relative to transversal vertical axis. Struts of each hull are interconnected, and struts of outermost hulls are additionally connected by traverse beams on which two pedals are fixed. On the axis of hulls, flat-topped bracket is fixed. On the rudder, manual drive mechanism is installed to bring all longitudinal arms and longitudinal beam to reciprocate. |
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Simulation of ship two-stage blade propulsor in model basin Claimed process involves a rectilinear ship dummy motion with the two-stage propulsor dummy in the basin stable water. Note here that said ship dummy is coupled with tug trolley via dynamometer to measure hydrodynamic loads at ship dummy. Front stage thrust and moment at full speed is controlled by single-shaft screw dynamometer fitted on the front stage shaft. Additionally, at low speed, a single-shaft screw dynamometer is used to measure hydrodynamic loads. Note here that the propulsor first stage is simulated by the fixed screw propeller. Screw dynamometer shaft passes through the hub of the latter to the last stage dummy. Note also that mounting pitch of rear stage dummy is fixed at position corresponding to the low speed mode. |
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Invention relates to shipbuilding, particularly, to underwater anchors. Underwater anchor (1) is proposed which has hollow cylindrical body (3) passing down from the upper part (13). The upper part (13) has upper hole (15) and cover (17) to close and open the upper hole (15). The cylindrical body (3) is made capable to be inserted into seabed. The area of the upper hole (15) is at least 30% of cylindrical body cross-section area (3). The anchor includes carrying frame (5, 5') located in the upper part (13) and having central open area bounded by carrying frame (5, 5') and providing space for cover (17) movement between opened and closed positions via the supporting frame (5, 5'). The supporting frame is made capable to accept underwater equipment when the anchor (1) is installed in the seabed. |
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Quick-erected floating structure (versions) Group of inventions relates to construction and can be used for quick erection of floating structures. A structure is built on a flat ground filled with concrete and can have the shape of a sphere, a semi-sphere or any other shape. As per the first version, the structure is made from a solid soft formwork, includes a cavity either form a solid or a woven polypropylene or other strong fabric, to which liquid foamed plastic is added under pressure or air is pumped-in. Canvases are attached to each other with capronic binders, polypropylene yarn or a packing belt. Between the canvases there laid inside the cavity is flexible capronic reinforcement net, through which capronic binders, polypropylene yarn or packing belt pass. The filled structure is coated from outside with layers of liquid fibre glass or carbon-filled plastic. The structure is attached with loops to posts buried into earth. As per the second version, walls and the roof of the structure are made of a metal frame, onto which a thin layer of polypropylene material or other strong material treated with liquid fibre glass or carbon-filled plastic is applied. As per the first version, the structure foundation is made of a soft formwork. |
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Drill ship positioning anchor system Claimed system comprises anchors, anchor lines of ropes or chains and turret for connection of anchor lines located under the ship drilling well. Said system is mounted at the body on detachable bottom appliance composed of streamlined pontoon. Device to haul said appliance arranged at the ship up to the ship bottom and secured under drilling well with the help of sea fastening. Aforesaid appliance has a through cutout for frilling string, the turret being arranged at cutout lower section and there around. Pontoon hull features positive buoyancy. |
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Pontoon for surfacing sunk objects Claimed pontoon comprises casing composed of torus-shape inflatable shells fitted on water-permeable tube. The latter is composed by separate water-permeable sections. Web rings are provided with fasteners of crossbar suspension slings and pontoon crosswise lashing. Tapered lugs are fitted at the tube extreme sections. Crossbar and sling-shortening device are coupled in assembly by coupling units. Said sling-shortening device is a one-flute design. |
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Invention relates to waterborne craft, particularly, to liquid cargo vessels. Proposed liquid cargo vessel includes hull which at distance from forward to after cofferdam is divided by transverse bulkheads, inner bottom and inner boards into symmetrically positioned on either side of longitudinal bulkhead in two rows watertight compartments of cargo tanks under which ballast compartments are located between hull bottom and inner bottom which compartments are separated by watertight transverse bulkheads, between boards and inner boards are also ballast compartments. Longitudinal bulkhead located along the whole length from head to stern of hull is made watertight and fireproof. Behind the after cofferdam in the hull, diesel-generator set is installed in machine space and three cargo pumps are installed in pumping room. |
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Making of inflatable resilient keel-shaped bottom of small inflatable vessel and bottom to this end In compliance with claimed method, keel-shaped of the bottom is made and shaping webs are used. Said webs are arranged inside inflatable bottom composed of the lower and upper parts. The latter are made of resilient sheet. Keel-webs are shaped to wings and secured via connectors arranged on both sides of mirror axis in centreline plane to inner surfaces of said lower and upper parts and are interconnected over to rib of free end in its entire length. Said webs are secured in symmetry at bottom upper part centreline plane. Lower part of said webs are secured at the bottom lower keel section at the spacing larger than the upper section of webs in the bottom upper plane, or lower section of the webs are secured in parallel. |
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Hull of displacement ship-half-trimaran Body of a displacement ship-half-trimaran comprises a fore part with entrance lines of a single-hull displacement ship and an aft end with entrance lines of a trimaran, comprising a middle main hull and two comparatively narrow side hills - outriggers. The specified elements of the trimaran aft end form two tunnels between each other. Outer boards and a deck (decks) of the fore part smoothly change into the outer boards of trimaran outriggers and a deck (decks) of the aft end. In general the ship hull has smooth entrance lines corresponding to the displacement motion mode. Between the fore part and aft end there is an area of smooth mutual transition of their entrance lines, including two symmetrically arranged side sections of the bottom arranged relative to diametral plane of the ship hull, which smoothly rise along the length of the ship from the single-hull fore part to the existing water line in tunnels between elements of the trimaran aft end. |
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Vessel anchor device is proposed, comprising an anchor mechanism located on an inner deck, at least one anchor with a throat and flukes, connected to the anchor mechanism with an anchor chain, passing via the anchor chock in the form of a pipe, arranged in the vessel hull, and self-laid in a chain box located in the vessel hull. The anchor choke has a niche in the lower part for installation of flukes and throat of the anchor in-down position. The anchor is made as comprising at least three flukes, the niche of the choke for flukes and the anchor throat have cylindrical shape and depth exceeding anchor fluke height. A cover is fixed to the anchor throat at its lower side, which is designed to close the niche with inserted anchor flukes and throat. There is a stop to hold the chain and the anchor in the choke, installed between the anchor mechanism and the anchor choke. |
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Tow icebreaker to make waterway for collection of oil spill Claimed icebreaker comprises the hull composed by two icebreaking hulls and central auxiliary icebreaking hulls coupled therewith by the frame. Coupling between lateral icebreaking hulls allots their crosswise displacement relative to central auxiliary hull. To icebreaker is provided with ice pull-off wedge with its nose secured to said central auxiliary hull. Note here that it is secured to lateral icebreaking hulls via it generators articulated with said hulls to vary the wedge spot width. Wedge body has opening arranged along its generators at water surface level for passage of crushed ice and oil spills. |
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Invention relates to creation of blocks of a heat insulation tight wall from polymer composite materials (PCM) of new type reservoirs for transportation of liquid goods and liquefied gases. A block is manufactured in a single process stage using forming method of closed type. The block has a single shape from PCM, having required properties in the range of temperatures -163 ÷ +50°C. Forming is carried out by one-time impregnation of layers of dry reinforcing material by a polymer binder, creating a single bearing layer, covering at all sides the heat insulation panels, which provides for solidity of entire structure of the block and increases its strength and reliability. |
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Method of increase of vessel speed and device for its implementation Leading extremity of the bow bulb of underwater part of the vessel hull in horizontal longitudinal sections is offered to implement along the arch of circles with the radius Rh and the angle L of the circular sector of semi-contact equal to the angle φv of internal water friction at the depth h (cm) from free surface, L°=φ°v=arctg[1-Cv/(γv·h)]=arctg[1-(0.28/h)], where Cv=274.642·10-6 (kg/cm2) - specific cohesion of water, γv=981·10-6(kg/cm3) - specific weight of water, and in vertical longitudinal sections - along arch of circles with the radius Rv with the angle β of circular sector of semi-contact equal to the angle Rv of internal water friction at the depth h > 80 cm, β°=φ°v=45°. |
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Invention relates to underwater ship building and may be used predominantly in construction of nuclear submarines. Underwater aircraft carrier comprises three modules interconnected in parallel including two propulsion modules with propeller shafts. Central module is made airborne and contains flying-off deck and aircraft hangar made under the deck. Front and rear end of airborne module are made with closing holes for takeoff and landing. The airborne module may be made with elevation relative to propulsion modules. On the flying-off deck there may be at least one hatch under which an elevator is installed. |
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Invention relates to ship building, particularly, to detection of sealed bore location at ship hull submerged part biofouling, sanding up or freezing. Claimed method consists in arrangement of permanent magnets around the periphery of sealed bore. |
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Life boat protection system located at bulwark Claimed device (20) has hole (10) for protection of life boat released by gravity, said life boat being located behind said hole. Device comprises membrane (5) to close hole (10) and cutter (7) to cut membrane (5) through in emergency to rule out membrane resistance to passage of life boat through said hole. Besides, invention discloses the application of this protective device in sea water and marine stricture provided with at least one protective device. |
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For submarine masking water density is varied in submarine trace. Water density is varied by increase in its salt content and by cooling its power plant by water with salt content higher than that of outboard water and by its spillage into the trace. |
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Landing of vehicles and armoured machines to operations area For landing of armoured vehicles to operations are, these are decked on landing craft and delivered to operations area. Large landing craft of Mistral type can accommodate up to twelve armoured vehicles, each being equipped with floating craft. Armoured vehicles equipped with floating craft and decked vehicle can board the landing craft from water and surface them independently via landing craft ramp. Armoured vehicle can move by water from landing craft to operations area and self defend against air attacks from enemy sips and coastal artillery fire. Boarding the vehicle and their surfacing are performed by their built-in drives over the pontoon tail that can turn downward. |
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Large-size air intake grid with heated louvres Grid with heated louvres is made of grid modules filled with a heat-conducting compound and combined with a common frame. Heating cables are laid in different modules, combined into a common electric network and fed from a single feeder. |
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Detachable turret mooring system Invention relates to shipbuilding and concerns vessels connected with offshore hydrocarbon production. Detachable turret mooring system (1) is proposed which system includes mooring buoy (6), turret structure (3), as well as system (7) for mooring buoy locking on the turret structure, herein, the turret structure contains intermediate connecting element (4) which contains buoy locking system, where the intermediate connecting element is installed with possibility of rotation in turret structure. Invention also relates to method for vessel containing turret structure mooring to mooring buoy in which method the turret structure is made with possibility to accept mooring buoy. The turret mooring system contains turret structure installed with possibility to rotate on vessel, and intermediate connecting element installed with possibility to rotate on turret structure. The method contains steps of mooring buoy acceptance in turret structure, mooring buoy locking on intermediate connecting element and intermediate connecting element and turret structure rotation relative to each other. |
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Method for expanding and reclamation of coastland Invention relates to coastland expanding and reclamation method and can be used for carrying ground for some distance by transport ship. To expand and reclaim a coastland logistic ship, transport ship and delivery ship are used. Intake of ground excavated from sea bed under water is performed by logistic ship. The excavated ground is reloaded from logistic ship into at least one bin of transport ship. Carrying of the excavated ground stored in bin is performed by transport ship to remote unloading dump area. Using downtake pipe the ground is unloaded to underwater dump area. Using delivery ship the unloaded ground is taken and carried to coastland. |
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Sea technological ice-resistance floating platform with hull ice-breaker lines (versions) Invention discloses shape of outlines of ice breaker platform hull equipped with riser lines and turrets arranged in the hull fore, said turret allows spontaneous turn in direction of external force main vector and is fixed by anchor retention system connected with said turret. |
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Marine power generation self-contained module and respective composite vessel Group of inventions is referred to power systems supplying vessels with electric energy. A power generation module for the main vessel 1 supplies energy required for the motion of the main vessel 1. The module is made as an auxiliary vessel 2 independent from the main vessel 1; it contains an electric power installation 3. The auxiliary vessel 2 is equipped connection facilities 7 between the electric power installation 3 and the main vessel 1 and facilities 6a, 6b for fixing to the main vessel 1 to ensure its combined motion with the main vessel. The connection facilities 7 are designed to deliver electric energy to propulsors 4 of the main vessel 1. The composite vessel comprises the main vessel 1 and the auxiliary vessel 2; the main vessel comprises facilities for the placement of the auxiliary vessel. |
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Vessel with cleaner and device for directed displacement of floating objects such as hydrocarbons Invention relates to ship building, particularly, to vessels intended for cleaning of water areas. Claimed vessel (50) includes cleaner (60) and device (100) intended for directed displacement of floating objects such as hydrocarbons and installed aboard said vessel. Said device comprises two floating spaced apart guides (102a, 102b) and adjusting device (150a, 150b) for every said guide. Said adjusting device is arranged aboard vessel (50) whereat said guide (102a, 102b) is installed. Note here that said device (150a, 150b) is designed to change guide (102a, 102b) from idle position whereat it is located aboard the vessel as-folded to mid position whereat it is fixed ahead of said vessel (50, 51) and retained above water. Besides, said device changes said guide to position whereat it floats ahead of vessel (50) to force floating objects towards cleaner (60). Note also that two guides (102a, 102b) in working position diverge from their ends to their front. |
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Invention relates to ship building, particularly, to vessels intended for underwater operations. Claimed two-platform complex comprises ice-going vessel and processing equipment for inspection, construction and repair of sea structures with module for underwater docking and welding of underwater pipelines at oil and gas deposits. This complex comprise another ice-going vessel. The latter features ice breaking hull to operate in working area with underwater docking and welding module arranged thereat. |
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Front-drive vessel with aerodynamic unloading Claimed ship represents a lengthwise-coupling two-hull design. Front hull incorporates the propulsor. Rear hulls features a catamaran skeleton. Tunnel is arranged between rear hull skegs to make an aerodynamic plane. Front and rear hulls are coupled by hinge or hinges of several degrees of freedom. |
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High-speed single-hull displacement surface ship stabiliser Invention relates to ship building, particularly, to designing high-speed single-hull vessels. Claimed stabiliser for this narrow-hull ship with V-shape sharp rostrum is composed of aft hydrofoil equipped with extra support made up of side shaped props. Aft foil featured V-shape of supports in the range of 5-20 degrees and I located above the ship base plane. Foil side props increase the ship heading stability. |
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Vessel hull is provided, comprising a waterproof wall with applied waterline, underwater wings placed in its nose and stern areas, and wings are fixed directly to the wall, being flat, with arched/arrow-shaped/triangular form and are located one under another with displacement of one relative to another. In the second version underwater wings are made hollow. In the cavity there is a gas-filled shell. |
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Wave-resistant sea load platform (wrlp) Invention relates to underwater operations, particularly, to boarding of sunken large weight bulky objects in rough sea with strong current. Claimed WRLP is provided with pontoons of oval and oblong shape and features wave resistance in surface position against limited-intensity waves at partial filling of ballast tanks and higher wave resistance at complete flooding of said ballast tanks and submergence of columns by about 1.2 of the wave design amplitude. WRLP increased wave resistance results from perfected shape of columns. For handling jobs, said WRLP is provided with handling device incorporating two-link load lowering and lifting hardware and the adequate procedure for its control which allows a required margin of buoyancy and stability at lifting and transportation of cargoes. |
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Buoy for determination of characteristics of sea wind waves Device comprises a solid metal casing (3), inside of which there is a control module (1) with an optional GPS unit, a power supply source (2), a digital three-component accelerometer (15), a three-component magnetometer (17). In the lower part of the casing (3) there is a sliding anchor device (4), and also a stabilising device (5). The stabilising device (5) is made in the form of wings coupled with the casing (3) by means of hinged joints (6) and rubber shock absorbers (7). The power supply source (2) is equipped with a generator coupled with the stabilising device (5). The casing (3) in its underwater part is equipped with a damping device (14), made of an attachment, equipped with the even number of tabs. Tabs of the attachment are fixed to the buoy casing with the help of flat springs. Besides, even tabs are fixed as inclined downwards, and odd tabs - as inclined upwards. The optional GPS unit of the control module (1) comprises a four-channel receiver of satellite signals made as capable of simultaneous measurement of delta pseudo-ranges to four artificial satellites of the Earth. At the same time the receiver of the satellite communication channel comprises a navigation filter for buoy movement modelling. The casing (3) is equipped with elements (8) of the parachute system and a device (13) for transfer of information along radio and satellite communication channels. A digital three-component accelerometer (15) and a three-component magnetometer (17) are placed in a single body (16). |
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Method for weakening ice cover of water basins Invention relates to ice-technology, in particular to techniques for prevention of ice jamming and stationary objects destruction by ice floes for example on river stretch. The method includes trench 7 making on ice surface 1 by means of two powered disk cutters 5 with parallel disks which cutters are installed on a vehicle. Axis of disk cutters 5 is located over ice surface 1. Height of trench 7 is less than ice cover height. Vehicle 4 is made capable to move along upper surface of ice 1. Sledge with skids is used as vehicle 4. The skids are parallel to planes of disk cutters 5. Lower weight and higher compactness of device is achieved due to replacement of large-dimensioned and heavy caterpillar by more lightweight and compact sledge propeller. |
Another patent 2551107.