Floating craft of kovalev is |
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IPC classes for russian patent Floating craft of kovalev is (RU 2469904):
 Ship electric power plant (versions) / 2458819
Invention relates to ship building, particularly, to modification power generators with frequency converters and propulsion motors. Proposed power plant is available in two versions. In compliance with first version, power plant comprises propulsion diesel or turbine and main sync generators with stator windings connected to feeder switchboard, frequency converters including rectifiers and inverters with their inputs connected to main switchboard feed line and their outputs connected to propulsion motors, standby diesel generator with stator winding connected to standby switchboard feed line. Stator of every main sync generator is furnished with two or more isolated identical three-phase windings with linear voltages at proper angle. Main switchboard has three-phase feed lines, each being connected to main generator stator three-phase windings with liner voltages at proper angle. Outputs of rectifiers are connected to multilevel inverter inputs. In compliance with second version, stator of every main sync generator is furnished with two or more isolated identical three-phase windings with phase-shifted like voltages.
 Method of limiting spinup of gas turbine unit free power turbine in starting it in propulsion unit drive / 2449918
Invention relates to marine power plants equipped with gas turbine engines. Proposed method consists in using one of driven actuators as braking element. Propulsion unit is selected to make said braking element. Propulsion unit is set to position ''stop''. ACS sends starting signal to gas turbine engine. Parameters of said mode are registered and analysed. In case tolerable spinup parameters are exceeded, actuation system controlled coupling electrically driven valve is switched on to connect propulsion unit to turbine. In case turbine rpm reaches limitation tolerances and their derivatives in time, changing over into free running mode is considered completed.
 Power device with double synchronisation / 2441306
Power device may have the first generator plant with the first motor connected with a drive with the first generator, and the second generator plant with the second motor connected with a drive to the second generator. Besides, the power device may have a common bus and a control unit interacting with the first and second generator plants. The control unit is designed to delay directing power from the second generator to the common bus until the first and second motors are not mechanically synchronised to a significant extent.
Power device with double synchronisation / 2441306
Power device may have the first generator plant with the first motor connected with a drive with the first generator, and the second generator plant with the second motor connected with a drive to the second generator. Besides, the power device may have a common bus and a control unit interacting with the first and second generator plants. The control unit is designed to delay directing power from the second generator to the common bus until the first and second motors are not mechanically synchronised to a significant extent.
 Motor boat / 2440276
Invention relates to ship building. Motor boat comprises hull, cabin, power plant, forward and reverse reduction gearbox, disengaging coupling, propeller screw and internal control station. Power plant represents a rotary-piston diesel including frame, horizontal cylinder stopped by front and rear covers with aligned inlet and discharge openings communicated via pipelines with exhaust tubes and rotary air blower. Said cylinder accommodates Z-shaped rotor with seals make integral with the shaft with ends fitted into openings of said covers. Rotor opposite ends are provided with triangular ledges with their apices facing the side opposite to rotor rotation. Pistons with seals made up of segments with their spherical surfaces turned to cylinder inner surface are arranged on rotor opposite sides to displace radially thereabout. Every piston has ledge and inclined guide to enter the slot, and rotor inclined channel. Rotor and pistons are mounted in transverse plane with respect to the shaft. Pistons with rotor make two combustion chambers furnished with injectors connected with fuel feed system. Rotor free ends carry flywheel, air blower rotor and drive gear to engage with high-pressure fuel, oil and water pump drive gears. Starter gear engages with flywheel rim.
 Method and system to optimise ship power supply operation / 2415773
Invention relates to ship power supply system. Invention covers operation of ship power supply system Proposed method comprises producing computer-base simulation model of the ship optimised in terms of efficiency of fuel consumption. To this end, equations are selected from the set of equations describing ship main components and design characteristics and data from the set of the set of characteristic data of the ship main components and design are selected. Proposed system comprises processor, data storage incorporating simulation model, set of transducer to control ship parametres.
 Ship two-shaft power plant / 2404086
Invention relates to ship building. Ship two-shaft power plant contains cruise and boost engines. Boost engines are installed coaxially with propeller shafts and connected with them via cruise-boost planetary gears. The said gears contain angular gears and are interconnected via angular drive of cruise engine. The gears are connected by means of slip couplings. Cruise engine may be located between two propeller shafts or boost engines. Cruise and boost engines can transmit torque to one or both propeller shafts at the same time. Engines and gears are installed on damped platforms.
Ship two-shaft power plant / 2404086
Invention relates to ship building. Ship two-shaft power plant contains cruise and boost engines. Boost engines are installed coaxially with propeller shafts and connected with them via cruise-boost planetary gears. The said gears contain angular gears and are interconnected via angular drive of cruise engine. The gears are connected by means of slip couplings. Cruise engine may be located between two propeller shafts or boost engines. Cruise and boost engines can transmit torque to one or both propeller shafts at the same time. Engines and gears are installed on damped platforms.
 Stern gear / 2397106
Invention relates to ship building and can be used in ship stern gears incorporating plain bearings arranged horizontally. Stern gear incorporates plain bearing with crescent lateral channels and shaft mounting inside stern gear. Said crescent channels are inclined to bearing lengthwise axis at the angle that allow work load area on bearing rear end within angle making at least 90°. Besides lateral crescent channels can have crescent channels at upper and lower parts.
 Stern gear / 2397105
Invention relates to ship building, particularly to stern gear ships used in shallow water and water containing abrasive particles. Stern gear comprises propeller shaft, protective jacket, propeller screw with its hub secured on propeller shaft flange or cone and lubrication system consisting of water cleaning system and impeller pump. The latter comprises intake branch pipe arranged directly nearby stern shaft bearing and furnished with stiffening ribs that make lengthwise guide channels. Intake branch pipe end is provided with movable sealing gasket. Two-piece split impeller pump has its halves that can be bolted together.
 Ship / 2463204
Invention relates to ship building. The ship comprises hull where haulage chain drive with links is installed. On the links, bafflers and shells are mounted. Lower part of chain is submerged. In the hollows formed by shells and baffles located on submerged part of chain, water is closed.
 Hydro-jet / 2452654
Hydro-jet comprises combustion chamber, expansion (hydraulic) chamber, hydraulic valve and nozzle assembly. Expansion chamber is arranged below water level. Combustion and expansion chambers are communicated via one or several valves.
 Device to exploit sea wave power / 2446984
Invention relates to ship building. Proposed device comprises pontoon 12, propulsion motor 3, propeller screw 4, and towing device 5. Pontoon features flat shape in the form of polygon in plan. Pontoon inner chamber in horizontal plane is divided into bottom chamber 55 and top chamber. Bottom chamber is filled with air 24 and has bottom 54 made from elastic material. Top chamber 61 is tightly divided into subsections 14-21, their quantity making paired number equal to that of faces 56 in pontoon. Subsections are filled with fluid 23 (50% of their volume) and air (50%). Top chamber diametrically opposite subsections are connected by couplings-pipelines 25 and air lines 38, 44. Said couplings-pipelines incorporates low-pressure hydraulic turbine 28, hydraulic valves 29-32, electric generator 29 and coupling. Air lines are provided with unit 45 designed to vary airflow direction, air turbine 37, air valves 46-49, safety valves 58, electric generator and coupling. Power from electric generators 27, 36 is fed to motor to drive propeller screw.
 River vessel / 2440913
Invention relates to river vessels. Proposed river vessel comprises free running coupling 22 arranged in wheel hub 23, hydraulic pump 6 operated from kinetic power of river water stream flowing via return valve 47 and hydraulic pump 12 driven by ICE 9, hydro pneumatic accumulator 38 and hydromechanical accumulator 39 communicated with pipeline that communicates hydraulic engine (11) with hydro pneumatic accumulator 38 and hydromechanical accumulator 39, control valve 34, hydraulic propellers 36 and water propellers 17, 18 located above water surface when ship is moored. Said kinetic power of river water stream is used to drive proposed vessel.
River vessel / 2440913
Invention relates to river vessels. Proposed river vessel comprises free running coupling 22 arranged in wheel hub 23, hydraulic pump 6 operated from kinetic power of river water stream flowing via return valve 47 and hydraulic pump 12 driven by ICE 9, hydro pneumatic accumulator 38 and hydromechanical accumulator 39 communicated with pipeline that communicates hydraulic engine (11) with hydro pneumatic accumulator 38 and hydromechanical accumulator 39, control valve 34, hydraulic propellers 36 and water propellers 17, 18 located above water surface when ship is moored. Said kinetic power of river water stream is used to drive proposed vessel.
 Method for convertion of sea current force into ship propulsion force / 2422325
Invention relates to water transport and concerns technique for conversion of natural energy specifically energy of sea currents and using it for ship propulsion. Method for conversion of sea currents energy into ship propulsion force consists in flowing around by sea current several circular cylinders with vertical axis of rotation which cylinders are installed in transversal through channels of ship hull. Herewith, circular cylinder is rotated clockwise when sea current comes from the left board and counterclockwise when sea current comes from the right board.
 Device to convert sea current force into ship propulsion force / 2415772
Invention relates to ship building and pertains to devices to convert sea current forces into ship propulsion forces. Proposed device comprises ship hull, several hollow annular cylinders that make rotors arranged to rotate about vertical axes, rotor electric drive, appliance to reverse rotor rotation, power source, a storage battery, and sip propeller screw electric drive. Ship hull is provided with several crosswise through channels to accommodate rotors arranged so that their lengthwise axes are aligned with ship lengthwise axis, while their crosswise axes are shifted from through channel crosswise axes by magnitude equal to half the rotor diametre. Opening between through chamber sidewall and rotor on bow side is smaller than that on ship stern side. Crosswise through channel cross section may have rectangular shape with its height exceeding its width.
 Lifeboat with propulsion device and lifeboat indirect application / 2397104
Invention relates to shipbuilding, particularly to rescue floating appliances. Proposed lifeboat comprises propulsion device incorporating electric current generator. In compliance with one version, stator is secured in lifeboat, while rotor can oscillate about its axis driven by waves acting on lifeboat. In compliance with another version, rotor is arranged in lifeboat while stator, suspended on rotor shaft, can oscillate about its axis driven by waves acting on lifeboat. Rotor in first version and stator in second version are statically unbalanced because of eccentric shift of the center of masses from axis of rotation. Generators may be arranged in lifeboat in lines along its axis with their axes either parallel or perpendicular to lifeboat axis. Proposed lifeboat can be used for electric power generation aboard the ship.
 Pitch-driven ship and pitch drive propulsor / 2392177
Pitch-driven ship is a ship exploiting pitch energy to drive it at sufficient water heaving. Pitch-driven propulsor comprises elasto-vibrating wing that makes a propulsion generator. Said wing oscillates when ship hull pitches and is fitted on stream-lined posts-holders arranged below ship hull at preset depth. Water heaving at said depth can be considered zero, not decreasing the difference in vertical velocities of the wing and water (wing propulsion varies with square difference). To reach maximum wing propulsion, proposed propulsor is arranged nearby ship edge. Effect of separate wing increases if propulsor is mounted on every edge of the ship. Note that, in this case, propulsion and alternating acceleration are smoothed. Pitch-driven propulsor design is distinguished for by the number of posts-holders, i.e. one or two, and propulsor can be made lifting, rotary or fixed. Also there can be retractable wing extensions and wings can be made folding. Note that wing halves can vibrate independently. Proposed ship is with furnished with two pitch-driven propulsors. Flat horizontal flaps can be arranged on ship edges, nearby deadline, and screw propellers can be used in low heaving conditions.
 Ship / 2391248
Invention relates to ship building. Ship comprises hull accommodating ship drive. Hull bottom accommodates drive sprocket, traction chain with chain links whereto buckets are secured. Every said bucket has walls, flexible bottom and cover mounted on pivot joint. Chain upper part accommodates guides for chain links to move therein. Bucket flexible bottoms are directed along chain travel direction. Chain upper run is partially submerged.
 Ship propulsor / 2467916
Invention relates to ship building. Proposed propulsor is arranged at astern the ship. It comprises through duct and working member. Said through duct is shaped to slot with inlet and outlet. Said working member is arranged in said through duct. Said outlet has horizontal rectangular edges with constant height there between. Horizontal shaped wings are arranged inside said outlet to extend said through duct. Relation of distance between inner walls of said horizontal flat shaped wings and outlet height varies from 1.15 to 2.5.
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FIELD: transport. SUBSTANCE: floating craft contains engine kinematically connected with propeller. The engine is made as rotor with vertical rotation shaft. The rotor is equipped with vertical and horizontal blades. Plane of undisturbed water surface is plane of symmetry for blades. EFFECT: possibility to use energy of surface waves and currents for moving floating crafts over water surface. 2 dwg
The invention relates to a device to move on the water surface - swimming tools and can find application in shipbuilding. Known swimming vehicle in which the engine is man, the torque using the pedals horizontal shaft kinematically connected with the propeller - propeller screw (Japanese journal Kazi, No. 1, 1993). The disadvantage of this means swimming is a low power motor - muscular system. Known taken as a prototype swimming facility (auth. St. USSR №1743990 A1, IPC B63H 1/36, bull. No. 24 of 1992), in which the power mechanism (engine) kinematically connected with the propeller - blade, which makes oscillatory motion in the plane perpendicular to the axis of the swimming facilities, creating traction force. Thus the kinetic energy of rotation of the working shaft of the power engine (motor) is converted into kinetic energy of the translational motion of swimming facilities. The disadvantage of the prototype is the need to use liquid fuel, if the power mechanism is in the form of an internal combustion engine, or use batteries if the power mechanism is in the form of an electric motor. The disadvantages of the prototype are also environmental pollution by products of fuel combustion, noise what s the impact on the environment. The aim of the invention is the possibility of use for engine, kinematically associated with the propulsion, the energy of surface waves of different origin - wind waves, swell waves and energy flows. This goal is achieved in the construction of swimming facilities, equipped engine, kinematically connected with the propeller, so that the motor is made in the form of a rotor with a vertical rotary shaft, provided with horizontal and vertical blades, for which the plane of the undisturbed water surface is a plane of symmetry. Swimming means comprises fixed to the transom 1 hull vessels of the frame 2 with the bushings 3 and 4. In bearings 5 and 6 of the frame 2 has a rotor 7 with the rotary shaft 8, provided with a vertical 9 and 10 horizontal blades and the rotary shaft 8 through increasing the number of revolutions of the angular gear 11 is kinematically connected with the working shaft 12 of propulsion, such as propeller 13. The frame 2 is equipped with a tiller 14. The proposed invention operates as follows. For his move on the water surface proposed swimming tool uses the kinetic energy of surface wind waves, swell waves and surface currents in rivers, lakes, seas and oceans. When contact is made in the us with the rotor 7 is a cross-flow water 9 vertical and horizontal 10 blades with the emergence of on their surfaces forces, resulting in a rotation of the rotor 7 and the rotary shaft 8. When performing blades 9 and 10 with a rounded leading edge and a sharp trailing edge (Fig 1 and 2), the rotor 7 rotates in the direction from the pointed edges of the blades 9 and 10 to their rounded edge. In the volume of the wave motion of the water particles occurs along closed trajectories, which can be divided into four characteristic plot: - horizontal translational over near the crest of the waves, - horizontal return period near the sole of the waves, - vertical standpipe for in front of the waves, vertical lifting over in the back of the waves. The placement of the blades 9 and 10 symmetrically to the plane of the level of the undisturbed water allows - vertical blades 9 to absorb the kinetic energy of the direct horizontal flow at the top of the wave and reverse horizontal flow at the foot of the waves, and the wrap vertical blades 9 will cross with the appearance on their surface forces, torque rotor 7 and the rotary shaft 8, - horizontal blades 10 to absorb the kinetic energy of the water particles vertical standpipe flow in front of the wave and the vertical lifting of the flow in the rear part of the wave cross flow vane 10 and the appearance on their surface forces, torque rotor and the rotary shaft 8. As a result, any trajectory of the movement of water particles in the wave volume is implemented by transferring the kinetic energy of the waves of the blades 9 and 10 of the rotor 7 and the rotation of the rotary shaft 8, through which the kinematic relationship of the angular gear pair 11 is transmitted to the shaft 12 of propulsion, such as propeller 13, providing for the movement of vessels on the water surface. The rotor 7 having the properties of the flywheel, retains its rotation after the interaction with the wave before the next wave. As a result, the rotation of the rotor 7 is continuous and one-directional. In the interaction of the rotor 7 with the surface for the kinetic energy of the horizontal flow is perceived vertical blades 9, and the kinetic energy of the vertical deviations of the stream and its eddies of perceived horizontal blades 10. The rotation of the rotor 7 is also continuous and one-directional. The rotor 7 with a diameter of 110 cm and a height of 50 cm was tested on the waves up to 10-12 cm and stationary for a flow rate of up to 1 meter per second. Tests were carried out for three structural variants of the rotor 7: the rotor only with vertical blades 9, the rotor only with horizontal blades 10, - rotor with vertical and horizontal blades 9 and 10. In all variants was obtained epreryvno unidirectional rotation of the rotor 7 with a speed of 15 revolutions per minute. Test shot on video. Tiller 14 allows you to rotate the frame 2 with the rotor 7, the shaft 8 and the water propeller - propeller-screw 13 - relative to the longitudinal axis of the swimming facilities. Turn frame 2 tiller 14 in the sleeve 3 in the horizontal plane allows the twists and turns swimming facilities, and the rotation of the frame 2 in a vertical plane in the sleeve 4 makes it possible to raise the frame 2 when approaching a sloping shore to prevent damage to the propulsion device 13 such as propeller on the bottom. In the proposed design of swimming as the mover 13 can be used not only prop, but other known types of propulsion - paddle wheel, wing propeller fin propulsion, jet propulsion and other The advantages of the proposed swimming facilities are no need to use energy sources - fossil fuels, electricity, absolute environmental cleanliness and quiet, which makes its use is preferred in relation to the inhabitants of the aquatic environment, which also have the right to a comfortable existence as the ground-dwellers. Swimming tool, equipped engine, kinematically connected with the propeller, characterized in that the engine is made in the form of ro is ora with a vertical rotary shaft, equipped with vertical and horizontal blades, for which the plane of the undisturbed water surface is a plane of symmetry.
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