EP4010243A1 - Dispositif de déplacement d'un véhicule nautique - Google Patents
Dispositif de déplacement d'un véhicule nautiqueInfo
- Publication number
- EP4010243A1 EP4010243A1 EP20757649.7A EP20757649A EP4010243A1 EP 4010243 A1 EP4010243 A1 EP 4010243A1 EP 20757649 A EP20757649 A EP 20757649A EP 4010243 A1 EP4010243 A1 EP 4010243A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- chamber
- propulsion
- actuator
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- 238000006073 displacement reaction Methods 0.000 claims description 110
- 230000033001 locomotion Effects 0.000 claims description 48
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/30—Propulsive elements directly acting on water of non-rotary type
- B63H1/37—Moving-wave propellers, i.e. wherein the propelling means comprise a flexible undulating structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/101—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means for deflecting jet into a propulsive direction substantially parallel to the plane of the pump outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/06—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of reciprocating type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/103—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H19/00—Marine propulsion not otherwise provided for
Definitions
- This description relates to the field of marine transport. More specifically, aspects of the present description relate to a movement device for a watercraft.
- a propeller (or traction) of a watercraft uses the action-reaction phenomenon to apply thrust to it.
- the propulsion of a ship is based on a rotational movement of a plurality of blades, called blades, distributed around a central axis of a propeller submerged in water, and arranged inside or in the water. exterior of this ship.
- the propeller motors used in the field of transport have very low yields. Rather than propelling the water directly in a given direction, these motors tend to stir the water in all directions.
- such engines have a high consumption of fuel, and in particular of gasoline or diesel. This consumption is all the greater as the size and mass of the watercraft to be moved is large, which causes considerable environmental pollution. This pollution results for example from poor quality fuels, oil spills or degassing.
- a general object of the invention is to provide a propulsion device for a watercraft which respects the environment.
- the propulsion device provided by the invention also considerably reduces the risk of injury.
- the propulsion device provided by the invention is both compact and efficient.
- a first object of the invention relates, in general, to a movement device for a watercraft, said device comprising:
- At least one propulsion chamber comprising a first inlet section of a liquid, called the upstream edge, and a second outlet section of said liquid, said downstream edge;
- a watercraft designates any type of floating or submersible vehicle suitable for moving on a liquid and / or in this liquid, in particular water. Such a vehicle can be partially or totally immersed in the liquid. This vehicle can be piloted by any means on board, remotely, or independently.
- Examples of floating water vehicles include boats, motorized or not, such as sailboats, yachts, pleasure craft, small boats, marine drones, model machines, buoys, motorized water vehicles , personal watercraft, rigid hull boats, semi-rigid boats (or zodiacs), inflatable boats, water toys such as rowing boards (or “paddles”, in English) motorized platforms, water bikes, pedal boats, hydro-propelled lift, motorized surfboards on foils or not, submersible amphibious vehicles and transport vessels such as ferries, tankers, trawlers, freighters, barges or even hovercraft.
- Examples of submersible vehicles include any type of machine configured to operate underwater for an extended period.
- a submersible vehicle can be a submarine, a torpedo, an amphibious submersible vehicle, a submersible drone, a remotely-guided underwater vehicle, a water toy such as a diving thruster, model submersible devices, or even a bathyscaphe.
- the displacement device converts mechanical power into hydraulic power, said power corresponding to the product of a flow rate by a pressure, for a given liquid.
- said displacement device for a nautical vehicle allows, by the thrust generated during the corrugation of the membrane, to propel the latter relative to the liquid and in a direction opposite to the movement of the liquid in said chamber of propulsion.
- a watercraft can be set in motion in forward or reverse gear.
- the pressure differences produced between the upstream edge and the downstream edge of a propulsion chamber of a displacement device are typically of the order of one hundredth. of bar or tenth of a bar, but can also be of the order of the bar or of several bars.
- these pressure differences are less than 16 bars.
- the flow rates produced may vary depending on the properties and dimensions of the displacement devices, the propulsion chambers, the flexible membranes and the actuators used.
- the device comprises at least two propulsion chambers, for example two, three or four propulsion chambers, each of the propulsion chambers comprising a first liquid inlet section, said upstream edge, and a second outlet section for said liquid, called the downstream edge.
- the device comprises at least one propulsion chamber in which at least two flexible membranes are housed, for example two, three or four flexible membranes.
- the device comprises at least two actuators, for example two, three or four actuators, configured to generate a thrust of the device by a waving of at least one membrane between an upstream edge and a downstream edge of at least one propulsion chamber that the device comprises.
- said thrust is produced by the corrugation of the membrane with a predetermined frequency and amplitude.
- a corrugation of a membrane can be understood as an alternation of a direction of movement of said membrane.
- a particular choice of a frequency and a ripple amplitude for a given membrane makes it possible to adjust the thrust generated and therefore the propulsive force of the displacement device, which can be useful depending on the speed desired, the loading of the device, or even the environmental conditions in which the device operates, for example temperature, swell or even weather.
- a ripple frequency of a membrane is typically greater than 0 hertz and less than 1000 hertz, and preferably greater than 0 hertz and less than 200 hertz.
- a peak-peak ripple amplitude of a membrane is typically less than half the length of this membrane between its upstream edge and its downstream edge, and preferably less than one fifth of the length of this membrane.
- a substantially equal ripple frequency to within a few hertz, to a natural frequency or to a beat frequency of the membrane or of an actuator in order to transmit optimum power to the liquid. during its movement in the device, or to reduce the vibrations produced when the latter is in operation.
- the number of wavelengths between the upstream edge and the downstream edge is less than five undulations.
- the number of wavelengths is less than one corrugation in the case of stiff membranes allowing higher hydraulic powers than those of flexible membranes.
- said waving comprises movement of at least one end of the membrane by at least one actuator.
- the propulsion chamber comprises at least one volume, the volume being formed by at least one wall connecting the upstream edge and the downstream edge.
- flanges the wall or walls connecting the upstream edge and the downstream edge of a propulsion chamber are referred to as flanges.
- This or these flanges has or has the function of isolating the moving liquid inside the propulsion chamber from the rest of the device, which makes it possible to increase the pressure differential created by the corrugation of the membrane, to generate propulsion.
- the inlet and outlet sections are arranged, and may optionally be adjustable, in operation or not, so as to give optimum thrust and speed to a vehicle comprising the device.
- the inlet and outlet sections are arranged to allow adjustment of the attitude of the propulsion chamber or of the vehicle.
- the device comprises at least two propulsion chambers arranged in series or in parallel.
- two propulsion chambers are said to be arranged in series when the downstream edge of one of said chambers is located substantially in alignment with the upstream edge of the other of said chambers.
- the downstream edge of one chamber can act as the upstream edge of another chamber.
- Two propulsion chambers are also said to be arranged in series when they are connected by a circuit, in particular a hydraulic circuit, so that the fluid is directed from the downstream edge of the first chamber to the edge upstream of second chamber.
- a circuit in particular a hydraulic circuit
- two propulsion chambers are said to be arranged in parallel when the downstream edge and the upstream edge of one of said chambers is substantially parallel to the downstream edge of the other of said chamber and when the upstream edge of the one of the chambers is substantially parallel to the upstream edge of the other of the chambers.
- Two propulsion chambers are also said to be arranged in parallel when they are connected by a circuit, in particular a hydraulic circuit, so that the fluid is directed from the upstream edges of the first and of the second chamber towards the edges downstream of the first and second chamber.
- two propulsion chambers arranged in parallel may have an upstream edge and / or a common downstream edge (s).
- Arranging, in a displacement device, several propulsion chambers in series, in parallel or in other configurations makes it possible to proportionally increase the thrust or the speed generated by the device, and therefore the thrust or the speed supplied to a watercraft comprising such a device, compared to a device which would only include a propulsion chamber.
- an example comprising several propulsion chambers arranged in parallel makes it possible to increase the flow rate for a pressure which varies little, which makes it possible to enhance the thrust to the detriment of speed.
- an example comprising several propulsion chambers arranged in series makes it possible to increase the pressure for a flow rate which varies little, and therefore to enhance the speed at detriment of thrust.
- At least two membranes housed in the same chamber undulate, thanks to at least one actuator, with a phase shift by an angle chosen from a group comprising: an angle substantially equal to 0 °, a angle substantially equal to 90 °, an angle substantially equal to 180 °, an angle substantially equal to 270 °, and an angle substantially equal to 360 ° divided by the number of membranes in said chamber.
- a phase shift angle substantially equal to another is an angle whose value is equal to the value of this other angle with an accuracy of plus or minus 10 °, and preferably, with an accuracy of more or less 5 °.
- an undulation of two membranes in phase opposition makes it possible to compensate for the unbalances due to the movements of masses of liquid by these membranes, and to the masses of the moving parts of the actuator (s), since the first membrane undulates in a first direction and the second membrane waves in a second direction, opposite to the first direction.
- Two or more membranes can for example undulate with other phase shift values, to promote particular modes of movement or to reduce noise or vibrations produced by the operation of the displacement device.
- each propulsion chamber of this device comprises a corrugated membrane with a phase shift of 360 ° divided by the number of phases, ie here three phases, to have a phase shift of 120 °.
- said at least one flexible membrane and said at least one actuator are configured to generate energy from movement of the actuator through the flexible membrane.
- At least one actuator can be connected to a membrane.
- the membrane may be constrained between its upstream and downstream edges, forcing it to present undulations between them, undulations which increase the resistance of the membrane to the movement of the fluid and which therefore increase the power generated.
- the upstream edge or the downstream edge comprises at least one liquid deflector.
- At least one deflector is located near at least one end of the membrane makes it possible to direct the liquid to the surroundings thereof and to limit turbulence in the propulsion chamber.
- a second object of the present invention is to provide a watercraft comprising a hull and a displacement device according to any of the preceding objects and embodiments.
- an admission and a discharge of the liquid are made respectively in front of the zone where the displacement device is located, and in in particular, of at least one propulsion chamber that comprises said displacement device.
- a first element of the hull consists of the upstream edge of at least one propulsion chamber and a second element of the hull consists of the downstream edge of the propulsion chamber of said device.
- an admission and a discharge of the liquid used to propel the watercraft is carried out respectively at the front of the zone where the displacement device is located and at the rear of this zone, to promote a sense of steering of this nautical vehicle, when it requires preferential steering (normal operation in forward gear).
- such displacement devices make it possible to provide a nautical vehicle with motive powers of less than 10,000 Watts for model making, less than 40,000 Watts for nautical toys, greater than 200 watts for recreational nautical vehicles, and greater at 100,000 Watts for water vehicles transporting goods or people.
- FIG. 1 shows a schematic view of a displacement device according to a first embodiment of the invention
- FIG. 2 shows a schematic view of a displacement device according to a second embodiment of the invention
- FIG. 3 shows a schematic view of a displacement device according to a third embodiment of the invention
- FIG. 4 corresponds to views 4A and 4B which represent, respectively, a perspective view and a vertical view of a displacement device according to a fourth embodiment of the invention
- FIG. 5 shows a schematic view of a displacement device according to a fifth embodiment of the invention.
- FIG. 6 corresponds to views 6A and 6B which represent, respectively, a perspective view and a vertical view of a displacement device according to a sixth embodiment of the invention
- Figure 7 shows a schematic view of a displacement device according to a seventh embodiment of the invention.
- Figure 8 shows a schematic view of a displacement device according to an eighth embodiment of the invention.
- FIG. 9 shows a schematic view of a displacement device according to a ninth embodiment of the invention.
- FIG. 10 shows a schematic view of a displacement device according to a tenth embodiment of the invention.
- FIG. 11 corresponds to views 11A, 11 B and 11 C which represent different modes of operation of a displacement device according to an eleventh embodiment of the invention
- FIG. 12 shows a schematic view of a displacement device according to a twelfth embodiment of the invention.
- FIG. 13 shows a schematic view of a displacement device according to a thirteenth embodiment of the invention.
- FIG. 14 represents a perspective view of a watercraft comprising a displacement device according to a fourteenth embodiment of the invention
- FIG. 15 corresponds to views 15A and 15B which respectively represent a perspective view of a watercraft comprising a displacement device according to a fifteenth embodiment of the invention, and a perspective view of a device. displacement included in this watercraft;
- FIG. 16 corresponds to views 16A, 16B and 16C which respectively represent a perspective view, a perspective sectional view and a schematic sectional view of a displacement device according to a sixteenth embodiment
- FIG. 17 corresponds to views 17A, 17B and 17C which respectively represent a perspective view, a perspective sectional view and a schematic sectional view of a displacement device according to a seventeenth embodiment.
- FIG. 1 represents a schematic view of a displacement device for a nautical vehicle 100 according to a first embodiment of the invention.
- the device 100 comprises a propulsion chamber 50 defining a cavity located between a first edge, said upstream edge 50a, and a second edge, called downstream edge 50b.
- the device 100 is partially or completely immersed in a liquid, in particular water, and is moving relative to this liquid with a given relative speed.
- the device 100 is not submerged but at least part of a watercraft that the said device comprises is submerged and arranged to suck up water.
- the device 100 may be moving at a first speed relative to a volume of water moving at a second other speed.
- the device 100 can thus move relative to a still or moving volume of water at any speed and direction.
- the upstream edge 50a is defined so as to correspond to the inlet section through which the water enters the propulsion chamber with a flow F1, and in general, into the displacement device. [0107] In the present documents, the terms flow and rate are used in an equivalent manner.
- the downstream edge 50b is defined so as to correspond to the outlet section through which the water is discharged out of the propulsion chamber with a flow F2, and in general, out of the displacement device. .
- the movement of the device, and therefore of the propulsion chamber can be reversed in operation so that the upstream edge 50a then corresponds to the outlet section and so that the downstream edge 50b corresponds to the inlet section.
- the propulsion chamber 50 is surrounded by two walls, called flanges 10 and 20, which can define various and varied profiles.
- the propulsion chamber 50 can also include at least one asperity.
- a flange is generally a rigid wall, but in a nonlimiting manner, can also be a flexible wall having a certain elasticity.
- a flange defining a wall of a chamber propulsion unit can be a hull element of a nautical vehicle, for example a hull element of a boat.
- the flanges 10 and 20 are arranged so as to give the propulsion chamber 50 a converging profile, that is to say that the section corresponding to the downstream edge 50b has a surface less than the section corresponding to the upstream edge 50a.
- the flanges 10 and 20 can also be arranged so as to give the propulsion chamber 50 a divergent profile, that is to say that the section corresponding to the downstream edge 50b has an upper surface to the section corresponding to the upstream edge 50a.
- the flanges 10 and 20 can also be arranged so as to give the propulsion chamber 50 a constant profile, that is to say that the section corresponding to the downstream edge 50b has an area substantially equal to the corresponding section. at the upstream edge 50a.
- the converging profile given to the chamber thanks to the flanges 10 and 20 reinforces this pressure difference, and therefore increases the thrust generated by the corrugation of the membrane M1 in the propulsion chamber, by displacement of the liquid from the upstream edge 50a towards the downstream edge 50b.
- the displacement device further comprises an additional part disposed near the downstream edge of the propulsion chamber, outside thereof and in its alignment.
- This part has an inlet section substantially equal to the outlet section of the propulsion chamber. Said part can in this case act as a useful steering nozzle and makes it possible to increase the speed of the outgoing liquid and therefore of a watercraft comprising the displacement device comprising such an additional part.
- the device 100 further comprises a flexible membrane M1, said membrane being housed in the propulsion chamber 50 of the device 100.
- a flexible membrane is any type of membrane arranged to oscillate with an amplitude and a predetermined frequency.
- a flexible membrane can have a specific geometry, for example rectangular, discoidal or tubular.
- a flexible membrane preferably consists of a sheet of deformable material, elastic or not, a deformation of this membrane which can for example be carried out at least in bending around an axis of the membrane.
- a flexible membrane is made of non-deformable material, the actuator is then designed to give flexibility to the membrane, in particular by allowing the actuated edge of the membrane to be offset.
- a flexible membrane may or may not be profiled and comprises one or more materials, said materials possibly being of different shapes, thicknesses, and dimensions, variable from the upstream edge to the downstream edge, and characterized by different values of strength, elastic limit, Young's modulus, shear modulus, Poisson's ratio, etc.
- a flexible membrane can be composed of a plurality of parts or lamellae articulated together, which can directly or indirectly be fixed to a deformable structure.
- an attachment of the flexible membrane M1 is implemented in at least one attachment point P1, this attachment point P1 connecting the flexible membrane M1 to at least one actuator A1, for example a control device.
- mechanical displacement such as a piston, a connecting rod, or a moving part, whether magnetized or not.
- the housing of a flexible membrane in the chamber is implemented so that a first end of the membrane is located near the upstream edge of the chamber and that a second end of the membrane is located near the downstream edge.
- the flexible membrane M1 has a leading edge, located near the upstream edge 50a, and a trailing edge, located near the downstream edge 50b.
- the membrane M1 is set in oscillation by the actuator A1, for example from an attachment point P1 located near the leading edge, the flexible membrane M1 becomes the seat of a traveling wave which propagates along the membrane between the leading edge and the trailing edge.
- the characteristics of the flexible membrane for example its elasticity, its tension or its dimensions, are chosen so as to guarantee that they optimize the speed of propagation of traveling waves in the volume of the membrane.
- This undulation causes deformation of the flexible membrane M1 according to a progressive wave which moves from a first edge of the membrane, here the edge of the membrane located near the point of attachment P1, to a second edge, so that at least one point of the membrane situated between these two edges is animated by a transverse oscillating movement.
- a membrane may be defined by a given tension, for example if its leading edge and / or its trailing edge is attached by a fastening means or an actuator.
- the membrane tension may exist in its resting state or under the effect of mechanical stress.
- an actuator can cause it to undulate, causing thus in the membrane, a propagation of a wave in the direction of said voltage.
- an actuator can be any type of actuation means.
- an actuator can be chosen from: an electric motor, a heat engine, a nuclear engine, a hydrogen engine, a hybrid engine, a piezoelectric engine, or even a mechanical engine.
- the motor can provide motion similar to rotary, linear, or radial motion, and may include motion conversion parts to transform one motion into another.
- an actuator can be powered by an energy source chosen from: an electric battery, an electric cell, a battery or a nuclear cell, a battery or a fuel cell, a battery or a battery.
- an energy source chosen from: an electric battery, an electric cell, a battery or a nuclear cell, a battery or a fuel cell, a battery or a battery.
- hydrogen cell a photovoltaic panel, a fuel such as gasoline, diesel or a biofuel, or even a liquid fuel such as an alcohol, an ether or a hydrocarbon.
- an actuator is controlled mechanically or electronically. This control can be done by means of power electronics making it possible to control the movement of at least one membrane, for example by generating the appropriate signal in frequency, force and / or position for optimal propulsion depending on the type of desired navigation, for example depending on whether more or less thrust and speed is required for movement.
- an actuator is driven “instantaneously”, for example by means of a signal comprising a high sampling frequency, or in an “average” manner, that is to say by using the average of several periods of oscillation.
- this makes it possible to avoid impacts between the membrane and the flanges in the event of an air intake, due for example to the presence of bubbles or of a jump of the vehicle above a wave due to of lower load.
- the movement can be electronically regulated in a closed loop.
- the current at its terminals can also be used to implement closed-loop control.
- the position of at least one membrane can be determined by a sensor, for example a sensor that the device or the propulsion chamber comprises, to help control the device.
- a sensor for example a sensor that the device or the propulsion chamber comprises, to help control the device.
- an electronically controlled actuator enables at least one actuator to be animated with a sinusoidal movement to allow the membrane to oscillate sinusoidally.
- the electronic means used for piloting can also communicate with other instruments on board the water vehicle that the device includes, or located remotely.
- the actuator A1 implements a reciprocating movement of the attachment point P1 in two opposite directions.
- One end of the membrane M1 here the end located near the upstream edge 50a of the propulsion chamber 50, is then moved alternately in a direction substantially transverse to the movement of water in the propulsion chamber 50.
- the attachment point P1 is located on or near one end of the membrane M1.
- the flexible membrane M1 is housed in the chamber 50 and connected to an actuator A1 by at least one attachment point located near the upstream edge 50a or near the downstream edge 50b.
- the actuator A1 is located outside the propulsion chamber 50, in a sealed manner or not.
- an actuator connected to at least one flexible membrane housed in the chamber may be located inside the propulsion chamber 50, for example between the flanges 10 and 20 or even inside one. of these flasks.
- At least one membrane, at least one propulsion chamber and at least one flange or one wall of said at least one propulsion chamber have various and varied geometries.
- an undulating membrane and / or at least one associated flange are defined by a rectangular geometry, or the like, such as a trapezoid.
- the walls of the propulsion chamber can delimit a parallelepipedal or flat tubular space, in which a rectangular membrane is arranged to be put into oscillation.
- a rectangular membrane is positioned in a plane parallel to the direction of movement of the liquid displaced in the propulsion chamber.
- an undulating membrane and / or at least one associated flange are defined by a discoidal geometry.
- two coaxial walls may delimit the propulsion chamber, which then has the shape of a flattened cylinder or a stack of layers.
- the undulating membrane, in the form of a disc, is arranged to be placed in oscillation between these walls.
- such a disk-shaped membrane is positioned in a plane perpendicular to the direction of movement of the liquid propelled into the propulsion chamber.
- an undulating membrane and / or at least one associated flange are defined by a tubular geometry.
- the propulsion chamber can be delimited by two walls of revolution and coaxial between which is placed the undulating membrane of tubular shape.
- the corrugation of the membrane can take place in a plane parallel or transverse to a main axis of the propulsion chamber and / or of the displacement device itself. Regardless of the above geometries, however, the orientation of the plane in which the ripple takes place has no direct consequence as to the flow of the liquid. [0155] If the membrane undulates in a plane transverse to the flow of the liquid, the resulting drag in the water will be greater.
- FIG. 2 represents a schematic view of a displacement device for a watercraft 110 according to a second embodiment of the invention.
- the device 110 comprises a propulsion chamber 51 in which are housed two flexible membranes M1 and M2.
- the propulsion chamber 51 is formed by two flanges 11 and 21 substantially parallel and defining a constant profile.
- a single actuator A1 is connected to the two membranes, which are aligned substantially parallel in the propulsion chamber 51.
- the propulsion chamber 51 has any upstream edge and any downstream edge and which are not necessarily aligned with the flanges 11 and 21.
- At least one flange can be a sealed wall.
- a sealed wall can be split on either side of the membrane, which makes it possible to provide two flanges, one upper and the other lower.
- the upstream edge defines any inlet section through which the liquid enters the chamber with a flow F1
- the downstream edge defines any outlet section through which the water is discharged out of the chamber with a flow. F2 and in general, outside the displacement device.
- the separator 31 acting as a means of deflecting the water flowing through the propulsion chamber 51.
- the separator 31 has a profile such that it can be considered that the membranes M1 and M2 each undulate in a separate and respective “sub-cavity”, the profile of which converges due to the shape of the separator 31.
- the separator 31 makes it possible to reduce the disturbances and the turbulence pressure drops resulting from the displacement of liquid located between the membranes M1 and M2.
- the separator 31 is placed so that the incoming water flow F1 separates into two components F11 and F12, the first of these components F11 corresponding to the part of the flow diverted towards the first membrane M1 and the second of these components F12 corresponding to the part of the flow diverted to the second part of the flow.
- FIG. 3 represents a schematic view of a displacement device for a nautical vehicle 120 according to a third embodiment of the invention.
- the displacement device 120 comprises a propulsion chamber 52 in which are housed two flexible membranes M1 and M2, here arranged in series.
- the two membranes M1 and M2 are substantially aligned along the same overall axis in the propulsion chamber 52, this overall axis being for example aligned with the orientation of the flange 22, described below.
- Each of the two membranes M1 and M2 is connected to one of the two actuators A1 and A2.
- the actuator A1 which is connected to the membrane M1 at an attachment point P11, is separate from the actuator A2 which is connected to the membrane M2 at another attachment point P12.
- the displacement device 120 thus comprises a single propulsion chamber 52, two membranes M1 and M2 housed in this chamber and two actuators A1 and A2 arranged to undulate the separate membranes M1 and M2, this undulation possibly being synchronized or not.
- the actuators can be either in phase or out of phase.
- the propulsion chamber 52 is formed by two flanges 12 and 22, the flange 12 having a sawtooth shape and the flange 22 having a substantially linear shape along an axis of the chamber. propulsion 52.
- the respective shapes of the flanges 12 and 22 are such that the membranes M1 and M2 each undulate in a respective sub-cavity with a substantially converging profile.
- the upstream edge and the downstream edge of the chamber 52 are substantially aligned with the flange 22 but not necessarily with the flange 12, which creates a progressive linear reduction in the section of each of these two sub-cavities between the edge upstream and downstream edge of the propulsion chamber 52.
- the corrugation of the first membrane M1 by the first actuator A1 makes it possible to generate an intermediate thrust of the liquid entering through the upstream edge with an entering flow F1.
- This intermediate thrust corresponds to an intermediate flow F3, the liquid thus displaced by the first membrane M1 then reaching the second membrane M2, whose setting in ripple by the second actuator A2 makes it possible to obtain an outgoing flow F2.
- such a displacement device makes it possible to provide a gain in pressure or flow rate compared to other devices such as those described in the preceding figures.
- a pressure gain is obtained.
- a gain in flow rate is obtained.
- such a displacement device also allows at least two membranes, housed in series and / or in different configurations, to undulate while touching or without touching. At least two membranes can also wave in phase or with a given phase shift.
- views 4A and 4B of FIG. 4 respectively represent a perspective view and a vertical view of a displacement device for a watercraft according to a fourth embodiment of the invention.
- the displacement device 125 has an operating mode substantially identical to that of the displacement device 120, the latter comprising a single propulsion chamber in which two flexible membranes M1 and M2 are housed in series.
- the propulsion chamber that the displacement device 125 comprises has an upstream edge located near the leading edge of the first membrane M1, and a downstream edge located near the trailing edge of the second membrane. M2.
- the trailing edge of the first membrane M1 is located near the leading edge of the second membrane M2.
- three actuators are configured to generate a thrust of the displacement device 125 by a corrugation of each membrane.
- two actuators A11 and A12 are connected to the leading edge of the first membrane M1 and a single actuator A13 is connected to the trailing edge of M1.
- two actuators A21 and A22 are connected to the leading edge of the second diaphragm M2 and a single actuator A23 is connected to the trailing edge of M2.
- the actuators A11 and A12 are synchronized with one another, and the actuators A21 and A22 are also synchronized with one another.
- the synchronization between actuators can be such that the second membrane M2 extends the traveling wave of the first membrane M1.
- the membranes M1 and M2 are identical, they can wave in phase by synchronizing the actuators A11 and A12 with the actuators A21 and A22, for example.
- the actuators A11 and A12 with the actuators A21 and A22, for example.
- only one of the two membranes can be rippled, or both membranes can be rippled in phase opposition.
- a thrust reversal can be produced by the displacement device 125, for example to brake the device in a liquid.
- Such braking can be obtained, for example, by using only the actuators A13 and A23 to corrugate the membranes M1 and M2.
- Figure 5 shows a schematic view of a movement device for a watercraft according to a fifth embodiment of the invention.
- the displacement device 130 comprises a single propulsion chamber, formed by two flanges 13 and 23, and in which are housed two membranes M1 and M2, in parallel.
- an actuator A1 is used to cause the two membranes M1 and M2 to wave simultaneously, synchronously or asynchronously, said two membranes not necessarily being aligned or of the same dimensions.
- Views 6A and 6B of corresponding FIG. 6 represent, respectively, a perspective view and a vertical view of a displacement device for a watercraft according to a sixth embodiment of the invention.
- the displacement device 135 comprises a single propulsion chamber in which two membranes M1 and M2 are housed in parallel. Still in the present case, the two membranes M1 and M2 are rectangular in shape and housed one above the other, and each membrane can be corrugated by at least one actuator.
- a corrugation of the flexible membrane M1 can be obtained from its leading edge by means of the actuator A11 and / or A12, or at its trailing edge by means of the actuator A13.
- a corrugation of the flexible membrane M2 can be obtained from its leading edge by means of the actuator A21 and / or A22, or at its trailing edge by means of actuator A23.
- Figure 7 shows a schematic view of a movement device for a watercraft according to a seventh embodiment of the invention.
- the displacement device 140 comprises a single propulsion chamber 54, without separator, in which two membranes M1 and M2 are housed in parallel.
- the walls of the propulsion chamber 54 include two flanges 14 and 24.
- Two separate actuators A1 and A2 are present here to undulate the flexible membranes M1 and M2, the actuator A1 being connected to the first membrane M1 by the attachment point P1 and the actuator A2 being connected to the second membrane M2 through the attachment point P2.
- the actuators A1 and A2 can be one and the same actuator but comprising two mobile parts which oscillate independently, in a synchronized manner, with a phase shift, or not.
- the actuator A1 is located on the side of the flange 14 and the actuator A2 is located on the side of the flange 24, which makes it possible to isolate the two actuators.
- one or the other of the actuators can be placed in a sealed chamber and, for example, allows the membrane to which it is connected to be corrugated through a wall seal.
- a sealed chamber is a chamber which is not in contact with the liquid propelled by the displacement device.
- the actuator is not necessarily in a sealed chamber; however, it can be sheltered from external environmental conditions, such as inclement weather.
- FIG. 8 represents a schematic view of a movement device for a watercraft according to an eighth embodiment of the invention.
- the displacement device 150 comprises a single propulsion chamber 55, without separator, in which three membranes M1, M2 and M3 are housed in parallel.
- the walls of the propulsion chamber 55 comprise two flanges 15 and 25.
- one and the same actuator A1 is used to put the three membranes M1, M2, and M3 in simultaneous undulation, synchronously or asynchronously, said three membranes not necessarily being aligned or of the same dimensions.
- FIG. 9 represents a schematic view of a movement device for a watercraft according to a ninth embodiment of the invention.
- the device 160 comprises two propulsion chambers 56A and 56B in each of which is housed a flexible membrane, M1 or M2.
- the two membranes are positioned in parallel planes.
- the two chambers 56A and 56B are separate.
- these can comprise a common flange, or be separated from one another by a separator, the geometry of which makes it possible, for example, to give the two chambers a preferably convergent profile.
- the upstream edge of the first chamber 56A acts as an inlet section for a first incoming flow F1 and the upstream edge of the second chamber 56B acts as an inlet section for a second incoming flow F3.
- the downstream edge of the first chamber 56A acts as an outlet section for a first outgoing flow F2 of liquid propelled by the membrane M1 from F1
- the downstream edge of the second chamber 56B acts as an outlet section for a second outgoing flow F4 of liquid propelled by the membrane M2 from F3.
- a thrust is generated by the corrugation of the two membranes M1 and M2, in a possibly synchronized manner, so as to provide a sum of outgoing flows F2 and F4 greater than the sum of the incoming flows F1 and F3 d incoming water.
- a single actuator A1 connects the two membranes M1 and M2, which are aligned substantially in parallel and along the same axis in each of the propulsion chambers 56A and 56B.
- the displacement device for watercraft 160 has an output section and a generated thrust which are increased, and in this case, increased in proportion to the number of propulsion chambers present, while a single actuator is sufficient to generate said thrust.
- Figure 10 shows a schematic view of a movement device for a watercraft according to a tenth embodiment of the invention.
- the displacement device 170 comprises two propulsion chambers 57A and 57B of substantially constant profile, which are aligned in parallel and separated by a separator 32 in which two actuators A1 and A2 are located.
- the chamber 57A comprises a flexible membrane M1 which is connected to the first actuator A1 and the chamber 57B comprises a flexible membrane M2 which is connected to the second actuator A2.
- a thrust is generated by the corrugation of the two membranes M1 and M2, in a possibly synchronized manner, so as to provide a total outgoing flow F2 greater than the sum of the incoming flows F11 and F12.
- FIG. 11 represents a displacement device for a watercraft 180 according to an eleventh embodiment of the invention.
- each of the views 11A, 11 B and 11 C illustrates a possible mode of operation of the device 180, which comprises a single propulsion chamber, a single flexible membrane M1 which is housed therein, and two actuators A1 and A2 connected to this same membrane.
- the flanges of the propulsion chamber 58 are here arranged so as to give the latter a converging profile. In a nonlimiting manner, this profile can be divergent or constant according to other possible variants.
- a first actuator A1 is connected to the flexible membrane M1 at a first attachment point P11 which is located near its leading edge
- a second actuator A2 is connected to M1 at a second attachment point P21 which is located near its trailing edge.
- the actuator A1 and the actuator A2 can be one and the same actuator, with different possible attachment points to the membrane M1.
- the actuator A1 can be composed of a part of the actuator A2, or vice versa.
- more power supplied to wave the leading edge of the diaphragm than the trailing edge favors forward travel, while more power supplied to wave the trailing edge rather than the edge. membrane attack promotes reverse.
- the actuator of the upstream edge is the same as that of the downstream edge, but can only actuate one edge at a time.
- view 11A illustrates a "normal" operating mode, in which the membrane M1 is undulated by a reciprocating movement of the actuator A1 as described above.
- a thrust is generated from the upstream edge to the downstream edge to provide an outgoing flow F2 greater than the incoming flow F1.
- this figure also makes it possible to illustrate an operating mode of "reverse propulsion", in which the membrane M1 is undulated by a reciprocating movement of the actuator A2 only.
- the waves propagating in the membrane M1 have a reverse direction of propagation, which allows the liquid to move from the downstream edge to the upstream edge.
- a thrust is generated from the downstream edge to the upstream edge to provide an outgoing flow greater than the incoming flow, and in directions opposite to those represented here by F1 and F2.
- this actuating means also makes it possible to recover the energy from the downstream edge of the membrane M1 which would not have been completely transmitted to the liquid, for example when the watercraft comprising the device 180 is moving forward. , that is to say when the actuator A1 is in operation, or even when the entering flow F1 of liquid in the propulsion chamber is too great, so that the membrane M1 does not allow, by virtue of its characteristics, to provide a higher F2 outgoing flow.
- This is the case, for example, when a watercraft comprising this displacement device navigates on a high-flow watercourse in the same direction, or even for sailboats sailing and having this device.
- View 11B illustrates an operating mode of the “zero propulsion” type, in which the actuators A1 and A2 are used to position the membrane M1 along a flange of the propulsion chamber of the device 180, for example. by moving the leading edge and the trailing edge of M1 near the same flange.
- a single actuator can also be provided to position M1. Indeed, if the upstream actuator is positioned near a flange without a second actuator being present, the other edge of the diaphragm will naturally tend to be placed on the side of the flange where the actuator positions it. A second actuator is therefore not essential in this case.
- this makes it possible to raise the membrane so as, for example, to allow a solid object which is present in the liquid to pass through, for example stones, pieces of plastic, or a piece, so as not to damage the membrane.
- this operating mode makes it possible to reduce and limit the drag due to the membrane in the liquid.
- View 11 C illustrates a “braking” type operating mode, in which actuators A1 and A2 are used to position the leading edge of M1 near a first flange and the trailing edge of M1 along another flange of the propulsion chamber of the device 180, for example a flange which is opposite it.
- FIG. 12 represents a schematic view of a displacement device according to a twelfth embodiment of the invention.
- the displacement device 190 comprises a propulsion chamber 59 of converging profile, a flexible membrane M1 and an actuator AI connected to the latter.
- the displacement device 190 comprises three deflectors D11, D12 and D21.
- two of these deflectors, D11 and D12 are arranged near the upstream edge of the chamber 59 and the third of these deflectors is arranged near the downstream edge of the chamber 59.
- the deflectors D11 and D12 modify the direction of the flow. inflow F1 while the deflector D21 modifies the direction of the outflow F2.
- an orientation of this deflector in a direction substantially parallel to a main axis of the propulsion chamber makes it possible to direct the liquid towards the first inlet section of said chamber, which increases the inlet flow.
- a deflector placed near the upstream edge and oriented in a direction substantially different from a main axis of the propulsion chamber makes it possible to avoid directing the liquid towards the first inlet section of the chamber, this which decreases the inlet flow.
- a deflector is for example a rudder which can be oriented in all directions, and preferably around an axis transverse to the membrane in order to adjust the direction of the propelled liquid or along a parallel axis in order to adjust it. tilt and / or trim.
- the rudder can be next to the thruster, without being located in its flow.
- the deflector can also play the role of wing or braking means such as flaps (“foils” or “flaps”), in order to reduce or increase the drag of the watercraft.
- the displacement device may comprise several horizontal and / or vertical deflectors. In particular, the displacement device can comprise at least one deflector.
- a baffle may be positioned near the middle of an inlet or outlet section, or on either side of an inlet or outlet section.
- the walls of the propulsion chamber can be oriented to direct the displacement device in the liquid, which then serve as deflector walls.
- Figure 13 shows a schematic view of a displacement device according to a thirteenth embodiment of the invention.
- the displacement device 195 comprises a propulsion chamber 595 whose profile, defined by two flanges 19 and 29, is variable.
- the variability of the profile of the propulsion chamber 595 is made possible thanks to the possible mobility of at least one flange, here the flange 29.
- a flexible membrane M1 is housed in the propulsion chamber 595 and is connected to an actuator A1 by an attachment point P1.
- the displacement device 195 further comprises a second actuator A2 connected to the flange 29 by an attachment point P20, while the actuator A1 is furthermore connected to this same flange 29 by an attachment point P10.
- the actuator A1 is thus connected both to the flexible membrane M1 and to the flange 29.
- the modification of the volume of a propulsion chamber can be implemented in a manner synchronized with the corrugation of the flexible membrane M1.
- an actuator A1 can move a leading edge or a trailing edge of a flexible membrane M1 simultaneously with the movement of a flange to which it is also connected.
- several actuators can also be synchronized to move a flange of a propulsion chamber, simultaneously or not with the corrugation of one or more membranes housed in this propulsion chamber.
- At least one flexible membrane and at least one actuator are configured to generate energy from movement of the actuator through the flexible membrane.
- the displacement device operates as an energy generating device, the characteristics of which however remain similar to the embodiments described above.
- the actuator functions here as an electrical generating device.
- the flexible membrane is placed in the propulsion chamber of the energy-generating device, which therefore functions as an energy-generating cavity and the flanges of which define a duct for a flow of liquid moving between the upstream edge and the edge. downstream of the chamber.
- operation as an electrical production device can be implemented automatically from a certain fluid flow speed or from the watercraft, for example for speeds greater than 5 knots.
- the system can orient itself automatically so as to obtain the maximum possible generation.
- the leading edge of the membrane M1 is subjected to a first tension and the trailing edge of the membrane M1 is subjected to a second tension of different values.
- a flow of water circulating in the chamber causes the ripple of the membrane M1, and generates a propagation of waves with a speed whose value depends on the resistance of the membrane M1 to liquid flow, and therefore, the difference in voltage values.
- the membrane M1 is placed in a divergent part of the chamber of the device. This part is shaped to fit the envelope of the amplitude of the waves during their progression in the M1 membrane.
- the mechanical characteristics of the membrane are preferably chosen so that the speed of propagation of the wave is always less than the speed of the liquid passing through the chamber.
- Figure 14 shows a perspective view of a watercraft according to another embodiment of the invention.
- the watercraft 1000 is a boat comprising a semi-rigid hull 1100 and an outboard motor 1200, that is to say a motor located outside the hull 1100.
- the device 200 is fixed to the rear of the watercraft 1000, and preferably to a transom.
- the propulsion chambers that the device comprises can be placed in different positions and along a main axis of a watercraft, for example along a roll axis, so that the thrust generated by the assembly propulsion chambers move the watercraft in a rectilinear fashion along this axis.
- the motor 1200 here comprises a displacement device 200 corresponding to any one of the embodiments described above.
- This motor can be steered by means of a rudder 1050 connected to the displacement device 200 and which can be operated manually or electronically. This makes it possible to have a relative rotation of the chamber with respect to the watercraft, for example to save on means of actuation of the downstream edge by performing a reverse gear by a complete rotation of the engine.
- the relative height of the motor 1200 with respect to the water can be adjusted. This is to prevent damage to the propulsion chamber (s) of the device 200 when the water depth is shallow, or when the vehicle 1000 arrives on solid ground such as a beach.
- an engine comprising the device 200 can be fixed to the vehicle 1000 by means of a flexible seal, for example a seal of the collar type.
- Such a configuration provides a simple, secure nautical vehicle that does not require any major transformation of the hull to accommodate the displacement device.
- the views 15A and 15B represent, respectively, a perspective view of a watercraft comprising a displacement device and a perspective view of such a displacement device, according to yet another embodiment of the invention. .
- watercraft 2000 is a boat comprising a rigid hull 2100 and an inboard engine 2200, that is, an engine located inside the hull 2100.
- the engine 2200 includes a displacement device 300 corresponding to any one of the embodiments described above.
- a first element 310 of the hull consists of the upstream edge of a propulsion chamber of the device 300 and a second element 320 of the hull consists of the downstream edge of said propulsion chamber.
- At least one of the upstream or downstream edges of a propulsion chamber of the device 300 is directly immersed in the liquid used for the propulsion.
- this is the upstream edge, to avoid any ignition problem.
- both the upstream edge and the downstream edge can be formed in the shell 2100 of the vehicle 2000, so that the inlet and outlet of the propulsion chamber is in the shell.
- the hull of the watercraft may include a slope arranged so that the membrane and / or a flange of the propulsion chamber either partially or totally located inside the hull.
- the upstream edge of the propulsion chamber of the device 300 can be arranged so as not to be directly immersed in the liquid.
- the device 300 may include a cavity submerged in the liquid used for the propulsion, the latter connecting the propulsion chamber to the liquid.
- this cavity can be filled with liquid when the watercraft is launched, which improves the start-up of the displacement device.
- a downstream edge of at least one propulsion chamber of the device is submerged, and is preferably located at the rear of the watercraft when the latter has a preferential direction of movement, promoting optimal propulsion of the latter. this.
- At least one of the edges among the upstream edge and the downstream edge of a propulsion chamber of the device 300 is connected to the liquid used for propulsion by a hydraulic circuit.
- the shell 2100 has at least one opening arranged to accommodate a hydraulic circuit.
- this opening is located below the waterline of the vehicle 2000, submerged in the liquid.
- this opening can be located at the level of the hull of the vehicle 2000, below, on the sides, at the front as for example for the bow thrusters, at the rear, between two portions of its hull, or at an angle to its shell, so as to avoid any problem of starting the device 300.
- said opening can be located at an inlet section or an outlet section of a propulsion chamber of the device 300, a propulsion chamber in which is housed a membrane M1 being located between both, and at least one actuator of the device 300 being connected to this membrane by means of a sealed connection.
- the aforementioned hydraulic circuit can be arranged to promote a laminar flow of the liquid in the displacement device.
- the hydraulic circuit can be curved or bent, which saves space and simplifies installation of the displacement device in the watercraft.
- View 15B represents a perspective view of the displacement device 300.
- the displacement device 300 comprises a propulsion chamber 350 in which is housed at least one membrane M1, said membrane being connected to two actuators A1 and A2.
- Said propulsion chamber 350 is of parallelepipedal geometry and formed by two vertical rigid walls 301 and 302 as well as two horizontal rigid walls 310 and 320.
- the propulsion chamber 350 forms a sealed enclosure in the watercraft 2000.
- at least one rigid wall of this sealed enclosure acts as a flange for the propulsion chamber 350.
- At least the horizontal wall 310 acts as the upper flange of the propulsion chamber 350 while the horizontal wall 320 is a lower flange formed by a part fixed to the hull of the vehicle. Ideally, this part is chosen and arranged so as not to alter the tightness of the whole.
- the propulsion chamber 350 is arranged so that the membrane M1 housed therein has only one flange facing one of its sides, which can be the shell itself.
- the membrane M1 and / or the propulsion chamber 350 may not be rectangular (or parallelepiped), but conform to the shape of the shell, which makes it possible to limit any modification to be made to the vehicle. nautical when installing the displacement device 300.
- the actuator A1 or A2 can be arranged to move the membrane M1 via a connecting axis A10 or A20, the latter passing through at least one wall, for example the wall 310.
- At least one connecting pin may be provided with a seal, this seal may be an O-ring or a bellows, for example.
- the propulsion chamber 350 may be a sealed chamber, the latter may be traversed by at least part of a hydraulic circuit containing the membrane M1. This configuration makes it possible, for example, to cool the actuator or some of its elements using the liquid present in the chamber, such as its power electronics in the case of an electric motor.
- the displacement device 300 further comprises at least one bucket, located outside at least one propulsion chamber and close to its downstream edge, and preferably outside. from the shell 2100 of the vehicle 2000, or outside the shell 1100 of the vehicle 1000.
- This cup is preferably a part arranged to discharge the liquid leaving the downstream edge towards the upstream edge of the propulsion chamber and via the outside thereof.
- the thrust generated causes fluid to move towards the front of the vehicle and said vehicle is propelled in the same direction as the fluid's movement in the propulsion chamber.
- This can be implemented by actuating at least one membrane located near the downstream edge of a propulsion chamber.
- propulsion chamber and / or the bucket described above can be pivoted or rotated in order to modify the direction of the thrust generated by the displacement device.
- a propulsion chamber or a membrane of the displacement device is arranged to be able to rotate with respect to an axis orthogonal to the direction of flow or of propulsion of the liquid in the chamber. This rotation can be performed inside the hull.
- the displacement device further comprises at least one noise reduction means or a mechanical damping means.
- the propulsion chamber or chambers that the displacement device comprises can be fixed directly to the watercraft by means of anti-vibration feet.
- Anti-vibration feet not only improve the sealing of the engine, for example when they have the shape of a flange seal.
- Views 16A, 16B and 16C of FIG. 16 illustrate a displacement device 196 according to another embodiment.
- the views 16A, 16B and 16C respectively represent a perspective view, a perspective sectional view and a schematic sectional view of the device 196.
- the device is included in a cowling, said cowling having, for example, an asymmetric NACA profile.
- the inflow F1 of liquid enters the device 196 through the upstream edge 51a and the outgoing flow F2 is extracted from it through the downstream edge 51b.
- the device 196 comprises a propulsion chamber, a membrane M1 housed in this chamber, the membrane being corrugated by an actuator A1.
- the actuator is advantageously located directly next to the membrane, either in the water, upstream or downstream thereof.
- said propulsion chamber has a tubular geometry, and the membrane M1 is of discoidal shape. [0322] This configuration makes it possible to reduce the pressure near the upstream edge 51 a of the watercraft, and to increase it near the downstream edge 51 b.
- FIG. 16 illustrates a displacement device 197 according to yet another embodiment.
- the views 17A, 17B and 17C respectively represent a perspective view, a perspective sectional view and a schematic sectional view of the device 197.
- the device 197 comprises a propulsion chamber, a membrane M1 housed in this chamber, the membrane being corrugated by an actuator A1.
- the membrane M1 is cylindrical.
- the M1 membrane surrounds an ovoid shaped separator.
- the propulsion chamber is cylindrical.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1909105A FR3099748B1 (fr) | 2019-08-09 | 2019-08-09 | Dispositif de déplacement d’un véhicule nautique |
PCT/FR2020/051438 WO2021028635A1 (fr) | 2019-08-09 | 2020-08-05 | Dispositif de déplacement d'un véhicule nautique |
Publications (1)
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EP4010243A1 true EP4010243A1 (fr) | 2022-06-15 |
Family
ID=68987885
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EP20757649.7A Pending EP4010243A1 (fr) | 2019-08-09 | 2020-08-05 | Dispositif de déplacement d'un véhicule nautique |
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US (1) | US20220315187A1 (fr) |
EP (1) | EP4010243A1 (fr) |
JP (1) | JP2022543880A (fr) |
KR (1) | KR20220042227A (fr) |
CN (1) | CN114450221A (fr) |
AU (1) | AU2020329624A1 (fr) |
CA (1) | CA3149316A1 (fr) |
FR (1) | FR3099748B1 (fr) |
WO (1) | WO2021028635A1 (fr) |
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FR3137658A1 (fr) * | 2022-07-05 | 2024-01-12 | Finx | Dispositif générateur de flux fluidique à membrane multi-directionnel |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE836006C (de) * | 1950-04-04 | 1952-04-07 | Dr Rudolf Blunck | Antriebsvorrichtung, insbesondere fuer Wasser- und Luftfahrzeuge |
GB751591A (en) * | 1952-02-19 | 1956-06-27 | Vibrane Corp | Improvements in or relating to devices for propelling flowable substances |
FR2379713A1 (fr) * | 1977-02-07 | 1978-09-01 | Eca | Procede et dispositif de production d'ondulations transversales a propagation longitudinale sur paroi souple, baignee par au moins un fluide |
JPH0932719A (ja) * | 1995-07-24 | 1997-02-04 | Furukawa Electric Co Ltd:The | 進行波発生装置および進行波発生方法 |
NO317623B1 (no) * | 2001-09-25 | 2004-11-22 | Inocean As | System for utnyttelse av sinusformet bevegelsesmonster |
US6835108B1 (en) * | 2004-01-12 | 2004-12-28 | The United States Of America As Represented By The Secretary Of The Navy | Oscillating appendage for fin propulsion |
FR2893991B1 (fr) * | 2005-11-30 | 2013-10-11 | Jean Baptiste Drevet | Circulateur a membrane |
DE102009012548A1 (de) * | 2009-03-10 | 2010-09-16 | Lieke, Michael, Dr. | Offene und geschlossene aktive und passive Propulsions- und Transportvorrichtungen |
US8651903B1 (en) * | 2011-09-12 | 2014-02-18 | Sudhir Pandit | Hydro-propulsion apparatus |
FR3073578B1 (fr) * | 2017-11-10 | 2019-12-13 | Corwave | Circulateur de fluide a membrane ondulante |
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2019
- 2019-08-09 FR FR1909105A patent/FR3099748B1/fr active Active
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2020
- 2020-08-05 WO PCT/FR2020/051438 patent/WO2021028635A1/fr unknown
- 2020-08-05 KR KR1020227007818A patent/KR20220042227A/ko unknown
- 2020-08-05 US US17/634,142 patent/US20220315187A1/en active Pending
- 2020-08-05 CN CN202080068882.9A patent/CN114450221A/zh active Pending
- 2020-08-05 JP JP2022508458A patent/JP2022543880A/ja active Pending
- 2020-08-05 EP EP20757649.7A patent/EP4010243A1/fr active Pending
- 2020-08-05 AU AU2020329624A patent/AU2020329624A1/en active Pending
- 2020-08-05 CA CA3149316A patent/CA3149316A1/fr active Pending
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CN114450221A (zh) | 2022-05-06 |
JP2022543880A (ja) | 2022-10-14 |
WO2021028635A1 (fr) | 2021-02-18 |
KR20220042227A (ko) | 2022-04-04 |
CA3149316A1 (fr) | 2021-02-18 |
AU2020329624A1 (en) | 2022-03-03 |
FR3099748A1 (fr) | 2021-02-12 |
US20220315187A1 (en) | 2022-10-06 |
FR3099748B1 (fr) | 2023-07-28 |
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