Method of development of extra pressure of compressed air for air cushion vehicle and device to this end

FIELD: transport.

SUBSTANCE: to provide extra compressed air pressure for air cushion vehicle air with impeller running as compressor high-pressure gas-dynamic jet is created to escape from impeller nozzle. Said jet is forced into bottom supply channel composed in plan of confuser with neck-like nozzle and directed between vertical sidewalls. Confuser-like channel with nozzle extra high-pressure gas-dynamic jet is generated by moving vertical flaps secured to confuser vertical walls.

EFFECT: higher stability, reduced leaks from under the bottom, efficient operation thanks to maximum application of high-pressure compressed air at supply channel outlet.

4 cl, 4 dwg

 

The technical field TO WHICH the INVENTION RELATES

The invention relates to the field of vehicles using dynamic air cushion with high-performance property of the compressor on the use of the impeller, the jet of which is directed to pneumocolon in the form of compressed air under the bottom to create lift and traction force, and can be used to create vehicles (TSIT) to move through water, snow and earth, especially of small vessels on an air cushion.

The LEVEL of TECHNOLOGY

At the present time, various methods and means of control by the courts on an air cushion.

A device for creating a lifting force by means of the continuously rotating impeller, containing the impeller, a casing with an open bottom positioned near the outer periphery of the impeller on the side of creating protivopozharnoi power thus to close toward the creation protivopozharnoi forces, leaving open toward the creation of a lifting force, a cavity is made in the periphery of the shaft of the impeller, and a stationary semi-cylindrical partition, disposed in the cavity of the impeller near the inner periphery of the impeller on the side of creating a lifting force (Patent RF №2252898, CL B64C 11/00, 11/48, 23/00 from 10.08.2004).

Also described SP�sob the establishment of an air discharge and thrust for skakovogo transport vehicle on a dynamic air cushion, containing bearing wing - the wing centre section and start marching installation placed in front of the specified wing on the pylon podobnymi engines, a nozzle which is formed with a set at an angle to the horizontal deflection nozzles, the upper surface of the wing is made with a transverse ledge which is shifted toward the nose of the plane Middleboro section, with a wing at the bottom across its width made with guide channels, each of which is located against one of the nozzles podobnego engine, and the angle of inclination of each of the guiding channels greater than the angle of inclination of the respective nozzles in relation to the horizon (Patent RF №2057664, B60V 1/08, B60V 3/08, dated 10.04.1996).

Known air sled with propellers, creating the air pressure under the floor and moving vehicles, with a skirt, holding the air under the flat bottom and floats that support the transport on the water, the hull 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 RF №2478502, CL B60V 1/04, WV 15/00 dated 20.06.2012).

Known aircraft - winged, containing the fuselage, wing, horizontal�al settings and vertical tail and airborne jet propulsion system. Under the wing of the airplane placed the device creating an air discharge and thrust, made in the form of a flow chamber formed by the wing and side rails, and side guards cameras are installed on the consoles of the wing (see application Germany No. 3319127, B60V 1/08, 1983), as well as aircraft - ekranoplan (see application Germany No. 4010077, VS 35/00, 1991), furthermore, known to the court (U.S. No. 5370197, B60V 1/043, B60V 1/16, 1994; NO. 2004065772, VS 21/04, VS 23/08, 2004).

All of these known tools are quite complex, especially when used on small boats on an air cushion. In addition, the court described have a low amphibious and seaworthiness; the capacity of the propulsion units are implemented incompletely. That is, the known technical solutions with the blowing of air under the bottom of the wing or do not provide complete high pressure and compression, while using only compressed air from the power plant, in particular from the impeller operating in the compressor mode, which impairs its propulsion system, but also impossible at the end of the channel to obtain the additional pressure of compressed air for the operation of pneuomonia in the mode of blowing high pressure air to the traction forces that provide translational motion of the vessel.

Known ekranoplan, the method of creating air discharge and thrust (Parenth No. 2097229, CL B60V 1/08, dated 27.11.1997). Known ekranoplan contains the fuselage, the wing. The plumage of the device creating an air discharge and thrust, including symmetrical relative to the longitudinal axis of the airplane running, open bow tunnel formed under the wing or the wing centre section by means of a display equipped with washers and plate on the rear end. Way to create an air cushion and thrust in the famous wig is implemented as follows. Driven flap is produced in the extreme deflected position and include the power plant, creating in flow tunnel airflow, which is realized by changing the deflection angle of the flap, and using a special corrector profile of the tunnel, except air cushion, providing unloading wig, traction force is created.

The design and method of creating air discharge and traction is not effective enough at starting speed, at low speed and at high speed as the drive units, in particular the impeller, not fully implemented, so that upon expansion of the air in the beginning on the periphery under the vessel, the pressure drops, before reaching the stern, respectively, are not fully used compressed air from the impeller, especially when used on small boats, in addition, the location of�estno elements under the vessel affects its structure, has degraded efficiency, low efficiency and low dynamics traction in various conditions of use.

Also known a method of creating airbag for a vehicle, comprising an inkjet fence region of the airbag along the periphery of the vehicle and a supply path of gas dynamic curtain that holds the airbag. It serves the additional air under pressure exceeding a predetermined pressure in the cushion at least on the magnitude of the pressure loss in the inlet tract (Patent RU 2092343, CL B60V 1/02, 1997).

However, this solution is difficult in practical implementation, it does not allow to create a traction force with high efficiency and increased (improved) handling, and it is impossible to obtain the specified compressed air high pressure for improved performance of pneumocolon in the TC mode, occurring friction losses, i.e. limited functionality.

The closest technical solution, selected as a prototype of the claimed is a method of creating airbag for a vehicle, comprising an inkjet fence region of the airbag along the periphery of the vehicle and a supply path of gas dynamic curtain that holds the airbag. It serves additional�individual air under pressure, exceeding a predetermined pressure in the cushion at least on the magnitude of the pressure loss in the inlet tract (Patent RU 2092343, B60V 1/02, 1997).

However, this solution is difficult in practical implementation, it does not allow to create the traction force of the entire compressed air of high pressure has low efficiency and insufficient control on various underlying surfaces. In addition, the device can enter into a conclusion that it is impossible to obtain additional compressed air of high pressure during operation of the impeller and the flow of the jet for primocanale and use for their vehicle in full of compressed air.

Known a device for performing this method, comprising a housing, a fan that creates an air cushion, traction screw and the authority in the form of one of the steering column. However, it has a complicated structure and low controllability with bumps on the ground and the excitement on the water.

The known device, selected as a prototype, contains the high-pressure supercharger, inlet tract, consisting of a manifold and nozzle device located on the periphery of the vehicle body and the low pressure supercharger and mine, designed to feed air directly to the airbag. Thus, this method requires complicated� design, creates difficulties and has degraded efficiency, low efficiency and insufficient traction force dynamics in various conditions.

Summary of the INVENTION

The objective of the claimed invention is to eliminate the above disadvantages: sustainability, reduction of air leaks out of the bottom, the decrease of the resistance movement and performance amphibious vessel for maximum use of compressed air high pressure at the outlet of the feeding channel. This problem can be solved by creating a method according to the first independent claim and designs according to the second independent claim, and ensure the relative simplicity of its practical implementation and traction device that implements this method having high efficiency and better handling.

The technical result - improving the producing compressed air is additionally high pressure along the length of the diffuser and at the entrance to primocanale using its regulation through the outlet of the diffuser nozzle in the form of a mouth, and proceeds directly to high pressure (head) for two primocanale.

Said technical result is achieved in that the inventive method is further compressed in�of Suha for a vehicle on an air cushion and a device for its implementation creating airbag for a vehicle and build air pressure during operation of the impeller in the compressor mode, create a gas-dynamic jet of high pressure exiting the nozzle impeller, additionally it is directed under pressure into the supply channel formed in the bottom of the vessel, which is performed in the plan in the form of the diffuser nozzle in the form of a mouth, and direct gas-dynamic jet of high pressure between the thin vertical side walls, then form a gas-dynamic jet streams advanced high pressure for producing compressed air, driving them by force and vectors of these forces, when you do this exercise consistently managing their flow in the persistence of high pressure and sent to primocanale, the air velocity used to move the vessel increases.

Said technical result is solved in that the device for more pressure compressed air, with additional pressure coming from the inlet channel containing the high-pressure supercharger, and a nozzle in the conduit in the form of the diffuser nozzle, the role of the formation of additional gas-dynamic jet of high pressure at the beginning of the formation of pneumocolon, in the area of the aft part with a flow divider, made �on the form of drops, perform movable vertical fold, attached to the vertical walls of the diffuser nozzle, and closing of the valves is in a horizontal plane by the force of hydraulic cylinders in automatic mode.

On embodiment of the movable vertical wall can be controlled in the vertical plane by the force of the springs in automatic mode (not shown).

The flow divider in the form of droplets is mounted concentrically between primocanale attached to the bottom aft of the diffuser opposite the nozzle and addressed to him coaxially formed with a sharp end and a closed peripheral part of the bulge behind the stern steering mechanism including a steering wheel equipped with two pivotally connected shutters with a spring.

Comparative analysis with the prototype shows that the creation of directed compressed air advanced high pressure supplied to the nozzles with the nozzle in the form of the neck, improves the performance of the impeller further by increasing the air pressure along the length of primocanale, and increase the speed of the incoming air stream, respectively, depends on the pressure change in the vertical position of the movable flaps forming a nozzle in the form of the neck and opening the flow of compressed air at the bottom of the craft at high speeds, SJ�th air served with great speed from the impeller, keeping it for safe vessel movement forward. Vertical flow divider teardrop shape that provides less resistance to the flow of separated high pressure compressed air, and a rotary vertical fold with cylinders, enabling the movement to the starting speed and low speed traffic, also at a high speed with a large inflow of additional high-pressure compressed air in two primocanale, increase the pressure and flow of compressed air received from the impeller, the air begins to flow partially across the width (along the periphery of the aft) under the bottom of the vessel through the required traction for maneuvering and movement of the valves, which is provided by the hydraulic cylinders, i.e. the opening of the air pressure in the nozzles with the nozzle in the direction of the sides of the vessel (skegs), and the total area of open holes vents should be equal to the area of the passage opening cross-section (nozzle) nozzles with nozzle. On embodiment may provide for the replacement of hydraulic cylinders on a compression spring in the automatic mode of the air pressure on the plane of the flaps (not shown for simplicity). As soon as the pressure of the air flow exceeds the required increasing the speed and pressure in primocanale, mobile �ertikalnye sash will open at a specified angle hydraulic cylinders in automatic mode. The liquid in the cavity of the cylinders served by using spools, for example, four-way (two way flow) spool valves. In primocanale created a jet speed is also required to use when turning one of the blinds in the rear part of the back that is connected to the second shutter pivotally secured together with a spring, by turning the steering wheel right or left.

The hydraulic actuator is small in size, large traction, just the reversal of the stroke, and easily fits in the body of the vessel. The spools may be arranged with electromagnetic control and are mainly used for remote control. The cost of power at the same time small enough. Can be developed electrohydrostatic with line management type ZSU with a wide range of nominal flow rates.

The actuator is calculated in relation to a particular vessel, including the type of shutters. The necessary condition for the application of the valves with actuator - availability of compressed air passing through the nozzle in the form of the neck of the diffuser before primocanale at the stern side of the vessel divided by the flow divider, made teardrop shape. Virtually you can use the control and pneumatic.

To calculate the necessary parameters describing the ship, its technological process and sash: the ability maneiro�ing, the weight of the valves and the magnitude of their movements, sudden contraction or expansion nozzle at the end of the diffuser, which due to sudden contraction channel side vents the air velocity increases, the two primocanale behind the stern of the flow divider. This design has an improved operational reliability.

To move on a solid surface amphibious ship may be equipped with disc wheels with sharpened edges, which provide less resistance the bearing surface movement amphibious vessel on the water, and with the possibility of control when folding under the bottom (not shown for simplicity).

Analysis of the known devices with air flow under the bottom with the proposed elements allows to make a conclusion about the absence of features similar to features of the claimed method and device that meets the criterion of "Inventive step".

BRIEF description of the DRAWINGS

Fig. 1 shows an amphibious ship with a device of compressed air and thrust, in which the impeller is used and the control system of the present invention; Fig. 2 shows a top view; Fig. 3 - bottom view on the bottom of the vessel aft; Fig. 4 - view of the aft rear (rudder).

DETAILED description of the INVENTION

Method �of Holocene additional pressure compressed air to a vehicle air cushion is implemented using the device, compressed air and thrust (Fig. 1).

Amphibious vessel includes a device of compressed air and thrust, in the form of the impeller in the casing 1, located at the bow, where the movement of air occurs in a confined space, the bracket 2 and the transition piece 3. As a result of the fact that the curved blades of the rotor and the stator is fixed in different directions relative to each other, the nozzle 4 channel under the pressure of the entire air stream (can be compared with the work of the compressor) is longitudinally mounted directly to the inlet channel of the bottom of the vessel, made in the form of the diffuser 5.

From the side of the impeller 1, the nozzle 4 is connected to the nozzles 5, blending smoothly into the nozzle 6 in the form of a cap mounted to the side of the divider 7 of the stream, placed in the stern of the vessel and is made in a teardrop shape and with a longitudinal ledge mounted concentrically between primocanale 8 and 9 attached to the bottom aft of the diffuser opposite the nozzle, and addressed to him coaxially. The divider 7 teardrop shape made gabled side faces 10, attached to the bottom of the vessel opposite the diffuser 5, and addressed to him with the pointy end. The side walls 11 of the diffuser 5, performing to a certain extent the function of the keel, the free ends are connected with the power device, made in the form of hydraulic cylinders 12 controls with vertical shutters� 13 with the walls 11 of the diffuser 5. High pressure compressed air stream is used at the beginning, and along the length of primocanale 8 and 9, which is controlled by the angles of rotation of the flaps 13 of the cylinders 12 (option can be installed in the spring) and the flap 14 on the horizontal axis 15 of rotation with the possibility of adjunction to the bottom of the divider 7 is flow formed a teardrop shape with side faces 10. Adjusting the speed of the impeller 1, and the rotation angles of the flaps 13 automatically by hydraulic cylinders 12, respectively, and the flap 14, regulate compressed air pressure when driving and pull along the length of primocanale 8 and 9, respectively, a predetermined high-pressure air to the nozzles 5, with vertical flaps 13, provides a given strain of pressure on the ship from zero to maximum speeds. Thus, the length in primocanale 8 and 9 is maintained flow-through (pass-through) high discharge pressure and movement of compressed air. It should be noted that even before the movement of the vessel primocanale 8 and 9 filled with atmospheric air, generating lift, ie, a passive air cushion, which affects the starting speed. The aft side of the end face of the ledge of the divider 7 of the flow is pivotally mounted to the vertical axis of the steering wheel 16, which is rigidly secured to the shutter 17 and to which via a pivot 18 secured complete�of obayatelnaya, charming and the cover 19 with the spring 20 can be rotated around the axis of the steering wheel 16 relative to the shutter 17 in the vertical plane. The shutter 17 is opposite primocanale 8 and 9, thus partially its lower end is placed in water, and they are connected together into one device with the possibility of turning the steering wheel about 16 outside end of the divider 7 of the flow aft of the rear. This relationship of the shutters 17 and 19 provide as full closure on the turn of one primocanale 8 or 9, and simultaneously increases the controllability of traction force when moving through the water, thus increasing the possibility of turns (reversals) over a smaller radius. The size of the shutters 17 and 19 of the steering wheel 16 is selected in such a way as to use when driving through water, traction power, better maneuverability and dynamic stability, in particular the provision of rotations (turns) in a small radius by using not only the air but also water. The side walls of the vessel on both sides closer to the bow can be equipped with wheels, discs are made with sharp edges to provide less resistance to the bearing surface amphibious vessel (not shown for simplicity in the drawing). Received compressed stream with additional high pressure through the nozzles 5 nozzle 6, is divided by the sharp end of the flow divider 9 teardrop shape into two streams and storing high pressure, is directed into primocanale 8 and 9, closed with a bottom flap 14 and goes with a big �the rate back in the stern of the vessel, what is important for maintenance of stability pressure primocanale. The preservation of high-pressure compressed air pressure at the beginning of primocanale gives the possibility of reducing the required power of the impeller that is used to create a forming gas-dynamic jet of high pressure air and store it, the nozzle which is located under the bottom of the hull at the bow, i.e., the power consumption decreases. During the movement of the vessel to ensure turns changes the direction of the force of traction turning device, which is made using the steering wheel 16 with shutters 17 and 19, and the shutter 19 on the axis of the steering wheel 16 overlaps a portion of the plane of the shutter 17 to the spring 20.

Application in fore and aft active air aerodynamic spoilers 21 and 22 allows you to create a levelling force of the pressure of the air flow on the ship that, in General, provides greater stability and control, particularly at high speeds and choppy water. The inlet diffuser 5 nozzle 6 in the form of a mouth, with rotary elements in the form of flaps 13 and the hydraulic cylinder 12, a high (high) pressure of the compressed air stream in the direction of primocanale 8 and 9.

Way more pressure compressed air to a vehicle air cushion and the device d�I its implementation works as follows, using the inventive method of creating additional high-pressure compressed air and thrust.

In the beginning of the movement (at the start) and at low speed when the impeller 1 raises the pressure of compressed air and directional air flow toward the nozzle 6 directed then the entire flow in the nozzles with the nozzle 6, to increase capacity with additional high pressure compressed air in the direction of divider 9, drop-shaped and next, respectively, in primocanale 8 and 9. The air stream, flowing teardrop shape of the divider creates increased traction force and goes back to the aft side of fastening of the steering wheel 16. Thus increasing the speed of the impeller 1, adjust the pressure inside the nozzles 5 nozzle 6, the ends of the vertical flaps 13 which are under increasing time, as all the air is unable to blow (passes) through primocanale 8 and 9, as a result, vertical fold 13 (diffuser nozzle), hinged to the walls 11 have the possibility of deviation on the angle φ=0-90°. Resulting in overcoming the efforts of the cylinders 12 (or springs under option), doors open 13, creating back pressure valves in relation to the dynamic pressure, compressed air of high pressure, wherein the excess air creates increased pressure in the nozzles 5 of the vessel, all in�such which may be disposed around the circuit in stern rear by opening the valves 13 - the ship most moving. The amount of compressed high pressure air flowing through primocanale 8 and 9, is regulated by a plate 14 fixed to a horizontal axis 15 of rotation, and also affect the gradual redistribution of pressure blowing in under the bottom thrust through the open hole 13 valves with the cylinders 12. By lowering the air pressure in the nozzles 5 under the influence of hydraulic cylinders 12 vertical flap 13 is moved to its original position, forming in the nozzles 5 extra nozzle 6, the flap 13 which reduce the openings under the vessel, thus maintaining the pressure of air through the nozzle 6 before primocanale 8 and 9 automatically. With the change of operation of the impeller 1 and the compressed air, the process is repeated. The adjustment of the air pressure in the nozzles 5 nozzle 6 is performed by changing the position of the hydraulic cylinders 12 and can be adjusted by means of additional control devices, such as spools (not shown). Thus, the compressed air to the nozzles 5 due to the difference of the diameters of the inlet and outlet cross-sections (nozzles) is driven in the direction of the divider 7 of the flow, drop-shaped, placed in the stern, pointed side faces 10 which is attached to the bottom of the vessel, and the total area of the holes, overlapping flaps 13, should�ü is equal to the flow area of the additional nozzles 6 nozzles 5, this prevents leakage of air from the diffuser 5 when it is received in primocanale 8 and 9, in particular when the starting speed and at low speed.

The air flow passing through the nozzle 6 of the diffuser 5 is smoothly compressed, the pressure and velocity in primocanale 8 and 9, respectively, increases, the control flow, in proportion to the ratio of the cross section of the diffuser 5 nozzle (excluding losses), i.e. the rate of release of air can reach the maximum. Usually the energy loss in the conduit nozzles 5 nozzle 6 does not exceed in total 10%. In the case of the hydraulic drive to shutters air pressure changes from Pmaxto Pmin, changing the pressure of air passing through the nozzle of the diffuser (the neck).

The most critical point in the design and calculation of hydraulic actuators to shutters is the choice of the parameters of the hydraulic cylinder (or spring for one embodiment), which is the basis of subsequent calculation of the overall management primocanale.

For example, in the hydraulic cylinder double-acting area of the piston and rod cavities respectively define S=πD2/4; S'=π(D2-d2)/4, where D, d are the diameters of the cylinder and the rod.

Draw the accepted scheme of the actuator to the flap with the use of existing forces. Asking various open, check the kinematics and determine actions�that are contributing to the load on the cylinder from the equation of moments relative to the axis of rotation of the sash. At the maximum pressure load on the rod finally calculate the required minimum pressure in the hydraulic system that provides maneuvering fold: Pmin=pk/S, where k is the coefficient for strengthening 1,1-1,15; S - area of the cylinder.

To move the sash main criterion is the stroke in the cylinder.

In the parameters adopted by the cylinder volume of the liquid V for moving the sash from one extreme position to another is determined by: V=Sln, where l is the stroke of the cylinder. Maneuvering flap occurs mainly from the work of the impeller, the feed of compressed air (compressor running), thus, the liquid volume V is adopted for the case of full opening of the sash.

During the movement of the vessel to ensure the turns, changes the direction of thrust, rotating device, which is made using the steering wheel 16 with shutters 17 and 19, and the shutter 19, the hinge 18 is secured to the shutter 17, covers its part of the plane and connected with the spring 20.

Along with the ability of the device fixed in a fore and aft on top of active aerodynamic spoilers 21 and 22 to stabilize and wrapping the deck of a vessel, created equalizing pressure force on the ship, providing its horizontal location in the movement of water on the course, and this has an effect on overall stability and �problemot, in particular, at high speeds and having the waves with a headwind. Overall the ship becomes economical.

As the acceleration of the vessel and increases aerodynamic stabilization in the horizontal position at high speeds, the pressure of airflow from the top deck to stabilize. All the energy of the compressed air from the impeller is converted into thrust by the equipment of the bottom of the vessel with additional nozzles 5 having the nozzle 6 with the controlled power device, made in the form of cylinders 12 (or springs) and regulators with side flaps 13 of the diffuser 5. Aft and is equipped with a divider 7, made in a teardrop shape with a pointed side faces 10, attached to the bottom of the vessel separated by primocanale 8 and 9, the divider 7. As a result, increased efficiency, especially for small vessels on an air cushion, by maximizing the use of compressed air high pressure (pneumopathy) sustainability in the longitudinal and transverse directions and with high maneuverability afloat.

The combination of features and the degree of disclosure of the invention sufficient for its practical implementation in the design and manufacture of amphibious ship compressed pneumopathie.

1. Way more pressure� compressed air to a vehicle air-cushion, creating an air cushion for the vehicle and the creation of air under pressure, characterized in that during operation of the impeller in the compressor mode, create a gas-dynamic jet of high pressure exiting the nozzle impeller, additionally it is directed under pressure into the supply channel formed in the bottom of the vessel, which is performed in the plan in the form of the diffuser nozzle in the form of a mouth, and direct gas-dynamic jet of high pressure between the thin vertical side walls, then form a gas-dynamic jet streams advanced high pressure for producing compressed air, driving them by force and vectors of these forces, this exercise coordinated with management in the real direction in primocanale.

2. A device for producing additional pressure of compressed air under the vessel containing the high-pressure supercharger and the nozzle, characterized in that in the conduit in the form of the diffuser to the nozzle of the role of the formation of additional gas-dynamic jet of high pressure at the beginning of the formation of pneumocolon, in the area aft of the flow divider, made in the form of drops, perform movable vertical fold, attached to the vertical walls of the diffuser nozzle, and closure of the flaps is carried out in a horizontal p�Ascoli force of hydraulic cylinders in automatic mode.

3. The device according to claim 2, characterized in that embodiment of the movable vertical wall can be controlled in the vertical plane by the force of the springs in automatic mode.

4. The device according to claim 2, characterized in that the flow divider in the form of droplets is mounted concentrically between primocanale attached to the bottom aft of the diffuser opposite the nozzle, and addressed to him coaxially formed with a sharp end and a closed peripheral part of the bulge behind the stern, the steering mechanism including a steering wheel equipped with two pivotally connected shutters with a spring.



 

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3 cl, 3 dwg

FIELD: transport.

SUBSTANCE: ship hull has free hull and underwater hull with curvilinear boards below design waterline converting to the fore. Underwater hull has bottom with lengthwise tunnel provided with upper horseshoe-shaped surface and vertical walls extending along the ship hull under design waterline and with generating lines parallel with the ship centre line. Underwater hull cross-section profile along design waterline features maximum width at aft area. Lengthwise tunnel fore and aft ends are provided with at least one railing to turn and to be secured relative to the axis extending the are of contact between said top arched surface and vertical walls and perpendicular to the ship centre line. Every said moving railing can be retracted and released and stay at working position whereat closed zone is formed in lengthwise tunnel. Ship free hull accommodates at least one blower of air into said lengthwise tunnel.

EFFECT: better propulsive properties and navigability.

3 cl, 5 dwg

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

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

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

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