Vessel with blade paddle wheels
SUBSTANCE: stern of vessel with blade paddle wheels is made as two through water-flow channels dividing bilge into three water displacing sections. On vertical walls of water-flow channels bearings of two driving shafts with paddle wheels are installed. The paddle wheels consist of two parallel to each other solid disks with blades installed between them which blades are located on several heterodistant diameters. When wheels are rotating the blades move one after another in groups decanting water on more distant from shaft blades ensuring bumpless entrance in water at an angle of 45 degrees for them. At an exit from water, angle of blade inclination to horizon ensures accelerated water discharge under water for them.
EFFECT: creation of vessel with propulsor having large hydraulic cross-section ensuring bumpless entrance into water, absence of wave at an exit from water, creation of large support for vessel both in deep water and draft is restricted, possibility to use impact pressure of water counter flow.
5 cl, 4 dwg
Our country has the largest and most extensive network of waterways. Currently mastered no more than 10 percent of their length. But in the uncharted territories are the main natural wealth of the country. That is why currently made a decision to learn a wealth of Siberia and the Far East.
Outdated river fleet requires immediate construction of a powerful, modern river fleet high capacity, ability to operate in deep water and in shallow water. Complicate the task as a contamination of rivers and turbulent flow on small rivers and Slough ice and wave formation in the Northern latitudes, in the mouths of the Siberian rivers. In the European part of the country require expensive dredging operations or the creation of new powerful ships, able to work with limited draught.
River / sea vessels able to operate in sea conditions, river conditions are not able to work optimally, as the draught of these vessels is limited by the diameter of the propeller. You must create such a thruster, which would be able to create a strong emphasis on deep water, and under conditions of limited rainfall. Currently, more than 95% of vessels equipped polupogruzhnye screw propellers, which may not work on finely�odier. The cannons have a small pressure section and a low efficiency and therefore can't be installed on heavy courts. Paddle wheels are able to develop great focus, even in shallow water, but they work only at 40-50 rpm. The same engine goes the way of increasing the number of revolutions, and these conflicting requirements are insurmountable. Besides paddle wheels, bulky, heavy, complicated and unreliable in operation. For unstressed of water entering the slots of the wheels do swivel, but then these wheels became 25 times harder and 40 times more expensive. In addition, paddle wheels, creating a large wave over the stern, what is spent on energy. Many scientists shipbuilders, including Nizhny Novgorod Professor M. J. alferiev and N. N. Kabacinski, tried to regulate the flow of water behind them, but their designs were cumbersome and did not find application. Almost all modern engines are based on the principle of the helix, giving a spiral flow at the stern, eroding riverbanks. Nevertheless, more than 150 years the screws have a monopoly position on water transport.
The solution can be found in the development of new propulsion, discarding the water straight back, in the direction opposite to the direction of motion of the vessel. Such attempt was made by me, izobreteny� No. 2391249 dated 10.06.2010
This proposal attempts to improve the above-mentioned invention.
Created by the propeller must:
- to possess a large hydraulic cross-section;
- to provide a shockless entry into the water;
- not to make wave in the water;
- to create a large emphasis to the vessel as in deep water and limited sediment;
- to use the dynamic pressure of the oncoming flow of water.
This can be done when the transverse location of the drive shaft, which can accommodate not one propeller, as the propeller shaft, and several paddle wheels. It is necessary to streamline the flow accelerated water from the water inlet to the water in the feed. Therefore, the device proposed in the stern of the vessel is very different from existing vessels.
A feature of the ship is that the ship's hull 1 aft on the hull is made of two short section of the channels 2 and 3. On the sides and in the middle of the stern there are two side displacement sections 4 and 5 and one middle 6. They provide maintenance afloat propellers 7, 8 and 9, 10 mounted on the leading shafts 11 and 12. Cm. Fig.1, 2.
Drive shafts are fixed on the vertical walls of the channels, on supports with bearings 13, 14 and 15, 16. Effort from the motors 17 and 18 are transmitted to the drive shafts by means of intermediate shafts 19, 20, 21, 22, 23, 24 and bevel gears 25, 26, 27, 2, 29, 30 and 31, 32, 33, 34, 35, 36. Section of the channels in the input have a funnel-shaped inlets 37, 38, grilles fences 39, 40. On the bottom section of the channels is set vodoprylad sheets 41 and 42. At the entrance to the channels is set vodoprylad sills 43, 44, which spraylat swirling water wheels in the horizontal plane. The aft section of open channels. At the exit of the channels on its sides are the feathers of the steering gear 45 and 46. Above them a branch of steering gears 47, which does not allow the discharged stream to rise above the waterline and create a wave.
On top of the deck wheels can be closed with a solid glass cover that will allow tourists to watch the game of spray with the blades of the wheels, illuminated by colored floodlights. The impeller is made of planar parts. On the device it is extremely simple. I wheel no hub. Cm. Fig.3, 4. The wheels 48 are bolted to power the coil 49 on its sides. The coil itself is mounted on the splined drive shaft. If necessary, the drive shaft can be manufactured in the form of a hexagon. Then the holes in the coil must have the same shape. The blades 50 are fixed between two parallel disks. This allows you to place them on several diversity-remoted from the shaft diameters. All blades on dis�Ah are they provided input into the water at an angle of 45 degrees. It can provide a shockless entry into the water, and the accelerated release of water below the waterline. The blades of the diversity-remoted diameters are grouped in several groups, where they at rotation follow each other at short distance, passing the stream of water on the blades of the more remote orbits. Water with the blades straightening large diameter bottom leaves and thrown over the stern. Fig.2 and 3 show two coaxial wheels, the blades of which are located along two diameters of the diversity-remoted. The circumference of the blades are grouped in six groups. Wheels can be made with blades located on 3, 4, 5 or more diameters. Therefore will change as the number of blades in one group, so the number of groups on the disc. Fig.2 shows the arrangement of two propulsion systems, located at different sides of the ship. This allows you to have a good ship handling and maneuverability. The fastening of the blades on the discs allows you to place the blades in several diversity-remoted from the center of rotation diameters, which ensures efficient operation of ships under different rainfall conditions. Transverse drive shafts allows you to obtain a large area of the blades simultaneously working in channels section that provides �big emphasis, unattainable by other drivers.
Great emphasis is created on the vessel due to the direction of all accelerated water straight back, in the direction opposite to the direction of motion of the vessel. This is achieved by the ordering of water and its direction in section channels, and by paddle wheels, blades which direct the water only fast ago. The location of the blades on the discs allows them to be positioned so that the flow of water, Express in small orbits, kept the energy and momentum given to the blade more remote from the center of rotation of the orbits. This ensures the transfer of energy of centrifugal force to accelerate the water in the horizontal plane, i.e. for movement of the vessel. When you rotate the wheels the blades enter the water in unstressed mode at an inclination angle of 45 degrees. Subsequent rotation of the wheels for a moment rotates the blades in a horizontal plane, allowing a counter stream to enter the channel section. It does not create resistance to a counter stream. Upon further rotation of the wheels the blades in this group be at an angle to the incident flow of water. Most of the water is accelerated towards the open aft section of the channel. A portion of the water entrained by the centrifugal force shimmers into more remote from the center of rotation of the blade. Middle lobe passes into the water on lapastica remote, which not only accelerates, but also leads the accumulated water in the bilge water the leaves. Further rotation of the vane wheel makes this group vertical. All water is expelled through the open channel. Accumulated on the bottom of the water creates a backwater necessary for the blades to increase the density of water. The creation of backwater helps funnel-shape inlets that accelerate the flow of water due to the energy of a moving ship. When moving against the current funnel accelerates the flow of the energy of velocity head of the river. The density of the water on the blades, accelerating and discharging the water at the stern, significantly increases the efficiency of the paddle wheels. Upon exiting the water the blades are already vertical in the water with them rolled down. The bottom of the steering gear hanging in the channel, does not allow to form volnoobrazovaniye. All expedited water is directed in the direction opposite to the movement of the ship.
The efficiency of the courts with bladed paddle wheels consists of the following advantages:
1. Transverse drive shafts allows you to obtain a large area of the blades, while working in the channels section, which provides a strong emphasis unattainable by other drivers.
2. The fastening of the blades on the discs allows you to place the blades in several diversity-remoted from the center� rotation diameters, which ensures efficient operation of the wheels at different precipitation vessel.
3. Accelerate the flow of water is regulated in section channels and goes from the stern only in the direction opposite to the direction of motion of the ship, expending more energy in his movement.
4. Good security wheels both below and on the sides allows you to create vessels for operation in the littered fairways, a bit of ice and on a rampage. There is no danger of twisting cables for propulsion, like trawlers, minesweepers, tugs, vessels of technical fleet, etc., the Lateral wave is not bare paddle wheels.
5. Section TV placed directly on the bottom of the vessel, does not require the expenditure of energy to overcome the resistance of the water in the pipe when lifted to the pumping device, like a water cannon.
6. Accommodation gross lines above the waterline does not create resistance to the movement of the vessel. Transmission repairs do not require docking the vessel and allows repair of outside plant environments.
7. The ability to work bladed paddle wheels in unstressed and momentumless modes allows the use of modern engines.
The creation of courts with bladed paddle wheels will expand the area served by water transport, to eliminate the overload of work at the entrance to river ports to unload a train and a bus�road mobile, to reduce the need for costly dredging, using only a new design solution. This will give the country a huge economic impact.
1. The ship with bladed paddle wheels, consisting of the hull, engines, transmissions with guide rollers, which are located perpendicular to the direction of movement of the vessel, paddle wheels, channels section, of the steering device, characterized in that the feed vessel in the form of two cross-cutting section of the channels separating the bottom three displacement section, on the vertical walls of which there are support two drive shafts with paddle wheels, consisting of two parallel solid discs mounted between the blades located on several diversity-remoted from the shaft diameter so that the rotation of the wheels they follow each other groups pouring water on more remote from the shaft of the blade, while providing them shockless entry into the water at an angle of 45 degrees, and when you exit the water, the angle of inclination to the horizon provides the accelerated release of water below the waterline.
2. The ship with bladed paddle wheels according to claim 1, characterized in that the power of the force on the blade are transmitted through solid discs fixed to the sides of the power coil mounted on the drive shaft.
3. The ship with blade propeller number�themselves according to claim 1, characterized in that the section of the channels in the input have a funnel-shaped inlet.
4. The ship with bladed paddle wheels according to claim 1, characterized in that the bottom section of the channels is set vodoprylad sheets.
5. The ship with bladed paddle wheels according to claim 1, characterized in that the inlet section of the channel under the wheels installed vodoprylad thresholds.
SUBSTANCE: wheeled catamaran includes two floating bodies interconnected by connecting bridge, paddle-wheel or wheels, one or more engines technologically connected with paddle-wheel or wheels by means of drive, one or more rudders. Floating body has shape of not-streamlined contours in the form of irregular polygon, herewith, paddle-wheel or wheels are installed between floating bodies in its narrowest part.
EFFECT: increasing catamaran speed without increasing power of its engines due to decreasing wave resistance and increasing efficiency of paddle wheel operation.
FIELD: engines and pumps.
SUBSTANCE: invention relates to ship building and can be used in structures of ship propellers. A propulsion-steering column includes a column base, a spindle, a drive shaft that is located inside the spindle, a column turning mechanism, an angular gearbox, a streamlined nacelle fixed on the spindle and closing the angular gearbox. A screw propeller and a screw shaft are located inside the housing of the nacelle that adjoins the hub of the screw propeller and transmits torque moment to it. The hub is installed through bearings on the nacelle housing and provided with an end transmitting element. The transmitting element is attached both to the hub of the screw propeller and to the screw shaft.
EFFECT: improving operating reliability of a propulsion-steering column and simplifying replacement of a screw shaft.
4 cl, 2 dwg
SUBSTANCE: propeller contains flat surface (13.2) which passes along blade rear surface (13) and has width equal to 1/3 of blade width (13), rear radiused surface (13.1) which crosses the flat surface (13.2) and has radius R which is equal to 2/3 of rear surface width thus complementing the remaining part of rear surface. On free end of rear surface radius (13.1), contact surface (13.3) with radius of 1.5 R crosses propeller rotation plane, so that the contact surface forms angle of 3-9 degrees. The radiused surface (13.4) of outlet edge with radius of 0.5 R crosses surface located below half-thickness of blade edge of the mentioned inner contact surface(13.3) and flat surface (13.2), and is curved in direction opposite to inner contact surface (13.3). Distance from point of intersection of the mentioned radiused surfaces (13.1, 13.3) which have radii of R and1.5 R to surface where rear flat surface is located (13.2) is equal to 1/4 and 1/5 of rear surface projection width. Diameter F of rear surface (13.7) of blade (13) is within diameter value range of R400 to R650.
EFFECT: increased energy efficiency.
3 cl, 5 dwg, 1 tbl
SUBSTANCE: proposed vehicle comprises body, head, propulsor and steering complex. Hollow cylindrical screw jacket is arranged around the periphery of the body to spin there about and around its axis. Said jacket has outer laps as screw blades over the entire length of screw jacket. It is composed by three or more rectangular equal-width equal-length strips concaved or convexed relative to screw jacket rotational axis. Said strips are coiled in vertical plane in lengthwise direction and flexed in screw lines across cylindrical mandrel. Or, said screw jacket can be composed by three or more screw strips, curvilinear of various order and degree of curvature at centres located outside or inside screw jacket cross-section. Said strips are interconnected to make laps as screw blades over the entire length of screw jacket, screw lines and screw curvilinear surfaces as helical grooves concaved or convexed relative to screw jacket rotational axis with curvature centres located outside or inside screw jacket cross-section.
EFFECT: enhanced operating performances.
SUBSTANCE: vehicle comprises hull with two rows of working wells, propulsor, deckhouse and steering complex. Hollow conical screw jacket is arranged around the periphery of the body to spin there about and around its axis It is composed by curvilinear strips of various order and degree of curvature. Centres of curvature are located inside or outside jacket cross-section to make along its periphery the multistart screw surface with screw lines and helical grooves. These are inclined relative to rotational axis inside said hollow conical screw jacket. Strips feature different width increasing over jacket length from inlet to outlet. Said strips are coiled in vertical plane in lengthwise direction and flexed in screw lines across mandrel composed by paraboloid of revolution. Said jacket has outer laps as screw blades over the entire length of screw jacket.
EFFECT: enhanced operating performances.
SUBSTANCE: blade tip made as and winglet represents blade profile divided into upper and lower parts. Each part of end winglet can have fixed or adjustable angle of attack independent from angle of attack of the other part.
EFFECT: lower power losses of propeller drive, improved blade aerodynamics, increased lifting and pulling force and propeller efficiency.
SUBSTANCE: vessel aft end includes hull with above-water portion. The above-water portion has deck, steering room with steering engine and underwater portion. Propulsor is made as crawler consisting of driving and driven sprockets and shaped plates with projecting flanges. Shaped plates have the shape of paddle blades. Underwater portion of hull has projection with guides for shaped plates movement and cavities for sprockets. Rudder post is installed with rest on projection.
EFFECT: increased draught of propulsor.
2 cl, 5 dwg
SUBSTANCE: vessel propeller screw contains hub with blades placed on propeller shaft. The blades are mutually equally spaced and placed at an angle to shaft longitudinal axis. Each blade is provided with at least one flow diverter which is located on concave/convex side of a blade at an angle to its radial axis. Flow diverter size is increasing in water flow movement direction.
EFFECT: increased thrust of propeller screw.
FIELD: process engineering.
SUBSTANCE: invention relates to ship building, particularly, to icebreaker screw propeller blades incorporated with rudder propellers. Icebreaker propeller screw blade features smooth curvilinear surface and bulge in the area of leading edge. Said bulge is located within 0.35-0.85 of propeller screw radius. Blade profile depth at 0.025 of profile chord length from said leading edge makes 0.25-0.47 of the profile maximum depth. At said distance from leading edge, profile relative depth increases as spacing from propeller screw rotational axis increases. Blade profile depth at 0.05 of profile chord length from said leading edge makes 0.3-0.75 of the profile maximum depth. Blade profile depth at 0.75 of profile chord length from said leading edge makes 0.6-0.7 of the profile maximum depth.
EFFECT: higher efficiency in ice conditions.
FIELD: engines and pumps.
SUBSTANCE: hydrojet propelling agent is designed to drive high-speed vessels, ships, boats. A hydrojet propelling agent comprises a cylindrical hub with blades on it having inlet and outlet sections and a fixed cylindrical attachment. In the attachment there are fixed blades. At the inlet to the attachment the blades have axial direction in the area of blades of the hydrojet impeller - direction opposite to the blades, and at the outlet downstream the impeller they smoothly change into axial direction.
EFFECT: invention provides for higher thrust of a propelling agent and utility factor, increased stability of operation in case of air ingress and in cavitation modes.
SUBSTANCE: screw propeller comprises hub. Screw propeller allows purposeful variation of fluid parameters at blade suction and pressure surfaces. Said hub is composed of the barrel with blades secured at its inner surface. Hub walls have rows of through holes regularly made over hub perimeter at both blade suction surface and pressure surfaces. Rows of through holes on said suction and pressure surfaces are separated and communicated with separate compressed gas sources. Drive shaft is hollow and fitted in fixed sleeve to run therein, circular groove is made on the side of said sleeve facing the hub bottom part, groove bottom is connected via hole with opposite side of said fixed sleeve. Outer surface of second sleeve is aligned with circular groove nearby drive rotational axis to make cylindrical circular groove with chamber side surface facing the latter. Circular cylindrical groove section remote from fixed sleeve is connected with clearance between second sleeve end and hub bottom part. Drive shaft cavity is connected with compressed gas first source while its end if covered by first check valve and opening in fixed sleeve is connected with compressed gas second source and closed by second check valve.
EFFECT: simplified design, enhanced performances.
2 cl, 4 dwg
SUBSTANCE: invention relates to ship building, particularly to boat with main hull and at least two outriggers. Said trimaran comprises at least two adjustable-height outriggers. Under said main hull said outriggers abut on each other to make an integral rigid hull. Said outriggers are articulated with said main hull to turn independently of each other. Wings are mounted at said main hull and outrigger. Main hull or outrigger has a recess to receive said wing. Said wing is either a telescopic or a flapping deign.
EFFECT: higher stability, optimum dynamics at high speed and hydrodynamics.
17 cl, 36 dwg
SUBSTANCE: proposed hull comprises watertight wall with water line diving said wall to surface and underwater parts. At least one foil is arranged at the wall straight section on every board and inclined to waterline to displace vertically from underwater position to surface position and vice versa.
EFFECT: better propulsion of small motor vessels.
5 cl, 3 dwg
SUBSTANCE: ice breaker aft comprises ice breaking ledge rigidly secured at stem-post in the ship centre line and arranged behind rudder blade along ship motion. Top end of rudder blade turn axle extends thorough stem-post while bottom end is secured at the heel rigidly secured with keel. Said rudder blade turn axle is arranged on the side of ice breaking ledge side, said ledge being rigidly coupled by vertical prop with appropriate end of said heel to make a vertical protective frame around rudder propeller unit. Vertical prop rear edge is sharpened. Ice baffle plates are rigidly secured on both sides of stem-post at acute angle to horizontal plane at ship hull underwater surface, free ends of said plates are lowered under secured edges by at least to the level above below screw top edge. Distance from rudder blade turn axle to its rear edge does not exceed the radius of curvature described by said edge.
EFFECT: better controllability in reverse motion, higher reliability of rudder propeller protection.
3 cl, 3 dwg
SUBSTANCE: proposed vessel consists of three modules. Mail and fuel hulls are arranged, each, at hydrofoil. Main hull with fuel hull and fuel hull with gliding tug are connected for vertical displacement. Water jet turbopump inlet and outlet are aligned at front view. Outlet pipe in projection on vertical plane is inclined to gliding site at 45 degrees. Turbojet is arranged at top section of transom area and is equipped with free turbine engaged with water-jet turbopump. Proposed airfoil vessel consists of three modules. Main hull with gliding site and airfoil can displace horizontally. This vessel is equipped with high-lift device.
EFFECT: lower drag, higher hydrodynamic properties, enhanced performances.
4 cl, 3 dwg
SUBSTANCE: catamaran comprises two parallel hulls with connection elements, venting unit with drive mounted at catamaran fore and channels for air feed from the plant. Both hulls feature a flat-bottomed design. Outlet ends of said channels are directed to hull bottom at acute angle. Note here that said outlets of channels are made in said bottom as crosswise slits or rows of holes made uniformly over the bottom length.
EFFECT: higher speed, power savings in motion under water.
SUBSTANCE: collapsible catamaran comprises two floats, collapsible carcass, composite connectors and connecting fasteners. Said floats are furnished with eyebolts, crosswise stability stabilizers, fore baffle plate, lower and upper support levers. Cabin collapsible carcass consists of vertical props, lengthwise and crosswise plates. The latter are provided with sleeves and angle pieces consisting of brackets, left and right shaped angle pieces, lateral and inner angle pieces.
EFFECT: simplified design, higher strength and reliability, better mobility and stability.
2 cl, 4 dwg
SUBSTANCE: hydrocycle includes hull, engine, clutch coupling, reducing gears, control mechanisms. The hull is made streamlined, cigar-shaped, with front transverse step and flat bottom. In the upper part of hull, driver's seat is installed at the sides of which horizontal stabilisers with elevating rudders are fixed. After stabilisers, water-aerial rudder is installed. Inside the middle part of body, through cylindrical channel is made which opens to top surface of hull and ends on flat surface of bottom behind step and is covered from top and from bottom by safety grids. In the upper part of through cylindrical channel, axial-flow air blower is installed behind which antivirtex device is placed. The engine is placed in the fore part of hull, revolving reducing gear and intrachannel reducing gear are connected with axial-flow air blower via clutch coupling. On the top part of hull, T-shaped handle is installed with possibility to turn in horizontal plane and kinematically connected water-aerial rudder and right and left elevating rudders and with possibility of separate turning in vertical plane.
EFFECT: improved technical characteristics of vessel.
FIELD: engines and pumps.
SUBSTANCE: invention relates to shipbuilding and can be used also for fabrication of propeller screws for various vessels. For fabrication of the propeller helicoid screw a screw shaft is designed with a possibility of rotation, on the surface of which the blades of the propeller screw of the vessel hull are provisioned in series. The shaft is designed as two halves the end of which is hinge-jointedly placed in an active clamp. The active clamp is fixed in a middle part of a rigid cover with round surface from its bottom side and they are connected functionally with the machine for transfer of the rotation moment to them. The opposite ends of two halves of the shaft are hinge-jointedly placed in a passive clamp which is fix in the top part of the linear rigid cover with a round surface of its opposite sides.
EFFECT: decrease of speed of rotation of running screws is achieved.