Amphibious ship running on compressed air flow

FIELD: transport.

SUBSTANCE: ship hull aft lower section bottom, ahead of the rudder, has lengthwise ledged skewed towards the fore section and the blower air intake channel shaped to impeller. Air is fed from impeller nozzle to under the ship bottom at an angle. Said ledge is located aft lower medium part at the bottom centre to make two air channels on both sides between said ledge. Moving horizontal partition on the shaft is additionally fixed behind the impeller nozzle to extend the air channel towards skewed ledge. Rotary board is secured at horizontal shaft is secured to the bottom in the area of said ledge with air channels to abut on ledge bottom in closed state. Guides composed of ledges made up of two interconnected vertical plates are secured at outer side of ship boards. Rudder with board comprises extra second board articulated with and spring-loaded to the first board to turn in vertical plane.

EFFECT: smooth start and run at low speeds, better navigability and mobility.

2 cl, 8 dwg

 

The invention relates to a device that increases the efficiency of dynamic air cushion vehicle formed by blowing compressed air into primocanale fastened under the bottom of the vessel, and the lifting force generated by the jet from the impeller, which is mounted on the axis of rotation, at an angle in the housing of the bow, and can be used as a vehicle for water transportation, Snowmobiling, and move on the earth.

Famous winged with wing, horizontal and vertical tail, landing gear, fuselage, propulsion and starter motors, United with the corresponding Energoprom, thus starting the propeller is located in front of the front edge of the wing and the forward fuselage, the inlet channel is located above the nozzle, the lower part of the fuselage at the location of the nozzle is equipped with a tilting mechanism front flap made, with at least one transverse slit, equipped with a shutter, which is equipped with a drive of its deviation (Patent RU 2297933, CL B60V 1/08, 2007).

The disadvantage of this device is the design complexity, low efficiency and low air pressure due to the fact that the output nozzle, overlapping flap that directs the air flow under the bottom of the vessel, he smashes into the liquid across the entire width of the bottom of the vessel. Resulting in insufficient �Thamna force which cannot be created neither in common nor in theoretical sense. Thus, the area of the bottom perceives high costs of energy on the creation of the airbag, there is no directional compressed stream from the engine, for example, applied from the rotor, calculation methods which are not designed to generate high pressure air, like a compressor or impeller. Also known has the disadvantage that, to generate the desired thrust value at an acceptable size of the device have to spend more power; usually just lift force cannot be created over time without the use of the flow primocanale compressing the compressed air to the lower end of the stern of the ship, as if there is no air longitudinal layer of air along the entire length between the bottom and the supporting surface to create at the start of the movement, as the placement of the propulsion device in the form of an impeller located in a vertical plane at an angle to the bottom of the vessel to directly create such a stream that entered primocanale, the ledge, which is placed at the level of the bottom and cut at an angle towards the rear. Thus, it is inefficient in operation.

Known devices closest to the claimed is sa air�and in the form of transport with the air screws creating air pressure under the floor and moving vehicles, with a skirt, holding the air under the flat bottom and the floats that support the transport on the water, while the bottom is made of pieces from different angles to position underneath the rotating rings with wing accents, creating a dynamic pressure on the relevant part of the bottom with ekranoplanes effect of jet pressure on the swinging sash, located on the front of the transport (Patent RU 2478502, CL B60V 1/04, WV 15/00, 2010).

The disadvantage of the prototype is, as well as other known devices of similar purpose, the creation of the airbag, and traction is not effective enough at starting or low translational speed of the vehicle, because the installation of such engines cannot implement under the vessel formation of the compressed pneumopathy in the form of jets, which would try to ensure the ship at the start of the movement. That is, the known technical solutions cannot be used in a multiple mode because of the huge costs of the known motor in the acceleration of the ship up to the speed required at the same time and for its operational separation in the movement from the support surface. The device inserts and hinged shutters are not designed to create a powerful jet and getting into primocanale, exit �ozdoba which is connected only across the transverse width of the bottom and flow, expands, and hits directly into the thickness of the water flow (the support surface). The ratio of the specific thrust and lift force are low, and have to expend more power. In addition, it is associated with the use of engines, propellers, which are unable to generate sufficient reactive power to fill with compressed air free space of pneumocolon, when creating a ledge with an oblique angle from the stern of the vessel and thereby at the same time the lack of vessel traffic at the start or at low speed, i.e. all the energy is spent on the expansion of air across the width and length of the bottom of the hovercraft. In addition, the layout of the prototype, such as air sled using air thrust, snowmobile, etc. is very difficult due to the fact that the thrust is perpendicular to the plane there depends on the blow air directly into the water column (reference surface), which leads to the need to expend more power, and this reduces the efficiency of the vessel, and in these conditions, the impeller is not used to create directional jets straight from the comfort of his nozzle in the direction of the ledge in the direction directly to primocanale separated a shoulder in the end portion of the stern. As noted in the analogue prototype, the flow entering through the holes under the floor, moving between floor�zami, and a bottom, and the surface on which the slide rails, and a turning of the leaf does not leak air, as the pushing reaction force, which creates undesirable vortices, spent much energy on the establishment of such vortices to create an air cushion. Thus, the air that comes out under the vessel undergoes the effect of the sudden expansion creates flow turbulence and loss of energy not less than 30%; not provide effective control of the vessel (reversals). In addition, the air supplied from the injection device located vertically in the bow, sent numerous pterygoid inserts, creates a large resistance, adversely affecting the movement of the vessel. The ship can effectively only be moved on a flat surface. In the case of movement of the vessel through the water in terms of excitement, there is a considerable resistance. Moving on hard uneven surfaces when used as amphibians is very difficult.

With the participation of the authors of the present invention was tested the possibility of reducing the required thrust propulsion at low and high speeds of movement through the use of the impeller when using the remote control for the models under investigation for the above conditions of movement of the vessel, which� showed the prospects of its use. By performing at the end of the stern in terms of a longitudinal ridge with cut (at an angle), forming on each side of the flow-through primocanale, which allows, together with other proposed elements to create the movement of the vessel through the water, earth, grass, etc.

The problem to be solved by the invention is to create a design amphibious ship compressed pneumopathie that along with ensuring stability in the longitudinal and transverse directions, reduces the leakage of air from the bottom, reduces the resistance to motion that lets air into the atmosphere at the start of the movement of the vessel and at low speeds, an adjustable portion of the air to the sides of the hull of the vessel and directs the air separated by a ledge with a cut in narrow two primocanale, directly at the start and low speeds, taking the air coming out of the adjustable nozzle of the impeller, located obliquely to the axis of the vessel.

The technical result obtained by carrying out the present invention, is that the amphibious ship compressed pneumopathie, creating the air pressure under the hull, the hull is made of parts from different angles, the shutter is located on the front of the hull, rudder, aft of the hull directly in front of steering gear, bottom has a longitudinal ledge with a cut in �thoron the bow with the air intake channel of the injection device in the form of the impeller, the air from the nozzle which is angled under the vessel, the ledge is placed in the lower middle part of the stern on the center of the bottom and forms two pneumopathy from two sides between the ledge, the nozzle of the impeller is further secured a movable horizontal partition wall on the axis of rotation for the continuation of the air channel in the direction of the ledge with the slice, in addition, to the bottom, in the area of the ledge formed by primocanale, fixed rotary plate on the horizontal axis with the possibility of adjunction in the closed position to the bottom of a longitudinal ridge, while on the outside of the sides of the vessel fixed guide in the form of projections - a wing of two interconnected vertical plates, one of which is rigidly secured to a Board and put a constraint against tilting the second plate on the outer side, the second plate has an axis of rotation with the possibility of rotation and adjacent to the beveled section of the bottom of the vessel toward the bottom and spring-loaded relative to the first plate, in addition, the wheel rotation to the flap further comprises a second flap attached to the first hinge, and spring-loaded relative to the first flap, with the possibility of rotation in the vertical plane.

Wherein the impeller is located so that the angle of the bow created direct�oleanane the flow of air into the channel bottom, paired along with primocanale, separated by a longitudinal ridge with a slice.

Dignity is a significant starting speed and buoyancy of the turn, the turn angle can be dramatically reduced by a few degrees less. Reduced pressure on the water and in the soil of the bottom of the vessel. The engine power may be reduced to 30% than the known. Multichannel narrow primocanale separated (distinct) scarp with a slope at the center of the bottom of the vessel just aft of, allow airflow from the impeller to enter the closed primocanale at low speed for almost all of the air out of the passage in the stern into the atmosphere, i.e. at the start and at low speed of movement of the vessel, directing the entire flow from the nozzle, which comes first in the narrow primocanale, which significantly affects the speed characteristics of the vessel (this point is confirmed by model tests in several embodiments), when the ship is in motion reaches cruising speed, the air then begins to expand in width and length of the bottom. Consequently, the depth and width of such primocanale significantly affects the speed characteristics of the vessel (this point should be considered at detailed modeling studies). The maximum pressure can reach values of dynamic pressure q=ρV2/2, DG� q - the air flow rate; ρ is the air density; V is the speed of the vessel.

In the narrow primocanale formed air bubble flow, reduces draught of the vessel in the water when maneuvering at low (initial) velocities. The increased density of the air flow in primocanale allows the vessel to easily move both on water and on land with difficult terrain, and vegetation. Speed can reach aircraft (comparable to the plane).

The applicant has not identified technical solutions, identical to the claimed invention, which allows to make a conclusion about its compliance with the criterion of "novelty."

Fig. 1 is a side view of the proposed amphibious ship compressed pneumopathie (in section on a diametral plane); Fig. 2 shows a top view; Fig. 3 - bottom view on the bottom of the vessel aft; Fig. 4 is a front view of the impeller from the top; Fig. 5 shows the impeller from above; Fig. 6 - view of the aft rear (steering wheel is turned); Fig. 7 - view of the guiding device of the plates on Board side view; Fig. 8 - vehicle, one of the models of the study.

Amphibious ship compressed pneumopathie comprises a housing 1, which encloses the impeller 2 in the casing 3, where the movement occurs in an enclosed space. In addition, on the periphery of the impeller shaft has a cavity 4, through which freely PR�airflow goes. As a result, increases the air pressure at the outlet. The wheel 5 with the spiral blades rotate together and concentrically with the impeller 2 is disposed in the cavity 4. The engine is the impeller 2 nozzle 6 located at the bow of the hull 1. The nozzle 6 is provided with a flat sacrally in the form of the sash 7, padmottanasana and managed celerom buffers. Aft in the lower part is formed from a longitudinal ridge 8 from the side of the steering wheel, in addition, the ledge 8 has a bevel 9 under an angle α° in the direction of the bow is connected to the base with the bottom 10 of the intake channel of the injection device in the form of the impeller 2 with the nozzle 6. Thus, a flat bottom in the area of the stern of the vessel is divided by a ledge 8 with the bevel 9 and forms two narrow primocanale 11 and 12, which allow for the passage of air in compressed air in the form of through exits at the rear of the ship. In the area of the ledge 8 with primocanale 11 and 12 fixed rotary plate 13 on the horizontal axis of rotation with the possibility of adjunction in the closed position to the bottom with a longitudinal ridge cut. Adjusting the speed of the impeller, and the angles of the rotary plate 13, regulate the pressure inside the channel under the bottom to a value that provides a predetermined discharge of the vessel, from zero to maximum speeds. Still� way under the bottom redistributed air pressure. Thus even before the inclusion of the impeller 2 in the work primocanale 11 and 12 partially filled with atmospheric air, playing the role of part of the air-cushion vessel in General, what influences when starting the movement of the vessel, respectively, it is possible to reduce the capacity of the impeller 2 for low speeds of the vessel. The form and parameters of two primocanale 11 and 12 and a longitudinal ridge 8 with the bevel 9 selected design-experimental way. In addition, in the exit area of the compressed air flow from primocanale 11 and 12 from the end face of the ledge 8, hinged to the axis of rotation is fixed the driven wheel 14 with two flaps 15 and 16, one flap 15 is fixed rigidly to the axis of rotation of the steering wheel 14, opposite pneumocolon and deflecting the airflow to rotate the vessel at the same time the work enters the second flap 16 is immersed in the water, which via a pivot 17, respectively, is connected to the flap 15 of the steering wheel 14 with the installed spring 18 that forms the integrity of the steering wheel 14 to rotate the vessel. The spring loaded flap 16 is in contact with a lateral face of the fixed plate 15 with the wheel 14, it creates a compact design that allows you to simultaneously move the ship on a solid surface of the earth, the grass, due to the squeezing up of the movable flap 16 on uneven terrain. This is particularly favorable role on the water when turning the court�and small angles of turns, because it uses not only the compressed air escaping through one of pneumocolon, but also the hydrodynamics of the water flow. In addition, it was necessary also due to the reduction of friction on the terrain, in the first place; and when the vessel is on the water - to increase the possibility of turns (reversals) for the lesser radius of the wheel 14, second. The area of the flaps 15 and 16 of the steering wheel 14 is chosen to use when moving through the water vessel to create improve the maneuverability of the vessel and, in particular, ensure rotations (turns) in a small radius, using not only the air but also water. On the sides of the hull 1 of the vessel towards the bow placed guide plates 19 and 20 in the form of projections - a wing, one of the plates 19 are rigidly fixed to the Board and is a rotation limiter for a second plate 20, which is connected to the first through the horizontal axis 21 and the plate 20 is a leaf spring 22. In addition, the lower edges of the sides of the hull in places of fastening of guide plates on both sides of the Board have a bottom bevel for a possible landfall of each of the plates 20 to the bevel at the bottom of the Board when turning of the vessel, respectively, to the right or left. The form and parameters of the guide plates 19 and 20 are optimized and are selected so as to further improve the maneuverability of the vessel and, in particular, to provide lateral and longitudinal stability of the vessel, and optionally provide rotations (turns), which is associated with operation of steering wheel 14, as, for example, rotation of the vessel to the right, the guide plate 20 from the starboard side of the vessel, rotating on a horizontal axis, is pressed against the bevel side, and the second guide plate 20 with the left side (opposite) on the contrary is vertical and rests against an upper end fixed in the plate 19. Thus, the plate 20 with the left side of the Board is held by the dynamic water pressure on the plate on the right turn vertically. As a result of all ties elements of the ship begins to move smoothly to the starting position pneumopathie when the bottom is afloat or on a solid surface of the earth, and in the future is to achieve cruising speed.

To increase the efficiency of the impeller, especially at low speeds for maneuverability in shallow water or unequipped coast, where it is not enough to save the compressed air under the bottom, on each of the side walls are thin side of the wheel in the form of performance chassis with control cylinders (not shown for simplification). Wheels can be used as an additional device for the traction force of amphibious vessels. Amphibious ship �and compressed pneumopathie operates as follows. The air from the impeller 2, which is inclined in a horizontal position relative to the horizontal plane of the vessel through the nozzle 6 is supplied to the channel width and length of the bottom; the air, meeting the ledge 8 with the bevel 9, separated them and served in primocanale 11 and 12 and comes out behind the stern of the vessel, which provides a horizontal force of movement at the initial stage, then the ship quickly accelerates. Because of this, at the initial stage, the flow of compressed air from the impeller 2 reduces the flow of air across the width and length of the bottom, because aft all the air comes only in two narrow primocanale and doesn't get out of the bottom around the circuit, respectively, reduced power consumption, the Movement of the vessel, for example, on the water, begins to move slowly. Thus, the blurring of the boundaries of the jet of air is not in primocanale 11 and 12, bounded on one side by the ledge 8 and the protrusion of the bottom of the vessel. The wheel 14 is used to turn the vessel in a small radius. To improve the maneuverability of the vessel and, particularly, ensure turns in a small radius of the wheel 14 in its base has two flap 15 and 16 (sash). The stationary plate 15 with its lateral plane is rigidly connected to the steering wheel 14 with the possibility of turning to partially block the air outlet in one of primocanale 11 or 12, mind�most of the air outlet to the atmosphere, and the movable bottom plate 16 (wing) at the same time is in the water angle, as it is pivotally connected to a lateral plane of the upper plate 15 is rigidly connected with the wheel 14, and overlapping, the lower flap 16 is spring-loaded by a spring 18.

When turning the vessel to the right or to the left side there is some settling of the vessel to one side, this increases the hydrostatic pressure of water on the Cam plate 20 with the axis of rotation from the lowered side, and it is adjacent to the beveled portion of the vessel, and from the elevated side guide plate 20 is limited to a fixed guide plate 19 and is placed in a vertical position.

Form of construction of the guide plate 20 allows you to provide work together with the steering wheel 14 with the flaps 15 and 16 simultaneous unfolding moment towards the lowered side of the ship. In addition, during the movement of the vessel through the water is provided by transverse and longitudinal stability, as when the vessel is on the ground and grass, the movable plate can automatically smooth out the irregularities of the surface of the earth and to turn inwards, in the direction of the beveled sections of the boards from the bottom of the vessel. The efforts of the springs 18 can be adjusted.

The air coming out of the nozzle, passes into a chamber, and further underneath continues to flow straight through Gori�ostalnoi partitions, fixed to the axis of rotation, and, accordingly, turning the barrier may create pressure on the water and lifting the bow of the vessel in motion, which is especially important after the initial run-up, wave on the water. The rotary plate 13, overlapping the bottom of the ledge and pneumonae 11 and 12 in the opening movement, creates primocanale the effect of bubble flow, reducing the friction of the bottom of the vessel in the direction of the bearing surface (water) and reduces the settling vessel, which increases the efficiency of the propeller (impeller). Increasing up to cruising speed, the turning plate 13 may be adjusted accordingly air flow for uniform filling of larger volume to the width and length of the bottom of the vessel, which will partially disposed horizontally in the atmosphere at the rear of the ship at the stern side. The task consisted in finding technical solutions for work, only compressed pneumopathy that would be most optimally characterizing the minimum resistance to the movement of the ship, especially start traffic and at low speeds, then the speed limit (cruise speed). This causes the efficiency of amphibious vessel, i.e., greater impact of summed power to him.

Naturally, the relationship of all the elements under the bottom of the vessel, the steering device, the side guides, as well as the bottom, limited lateral keels, allows you to use all the airflow from the impeller when primocanale placed in the rear of the hull directly and separated by a ledge with a slice in front of the steering device.

Note that the high quality of ship amphibious and circuit formation pressures in primocanale provided with a relatively full use of air at low speed of movement of the vessel due to the increased flow rate of air flowing directly through primocanale in the forward direction, as in bow and stern cupola had no mechanical barriers, in addition to ledge 8 with the bevel 9, separating the air in the center on the two side flow only in the end area of the stern.

From the pressure affects the performance of pneumocolon (surround air). The nozzle of the impeller is almost rectilinearly in the direction of pneumocolon, airflow is aligned under the bottom, and only further aft is split into two streams by means of a ledge with a smooth cut in the middle axis of the vessel, thereby increasing efficiency and reducing the noise of the supercharger. During operation of the supercharger in the form of the impeller at its input is formed a vacuum: Pv. BX.=ρV2I/2, and the output pressure is created, so-called full-pressure supercharger for Pv. Thus, the full pressure of nine�Atelier will be Pv.full.=Pv.VC+Pv.

It is known that under the vessel to the usual means of transportation on water occurs, the depression, the depth of which depends on the pressure of air, whereas in the proposed technical solution, the first flow of compressed air flow in primocanale 11, 12 separated by a ledge 8 with the bevel 9 at the start of the movement, and at low speed, and only at cruising speeds, the air flow spreads across the bottom of the vessel, where it has other powers rise. Thus, a longitudinal air pull primocanale to the air outlet to the atmosphere, and at this point, the entire bottom is in contact with the water surface.

The air resistance is calculated by the formula

where ρ is the air density; V is the speed of the ship; S is the cross sectional area of primocanale; CX is the drag coefficient depending on the shape of the vessel.

Pulse resistance depends on the mass of air supplied by the supercharger in the form of impeller in primocanale, and speed of the vessel, i.e. Hmin=ρQV, where ρ is the air density; Q is the volumetric flow rate of air in primocanale; V - speed of movement of the vessel.

Thus, the propeller creates a horizontal thrust, when the load in primocanale remains part of the void, which is filled with air and provides exactly� maneuverability at low speeds. When the management of the vessel with compressed pneumopathie the complex of these forces and moments due to the work of the steering gear of a ship, and joint work guides mounted on the sides helps to improve the maneuverability of the vessel and, particularly, provision of rotations (turns) with small radius, thus, the ship acquires additional unwrapping moment towards the lowered side, ensured the safety of maneuvering mode on pneumopathie. When reaching the speed of movement of the vessel in which the aerodynamic lift force provides the required driving mode, starts the deflection means such as a horizontal plate in the form of sash 7 to the actuator pivot and swivel plate 13 adjacent to the bottom of the ledge 8 with primocanale 11 and 12, provide efficiency at cruising speeds. Inhibition of such a vessel is carried out by increasing the resistance force when the air supply in both primocanale and operation of the impeller, to complete shutoff.

Experimental tests of the model the proposed design has proven its effectiveness and confirmed its performance.

Model of the proposed technical solution in motion on water, on land, and the grass was shot on video (recorded on the disc) for the subsequent advertising and experienced manufacturing�of olenia in production. Complex tests of the model conducted by the authors on the pond with vegetation and on the ground, showed that the jet of compressed air inside pneumocolon, and other elements of the vessel, creating a steady state, as the movement on the straight and on the turns (the turns).

The schematic diagram of the operation of the inventive vessel when designing an actual vehicle (with certain economic purpose and parameters) can details be practiced on small-scale, radio-controlled and self-propelled models, probably, it is a promising application of process control of run-up and braking with use of the computer.

The current level of technology allows description presented in amphibious vessel in a dedicated facility using known numerical and experimental methods and techniques. Thus, the available set of features and the degree of disclosure of the invention sufficient for its realization in the design and manufacture of amphibious ship compressed pneumopathie.

1. Amphibious ship compressed pneumopathie, creating the air pressure under the hull, the hull is made of parts from different angles, the shutter is located on the front of the hull, rudder, characterized in that the feed�howl the bottom of the hull directly in front of steering gear bottom has a longitudinal c ledge with a cut in the side of the bow, with the air intake channel of the injection device in the form of the impeller, the air from the nozzle which is angled at the bottom of the vessel, the ledge is placed in the lower middle part of the stern on the center of the bottom and forms two primocanale from two sides between the ledge, the nozzle of the impeller is further secured a movable horizontal partition wall on the axis of rotation for the continuation of the air channel in the direction of the ledge with the slice, in addition, to the bottom in the area of the ledge with primocanale fixed rotary plate on the horizontal axis of rotation with the possibility of adjunction in the closed position to the bottom of the ledge, while on the outside of the sides of the vessel fixed guide in the form of projections - a wing of two interconnected vertical plates, one of which is rigidly secured to a Board and put a constraint against overturning the second plate on the outer side, the second plate has an axis of rotation with the possibility of rotation and adjacent to the beveled section of the bottom of the vessel toward the bottom and spring-loaded relative to the first plate, in addition, the wheel rotation to the flap further comprises a second flap attached to the first hinge and spring-loaded relative to the first flap with the possibility of rotation in the vertical plane.

2. Amphibious vessel according to claim 1, wherein �the impeller is thus to the angle of the bow created straightforward the flow of air in channel bottoms, paired along with primocanale, separated by a longitudinal ridge with a slice.



 

Same patents:

Air cushion vehicle // 2551588

FIELD: transport.

SUBSTANCE: proposed vessel comprises hull with flexible air cushion railing. Said hull comprises lateral skegs, front and rear flexible elements and stiff boards. Besides, it includes the engine, propulsion and discharge units with the drive composed of a push-type axial propeller with blower in ring adapter and control system. Note here that the frame is rigidly secured behind said propeller while inflatable board is secured at the hull stiff sides all along the vessel perimeter. Said ring adapter is additionally provided with a stiff frame aligned with said ring adapter from outer side. Said extra frame is equipped with stiff supports and water turbuliser turbine running on the shaft and fitted at said supports. Said bladed screw turbine is fitted on the shaft with deflector and can be displaced over preset intervals relative to air density adjustment screw. Turbine profile is inscribed by at least invariable small radius with respect to axial air screw with blower.

EFFECT: increased propulsion, better control.

5 cl, 3 dwg

FIELD: transport.

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.

4 dwg

Air cushion vehicle // 2547945

FIELD: transport.

SUBSTANCE: air cushion vehicle comprises hull, propulsion and discharge units, air cushion guard with fore and aft moving elements, side skegs and mid skeg to divide said area into LH and RH separate chambers. Discharge unit incorporates steering device to control air forcing into said chambers. Side and mid skegs are composed of two cases each. Note here that retractable rotary propulsors are arranged in every chamber between two cases.

EFFECT: enhanced performances.

4 dwg

Hovercraft // 2545566

FIELD: transport.

SUBSTANCE: hovercraft comprises displacement hull with V-shaped bottom, central ski with transverse steps and lengthwise steps. The latter are arranged at vessel fore. Note here that bottom incorporates extra cleats extending from edges to mid point. Lengthwise steps are hollow and through design.

EFFECT: higher speed and mobility.

2 cl, 3 dwg

Streamlined ship // 2538484

FIELD: transport.

SUBSTANCE: proposed ship comprises hull with lengthwise lateral compartments accommodating vertical lift propulsors. Primary engine is arranged at ship hull fore-part and engaged with said vertical lift propulsors. Sustainer propulsor is arranged at hull stern part and engaged with horizontal motion propulsors. Ship incorporates navigation control system and course-keeping ability control system. Vertical lift propulsors feature identical design and comprise round case wherein rotor runs in bearings composed of the solid of revolution consisting of three integral parts separated by thin discs.

EFFECT: enhanced performances.

29 dwg

FIELD: agriculture.

SUBSTANCE: invention relates to ice technology, in particular, to performing icebreaking works with air-cushion ships. During the low tide the air-cushion ship moves with the resonance speed along the shoreline at a distance from the edge of the cadder and excites the resonant flexural-gravity waves in the ice, at that the transverse periodic motion is transmitted to the ship, with an amplitude not exceeding the half of the wavelength of the static deflection of ice, and the frequency equal to the frequency of resonant flexural-gravity waves.

EFFECT: increase of the efficiency of ice cover destruction.

2 dwg

FIELD: transport.

SUBSTANCE: invention relates to universal transport facilities that can move in various media. Amphibious planning vehicle comprises hull with cabin, engine compartment, screw propeller with protective ring and inflatable floats with blowers. Contact surface of the floats is equipped with protective shell arranged to flex over their length. Said hull is composed of a wing-type deck with small elongation that features sweepforward leading edge. Wing-type deck tail has flaps deflecting up and down and furnished with extending tail skids. With flaps moving down, said tail skids brake the vehicle on surface of motion. Wind-type deck inner space is filled with foam plastic and fuel tanks.

EFFECT: higher speed and safety in planning, braking on ice and snow.

3 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to air-cushion craft destructing the ice cover by resonance waves. Air-cushion craft is displaced in selected direction at preset speed and, at a time, in sinusoidal path. Note here that in displacement in sinusoidal path, the craft is tilted to centers of curvature of said path.

EFFECT: higher efficiency of ice breaking.

3 dwg

FIELD: transport.

SUBSTANCE: invention relates to ship building, particularly, to hovercrafts. Proposed joint comprises stiff structure composed of hovercraft hull stiff structural element edge strip and elastic shell attached thereto by fasteners to make hovercraft flexible guard. Said fasteners represent "П"-like clevises made of strong resilient material with their foot ends bent inside to make elastic spring-loaded hooks to lock the clevis. Said hovercraft hull stiff structural element edge strip is set to position approximating to normal line to the edge of as-stretched shell and has paired holes for clevis foot with hooks arranged along the joint length. Elastic shell panel edge is tucked under and clamped to make a pocket with perforated edge, perforation being aligned with holes in structural element edge strip through which clevises are run. Ends of clevises run through appropriate mate holes and ate fitted against the stop to lock engagement by latching ends of spring-loaded hooks.

EFFECT: higher strength and reliability of joint.

2 cl, 2 dwg

Streamlined ship // 2470808

FIELD: transport.

SUBSTANCE: invention relates to ship building. Proposed ship comprises hull with lengthwise lateral compartments accommodating vertical lift propulsors. Primary engine is arranged at ship hull fore-part and engaged with said vertical lift propulsors. Sustainer propulsor is arranged at hull stern part and engaged with horizontal motion propulsors. Ship incorporates navigation control system and course-keeping ability control system Vertical lift propulsors feature identical design, each comprises rectangular housing accommodating two identical lifting mechanisms arranged one above the other. Every said mechanism has rectangular box with open part directed upward. Several pairs of cylindrical drums are fitted on bearings in top section horizontally and in parallel. Gear is fitted on shaft of every drum while idle gear are fitted between gears to engage with two gears of two adjacent drums. Distance between drums makes 0.3-0.5 mm. Taper gears and drum vertical shafts on bottom lifting element engage with drums of top lifting element. Drums run in one direction. Porous elastic wear proof insert is fitted inside the box to get in contact with bottom surfaces of drums and box bottom.

EFFECT: higher operating performances.

25 dwg

Snowmobile // 2478502

FIELD: transport.

SUBSTANCE: invention relates to air-cushion vehicles. Proposed vehicle comprises propellers to generate air pressure under flat bottom between floats that make a skirt retaining air to keep vehicle afloat. Bottom is composed of parts arranged at different angles to allow accommodating turning rings with wing-like inserts under the bottom. Note here that forward jet thrust is generated by air flowing over snowmobile to create dynamic pressure at bottom profile section with wing-in-ground effect and jet pressure at swinging flaps at snowmobile front.

EFFECT: expanded operating performances.

1 dwg

Air-cushion vehicle // 2347694

FIELD: transport, ship building.

SUBSTANCE: air-cushion vehicle incorporates a shell with skegs and is provided with outboard motors, supercharger with air ducts to feed higher-pressure air into the cushion. The proposed air-cushion vehicle features the M-shape cross-section of plating constricting the air-cushion space. The plating of the skeg inner sides, adjoining parts of bottom and pitching section of the bottom are smoothly mated. The clearance in diametrical plane makes at least 1/20 of the width between the lower edges of skegs. The aforesaid air ducts are recommended to be arranged along and outside the vehicles sides. The proposed invention allows reducing the air-cushion vehicle draught to mount standard outboard motors behind the propulsive unit transom.

EFFECT: improved performances, better comfort, enlarged shell payload volume due to arranging air ducts outside vehicle sides.

2 cl, 1 dwg

Air cushion vehicle // 2280574

FIELD: transport engineering; cross-country vehicles; hover craft.

SUBSTANCE: platform of vehicle is made in form of receiver of air masses delivered by machine plant with fan. Profiled slot is made over perimeter of receiver, over entire length of slot tip of aerofoil wing is arranged forming around receiver a wing with controlled flaps closed in plan to which peripheral flexible guard is attached. Upper and lower clearances are formed between edges of profiled slot of receiver and fitted in tip of wing. Said clearances are located over entire perimeter of slot. Vehicle is made with wing and flap guard from on-coming air flow when vehicle is running, and guard proper is secured at a distance from wing flaps over entire perimeter of vehicle. It is efficient to make wing with flap closed in plan with possibility of vertical displacement in width of profiled slot of receiver for fixing it in any point of displacement range with overlapping of upper or lower clearances in extreme positions.

EFFECT: increased lifting height of vehicle at preservation of specific power owing to aerodynamic relief of air cushion vehicle hull.

2 cl, 1 dwg

Hovercraft // 2174925
The invention relates to shipbuilding and can be used in the design of the hovercraft

Ship // 2108257
The invention relates to shipbuilding and for the design of transport catamarans

Car air cushion // 2104889
The invention relates to vehicles, air cushion and concerns the design of vehicles, air cushion

The invention relates to vehicles, air cushion

Boat // 2076051
The invention relates to shipbuilding and can be used when designing boats mainly skeg type hovercraft and boats on air lubrication

Air cushion vehicle // 2280574

FIELD: transport engineering; cross-country vehicles; hover craft.

SUBSTANCE: platform of vehicle is made in form of receiver of air masses delivered by machine plant with fan. Profiled slot is made over perimeter of receiver, over entire length of slot tip of aerofoil wing is arranged forming around receiver a wing with controlled flaps closed in plan to which peripheral flexible guard is attached. Upper and lower clearances are formed between edges of profiled slot of receiver and fitted in tip of wing. Said clearances are located over entire perimeter of slot. Vehicle is made with wing and flap guard from on-coming air flow when vehicle is running, and guard proper is secured at a distance from wing flaps over entire perimeter of vehicle. It is efficient to make wing with flap closed in plan with possibility of vertical displacement in width of profiled slot of receiver for fixing it in any point of displacement range with overlapping of upper or lower clearances in extreme positions.

EFFECT: increased lifting height of vehicle at preservation of specific power owing to aerodynamic relief of air cushion vehicle hull.

2 cl, 1 dwg

Up!