Hydrojet device for conversion of mechanical energy of ship's oscillating motion to hydrojet energy

FIELD: power industry.

SUBSTANCE: hydrojet device includes a water passage with nozzles formed with vertical side walls and flat plates. The water passage is divided at least into two cascades. Each successive cascade has bigger height. Cascades are connected to each other by means of connection planks. Each cascade of the water passage has upper and lower outside channels, at least one upper inner nozzle, one lower inner nozzle and one central nozzle. An inlet water intake hole of the central nozzle is located vertically and perpendicular to the longitudinal axis of the water passage. Connection planks are inclined to the longitudinal axis of the water passage in a vertical plane. The water passage diverges along the longitudinal axis of the water passage in a horizontal plane. Flat plates are bent symmetrically and in a convex manner relative to the longitudinal axis of the water passage in a horizontal plane so that a blunt angle is formed. Water flow turbulisers formed with spiral-shaped vertical strips are installed on the outer side of the side walls of the water passage.

EFFECT: improving use efficiency of a hydrojet device at conversion of oscillating motion energy of a ship to hydrojet energy.

3 dwg

 

The invention relates to a device for preobrazovaniya wave energy, in particular for the conversion of energy fluctuations of the vessel in hydro jet energy, including during storm conditions with simultaneous decrease of pitching hydro jet device together with the device on which it is installed, for example a vessel.

A device for reducing the speed of drift of the vessel containing located in the forward Bulba symmetrically with respect to the median plane of the ship vertical input channels connected through swivel knees with the corresponding horizontal output channels to generate when the rolling of the ship keel traction force, which reduces the drift velocity of the vessel (see patent RU No. 2184047, 27.06.2002).

This device allows you to use the energy of the waves only in roll, pitch and which limits its capabilities.

Closest to the invention to the technical essence and the achieved result is hydro jet device for converting mechanical energy pitching of the ship in hydro jet energy containing conduit is made in the form of arranged symmetrically about its longitudinal axis system tapering along the flow nozzle with inlet water intake holes formed by vertical side walls and a flat plate with the concave relative to the tion to the longitudinal axis of the conduit inlet pipe, moreover, the conduit is divided into at least two cascade, each of which is formed symmetrically relative to its longitudinal axis, the nozzle system, the vertical side walls are made common to each of the cascade nozzles, with beveled along the flow front edges forming an obtuse angle, the apex of which is located on the longitudinal axis of the conduit, each subsequent stage is executed by increasing the height of the cascades are interconnected by means of connecting bars, each stage of the pipeline has upper and lower external channels, at least one inner top and one inside lower channels and one Central channel, and the input the intake opening of the Central channel is vertically perpendicular to the longitudinal axis of the conduit (see patent RU No. 2447316, CL F03B 13/14, 10.04.2012).

This device creates a hydro jet force.

However, this device does not fully uses energy waves when it was transformed into a hydro jet energy.

Task to be solved by the present invention is directed, is expanding Arsenal of technical tools that allow you to more fully convert wave energy in hydro jet energy.

The technical result achieved by the invention is to increase the efficiency with which it is used is when I convert wave energy in hydro jet energy.

This problem is solved and the technical result is achieved due to the fact that the hydro jet device for converting mechanical energy pitching of the ship in hydro jet energy contains a conduit, made in the form of arranged symmetrically about its longitudinal axis system tapering along the flow nozzle with inlet water intake holes formed by vertical side walls and flat plates with concave relative to the longitudinal axis of the conduit inlet pipe and the conduit is divided into at least two cascade, each of which is formed symmetrically relative to its longitudinal axis, the nozzle system, the vertical side walls are made common to each of the cascade nozzles, with beveled in the course of the flow front edges forming an obtuse angle, the apex of which is located on the longitudinal axis of the conduit, each subsequent stage is executed by increasing the height of the cascades are interconnected by means of connecting bars, each stage of the pipeline has upper and lower external channels, at least one inner top and one internal bottom nozzle and one Central nozzle and the inlet of the intake hole of the Central nozzle is vertically perpendicular to the longitudinal axis of the conduit, the connecting straps tilted the longitudinal axis of the conduit in a vertical plane at an angle from 7° to 13°, the conduit is made extending along the longitudinal axis of the conduit in a horizontal plane, a flat plate bent symmetrically and convex relative to the longitudinal axis of the conduit in a horizontal plane with the formation of an obtuse angle from 167° to 173°, the outer side of the side walls of the conduit installed educated spiral vertical stripes energizers water flow.

During tests it was found that the hydrodynamic device or devices mounted or mounted on the hull of a ship, working as additional hydro jet propulsion, disposing the vibration energy of the mass of the ship in the incident wave and giving the vessel an additional "stop" when moving forward stroke counter waves, including during storm conditions.

For this purpose the most suitable execution hydro jet device for converting mechanical energy pitching of the ship in hydro jet energy containing conduit is made in the form of arranged symmetrically about its longitudinal axis system tapering along the flow nozzle with inlet water intake holes formed by vertical side walls and flat plates with concave relative to the longitudinal axis of the conduit inlet pipe and the conduit is divided at least in two cascades, the distance between the m of which is formed symmetrically relative to its longitudinal axis, the nozzle system, vertical side walls are made common to each of the cascade nozzles, with beveled along the flow front edges forming an obtuse angle, the apex of which is located on the longitudinal axis of the conduit, each subsequent stage is executed by increasing the height of the cascades are interconnected by means of connecting bars, each stage of the pipeline has upper and lower external channels, at least one inner top and one inside the lower channel and the Central channel, and input the intake opening of the Central channel is vertically perpendicular to the longitudinal axis of the conduit, connecting plates inclined to the longitudinal axis of the conduit in a vertical plane at an angle from 7° to 13°, the conduit is made extending along the longitudinal axis of the conduit in a horizontal plane, a flat plate bent symmetrically and convex relative to the longitudinal axis of the conduit in a horizontal plane with the formation of an obtuse angle from 167° to 173°, the outer side of the side walls of the conduit installed educated spiral vertical stripes energizers water flow.

It was found that the inside and outside of the hydro jet device is formed of multiple vortices, trying to maintain the position of the axes of rotation of their mass. Campfire disturbing force, resocialise, and opposing these forces like hydrogenosome, hydro jet stabilizing device helps to stabilize the position of the ship on course and reduce pitching of the vessel, especially in heavy weather sailing.

Slowing the pace and breaking the rhythm of oscillation of the vessel in the "wave - ship", the stabilizer significantly reduces the number and amplitude of the maximum "UPS and downs" of the vessel, i.e. resonant vibrations.

The decrease in the amplitude of the pitching of the vessel (change trim with 6-7 degrees to 2-3 deg), effectively contributes to the optimization of the force vector emphasis propulsion, the propeller - shaft housing, which in turn compensates for the inevitable loss stroke of the motion of the ship against the waves and wind in conditions of considerable amplitude pitching.

Install on each side of the conduit with its outer side formed spiral vertical stripes turbulizer water flow allows you to take advantage of emerging given the turbulence of the water jet at the output of these cameras to optimize the conditions of the output streams of water from the water supply in the full cycle of the keel and heave, leaving hydro jet device as in surfacing the boat bow and/or stern (depending on the installation location of the hydro jet device), and when submerged, due to pitching. This factor has allowed the et to expand the device at the output of the "middle" of the flow relative to the entrance and get more powerful hydro jet effect without increasing the overall dimensions of the device and to reduce drift of the vessel "under the wind".

Execution flitches inclined to the longitudinal axis of the conduit in a vertical plane at an angle from 7° to 13° in combination with the implementation of the conduit extending along the longitudinal axis of the conduit in a horizontal plane, and the implementation of flat plates bent symmetrically and convex relative to the longitudinal axis of the conduit in a horizontal plane with the formation of an obtuse angle from 167° to 173° provides for reciprocating movement up and down the hydro jet device during pitching of the vessel reducing hydrodynamic losses in the inlet streams of water in a tapering nozzle and simultaneously accelerate the discharge of a portion flows to the side walls, which in turn justifies the cross-section nozzles created by the flow of water cravings. The increase in bending of plates causes the creation of the transverse component of flow, which leads to a decrease of the axial velocity component of the flow of water and reduce the generated thrust. The reduction of bending of plates does not allow for redistribution of flow from the Central region of the nozzle to its lateral walls and, as a consequence, it is not possible to effectively align the flow velocity at the cross section of the nozzle. The increase of inclination to the longitudinal axis of the conduit soy is IntelliJ strips facilitates the entrance of water flow from the front side, but reduces the flow in the vertical plane, which reduces the generated thrust when pitching motion. At the same time reducing skew lattices leads to an increase in frontal hydraulic resistance. Thus, the experimentally obtained above ranges of angles ensure the establishment of a maximum possible thrust hydro jet device during rolling of the ship and moving it in stormy weather.

When the vessel is moving forward, the water in the process of wrapping a spiral vertical turbulizer along the side walls of the conduit is formed vortices with turbulence given direction of rotation. The resulting turbulent swirling flow of water has a positive effect on the exit velocity of the flow of water from conduit hydro jet device as in surfacing the boat bow and/or stern (depending on the installation location of the hydro jet device), and when submerged, due to pitching. This factor allows the device extending along the water stream at the output of the "middle" of the flow (the flow of water between the cascades nozzles) with respect to the input and get a more powerful hydro jet effect, almost without increasing the overall dimensions of the hydro jet device.

Installed on the ship below the waterline on the spot nasal Bulba hydro jet device call is employed to convert the energy of the vertical and pitching of the ship in hydro jet energy which in turn helps to stabilize the position of the vessel in heavy weather sailing and reduce rocking of the ship. In addition, the device in combination with positive qualities Bulba to reduce the hydraulic resistance to the movement of the vessel converts the energy of pitching in hydro jet energy of a jet of water, which is at the front during the vessel is able to compensate some loss of speed of the vessel in heavy weather against waves without increasing the speed of the screw, which saves fuel consumption in heavy weather sailing.

Figure 1 presents a photograph of the hydro jet device.

Figure 2 presents a drawing of the side view with the conventional transparent side walls.

Figure 3 presents a drawing of the top view on the hydro jet device.

Hydro jet device for converting mechanical energy pitching of the ship in hydro jet energy contains the conduit 1, is made in the form of arranged symmetrically about its longitudinal axis system tapering along the flow nozzles 2, 3, 4, 5, 6, 7 with input intake holes 8, 9, 10, 11, 12, 13, educated vertical side walls 14 and flat plates 15, 16, 17, 18, 19, 20, 21 and 22 with concave relative to the longitudinal axis 23 of the conduit 1 input area.

The conduit 1 is divided at least into two cascade 24 and 25, the distance between the m of which is formed symmetrically relative to its longitudinal axis 23 of the nozzle system, in one of the nozzles 2, 3 and 4 and in another 5, 6 and 7. Vertical side walls 14 are made common to each of the cascade 24 and 25, respectively nozzles 2, 3, 4, 5, 6, 7 with beveled along the flow front edges 26 and 27, forming an obtuse angle α, the vertex of which is located on the longitudinal axis 23 of the conduit 1. Each subsequent cascade, i.e. the cascade 25, located at the cascade 24 in the course of the flow of water, made increasing height. Cascades 24 and 25 are interconnected by means of connecting strips of the upper 28 and lower 29. Each stage 24 and 25 of the conduit 1 has a top 30 and bottom 31 of the outer channels, at least one inner upper 2 and 5 and one internal bottom 4 and 7 nozzles and one Central nozzle 3 and 6, and input the intake hole 8 and 12 of the Central nozzle 3 and 6 is vertically perpendicular to the longitudinal axis 23 of the conduit 1.

Connecting straps 28 and 29 is inclined to the longitudinal axis 23 of the conduit 1 in the vertical plane at an angle β from 7° to 13°. The conduit 1 is made extending along the longitudinal axis 23 of the conduit 1 in the horizontal plane. Flat plate 15, 16, 17, 18, 19, 20, 21 and 22 are bent symmetrically and convex relative to the longitudinal axis 23 of the conduit 1 in a horizontal plane with the formation of an obtuse angle γ from 167° to 173°.

The outer side of the side wall 14 of the conduit 1 is formed a spiral vertically the mi stripes energizers 32 water flow.

Hydro jet device installed in the fore part of the hull and/or from the stern below the waterline, which allows hydro jet device to realize their potential fluctuations in the vessel in the direction of the vertical axis (up) and angular oscillations around a transverse axis (pitching).

Energy conversion pitching in reactive focus is the result of filling a narrowing in the course of the flow of water nozzles 2, 3, 4, 5, 6 and 7 and the outer channels 30 and 31 through the intake holes 8, 9, 10, 11, 12, 13 the device with water and push the water flows by the pressure of the flow of water through the said nozzle stages 24 and 25 and output streams of water from the nozzles 2, 3, 4, 5, 6 and 7 at a speed faster than logging into these channels, and in the opposite direction to the movement of the vessel on front fly, creating a hydrodynamic focusing.

Essentially hydrodynamic device or devices mounted or mounted on the hull of a ship, working as additional hydro jet propulsion, disposing the vibration energy of the mass of the ship in the incident wave and giving the vessel an additional "stop" when moving in forward motion against the waves.

As an example of the use of the hydro jet device offers a more detailed description of his work for the version of oscillation of the vessel around the transverse axis (Ki the Wake of pitching).

When driving the hydro jet device installed in the bow of the vessel, forward and upward in the water column moves hydro jet device forward and up. At the top of the outer channel 30, to the upper nozzle 2 and 5 and located in the center of the nozzle 3 and 6 of each cascade 24 and 25 are intensively fed water. Partially water flows into the lower channel 31 and are located below the nozzle 4 and 7.

At the entrance to the channels specified flows are under the pressure of the water lapping on the device and, in addition, in each subsequent cascade 25 after the first stage 24.

The pressure of the incoming water provides flow through the above nozzles 2, 3, 5, 6, which change in a given direction along the vessel flows of water, as well as creating conditions for passing the flow of water through these nozzles 2, 3, 5, 6 to create due to the compression stream is higher than at the entrance, the velocity of the flow at the outlet of the hydrodynamic device that allows you to convert the energy of pitching in hydro jet force directed horizontally in the direction of travel of the vessel.

When driving forward end of the ship forward and down movement mounted on a fore end of the vessel hydro jet device forward and down. Located in the bottom of the nozzle 4 and 7 and located in the center with the La 3 and 6 intensive water comes. Partially water enters the top of the nozzle 2 and 5. Otherwise, the same processes take place energy conversion pitching in hydro jet energy, as described above.

In addition, hydro jet device DAMPS disturbing force, swinging ship, and counteracts these forces like hydrogenosome, both inside and outside of the hydro jet device is formed of multiple vortices, trying to maintain the position of their axes of rotation, which helps to stabilize the position of the ship on course and reduce pitching of the vessel, especially in stormy conditions.

The present invention can be used wherever there is a need to transform the energy waves, causing rocking of the ship, hydro jet energy producing work to maintain the speed of the vessel at the front of the fly in stormy sailing conditions, primarily in the shipbuilding industry.

Hydro jet device for converting mechanical energy pitching of the ship in hydro jet energy containing conduit is made in the form of arranged symmetrically about its longitudinal axis system tapering along the flow nozzle with inlet water intake holes formed by vertical side walls and flat plates with concave relative to the longitudinal axis of the conduit input part is kOhm, moreover, the conduit is divided into at least two cascade, each of which is formed symmetrically relative to its longitudinal axis, the nozzle system, the vertical side walls are made common to each of the cascade nozzles, with beveled along the flow front edges forming an obtuse angle, the apex of which is located on the longitudinal axis of the conduit, each subsequent stage is executed by increasing the height of the cascades are interconnected by means of connecting bars, each stage of the pipeline has upper and lower external channels, at least one inner top and one internal bottom nozzle and one Central nozzle, and the input the intake hole of the Central nozzle is vertically perpendicular to the longitudinal axis of the conduit, wherein the interposer is inclined to the longitudinal axis of the conduit in a vertical plane at an angle from 7° to 13°, the conduit is made extending along the longitudinal axis of the conduit in a horizontal plane, a flat plate bent symmetrically and convex relative to the longitudinal axis of the conduit in a horizontal plane with the formation of an obtuse angle from 167° to 173°, the outer side of the side walls of the conduit installed educated spiral vertical stripes energizers flow of water.



 

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EFFECT: increasing efficiency of its use during conversion of wave energy to hydraulic jet energy, increasing use efficiency of hydraulic jet device at conversion of wave energy to hydraulic jet energy.

FIELD: power industry.

SUBSTANCE: hydraulic jet device includes water conduit made in the form of system of channels with inlet water intake holes, which are located symmetrically relative to its longitudinal axis, vertical side walls common for all channels and with curved walls which are horizontal in cross section of channels, forming nozzles converging in the flow direction and having the outlet holes for conversion of mechanical energy of the ship's rolling to hydraulic jet energy; at that, system contains two stages of energy conversion, which are located one after the other, each of the stages is made in the form of system of channels located one above the other in vertical longitudinal plane of the water conduit section and symmetrically relative to its longitudinal axis; at that, the first stage has two upper and lower external channels, at least two upper and lower internal channels, and one central channel, and the second stage has two upper and lower external channels and one central channel the input of which is interconnected with output of channels of the first stage; horizontal walls of channels are curved in longitudinal direction with plates, upper and lower external and internal channels of the first stage and upper and low external channels of the second stage are located opposite to each other, and inlet water intake hole of central channel is located in vertical plane perpendicular to longitudinal axis of water conduit; external walls of upper and lower external channels of the first and the second stages are concave relative to longitudinal axis of water conduit, upper and lower walls respectively of upper and lower internal channels of the first stage, which are common with lower and upper wall of upper and lower external channels of the first stage, as well as upper and lower walls of central channel of the second stage, which form lower and upper walls of external channels of the second stage are made of straight plates with inlet section which is convex relative to longitudinal axis of water conduit, and horizontal curved walls of central channel of the first stage are made of straight planes with the section concave relative to longitudinal water conduit axis and located on the side of inlet water intake hole and are at the same time the walls of upper and lower internal channels of the first stage; at that, at the output of the second stage there installed on water conduit is the shell forming the channel diverging in the flow direction, and water intake holes are formed above upper external and under lower external channels of the second stage of water intake holes.

EFFECT: increasing use efficiency of hydraulic jet device at conversion of wave energy to hydraulic jet energy.

4 dwg

Hydrojet device // 2362045

FIELD: engines and pumps.

SUBSTANCE: invention is related to devices for transformation of waves energy, in particular, for transformation of vessel vibration energy into hydrojet energy. Hydrojet device comprises channel-tube system, lateral right 1 and left 2 walls of device. System consists of fixed straight and profiled plates. It contains the first and second stages of energy transformation. The first stage of energy transformation includes wall 3 of central pipeline 4, wall 5 of internal channel-pipeline, internal channel - pipeline 6, external wall 7 of external channel-pipeline 8. The second stage of transformation includes wall 9 of central pipeline 10, wall 11 of internal channel-pipeline 12, internal channel- pipeline 12 and external wall 13 of external channel-pipeline 14. Central channels 4 and 10 are arranged with inlets 15. Also cutoff plates 16 are installed in channels.

EFFECT: invention makes it possible to use all energy of waves, independently on angle of flow striking at device along its longitudinal axis, which results in higher efficiency of device application during transformation of waves energy into hydrojet energy and stabilisation of vessel position.

2 dwg

FIELD: engineering industry.

SUBSTANCE: invention refers to wave energy conversion devices and is meant for converting ship's vibration energy into hydrojet energy. Device includes a water conduit provided in bow bulb of the ship. Therein arranged is device meant for conversion of mechanical energy into hydrojet one. That device is made in the form of chambers. Chambers are located one above the other in a vertical longitudinal plane of water conduit section and symmetrically relative to its longitudinal axis. Each chamber is provided with an inlet water-intake opening. Walls of chambers form nozzles with outlet openings, which narrow in the flow direction. Hydrojet energy of water jet at the ship's going ahead can compensate some part of lost speed. In order to stabilise ship's position at strong side wind, on each side wall of bulb on its external side there provided is a vertical chamber with an inlet opening from the side of bulb front. Nozzles provided in the flow direction forward the outgoing flow to the sides from external side wall of the bulb, thus creating jet reaction in the direction opposite to direction of ship's transfer. After each vertical chamber in side wall of the bulb there provided are outlet openings of water conduit.

EFFECT: converting ship's vibration energy into hydrojet energy.

2 cl, 3 dwg

Hydrojet device // 2342559

FIELD: motors and pumps.

SUBSTANCE: invention relates to devices for wave energy conversion including vessels swinging energy to hydrojet energy. Device includes water conduit in the shape of chambers (C), which are symmetrical with regard to longitudinal axis of device. Chambers are provided with water intake inlets (I) and curvilinear walls, which are horizontal in cross-section. Walls constrict to nozzles with outlets I. Device includes one central C, two external C and no less than two internal chambers C. All chambers C are rectangular in cross-section. Vertical walls of chambers C are formed by flat horizontal plates (P). Horizontal in cross section C walls C are formed by curvilinear in longitudinal section plates P. Inlets I of external chambers C are located along horizontal walls of rectangular plates P forming vertical walls C. They are directed opposite to each other. Inlets I of internal chambers C are situated at an angle to water conduit longitudinal axis and form obtuse angle together with inlets I of external chambers C in vertical longitudinal cross section. The inlet I of the central C is situated vertically and perpendicular to longitudinal axis and along vertical walls of plant rectangular plates P forming vertical walls of water conduit. The external wall of the external chamber C is made concave with regard to longitudinal axis of water conduit. Curvilinear walls of internal chambers C, which are common with external chamber C consist of smoothly bent plates P with convex section regarding longitudinal section from the side of inlet I and with convex section regarding outlet nozzle I. Two concave curvilinear plates are installed at the inlet part of the central chamber and are symmetrical with regard to longitudinal axis. Curvilinear plate P, which is convex regarding longitudinal axis, is installed at the inlet part of each internal chamber.

EFFECT: improvement of wave energy conversion into hydrojet thrust energy.

2 cl, 2 dwg

FIELD: engines and pumps.

SUBSTANCE: device incorporates water duct arranged in the ship bow bulb housing appliance of converting mechanical energy in hydraulic-jet power representing a set of chambers arranged one above the other in the said water duct lengthwise section and in symmetry with the said duct lengthwise axis. Every chamber incorporates an inlet water-intake hole, the chamber walls forming the nozzles narrowing streamwise and furnished with outlet holes. The proposed device incorporates one central chamber, two external upper and lower chambers and, at least, two internal upper and lower chambers the water duct chamber side walls are formed by the bulb lateral walls. The water duct chamber upper and lower walls represent lengthwise-curvilinear and horizontal-section plates. The central chamber inlet accommodates two concave curvilinear plates arranged in symmetry with the water duct lengthwise axis. The inlet of every internal chamber houses a curvilinear plate concave relative to the water duct lengthwise axis.

EFFECT: conversion of ship heaving and pitching energy into hydraulic-jet power, ship stabilisation in storm.

1 dwg

The invention relates to shipbuilding, namely to ship devices that reduce the drift velocity of the ship through the use of energy pitching

The invention relates to shipbuilding, to devices for providing maneuvering vessels and reduce pitching due to the reaction of the resulting jets

FIELD: engines and pumps.

SUBSTANCE: device incorporates water duct arranged in the ship bow bulb housing appliance of converting mechanical energy in hydraulic-jet power representing a set of chambers arranged one above the other in the said water duct lengthwise section and in symmetry with the said duct lengthwise axis. Every chamber incorporates an inlet water-intake hole, the chamber walls forming the nozzles narrowing streamwise and furnished with outlet holes. The proposed device incorporates one central chamber, two external upper and lower chambers and, at least, two internal upper and lower chambers the water duct chamber side walls are formed by the bulb lateral walls. The water duct chamber upper and lower walls represent lengthwise-curvilinear and horizontal-section plates. The central chamber inlet accommodates two concave curvilinear plates arranged in symmetry with the water duct lengthwise axis. The inlet of every internal chamber houses a curvilinear plate concave relative to the water duct lengthwise axis.

EFFECT: conversion of ship heaving and pitching energy into hydraulic-jet power, ship stabilisation in storm.

1 dwg

Hydrojet device // 2342559

FIELD: motors and pumps.

SUBSTANCE: invention relates to devices for wave energy conversion including vessels swinging energy to hydrojet energy. Device includes water conduit in the shape of chambers (C), which are symmetrical with regard to longitudinal axis of device. Chambers are provided with water intake inlets (I) and curvilinear walls, which are horizontal in cross-section. Walls constrict to nozzles with outlets I. Device includes one central C, two external C and no less than two internal chambers C. All chambers C are rectangular in cross-section. Vertical walls of chambers C are formed by flat horizontal plates (P). Horizontal in cross section C walls C are formed by curvilinear in longitudinal section plates P. Inlets I of external chambers C are located along horizontal walls of rectangular plates P forming vertical walls C. They are directed opposite to each other. Inlets I of internal chambers C are situated at an angle to water conduit longitudinal axis and form obtuse angle together with inlets I of external chambers C in vertical longitudinal cross section. The inlet I of the central C is situated vertically and perpendicular to longitudinal axis and along vertical walls of plant rectangular plates P forming vertical walls of water conduit. The external wall of the external chamber C is made concave with regard to longitudinal axis of water conduit. Curvilinear walls of internal chambers C, which are common with external chamber C consist of smoothly bent plates P with convex section regarding longitudinal section from the side of inlet I and with convex section regarding outlet nozzle I. Two concave curvilinear plates are installed at the inlet part of the central chamber and are symmetrical with regard to longitudinal axis. Curvilinear plate P, which is convex regarding longitudinal axis, is installed at the inlet part of each internal chamber.

EFFECT: improvement of wave energy conversion into hydrojet thrust energy.

2 cl, 2 dwg

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