EP3606815A1

EP3606815A1 - Underwater propulsion system

Info

Publication number: EP3606815A1
Application number: EP18714552.9A
Authority: EP
Inventors: Frédéric Castellanet
Original assignee: Visit Seabed France
Current assignee: Visit Seabed France
Priority date: 2017-04-06
Filing date: 2018-04-06
Publication date: 2020-02-12
Also published as: WO2018185329A1; FR3064977A1; FR3064977B1

Abstract

According to one aspect, the present invention relates to a propulsion system (1000) that is able to move at least one user (2000) around in an underwater environment and is configured to be entirely submerged at least during a phase of propelling the user (2000) in an underwater environment, said propulsion system (1000) comprising at least: • an outer wall; • a drive device (1310); • a propulsion device (1300); the propulsion system (1000) being characterized in that it also comprises: • a breathing supply device (1600); • a buoyancy device.

Description

Underwater propulsion system

TECHNICAL FIELD OF THE INVENTION

The present invention relates to the field of propulsion vehicles for divers and swimmers, in particular vehicles able to evolve in an underwater environment and preferably vehicles configured to evolve below the surface of the water and preferably at depths greater than 2 meters.

STATE OF THE ART

Scuba diving has long been an activity practiced by humans. Exploration of the seabed and its fauna for example is a popular activity for many users.

Nevertheless, diving equipment is generally numerous, heavy and not very ergonomic. It is then appropriate for each user to transport as much as possible his material in terrestrial environment.

For example, in order to get to a dive site, users have to carry with them their equipment, which, in addition to being heavy, is very expensive. For example, when the user has to take public transport such as the train or the plane, the transport of his diving equipment is a real problem.

Things get more complicated when the user wants to use a submarine propulsion vehicle. These vehicles are generally designed around an engine and a propeller and allow the diver, in a more or less easy way, to move in an underwater environment.

The primary interest of this type of vehicle is to reduce the effort that divers must provide with their legs to move in the underwater environment. But this is not counting on the efforts that users of this type of vehicle must make to transport it to dive sites and to handle them when they leave the water.

The transport of diving equipment is a real problem faced by practitioners of this activity.

This hardware transport problem is solved in part at least by the present invention.

SUMMARY OF THE INVENTION

The present invention relates to a propulsion system capable of evolving at least one user in an underwater environment and configured to be fully immersed at least in a propulsion phase of the user in an underwater environment, said propulsion system comprising at least less:

An outer wall, preferably comprising a shell, forming an envelope for the propulsion system;

An underwater piloting device for the propulsion system by the user, the piloting device being arranged in part at least on the outer wall so that the user controls the propulsion system while being located at outside the outer wall and preferably fully immersed;

• a device for propelling the propulsion system in an underwater environment;

The propulsion system being characterized in that it further comprises at least:

A respiratory supply device capable of supplying at least said user with breathing fluid, preferably at least when said user is piloting said propulsion system. According to one embodiment, the control system is accessible, preferably fully accessible, from outside the outer wall. According to one embodiment, the outer wall has an outer portion configured to accommodate at least a portion of the body of the user, preferably his arms and / or another part of his bust. Optionally, the invention may have at least any of the following optional features.

According to one embodiment, the outer wall has a reception range configured so that when the user controls the propulsion system, its arms and / or its bust are partly at least in contact with said range of Home.

Particularly advantageously, this reception range comprises at least one support surface shaped to partially wrap at least a portion of the arms and / or the bust of the user so that this part of the user operates. as a lever arm and that this surface corresponds to a pivot point. This then makes it possible to modify the inclination of the propulsion system by applying a force at the level of this bearing surface by the user.

The present invention allows a transport of the dive equipment of the user simple and reliable. The user has in his propulsion system a respiratory feeding device. Therefore the user must not carry on his back bottles of compressed gas for example.

The present invention allows the user greater freedom of movement and increases its mobility. Furthermore, it increases the duration of the dives by providing, in the propulsion system, a respiratory feeding device thus freeing the user from having to carry it on his person and which can also allow a larger volume of respiratory fluid available to the patient. 'user.

The present invention thus makes it possible to have a self-supporting breathing supply device whose user has to bear neither the weight nor the bulk in an underwater environment.

The present invention thus provides a solution to the problem of increasing the duration of dives without significantly penalizing the size and mobility of the user.

The present invention allows easy access to dive sites via facilitated transport of respiratory fluid supplies.

In addition, the present invention makes it possible to evolve in an underwater environment without carrying heavy equipment in the user's body, thereby reducing on the one hand the difficulties of movement of the user and on the other hand the risk of accidents related for example to the traditional dorsal positioning of the equipment. Indeed, this traditional position prevents the user from acting quickly and efficiently on his equipment in case of failure. The present invention also relates to a thruster housed in a thruster body, said thruster body comprising at least:

• a helix ;

A nozzle comprising at least one water inlet and at least one water outlet;

An electric motor being configured to rotate said propeller housed in said nozzle;

A power supply device configured to electrically supply at least said electric motor;

An electronic device configured to control at least said electric motor.

Preferably, the power supply device comprises at least one electrical energy storage module and at least one electric energy recharge module of said electrical energy storage module.

Advantageously, the electric energy charging module is a charging module in electrical energy by induction.

Preferably, the electronic device comprises at least one module for transmitting at least one signal and at least one module for receiving at least one signal, the transmission module being configured to transmit at least one signal to a device driving a propulsion system and the receiving module being configured to receive at least one signal from said driving device for controlling at least said electric motor.

Advantageously, the transmission module comprises at least one light source configured to cooperate with at least one first optical fiber so as to transmit at least one signal to said control device, and the reception module comprises at least one optical sensor configured to cooperating with at least a second optical fiber so as to receive at least one signal from said driving device for controlling at least said electric motor.

Preferably, the light source is configured to emit at least one light signal, the first optical fiber being configured to transport said light signal to said control device, the second optical fiber being configured to transport said light signal from said steering device to the optical sensor, the control device being configured to allow a user to let or not circulate said light signal from the light source to the optical sensor to at least control said electric motor. BRIEF DESCRIPTION OF THE FIGURES

The objects, objects, as well as the features and advantages of the invention will become more apparent from the detailed description of an embodiment thereof which is illustrated by the following accompanying drawings in which:

- Figure 1 illustrates a user carrying a terrestrial propulsion system according to one embodiment of the present invention.

FIG. 2 illustrates a user in an underwater environment being towed by a propulsion system according to one embodiment of the present invention.

FIGS. 3a and 3b respectively show a view from above and a side view of a propulsion system according to a first embodiment of the present invention.

FIG. 3c illustrates a front view in section of a propulsion system according to one embodiment of the present invention.

FIG. 3d illustrates a retractable gripping element according to an embodiment of the present invention.

FIG. 4 illustrates a propulsion system according to an embodiment in a stationary position at a predetermined depth while the user is swimming in the vicinity.

- Figures 5a, 5b and 5c respectively illustrate a perspective view, a top view and a profile of a propulsion system according to a second embodiment of the present invention.

FIGS. 6a, 6b and 6c respectively illustrate a perspective view, a top view and a profile view of a propulsion system according to a third embodiment of the present invention.

FIGS. 7a, 7b and 7c respectively illustrate a perspective view, a view from above and a profile of a propulsion system according to a fourth embodiment of the present invention.

FIGS. 8a, 8b and 8c respectively illustrate perspective views and a sectional view of a thruster according to one embodiment of the present invention.

The drawings are given by way of examples and are not limiting of the invention. They constitute schematic representations of principle intended to facilitate the understanding of the invention and are not necessarily at the scale of practical applications.

DETAILED DESCRIPTION OF THE INVENTION

In the present description, the term "lever effect", "lever arm" or their synonyms means the application of a force at a first end of a lever in contact with at least one pivot point and wherein a second end of the lever receives this force by being increased, the pivot point extends between the first end and the second end. This second end corresponds to the point where it is desired to apply a load or a significant effort. This second end can be called a point of charge. Advantageously, the distance between the point of application of the force (first end) and the pivot point is greater than the distance separating the point of load (second end) and the pivot point. This allows a reduction of the force applied to the point of load relative to the force applied to the first end.

The propulsion system according to the present invention is preferably configured to evolve at least one user in an underwater environment under the surface of the water and preferably to a depth greater than or equal to 3 meters, preferably greater than or equal to 5 m, preferably greater than or equal to 10 m and advantageously greater than or equal to 20 m.

Before going into the details of preferred embodiments, particularly with reference to the figures, various options are given below, which may preferably, but not exclusively, be presented in the invention, these options being able to be implemented, either separately or following any combination between them:

The propulsion system, according to the present invention, preferably comprises a buoyancy device configured to adjust the buoyancy of the propulsion system so as to stabilize, preferably automatically, at depth the propulsion system relative to its depth.

This allows a control of the depth to which the propulsion system evolves and therefore the user, as well as a control of its descent and its ascent.

According to a preferred embodiment, the propulsion system comprises at least:

A first face facing the free surface of the water when the user controls the propulsion system, the propulsion system being arranged flat, that is to say that it extends essentially in a plane parallel to the surface of the water. ;

• a second face facing the seabed when the user controls the propulsion system and the propulsion system is flat, that is to say parallel to the surface of the water;

The first face and the second face being intended to be in contact with at least a part of the body of the user when the user controls the propulsion system;

Advantageously, the propulsion system is configured in such a way that the first or second faces respectively serve as a pivot point or a point of load on a lever formed at least partially by said part of the body of the user in order to modify the inclination of the propulsion system when the user controls the propulsion system.

This allows the user to easily change the tilt of the propulsion system during the propulsion phase, limiting the effort that the user must apply. Indeed, by simple movement of the user, the inclination of the propulsion system can be changed.

For example, if the user wishes to move substantially upward, he may use a portion of his body as a lever arm and the first side as a pivot point to apply leverage on the second face so tilting the front of the propulsion system up and / or back of the propulsion system down.

In a substantially similar manner, if the user wishes to move substantially downward, he may use a portion of his body as a lever arm and the second face as a pivot point for applying a lever effect force on the first side. so as to tilt the front of the propulsion system downward and / or rearward of the propulsion system upwards.

According to this embodiment, when the user controls the propulsion system, the first face and the second face are shaped so as to each have a non-zero projection on a horizontal plane. Indeed, the first and the second face do not need to be parallel to a horizontal plane as it has a non-zero projected surface in said horizontal plane.

Advantageously, the first and second faces may be point, two-dimensional or even linear.

Advantageously, when the user drives the propulsion system, the first face is in contact with a first part of the hand and / or forearm of the user, and the second face is in contact with a second part of the hand and / or forearm of the user, preferably different from the first part, said first part facing the seabed and said second part facing the free surface of the water .

According to one embodiment the propulsion system is configured so that the second face is in contact with a portion of the forearm of the user, the forearm portion being turned towards the free surface of the water when the user drives the evolution system. Thus, this second face at least partially covers the user forearm. It constitutes with the forearm of the user preferably a surface contact having an area of at least 1 cm ² , preferably at least 10 cm ² , preferably at least 30 cm ² . Preferably this face forms a contact with the forearm over the entire width of the latter, the width of the forearm extends measured in a direction perpendicular to its main extension direction.

Preferably, when the user controls the propulsion system, the distance separating the first face of the second face along the axis of extension of the forearm of the user is at least greater than or equal to 10 cm, preferably greater than or equal to 15 cm and advantageously greater than or equal to 20 cm. Advantageously, the propulsion system comprises for each forearm of the user a first and a second face.

According to one embodiment, the second face may be formed in part by at least one element disposed at the back of the user when it controls the propulsion system.

For example, this element may be a belt, a rigid element or a part of the hull of the propulsion system.

According to one embodiment, the first face comprises a main face and an additional face. The main face may correspond to a pivot point when the user wishes to tilt up the propulsion system, this main face can therefore for example be in contact with at least one elbow of the user. The additional face may correspond to a point of load when the user wishes to tilt the propulsion system downwards, this additional face may therefore for example be in contact with at least one wrist of the user

According to one embodiment, the first face can be carried by the outer wall of the propulsion system, by a reception range of the propulsion system, by a handle of the propulsion system or by a joystick, preferably fixed, the propulsion system.

According to one embodiment, the second face can be carried by the outer wall of the propulsion system, by a handle of the propulsion system or by a lever, preferably fixed, the propulsion system, by a belt or a back element intended to be integral or at least in contact with a portion of the torso of the user.

It should be noted that the first and second faces may belong to the same surrounding surface in part or in whole part of the body of the user, preferably part of the arms and / or the trunk of the user when the latter pilot the propulsion system.

Optionally, the outer wall of the propulsion system comprises at least one bearing surface configured to at least partly envelop an upper part of the body of the user, preferably a part of his arms and / or his torso, so as to cooperate with said portion to form a lever arm configured to allow a modification of the inclination of said propulsion system.

Preferably but not limited to, the bearing surface is configured to accommodate a portion of the forearm and / or torso of the user and to wrap a rear portion.

Preferably, the bearing surface is configured to be in physical contact with at least a portion of the underside and the top of the user's forearms and / or torso. Preferably, the bearing surface is shaped to at least partially enclose the forearms of the user when he controls said propulsion system, said bearing surface being shaped to cooperate with at least a portion of the front arm of the user so as to form said lever arm.

According to one embodiment, the propulsion system comprises at least one power supply, also called power supply device, preferably rechargeable and removable in relation to the propulsion system. This makes it easy to change a discharged power supply. In addition, it may be advantageous for the propulsion system to comprise at least one permanently mounted inductive electrical energy reception module and the power supply device to comprise an inductive electric energy charging module and a power supply module. transmission of electrical energy by induction in the first place that the charging is done without the presence of metal contacts that can corrode in the marine environment and secondly that the electrical power supply of the propulsion system from one or more devices Power supply is also without the presence of metal contact that may be exposed to the marine environment. This power supply can therefore be achieved by inductive transmission of electrical energy from the electrical power transmission module to the electrical energy receiving module. According to one embodiment, the propulsion device comprises at least one propellant, said propeller being removably mounted relative to the outer wall of the propulsion system.

This makes it easy to replace a defective or unloaded thruster.

According to one embodiment, the propulsion device comprises a first and a second thruster arranged on either side of the axis of movement of the propulsion system. This balances the thrust applied to the propulsion system.

Preferably, the propulsion device comprises at least one propellant, said propellant comprising at least:

• a helix ;

A nozzle comprising at least one water inlet and at least one water outlet;

An electronic device configured to control at least said electric motor.

This allows the thruster to be autonomous and interchangeable. According to one embodiment, the propulsion device comprises a thruster body configured to house the thruster, preferably to fully house the thruster.

Advantageously, the propulsion device comprises a thruster body configured to house the thruster, preferably to fully house the thruster and wherein the body and configured to be releasably secured to the outer wall of the propulsion system.

Thus, the thruster can be completely removed from the envelope by separating the body of the latter. It is thus very easy to replace one propeller with another. Advantageously, the power supply device comprises at least one electrical energy storage module and at least one electric energy recharge module of said electrical energy storage module.

This allows energy autonomy for each thruster.

This makes it possible to increase the reliability and durability of the thrusters by eliminating electrical contacts that can corrode in the marine environment.

Advantageously, the first thruster and the second thruster are configured to be interchangeable relative to each other.

This makes it possible to replace one thruster with another quickly and easily.

Advantageously, the propulsion system comprises at least one protective cover, preferably removable, configured to allow the removable attachment of the thruster to the outer wall and preferably to the propulsion system.

Advantageously, the propulsion system comprises at least one protective cover, preferably removable, configured to allow the removable attachment of the first and second propellant to the outer wall and preferably to the propulsion system.

Preferably, the at least one water inlet comprises at least one flap disposed at an angle less than or equal to 45 ° relative to the direction of extension of the motor shaft.

This allows the propulsion system to move in reverse.

Advantageously, the first and second thrusters are configured to operate independently of one another in a first mode and in a second mode, the first mode corresponding to a first direction of rotation of each helix and the second corresponding mode of operation. a second direction of rotation of each helix different from the first direction of rotation.

This allows the propulsion system to have a forward and a reverse.

According to one embodiment, the propulsion system comprises at least one emergency stop actuator configured to stop the propulsion system by closing each water inlet of the first and second propellant and / or each water outlet of the first and second propellant.

This makes it possible to quickly and reliably stop the propulsion of the propulsion system.

According to one embodiment, the propulsion system comprises at least one wire element detachable and integral with the user when the latter is in the propulsion phase, this wire element being configured to control the stopping of the propulsion of the propulsion system. as soon as it is detached from the propulsion system.

This makes it possible to quickly and reliably stop the propulsion of the propulsion system as soon as the user detaches from it.

According to one embodiment, the power supply device further comprises at least one inductive electric power transmission module and wherein each thruster comprises at least one inductive electrical energy receiving module, the transmission module. of electric induction energy and the induction electric energy receiving module being configured to cooperate together so that the power supply device electrically supplies at least the electric motor by transmitting electrical energy by induction from the module for transmitting electrical energy by induction to the electrical energy reception module by induction.

According to one embodiment, the power supply device is removable relative to the propulsion system.

Advantageously, the electronic device comprises at least one module for transmitting at least one signal and at least one module for receiving at least one signal, the transmission module being configured to transmit at least one signal to the device control and the receiving module being configured to receive at least one signal from the control device to at least control the electric motor.

This allows independent control or not of each thruster.

Advantageously, the transmission module comprises at least one light source configured to cooperate with at least a first optical fiber so as to transmit at least one light signal to the control device, and wherein the reception module comprises at least one sensor optical configured to cooperate with at least a second optical fiber so as to receive at least one signal from the driving device to at least control the electric motor. The use of an optical fiber communication system simplifies the design of the propulsion system, increases its reliability as well as its durability.

Advantageously, the light source is configured to emit at least one light signal, the first optical fiber being configured to transport said light signal to the control device, the second optical fiber being configured to transport said light signal from the control device to the light source. sensor optical, the driving device being configured to allow the user to let or not circulate said light signal from the light source to the optical sensor to at least control the electric motor.

This makes it possible to transmit instructions to each thruster simply by interrupting or not a luminous flux.

Preferably, the thruster is configured to operate in a first mode and in a second mode, the first mode corresponding to a first direction of rotation of the helix and the second mode of operation corresponding to a second direction of rotation of the helix. different from the first direction of rotation.

According to one embodiment, the propulsion system comprises at least one emergency stop actuator configured to stop the propulsion system by closing the water inlet of the thruster and / or the water outlet of the thruster.

According to one embodiment, the propulsion device comprises a first and a second propellant, the first and the second propellant being removably mounted relative to the outer wall.

Advantageously, the first and second thrusters are configured to be interchangeable relative to one another.

Preferably, the first and second thrusters are configured to be driven by the user independently of one another.

According to one embodiment, the electronic device comprises at least one transmission module and at least one reception module, the transmission module comprising at least one light source configured to cooperate with at least a first optical fiber so as to emit at least one light signal to the control device, and the reception module comprising at least one optical sensor configured to cooperate with at least one second optical fiber so as to receive at least one light signal from the control device to at least control the electric motor.

According to one embodiment, the propulsion system has a longitudinal dimension of less than 1.8m, preferably less than 1 .mu.m and advantageously less than 1.00m.

According to one embodiment, the propulsion system has a lateral dimension of less than 1.2 m, preferably less than 1.0 m and advantageously less than 0.8 m.

According to another embodiment, the propulsion system has a lateral dimension of less than 1.5 m, preferably less than 1.3 m and advantageously less than 1 m.

According to one embodiment, the reception range has a length less than 1.60m, preferably less than 1.20m and advantageously less than 1m. According to one embodiment, the arrangement of the control device and the display device allows to leave a clear field of view under the user's head to view the seabed while driving the propulsion system. For this purpose, the propulsion system preferably comprises an opening intended to be located at right, that is to say, vertically, the user's head when the latter piloting the propulsion system. The outline of the propulsion system that defines the opening may be closed or open.

According to one embodiment, the control device is arranged to leave a clear field of view under the user's head to view the seabed while driving the propulsion system.

According to one embodiment, the display device is arranged to leave a clear field of view under the user's head to view the seabed while driving the propulsion system.

According to one embodiment, the propulsion system comprises an optical element, preferably magnifying, configured to allow the user to observe the seabed located below him while driving the propulsion system. According to one embodiment, the optical element can be taken from at least: a magnifying glass, a camera.

Advantageously, the propulsion system comprises at least one compartment having a volume configured to comprise at least the respiratory supply device, the respiratory supply device being removable.

This makes it possible to arrange the respiratory power supply device inside the propulsion system.

Advantageously, the propulsion system comprises at least one compartment having a volume configured to comprise at least the respiratory feeding device, the respiratory supply device being permanently fixed and comprising at least one rechargeable respiratory fluid reservoir.

Advantageously, the respiratory supply device comprises at least one bottle of breathing gas, and is located on the outer wall or in an open compartment.

Advantageously, the respiratory supply device comprises at least one bottle of breathing gas, and is located inside the casing formed by the outer wall.

Advantageously, the respiratory feeding device comprises at least one breathing gas bottle, and is housed in an accessible compartment from the outside, preferably after opening a flap.

Advantageously, the respiratory feeding device comprises at least one removable reserve of respiratory fluid.

This makes it possible to replace the reserve of respiratory fluid, for example in the case of a bottle of compressed air, this makes it possible to replace them with new ones. Advantageously, the respiratory feeding device comprises at least one rechargeable reserve of respiratory fluid.

This makes it possible to recharge the reserve of respiratory fluid, for example in the case of a bottle of compressed air, this makes it possible to fill them while leaving them inside the propulsion system.

Advantageously, the respiratory supply device comprises at least one bottle of a compressed gas.

Advantageously, the respiratory supply device comprises at least one respiratory fluid recycling device configured to recycle the respiratory fluid rejected by the user so as to be reused by the user.

According to one embodiment, the respiratory feeding device comprises at least one device for recycling the air breathed by the user.

This allows the user to breathe fresh air and to reject stale air, the stale air is then recycled to fresh air.

This significantly increases the duration of the dives while reducing the size of the breathing device.

Moreover, this prevents the relaxation of bubbles in the water which increases the stealth of the user relative to the underwater environment and in particular to the underwater fauna.

According to one embodiment, the respiratory supply device comprises at least one air purifier configured to remove the carbon dioxide rejected by the user during his breathing.

Advantageously, the respiratory supply device comprises at least one oxygen bottle and at least one nitrogen bottle configured to replace the oxygen and nitrogen that may be lost during the dive.

Advantageously, the propulsion system comprises at least one expander connected to the respiratory supply device and disposed outside the casing formed by the outer wall.

This allows the user to breathe underwater without having to be encumbered by a breathing system that would otherwise be worn on him.

Advantageously, the pressure reducer is a second-stage type regulator configured to lower the pressure of an inlet respiratory fluid to a pressure adapted to the breathing of the user output.

This allows to have a second stage type of expander outside the propulsion system.

Advantageously, the propulsion system comprises at least a first stage type expander connected to the respiratory supply device and disposed within the casing formed by the outer wall.

This allows to have a first stage type of expander within the propulsion system itself. Advantageously, the first stage type expander is configured to lower the pressure of an inlet respiratory fluid from the respiratory supply device.

Advantageously, the propulsion system comprises at least one expander, preferably a plurality of expansion valves disposed outside the casing formed by the outer wall.

Advantageously, the propulsion system comprises at least a plurality of expander connected to the respiratory supply device.

This allows a plurality of users to use the respiratory supply device at the same time so that multiple breaths can be breathed from one and the same non-user-supplied respiratory supply device.

Advantageously, the expander, of first stage type, is located inside the casing formed by the outer wall.

Advantageously, the expander, of the first stage type, is located inside the outer wall.

Advantageously, the expander, of the first stage type, is located on the outer wall. Advantageously, the expander, of the second stage type, is located inside the casing formed by the outer wall.

Advantageously, the regulator, of the second stage type, is located on the outer wall.

Advantageously, the propulsion system comprises at least one conduit for supplying the respiratory fluid from the respiratory supply device to the user's mouth, said duct comprising at least a first end and at least a second end.

Advantageously, the first end of the duct comprises the second stage type expander and the second end of the duct comprises the first stage type expander.

Advantageously, the propulsion system comprises at least one gripping device at least partially arranged, preferably entirely, on the outer wall so as to allow the user to lift manually, and preferably entirely, the propulsion system.

This makes it easy to hold the propulsion system in a marine, submarine or terrestrial environment.

The gripper is configured to allow the user to enter the propulsion system.

This allows the user to grip the propulsion system so as to move or propel it.

This then facilitates the movement of the propulsion system by the user.

Advantageously, the gripping device comprises at least one handle, preferably fixed and / or non-retractable. According to one embodiment, the propulsion system is configured to be able to be, preferably entirely, lifted manually.

Advantageously, the propulsion system comprises at least one gripping device disposed at least in part, preferably entirely, on the outer wall and at least one wheel, preferably at least two wheels, the gripping device and the wheel, preferably the two wheels, are configured to allow the displacement of the propulsion system in the terrestrial environment by traction of the propulsion system by the user.

This allows the user to tow the propulsion system in the terrestrial environment so that it can be transported easily.

Advantageously, the gripping element is located at a first longitudinal end of the propulsion system and the wheel, preferably, the wheels are located at a second longitudinal end opposite to that carrying the gripping element.

Advantageously, in a terrestrial environment, when the longitudinal direction of the propulsion system is inclined in the vertical direction by an angle of between 5 ° and 80 °, the only contact between the propulsion system and the ground is at the level of the wheel, preferably both wheels.

Advantageously, the propulsion system is configured to have a parking position in a terrestrial environment in which the longitudinal direction of the propulsion system is substantially vertical.

Advantageously, the propulsion system is configured to have a terrestrial parking position in which the propulsion system rests on the wheel, preferably on both wheels, and on at least one support zone.

Advantageously, the propulsion system comprises at least one retractable gripping element capable of allowing the displacement of the propulsion system from a marine environment, preferably underwater, to an air medium.

This allows the user to remount the propulsion system aboard a boat for example by pulling it on board via the retractable gripping element.

The retractable nature of the gripping member reduces the bulk of the present invention and increases its ergonomics.

The present invention also allows the propulsion system in the water with the fins for example and the diving mask when climbing on board a boat for example the user at the end of the dive. In a clever way, the user then holds in his hand only a retractable gripping element intended to allow him to hoist the propulsion system and the rest of his equipment carried by it on board the boat.

The present invention thus simplifies the end of diving by limiting the efforts that the user must provide to get back on board the boat for example. These difficulties grow especially as the sea is rough. The present invention then reduces these difficulties by proposing a simple and reliable solution to the user to go back on board the boat by limiting the weight he carries on his person.

Finally, it also allows an easy launching of the propulsion system from the boat at the beginning of the dive.

Advantageously, the propulsion system comprises at least one retractable gripping element comprising at least one handle secured to at least one rope being secured to the propulsion system and at least one return element, and when the retractable gripping element is in position. retracted position, the rope is, preferably totally, located inside the envelope formed by the outer wall, and when the retractable gripping element is in the deployed position, the rope is partly at least located at the outer of the shell formed by the outer wall, and the biasing member is configured to automatically move the retractable gripping member from said extended position to said retracted position.

This allows the displacement of the propulsion system from a marine environment, preferably underwater, to an air medium, preferably terrestrial.

This allows the user to remount the propulsion system aboard a boat for example by pulling the rope so as to move the propulsion system from a marine environment to a terrestrial environment, for example aboard a boat .

Advantageously, the propulsion system comprises at least one removable protective cover configured to cover the propulsion system.

This makes it possible to protect the propulsion system from damage during its transport by reducing, preferably totally, the number of projecting parts. Advantageously, the propulsion system comprises at least one compartment, preferably sealed, intended to accommodate at least a portion of the diving equipment of the user, the diving equipment being taken from at least: mask, snorkel, fins, combination of diving, camera, dive computer ....

This stores all the user's diving equipment in the propulsion system to facilitate the transport and movement of this equipment.

Advantageously, the propulsion system comprises at least one sealed compartment.

Advantageously, the propulsion system comprises at least one compartment comprising at least one closure flap.

Advantageously, the propulsion system comprises at least one compartment comprising at least one sealing flap.

Advantageously, the propulsion system comprises at least one compartment comprising at least one locking device taken from at least: a lock, a key lock, a code lock, a wireless recognition lock.

Advantageously, the compartment is accessible when the propulsion system is in the parking position in the terrestrial environment and in the rolling phase. Advantageously, the propulsion system comprises at least one electric motor disposed inside the envelope formed by the outer wall, and preferably configured to rotate at least one helix, preferably by magnetic coupling.

This allows the electric motor to be in a sealed environment away from water while the propeller is in the aquatic environment and its rotation is provided via a magnetic coupling.

Advantageously, the propulsion system comprises at least a first electric motor, at least a first helix and at least a first nozzle, said first electric motor being configured to rotate said first propeller housed in said first nozzle comprising at least a first inlet of water and at least a first outlet of water.

This makes it possible to propel the propulsion system in a marine environment, and preferably underwater, by drawing water through the inlet of the nozzle and discharging it via the exit of the nozzle once this water has been accelerated via the rotating propeller.

The positioning of the propeller inside the nozzle makes it possible on the one hand to increase its efficiency, but also on the one hand to reduce the sonic disturbances and to reduce the risks of accident relative to the user.

Finally, when the inlet and outlet water of the nozzle comprise grids, it allows to filter the elements in contact with the propeller so as to increase their life.

Advantageously, the propulsion system comprises at least one second electric motor, at least one second helix and at least one second nozzle, said second electric motor being configured to rotate said second propeller housed in said second nozzle comprising at least a second inlet of water and at least a second outlet of water.

Advantageously, the propulsion system comprises at least one emergency stop actuator configured to stop the propulsion system, preferably mechanically, by closing the first and second water inlet and / or the first and the second outlet of the propulsion system. water, preferably the propulsion system comprises at least one safety device whose first end is attached to the user for example by a strip and the second end is removably attached to the propulsion system, the actuator emergency stop being configured to activate at least when the second end is disengaged from the propulsion system under the effect of a distance from the user compared to the propulsion system.

This allows an immediate stop by the user of the submarine propulsion system in case of problems.

Advantageously, the emergency stop actuator is configured to close the first and second water inlet. This allows an immediate stop by the user of the propulsion system in case of a problem by stopping the water supply in the nozzles, stopping by the same propulsion of the propulsion system.

This stop mechanically implemented gives this emergency stop a very high reliability.

Advantageously, the emergency stop actuator is configured to close the first and second water outlets.

This allows a stop by the user of the propulsion system in case of a problem by stopping the water outlet of the nozzles, stopping by the same propulsion of the propulsion system.

Advantageously, the propulsion system comprises at least one additional propulsion system comprising at least one outlet of said breathing fluid, preferably under pressure, and directed outwardly of the outer wall and coming from the respiratory supply device.

This allows the user to increase his speed through a sudden and continuous acceleration.

This allows for example to follow a certain distance of marine animals for example a dolphin that can present a sudden and significant acceleration.

Advantageously, the propulsion system comprises at least one buoyancy device configured to adjust the buoyancy of the propulsion system, preferably via the filling and / or emptying of at least one ballast, so as to stabilize the propulsion system in depth. relative to its depth.

This allows precise control of the depth of the propulsion system, or even its maintenance at a constant depth.

Advantageously, the propulsion system comprises at least one device for securing the propulsion system to the user.

This allows the user to be attached via for example a leash to the propulsion system to ensure the safety for example of the user in the underwater environment. Advantageously, the control device is connected at least to the propulsion system via at least one optical fiber communication device.

This allows the control and control of the propulsion system through light rays to limit problems related to electricity in the marine environment.

Advantageously, the propulsion system comprises at least one power supply.

Advantageously, the propulsion system comprises at least one display device, preferably arranged in part at least on the outer wall. Advantageously, the display device comprises at least one digital or analog display screen carried by the external wall of parameters linked at least to the respiratory fluid stored in the respiratory supply device.

- Advantageously, the propulsion system comprises at least two wheels arranged at least 30cm from each other relative to their center of rotation.

This allows a better stability of the propulsion system when the user rolls it.

- Advantageously, the propulsion system comprises at least one rope comprising at least one node and being secured to the propulsion system and being configured to be rollable at a portion of the outer wall.

This allows towing the propulsion system out of the water.

The present invention finds as a preferred field of application the field of scuba diving, in particular scuba diving equipment.

The present invention provides its user 2000 with numerous advantages which will be presented and described hereinafter.

In particular, the present invention further allows its user 2000 to evolve in a marine environment 3000, and preferably underwater 3400, without having to carry a breathing device 1600.

According to the present invention, an underwater medium 3400 preferably corresponds to a depth greater than or equal to 3 m, preferably 5 m, preferably 10 m and advantageously 20 m.

In addition, and as will be described, the present invention has several elements capable of helping the user 2000 to carry his diving equipment to go for example to the dive site.

The present invention advantageously takes advantage of the synergy implemented by a multitude of technical features to allow easy handling of the present invention both on land and at sea.

Particularly advantageously, and as explained below, the present invention has at least one and preferably at least two propellers 1340 removable and advantageously interchangeable.

Each thruster 1340 comprises a power supply 1346, a charging system 1346b, a motor 1343 configured to operate in a marine environment 3400 and finally a control system 1347, preferably by optical fiber, configured to be connected to the propulsion system 1000 and its control device 1310.

Thus, particularly advantageously, the user 2000 can easily change a thruster 1340 either having no more electrical energy or having a technical problem, by another thruster 1340 ready for use. Advantageously, as each thruster 1340 advantageously comprises a power supply 1346, an indication of the level of charge of a thruster may be disposed on its surface for example by means of one or more light indicators 1347e.

According to an alternative embodiment, the thrusters can be integral with the propulsion system, and it is then their electrical power supply that can be removable, and preferably include an inductive coupling both to be recharged but also to transmit the energy electric propeller. This avoids the presence of electrical contacts that may have limited reliability and durability in the marine environment. The present invention relates in part to at least one submarine propulsion system 1000 configured to operate in underwater environment 3400 by towing a user 2000, preferably to a depth greater than or equal to 3m, preferably to 10m and advantageously to 20m , but also in the terrestrial area 4000 being towed by the user 2000.

This propulsion system 1000 has a plurality of technical characteristics configured to allow the user 2000 to tow in the terrestrial environment 4000 in the image of a suitcase.

We will now describe the present invention through several figures so as to illustrate it in various situations highlighting the synergy of these technical features, but also allowing the illustration and presentation of various embodiments of the present invention. , all compatible with each other.

FIG. 1 illustrates the present invention according to one embodiment in a scenario in which a user 2000 moves in terrestrial environment 4000 with the present invention and preferably with his diving equipment disposed inside thereof.

The diving equipment of a user 2000 is generally heavy and bulky. It may comprise, for example, the following elements: a respiratory supply device 1600, a reserve of respiratory fluid 161 1, a compressed air cylinder, a diving suit 2100, a diving mask 2300, a snorkel, a regulator 1630 , 2200 fins, a pressure gauge, weights, a knife, a camera, a camera, a rope, a 1800 buoyancy device, ...

The present invention allows for example to have in a first compartment 1610 a respiratory feeding device 1600 which may comprise for example one or more respiratory fluid reserves, such as compressed air cylinders and one or more pressure reducers.

According to one embodiment, the present invention may comprise a respiratory fluid recharging device configured to recharge the respiratory supply device 1600. It may be for example a valve system configured to allow the filling of the or breathing fluid reserves from outside the system of propulsion 1000 so as to allow the user 2000 to leave the reserve or reserves of respiratory fluid 161 1 in the propulsion system 1000.

According to another embodiment, the respiratory supply device 1600 may be partially or completely removable so as to allow for example the replacement of elements such as a reserve of respiratory fluid 161 1 for example.

In Figure 1, the user 2000 tows behind him a propulsion system 1000 according to one embodiment of the present invention. This propulsion system 1000 advantageously comprises the first compartment 1610 previously described which allows among other things to accommodate a respiratory supply device 1600, here in the form of a bottle of breathing gas.

According to an embodiment not illustrated, the propulsion system 1000 may comprise a removable cover for protecting it during its transport.

According to another embodiment, a cover can be used to protect the propulsion system 1000.

This propulsion system 1000 also comprises at least one wheel 1210, which may be in the form of a roller, and preferably at least two wheels 1210 so as to allow it to move in a terrestrial environment 4000 simple and energy-saving.

Preferably, according to the embodiment where the propulsion system 1000 comprises at least two wheels 1210, they have a distance from one another, ie a distance between their respective center of rotation, at least 30cm.

Advantageously, the use of a roller makes it possible to have a single rolling element having a surface sufficient to ensure a good stability of the propulsion system 1000 during its displacement in a terrestrial environment, that is to say in the air phase. rolling.

Preferably, according to the embodiment where the propulsion system 1000 comprises at least one roller, it has a spatial extension along its axis of rotation of at least 30cm.

According to one embodiment, the propulsion system 1000 may comprise at least one ski, for example Teflon, and preferably at least two skis, configured to enable it to move in a terrestrial environment 4000 simple and energy-saving for the user 2000 .

According to a preferred embodiment, the propulsion system 1000 may comprise at least one gripping device 1200. This gripping device 1200 is configured to allow the user 2000 to manipulate, lift, and preferably pull the system of 1000 propulsion in the terrestrial environment 4000. Like a travel suitcase, the propulsion system 1000 according to a preferred embodiment of the present invention can be towed by the user 2000. Advantageously, the propulsion system 1000 has a curb weight of between 1 kg and 15 kg, preferably between 1 kg and 10 kg and advantageously between 1 kg and 6 kg. Cleverly, the arrangement of the gripping device 1200 relative to the wheel or wheels 1210 of the propulsion system 1000 allows traction in the terrestrial environment 4000.

According to a preferred embodiment, the propulsion system 1000 may have a terrestrial parking position 4000 in which its longitudinal dimension is substantially vertical. A support zone may be provided for this purpose at the end of the propulsion system 1000 comprising the wheel or wheels 1210.

Advantageously, the propulsion system 1000 comprises at least a second compartment 1620 configured to accommodate for example at least a portion, and preferably all, of the diving equipment of the user 2000. This second compartment 1620 is then preferably configured to have a clean volume to include for example fins 2200, a diving suit 2100, a diving mask 2300, etc.

According to another embodiment, the fins 2200 can be fixed on the outer wall 1100 of the propulsion system 1000 via a fastening device. Indeed, some fins 2200 may have significant dimensions, it is then easier to fix them on the outer wall 1100 of the propulsion system 1000.

Similarly, the propulsion system 1000 may comprise other compartments for containing various elements such as a knife, rope, camera, etc.

Advantageously, a locking device may be provided at one or more compartments so as to protect the goods of the user 2000 flights.

Similarly, for protection against degradation caused by seawater, one or more compartments may be watertight.

As will be explained below, and this according to a preferred embodiment of the present invention, the propulsion system 1000 comprises at least one propulsion device 1300 in a marine environment 3400.

In a preferred manner, this submarine propulsion device 1300 3400 comprises a first 1320 and a second 1330 nozzle. These nozzles 1320, 1330 comprise at least one water inlet 1321, 1331 and at least one water outlet 1324, 1334.

Preferably, in each nozzle 1320, 1330 is a propeller 1323, 1333 configured to be driven by an electric motor 1322, 1332 disposed within the outer wall 1100 so that the seawater enters via the entry of water 1321, 1331, then is accelerated by the propeller 1323, 1333 in rotation before emerging from the nozzle 1320, 1330 via the water outlet 1324, 1334 thus allowing the propulsion system 1000 to be propelled. A control device 1310 is preferably disposed at the outer wall 1 100 of the propulsion system 1000 so as to allow the user 2000 to drive the propulsion system 1000 during its underwater propulsion phase 3400 This control device 1310 will be described further later.

Advantageously, the propulsion system 1000 comprises at least a first face facing the free surface of the water and at least a second face facing the seabed when the user controls the propulsion system.

These first and second faces are preferably in contact with a part of the body of the user when the latter controls the propulsion system.

In particular, it will be advantageous if these first and second faces are in contact respectively with a first part of the forearm of the user and with a second part of the forearm of the user, the first part being opposed to the second part, and preferably the first part facing the seabed when the user controls the propulsion system.

Cleverly, these first and second faces act as a pivot point relative to the user's forearms which serve as a lever, so that by the application of a force on the lever by the user, the inclination of the propulsion system can be modified, for example upwards or downwards, or resulting in a rotation of the propulsion system around an axis parallel to its axis of advance if the application of this This force is made asymmetrically, that is to say, when one forearm experiences a force of opposite direction relative to the other.

In this figure we note in particular an embodiment in which a portion of the back of the user is in contact with an integral element of the propulsion system.

It may be a part of the shell, a belt or any rigid element integral with the outer wall.

In this configuration, this element carries the second face and for example, the inclination of the propulsion system can be changed when the user uses his trunk as a lever and the second face plays the role of pivot point. As a result, the front or rear part of the propulsion system therefore plays the role of load according to the inclination change chosen by the user.

If he wants to climb for example, then his pelvis will come into contact with the rear of the propulsion system at the level of the first side. According to one embodiment, the user can also tilt up the propulsion system using his elbows as a fulcrum on the propulsion system, the outer wall thus playing the role of first face, and part of second-sided handles. According to one embodiment, the propulsion system 1000 comprises at least one bearing surface January 1 1 shaped to partially envelop at least a portion of the body of the user 2000 and preferably a portion of his torso and / or of his arms. This bearing surface January 1 1 is configured to cooperate with a body portion of the user 2000, preferably his forearm and / or his torso, to form a lever arm allowing the user 2000 to directing upwards and / or downwards the propulsion system 1000 while the propulsion device 1300 is responsible for advancing and / or reversing and / or turning the propulsion system 1000. FIG. 2 represents a scenario, according to an embodiment of the present invention, wherein the user 2000 is in the diving phase. The user 2000 is wearing a diving suit 2100, a diving mask 2300 and fins 2200. It should be noted that, in view of the presence of a propulsion system 1000, the user 2000 does not have obligation to carry 2200 fins.

According to one embodiment, the user 2000 can be secured to the propulsion system 1000 via a leash not shown. This leash thus allows the user 2000, if he wishes, to be towed by the propulsion system 1000.

Advantageously, the propulsion system 1000 may be configured to progressively return to the surface when an incident is detected and / or when the user 2000 wishes.

For example, when a user 2000 feels uncomfortable, he can activate the rise of the propulsion system 1000 to the surface and thus via the leash to be towed to the surface of the water.

Similarly, the propulsion system 1000 may comprise a user 2000 vital signal sensor, such as its respiratory and / or cardiac rhythm for example, and trigger the automatic ascent to the surface of the water as soon as an anomaly is detected, allowing the leash to pull the user 2000 to the surface of the water.

Indeed, particularly advantageously, the propulsion system 1000 comprises a buoyancy device 1800 configured to adjust the buoyancy of the propulsion system 1000 so as to reduce, increase or stabilize the buoyancy of the propulsion system 1000. Commonly, a 1800 buoyancy device can be called a "Stab", this 1800 buoyancy device having the role of stabilizing the depth of the propulsion system 1000.

Advantageously, the user 2000 carries a safety device 1700. This safety device 1700 is preferably secured to the user 2000. This attachment can be made via a strip for example or via an element directly incorporated in the diving suit 2100 of the user 2000. This safety device 1700 is also connected to the propulsion device 1300 at an emergency stop actuator 1312, for example configured to stop the propulsion of the propulsion system 1000.

Advantageously, the emergency stop actuator 1312 is configured to mechanically stop the propulsion of the propulsion system 1000 by closing the inlets 1321, 1331 and / or the water outlets 1324, 1334 of the nozzles 1320, 1330 of the propulsion device 1300.

As illustrated in Figure 2, the user 2000 does not carry a bottle of breathing gas. Indeed, the respiratory fluid reserves 161 1 are advantageously arranged in the propulsion system 1000.

Cleverly, a first-stage type expansion valve is disposed with the respiratory supply device 1600 in the casing formed by the outer wall 1100 of the propulsion system 1000.

This regulator said first stage type allows a drop in the pressure of the respiratory fluid from a high pressure, that present in the respiratory fluid reserve 161 1 to a so-called intermediate pressure.

Then a second stage type regulator 1630 is disposed following the first stage type regulator so as to further reduce the pressure of the respiratory fluid from said intermediate pressure to a pressure allowing the user 2000 to breathe through said pressure regulator 1630. second floor type.

Thus, advantageously, the user 2000 simply uses a second stage regulator 1630 so as to breathe during his dive. This allows him to have greater mobility by not having to wear a bottle of breathing gas on his back for example.

In addition, according to a preferred embodiment of the present invention, the reserve of respiratory fluid 161 1 contained in the propulsion system 1000 may be greater than if the user 2000 had to carry on himself a reserve of respiratory fluid. This implies longer dive times.

According to one embodiment, the respiratory supply device 1600 may comprise a device for recycling the respiratory fluid so that the respiratory fluid rejected by the user 2000 is recycled and can be assimilated again by the user 2000.

For example, the air supply device 1600 may comprise an air purifier configured to remove the carbon dioxide rejected by the user 2000. This purifier may comprise a carbon dioxide absorber on lime for example or a carbon dioxide adsorber via an activated carbon device.

According to this embodiment, the respiratory supply device 1600 may comprise a limited supply of oxygen and a limited reserve of nitrogen configured solely to replace the gas lost through the diving mask 2300 for example. This embodiment thus makes it possible to reduce the amount of respiratory fluid embedded in the propulsion system 1000 while considerably lengthening the duration of the dives. In addition, it avoids or reduces the production of bubbles. This increases the stealth of the user 2000, especially with respect to underwater wildlife.

FIG. 2 illustrates, according to an embodiment of the present invention, the user 2000 in a diving situation and in particular a possible posture of the user 2000 relative to the propulsion system 1000. This posture, in accordance with FIG. 2 , may correspond to a part of the bust of the user 2000 brought into contact on a reception range that includes the propulsion system 1000.

This reception range has dimensions allowing to accommodate at least at least the arms of the user 2000 and / or the bust of the user 2000.

Advantageously, this reception range may comprise at least one support surface 1 1 1 1 allowing the user 2000 to apply a force by leverage at this support surface 1 1 1 1 so as to modify the inclination of the propulsion system 1000.

According to one embodiment, the propulsion system 1000 is configured to be disposed at the bust of the user 2000 so as to release his field of vision towards the seabed 3300 located below him during the diving phase . From a propulsion point of view, and as previously indicated, the propulsion system 1000 may comprise one or more nozzles 1320, 1330 comprising at least one water inlet 1321, 1331 and a water outlet 1324, 1334 of same as a motor 1322, 1332 and a propeller 1323, 1333, the whole being arranged so that the motor 1322, 1332 drives in rotation, preferably via a magnetic coupling, the propeller 1323, 1333 resulting in in turn a flow of seawater flowing from the water inlet 1321, 1331 to the water outlet 1324, 1334, this seawater being accelerated by the propeller 1323, 1333 so as to produce a positive pressure leading the propulsion system 1000 in the 3400 underwater environment.

Advantageously, the arrangement in a nozzle 1320, 1330 of the propeller 1323, 1333 makes it possible to reduce the cavitation phenomenon thus allowing the present invention to have a noisy propulsion device 1300 relative to the aquatic fauna, to limit the nuisance of the present invention for aquatic fauna, thereby reducing the distance accessible to the user 2000 to approach said aquatic fauna.

In addition, the provision of the propeller 1323, 1333 in an enclosed area allows the user 2000 not to hurt by limiting the possibility of contact between the user 2000 and the propeller 1323, 1333. This security is increased by the optional positioning of a gate at the water inlet 1321, 1331 and / or the water outlet 1324, 1334.

The positioning of grids at the water inlet 1321, 1331 also makes it possible to filter the seawater entering the nozzle 1320, 1330 so as to reduce the fouling by algae or other elements of the propeller 1321, 1331 and the nozzle 1320, 1330. In Figure 2 an additional propulsion device 1400 is shown. Indeed, according to one embodiment, the propulsion system 1000 may comprise an additional propulsion device 1400 configured to allow to suddenly increase the acceleration of the propulsion system 1000 when for example the user 2000 wishes to follow an aquatic animal with a great acceleration capacity like a dolphin for example.

In this situation, the user 2000 can use this additional propulsion device 1400. This device is advantageously configured to allow the respiratory fluid to exit the propulsion system 1000 from the respiratory supply device 1600 via, for example a bypass of the circulation circuit of the respiratory fluid in the propulsion system 1000.

This abrupt exit of the respiratory fluid, generally under pressure, thus allows the propulsion system 1000 to rapidly increase its speed via a sudden acceleration.

In Figure 2, the respiratory fluid outlet 1410 of the additional propulsion device 1400 is shown.

Figures 3a and 3b respectively show a top view and profile of a propulsion system 1000 according to a first embodiment of the present invention. These two figures illustrate in tinted dots an example of a respiratory fluid circulation circuit inside the propulsion system 1000. This circuit has the respiratory fluid supply of two connectors for regulators 1630 of the second stage type and the power supply. in respiratory fluid of the additional propulsion device 1400.

In these figures, there is also shown a compartment 1620 configured to accommodate at least a portion, and preferably all, of the diving equipment of the user 2000.

In FIG. 3a, lateral gripping elements 1230 are shown. These elements allow the user 2000 or a plurality of users to keep to the propulsion system 1000 and / or to hold the propulsion system 1000.

In this figure and according to a preferred embodiment, the propulsion system 1000 comprises a display device 1900 comprising at least one digital or analog display screen carried by the outer wall 1100. This display device 1900 is configured to allow the visualization of parameters related to the dive and for example at least the respiratory fluid stored in the respiratory supply device 1600 such as its quantity and / or composition.

Advantageously, the display device 1900 makes it possible to display a large amount of information, including energy and / or respiratory autonomy information, navigation data, thermal imaging for example, or tourist data related to the dive site.

According to one embodiment, the propulsion system 1000 comprises at least one attachment device intended to receive a portion of the user's diving equipment 2000 at the outer wall 1100. This equipment preferably comprises devices such as: manometer, compass, deep imeter, so that the user 2000 can use his own measuring equipment with which he is accustomed to diving. This fixing device comprises a connecting member, fluidic or electrical or optical, for its connection with elements embedded in the propulsion system 1000. Thus, for example, a manometer, for example specific to the user 2000, can be connected to the diving cylinders embedded in the propulsion system 1000.

According to one embodiment, the propulsion system 1000 comprises an indicator of the duration of usable respiratory fluid and a positioning device relating to the surface of the water so as to make it possible to inform the user 2000 via the device of the invention. 1900 display that he must begin to rise to the surface.

In FIG. 3a, note the presence of the second face 1 1 1 1 b previously described. This face is configured to cooperate with the back of the user 2000 so as to change the inclination of the propulsion system 1000 relative to the horizontal lever effect. This allows the user 2000 to move in an upward or downward direction.

In this figure, the second face 1 1 1 1 b, according to one embodiment, is carried by a back element in contact with the back of the user 2000, it may be a belt, or of a rigid portion of the outer wall 1100 of the propulsion system 1000. According to this embodiment, it is the pelvis of the user that can be in contact with the first face 1 1 1 1 a not visible in this figure.

In Figure 3b, a buoyancy device 1800 is shown. This buoyancy device 1800 may comprise one or more ballast 1810, 1820. Advantageously, this buoyancy device 1800 is configured to allow the adjustment of the buoyancy of the propulsion system 1000 so as to adjust its depth in the underwater environment 3400.

According to a particularly advantageous embodiment, this buoyancy device

1800 is configured to be self-regulating so that, for example, when the user 2000 wishes to move away from the propulsion system 1000 while wishing to keep it at a predetermined depth, the buoyancy device 1800 maintains this depth via a control loop. feedback for example.

In general, the buoyancy device 1800 is configured so as to stabilize in depth and preferably continuously the propulsion system 1000 regardless of the depth at which it is located.

It should be noted that the buoyancy device 1800 has several advantages that are the stabilization of the depth, the ascent and descent controlled, nevertheless, it is advantageous to have at least a first and a second face as previously described so to adjust very easily and for small variations the depth during the piloting of the propulsion system 1000 by the user 2000.

Figure 3c shows a view from above and in longitudinal section of the propulsion system 1000 according to one embodiment of the present invention. In this figure, a first 1810 and a second ballast 1820 are shown. They are part of the buoyancy device 1800 of the present invention which allows an adjustment of the buoyancy of the propulsion system 1000 so as to allow the user 2000 to control its descent to the seabed 3300, its rise to the surface and its depth of navigation in the propulsion phase.

To also complete this 1800 buoyancy device, it may be envisaged to have one or more 1830 compensation seals at the level of the propulsion system 1000.

In this same figure, an optical fiber communication device 131 1 is shown allowing communication between at least the control device 1310 and the propulsion device 1300.

Advantageously, the control device 1310 may comprise at least one joystick, preferably two joysticks, also called thereafter handles.

According to a preferred embodiment, each control lever is configured to control at least one electric motor 1322, 1332, preferably both electric motors 1322, 1332 simultaneously.

Preferably, the user 2000 uses the two joysticks of the control device 1310 in order to control the propulsion system 1000.

According to one embodiment, the control device 1310 makes it possible to control the speed of propulsion in the forward direction, but also in reverse of the propulsion system 1000.

Advantageously, the control device 1310 is also in charge of controlling the buoyancy device 1800 so as to control the depth at which the propulsion system 1000 evolves.

Thus, through at least one joystick and preferably two handles, the user

2000 can drive in a three-dimensional space the propulsion system 1000 to go up and down, but also to go right or left, and finally to accelerate or slow down, or even to brake, or even back.

Advantageously, the control handles comprise optical controls configured to cooperate with the optical fiber communication device 131 1. Thus, for example, the sending of a command can be achieved by the interruption of a light beam. , preferably in the infrared range, at the control device 1310.

The use of an optical fiber communication device 131 1 between different elements of the propulsion system 1000 allows greater reliability and resistance to the underwater environment relative to conventional technologies using electrical wiring. The electronics and photonics of the present invention can be completely trapped in a tight and preferably transparent resin.

In this FIG. 3c, a particular embodiment is presented, it is a case where the coupling between the electric motors 1322, 1332 and the propellers 1323, 1333 is made via a magnetic coupling so as to allow isolation of the electric motor 1322, 1332 relative to the underwater environment and in particular to seawater.

In this figure, is also shown at least one power supply 1500, 1346 and preferably two power supplies 1500, 1346 advantageously rechargeable.

These power supplies 1500, also called power supply devices 1346, comprise an electrical energy storage module 1346a, such as a battery for example, and an electric energy recharging module 1346b.

According to one embodiment, the electric energy recharging module 1346b can be an electric energy recharge module by induction in order to avoid the presence of electrical contact that can be exposed to seawater.

According to one embodiment of the present invention, the power supply, and more particularly the power supply device (s) 1346 are removable so as to allow their replacement as soon as they are discharged. Preferably, in order to improve the reliability and durability of the present invention, these removable power supply devices 1500, 1346 comprise at least one electrical energy storage module 1346a, at least one electric energy recharge module 1346b by induction and at least one module for transmitting electrical energy by induction to the propulsion device 1300, for example to the electronic device 1347 and / or the electric motor 1343.

According to this embodiment, the propulsion device 1300 of the propulsion system 1000 is integral with it and the power supply devices 1500, 1346 are removable.

The use of the induction energy transmission technology makes it possible to increase the durability and reliability of the present invention by avoiding the presence of metal elements exposed to the marine environment.

According to a conceivable embodiment, the propulsion system 1000 comprises at least one and preferably at least two removable propellers 1340 designed to be autonomous and interchangeable. Indeed, each thruster 1340 comprises at least:

^■ a nozzle 1341,

^■ a water inlet 1342,

^■ a water outlet 1345,

^■ a 1343 electric motor powered by a power supply device 1346, preferably rechargeable, the electric motor

1343 rotating a propeller 1344 through at least one motor shaft 1344a.

In addition, each thruster comprises on its surface at least one light source 1347a, 1347c and at least one optical sensor 1347b, 1347d, both of which are configured to cooperate with at least one optical fiber whose path of light can be interrupted by the user 2000, in order to act as a control device 1310 of the thruster 1340. Advantageously, the optical sensor 1347, 1347d is configured to detect a light signal emitted by the light source 1347a, 1347c.

It should be noted that in a particularly advantageous manner, each thruster 1340 can be controlled independently of one another.

Also, a first thruster 1340 can work perfectly at a speed of rotation of the propeller 1344 different from that of the propeller 1344 of a second propellant 1340, or in a different direction of rotation, or even not work while the second 1340 thruster is in operation.

According to one embodiment, the propulsion system 1000 comprises a positioning device relative to a boat 3100 so that the amount of energy to allow the return to the boat 3100 is evaluated and that the propulsion system 1000 informs the user 2000 via the display device 1900 that he must return to the boat 3100. This dynamic evaluation of the energy autonomy of the propulsion system 1000 contributes to securing the diving for the user 2000.

According to a non-illustrated embodiment, the propulsion system 1000 may comprise one or more lighting devices of the underwater environment so as to allow better visibility for the user 2000 of said underwater environment.

FIG. 3d shows a retractable gripping element 1220. According to one embodiment, it may be a handle 1221 disposed in part at least on the outer wall 1100 of the propulsion system 1000. This handle 1221 is configured to it can be detached from said outer wall 1100.

Advantageously, this handle 1221 is secured to a rope 1222, itself secured to the propulsion system 1000.

Thus, when the retractable gripping member 1220 is in the deployed position, a portion of the rope 1222 is located outside the casing formed by the outer wall 1100.

This retractable gripping element 1220 also comprises a return element not shown in FIG. 3d and preferably housed in the propulsion system 1000.

The biasing member is configured to automatically move the retractable gripping member 1220 from said deployed position to a so-called retracted position in which the rope 1222 is completely contained by the propulsion system 1000.

According to another embodiment, the propulsion system 1000 may comprise a gripping element comprising a rope, with or without knots, and being preferably wound at least partly on the outer wall 1100 of the propulsion system 1000. rope can have a length of about 15m. Thus, whether it is by a retractable gripping element 1230 or via the use of a rope, the present invention can be towed out of the water by the user 2000.

FIG. 4 illustrates a scenario, according to an embodiment of the present invention, in which the propulsion system 1000 is in the underwater parking position 3400. That is to say, it is configured to remain at a predetermined depth, and preferably at a predetermined position.

The propulsion system 1000 may for example have a feedback loop adjusting its buoyancy over time in order to maintain a stable depth, or even have a feedback loop adjusting its spatial position by driving the propulsion device 1300 directly or indirectly. .

In order to determine the spatial position of the propulsion system 1000, it may have a relative positioning device relative to the boat 3100 and / or the user 2000, and / or have an absolute positioning device of satellite positioning type for example.

This underwater parking 3400 thus allows the user 2000 to move away from the propulsion system 1000 so as to explore a wreck for example or 3300 seabed, to bring back objects for example that can be supported soon when the propulsion system 1000.

This embodiment thus makes it possible to "park" the propulsion system 1000 in a submarine environment 3400 in order to find it at the same depth and advantageously at the same location.

According to one embodiment, the propulsion system 1000 may comprise an anti-theft key configured to remain on the user while diving so that only the key can allow the control of the propulsion system 1000, thus reducing the risk of theft when the propulsion system 1000 is in the underwater parking position 3400.

According to an advantageous embodiment, the user 2000 has on him a tracking device with which the propulsion system 1000 is able to communicate so for example that the propulsion system 1000 can follow the user 2000 when it moves independently of the propulsion system 1000. For example, if the user 2000 decides to explore a 3300 seabed by disposing the propulsion system 1000 in the underwater parking position 3400, the system propulsion 1000 is able to move in order to maintain a substantially constant maximum distance between the user 2000 and the propulsion system 1000. Thus when the user 2000 moves away, the propulsion system 1000 follows and when the user 2000 gets closer the propulsion system stays in underwater parking position.

According to another embodiment, in the event of a problem, the user 2000 can activate his tracking device so that the propulsion system 1000 approaches him and rejoins him. In this FIG. 4, it will be noted that according to one embodiment, the propulsion system 1000 comprises two first faces 1 1 1 1 a and two second faces 1 1 1 1 b. The second side 1 1 1 1 b are carried by the control device 1310, otherwise represented here by two handles. The first faces 1 1 1 1a correspond to a reception area of the forearms of the user 2000 when it controls the propulsion system 1000.

We will now describe Figures 5a to 7c showing three embodiments of the present invention, all three compatible with all of the features and embodiments described above.

FIGS. 5a, 5b and 5c illustrate, according to a second embodiment, a propulsion system 1000 according to the present invention.

Figure 5a is a perspective view of the propulsion system 1000 according to this second embodiment. In this figure, a regulator 1630, an additional expander 1640, a control device 1310, a display device 1900, a gripping device 1200, a lateral gripping element 1230, a safety device 1700, the outer wall are illustrated. 1 100 of the propulsion system 1000, a respiratory supply device 1600, a first water inlet 1321 and a first water outlet 1324.

Figure 5b is a top view of the propulsion system 1000 according to this second embodiment. There is a first water inlet 1321, a first water outlet 1324, a second water inlet 1331 and a second water outlet 1334.

Figure 5c is a side view of the propulsion system 1000 according to this second embodiment. Note in this figure, the positioning of a wheel 1210 at one end of the propulsion system opposite the gripping device 1200.

This second embodiment is configured so that the user 2000 positions the propulsion system 1000 at its torso so that its head protrudes forward of the propulsion system 1000 thus allowing it to observe the underwater environment 3400 under the 1000 propulsion system.

According to one embodiment, the second faces 1 1 1 1 b are carried in this figure by an outer wall portion 1 100 having a shape of handles. The first faces 1 1 1 1a correspond to a reception area of the forearms of the user 2000 when the latter controls the propulsion system 1000. FIGS. 6a, 6b and 6c illustrate according to a third embodiment a propulsion system 1000 according to the present invention.

Figure 6a is a perspective view of the propulsion system 1000 according to this third embodiment. In this figure, a regulator 1630, an additional expander 1640, a control device 1310, a display device 1900, a gripping device 1200, a wheel 1210 in the form of a roller, a safety device 1700 are illustrated. , the outer wall 1100 of the propulsion system 1000, a breathing supply device 1600, a first water inlet 1321 and a first water outlet 1324.

Figure 6b is a top view of the propulsion system 1000 according to this third embodiment. There is a first water inlet 1321, a first water outlet 1324, a second water inlet 1331, a second water outlet 1334 and the gripping device 1200.

Figure 6c is a side view of the propulsion system 1000 according to this third embodiment. Note in this figure, the positioning of the wheel 1210 and the gripping device 1200 which are in a reverse relative configuration relative to the second embodiment described above.

This third embodiment, like the second previously described, is configured so that the user 2000 positions the propulsion system 1000 at his torso so that his head protrudes ahead of the propulsion system 1000 thus allowing him to observe the underwater environment 3400 under the propulsion system 1000.

FIGS. 7a, 7b and 7c illustrate, according to a fourth embodiment, a propulsion system 1000 according to the present invention.

Figure 7a is a perspective view of the propulsion system 1000 according to this fourth embodiment. In this figure, a regulator 1630, an additional expander 1640, a control device 1310, a display device 1900, a gripping device 1200, a wheel 1210 in the form of a roller, a safety device 1700 are illustrated. , the outer wall 1100 of the propulsion system 1000, a lateral gripping member 1230, a breathing supply device 1600, a second water inlet 1331 and a second water outlet 1334.

This figure shows the bearing surfaces 1 1 1 1 comprising the first faces

1 1 1 1a and the second faces 1 1 1 1 b, shaped to partially envelop at least a portion of the forearms of the user 2000 to cooperate with them and to allow the user 2000 to change the inclination of the propulsion system 1000 up or down by leverage.

In particular in this figure we note that the first faces 1 1 1 1a and the second faces 1 1 1 1 b as described above and which allow the adjustment of the inclination of the propulsion system 1000 by leverage, are worn by the same surface forming a portion of the outer wall 1100.

Figure 7b is a top view of the propulsion system 1000 according to this fourth embodiment. It includes the control device 1310 disposed at the front of the propulsion system 1000, a first water inlet 1321, a first water outlet 1324, a second water inlet 1331, a second water outlet 1334 , the wheel 1210 in the form of a roller and the gripping device 1200.

Figure 7c is a side view of the propulsion system 1000 according to this fourth embodiment. Note in this figure, the positioning of the wheel 1210 and the gripping device 1200, one and the other being located at opposite ends of the propulsion system 1000.

This fourth embodiment, like the second and the third previously described, is configured so that the user 2000 positions the propulsion system 1000 at his torso so that his head protrudes forward of the propulsion system 1000 him. thus making it possible to observe the underwater environment 3400 under the propulsion system 1000. However, this fourth embodiment has two forward extensions of the propulsion system 1000 extending on either side of the system. 1000. The control device 1310 is advantageously arranged at these two extensions allowing the user 2000 to extend the arms forward of the propulsion system 1000.

The hands of the user 2000 are thus positioned in front of his head relative to the longitudinal direction of the propulsion system 1000. More specifically, his hands are positioned in front of and under his head.

Preferably, the extensions define an opening, located vertically above the head of the user 2000. As illustrated in FIGS. 7a, 7b and 7c, the extensions do not join. These extensions partially define at least the bearing surfaces 1 1 1 1 comprising the first face 1 1 1 1a and the second face 1 1 1 1 1b. In the embodiments of FIGS. 5a to 5c, 6a to 6c and 7a to 7c, the nozzles 1320,

1330 are located inside the casing formed by the outer wall 1 100. Thus they do not form a projection on the shell 1 1 10. This reduces their damage especially during transport or when driving near to rocks for example.

This also facilitates the movements of the user 2000 around the shell 1 1 10. In addition the entries 1321, 1331 and the outputs 1324, 1334 of water are also located inside the envelope formed by the outer wall 1,100.

These last three embodiments, like the first embodiment, allow the user 2000 to evolve in a marine environment 3400 without the need to have a user-supplied breathing device 1600 2000 himself.

The geometrical arrangement of these last three embodiments allows the propulsion system 1000 to present to the user 2000 a clear field of view towards the seabed 3300 under the propulsion system 1000 and therefore under the user 2000.

Advantageously, this field of view may comprise one or more optical devices configured to improve the visibility of the user 2000 through for example a camera, a thermal imaging, a magnifying lens or any other optical device.

The first embodiment presented above may also include such a field of view and in particular via the use of a camera disposed under the propulsion system 1000 for example. Figures 8a, 8b and 8c illustrate a thruster 1340 according to a preferred embodiment of the present invention.

According to this embodiment, the propulsion system 1000 comprises at least one propellant and preferably at least a first and a second propellant 1340 disposed on either side of the respiratory supply device 1600, and preferably on the one hand and on the other. other of the user 2000 in the propulsion phase.

This makes it possible to balance the propulsion system 1000 with respect to its weight, but also to the thrust applied to it by the thrusters 1340.

Advantageously, each thruster 1340 can be housed in a thruster body 1340a, said thruster body 1340a comprising at least:

^■ a propeller 1344;

^■ a nozzle 1341 comprising at least one water inlet 1342, 1342a, 1342B and 1345 at least one water outlet;

An electric motor 1343 being configured to rotate said propeller 1344 housed in said nozzle 1341 via at least one motor shaft 1344a;

^■ a power supply device 1346 configured to electrically supply at least said electric motor 1343;

An electronic device 1347 configured to control at least said electric motor 1343.

Preferably, the thruster body 1340a is removably mounted relative to the outer wall 1100 so that the entire thruster 1340 can easily be replaced simply by replacing the thruster body 1340a.

In a particularly advantageous manner, all the propellant bodies 1340a are identical. This makes it possible to replace a damaged or no longer powered 1340 thruster by another 1340 thruster in perfect working order or fully electrically charged.

Indeed, according to one embodiment, the power supply device 1346 comprises at least one electrical energy storage module 1346a and at least one electric energy recharging module 1346b. Thus, it is possible to electrically recharge a thruster 1340 according to the present invention.

According to a preferred embodiment, the electric energy recharging module 1346b is an induction charging module. This makes it possible to recharge the thruster 1340 through its outer casing, that is to say without electrical contacts being necessary. These electrical contacts are generally unreliable and eventually corrode with seawater. The use of a 1346b induction charging module ensures greater reliability and durability of the 1340 thruster, not to mention the ease of use. This is a user-charge and recharge that offers to the 2000 user. Inductive charging can advantageously be provided to accommodate at least one thruster 1340 for recharging electrically.

The interchangeable and / or removable nature of the thrusters 1340 according to a preferred embodiment of the present invention allows the user 2000 to quickly replace a thruster 1340 electrically discharged by another having been loaded. Thus, during a dive, one or more thrusters 1340 may be recharging at the surface, and at the end of the dive, the user 2000 can easily replace the 1340 thruster (s) unloaded by thrusters 1340 loaded in order to continue. his diving for example.

According to one embodiment, the propulsion system 1000 may comprise a compartment comprising a thruster 1340 loaded with relief in the event of a breakdown or an anomaly of a thruster 1340 during a dive. Thus, the user 2000 can easily replace the defective 1340 thruster with the 1340 emergency thruster.

It should be noted that the thrusters 1340 can be secured to the propulsion system 1000 by various removable means, whether by straps in the simplest case through dedicated housings in the hull 1 1 10 of the system. propulsion 1000 or by embedding the thrusters 1340 between the hull 1 1 10 and the rest of the body of the propulsion system 1000. All types of fasteners allowing the replacement of thrusters 1340 can be used, and preferably their replacement including in a marine environment or even submarine.

In order to easily control the propulsion system 1000 and to control the thrusters 1340, they have an electronic device 1347 comprising at least one transmission module 1347f of at least one signal, or even data, and at least one receiving module 1347g of at least one signal, or even data.

The transmission module 1347f is configured to transmit at least one signal to the control device 1310 of the propulsion system 1000 and the reception module 1347g is configured to receive at least one signal from the control device 1310.

The 1347g and 1347f transmitters may be radio frequency modules, for example, or else wired. Nevertheless, a non-wired communication solution is preferable to allow a greater durability of the thruster 1340 while avoiding the presence for example of electrical contacts that can be exposed to seawater. Indeed, the thrusters 1340 being removable relative to the propulsion 1000, an electrical connection would therefore be necessary to connect them to the control device 1310. Although this solution is possible according to one embodiment, a solution by radio frequency or by optical communication is preferred.

Thus, according to a preferred embodiment, the propulsion system 1000 uses an optical communication system 131 1 to drive the thrusters 1340.

According to this embodiment, the transmission module 1347f comprises at least one light source 1347a, 1347c and the reception module 1347g comprises at least one optical sensor 1347b, 1347d configured for detecting at least one light signal emitted by said light source 1347a, 1347c.

In order to minimize the electronics at the control device 1310 and to increase the reliability thereof, according to one embodiment, the control device 1310 may comprise an optical fiber whose optical path can be interrupted by the user 2000, for example by the positioning of a finger in a cavity disposed at the control device 1310.

Thus, a light signal is emitted from the electronic device 1347 of a thruster 1340 by a light source 1347a, 1347c disposed on the surface of the thruster 1340, this light signal then enters at least one optical fiber arranged opposite said light source 1347a, 1347c when the thruster 1340 is mounted in and / or on the propulsion system 1000. Advantageously, this optical fiber is preferably mounted permanently in or on the propulsion system 1000. This light signal is thus guided by the optical fiber to the control device 1310 may for example take the form of a joystick.

At the control device 1310, for example at this lever, the optical fiber is cut so that the optical path can be interrupted for example by the thumb of the user 2000. Thus, the optical fiber comprises two parts, a first portion disposed between the light source 1347a, 1347c and for example a cavity adapted to receive a finger of the user 2000 and a second portion disposed between said cavity and the optical sensor 1347b, 1347d mounted opposite said second part of the optical fiber.

Thus, when the optical path is not interrupted, the light signal is emitted by the light source 1347a, 1347c, it is guided by the first part of the optical fiber, passes through the cavity, enters the second part of the optical fiber then guided by the second portion of the optical fiber to be detected by the optical sensor 1347b, 1347d. The interruption by any means of this optical path allows the user 2000 to control the thruster 1340, for example to actuate the rotation of the propeller 1344.

Thus, for example, the electronic device 1347 can be configured to activate the power supply of the electric motor 1343 by the power supply device 1346 as soon as the optical sensor 1347b, 1347d does not receive light signals emitted by the light source 1347a, 1347c.

Advantageously, each thruster 1340 is driven in the same way. Thus the control device 1310 may comprise a joystick, a support or an element comprising at least one cavity or preferably two cavities in order to independently drive the first thruster 1340 and the second thruster 1340.

According to another embodiment, the control device 1310 may comprise two handles, two supports or two elements each comprising at least one cavity so that, for example, the joystick on the right pilot the first propeller 1340 disposed to right of the user 2000 and that the left lever controls the second thruster 1340 disposed to the left of the user 2000.

Preferably, each thruster is controllable independently of the others. According to an advantageous embodiment, each thruster 1340 is configured to operate in forward and reverse. In other words, the propeller 1344 of each thruster 1340 is configured to be rotated in a first direction corresponding to the forward direction and in a second direction corresponding to the reverse.

According to this embodiment, the transmission module 1347f of each thruster 1340 as well as the receiving module 1347g of each thruster 1340 are configured to respectively transmit and receive at least one signal respectively to and from the control device 1310 in order to control the activation and the direction of rotation of each propeller 1344.

According to a preferred embodiment, each transmission module 1347g comprises at least a first light source 1347a and a first optical sensor 1347b configured for controlling the forward movement of the thruster 1340 and at least one second light source 1347c and a second sensor Optical 1347d configured for 1340 thruster reverse control.

According to this embodiment, a cavity is thus dedicated to the forward movement of the thruster 1340 and another to the reverse of the thruster 1340 at the control device 1310, and it is preferably so for each thruster 1340.

According to one embodiment, a single cavity can control the forward movement of the first and second thrusters 1340 and a single cavity can control the reverse.

However, in order to enable easy rotation, the preferred embodiment consists of a decoupled control of each thruster 1340.

We will now describe in more detail Figures 8a, 8b and 8c.

Figure 8a shows a thruster 1340 according to an embodiment of the present invention. This thruster 1340 has a cylindrical shape and comprises a nozzle 1341 preferably comprising a plurality of water inlets 1342, 1342a, 1342b disposed at two opposite sides along the nozzle 1341 and comprising a water outlet 1345. This water outlet 1345 preferably comprises a protective grid 1348 to prevent the user 2000 from coming into contact with the propeller 1344 housed inside the nozzle 1341.

Concerning the water inlets 1342, 1342a, 1342b, and according to one embodiment, these consist of a first plurality of water inlets 1342a intended to face the user 2000 for example, and a second plurality of water inlets 1342b intended to be oriented towards the outside of the propulsion system 1000. This second plurality of water inlets 1342b advantageously comprises a plurality of flaps 1342c. These flaps 1342c are oriented at an angle 1342d substantially equal to 45 ° relative to the main direction of extension of the nozzle 1341, and more particularly relative to the direction of extension of the motor shaft 1344a of the thruster 1340, or relatively to the axis of movement of the propulsion system when the user is piloting it. This plurality of flaps 1342c, in particular via their orientation, has the function of allowing the propulsion system 1000 to be put into reverse.

Indeed, in advance before the water enters the thruster 1340 via the water inlets 1342a, 1342b, this water is accelerated by the propeller 1344 and then accelerated spring by the water outlet 1345 thruster 1340.

In the case of reverse gear, the water enters the thruster 1340 via the water outlet 1345, and then spring, accelerated by the propeller 1344, via the water inlets 1342a, 1342b of the thruster 1340.

In the absence of flaps 1342c, and when the thruster is in reverse, the accelerated water out of the nozzle 1341 at a substantially orthogonal angle relative to the main extension of the thruster 1340, this therefore produces a very small thrust or no thrust allowing the propulsion system 1000 to back.

Conversely, by using one or more shutters 1347c arranged at an angle 1347d substantially close to 45 °, the accelerated water flow is directed mainly towards the front of the thruster 1340, and therefore towards the front of the propulsion system. 1000. This allows the application of a non-zero thrust forward of the propulsion system 1000, and thus its rearward movement, that is to say its setting in reverse.

According to a preferred embodiment, each water inlet 1342b of the second plurality of water inlet comprises a flap.

Figure 8b shows the thruster 1340 of Figure 8a at another angle of view. Note that in front of the thruster 1340, that is to say at its end opposite the water outlet 1345, there is a surface preferably comprising the first 1347a and second 1347c light sources, the first 1347b and second optical sensors 1347d and advantageously a plurality of light indicators 1347 to know the electric charge level of the thruster 1340.

According to a preferred embodiment, it is also at this surface that the electric energy recharging module 1346b is located by induction so that the thruster 1340 can for example be disposed out of water 1345 upwards on a induction charging base not shown.

Figure 8c is a sectional view of a thruster 1340 according to Figures 8a and 8b. This figure shows the water outlet 1345 and the propeller 1344 configured to be rotated by the drive shaft 1344a connected to the electric motor 1343. This propeller 1344 is configured to accelerate incoming water via the water inlets 1342a, 1342b and / or the water outlet 1345 in the direction of rotation of the propeller 1344.

Preferably a sealing member 1343a separates the electric motor from the seawater.

This figure shows the plurality of flaps 1342c associated with the second plurality of water inlet 1342b and forming an angle 1342d close to 45 ° with the direction of the motor shaft 1344a.

This figure shows the electronic device 1347 and the power supply device 1346 with its electrical energy storage module 1346a and its electric charging module 1346b, preferably by induction.

Finally, we note the presence of light sources 1347a, 1347c and optical sensors 1347b, 1347d.

The present invention makes it possible to dispense with controllable flaps for controlling the orientation of the propulsion system.

Very advantageously, the use of a buoyancy device, at least one thruster, and preferably two, and a first and second face intended to serve as a pivot point according to various scenarios allow the user to move freely and simply underwater.

The present invention allows a simple and reliable way to change the inclination of the propulsion system by simply applying a pressing force, leverage, the user on part of the propulsion system.

The present invention thus makes it possible to dispense with the presence of controllable flaps which would have the function of modifying the inclination of the propulsion system.

Likewise, the design of the present invention is simplified and its durability increased by the necessity of a steerable lever whose function is to modify mechanically or electronically the direction of advance and / or recoil of the propulsion system.

Naturally, the invention also encompasses the propulsion systems which comprise controllable flaps whose function is to modify the inclination of the propulsion system. In the latter case, the invention remains advantageous since it allows improved handling and responsiveness of the propulsion system.

According to one embodiment, the propulsion system 1000 may comprise one or more cameras configured to allow the taking of pictures and / or video during dives. This or these cameras can also be used for surveillance and user safety purposes 2000 from a 4000 earth station, aboard the boat 3100 for example. According to one embodiment, the propulsion system 1000 may comprise an emergency buoy configured to go up to the surface and signal the position of the propulsion system 1000 in the event of problems encountered by the user 2000, its triggering being able to be manual or automatic according to pre-established safety rules.

The present invention thus provides many advantages in the transport of diving equipment whether in the terrestrial area 4000 and / or underwater.

Indeed, on the one hand the user 2000 can store his equipment in the propulsion system 1000 and secondly there can store elements recovered during dives.

The present invention comprises gripping and rolling means allowing it to be handled in the terrestrial environment 4000 as would be a suitcase.

The invention is not limited to the previously described embodiments and extends to all the embodiments covered by the claims.

REFERENCES Propulsion system

1,100. External wall

1 1 10. Hull

1 1 1 1. Support surface

1 1 1 1a. First side

1 1 1 1 b. Second side

1200. Gripping device

1210. Wheel

1220. Retractable gripping element

1221. Handle

1222. Rope

1230. Lateral gripping element

1300. Propulsion device

1310. Piloting device

131 1. Optical fiber communication device

1312. Emergency stop actuator 1320. First nozzle

1321. First water inlet

1322. First electric motor

1323. First propeller

1324. First water outlet

1330. Second nozzle

1331. Second water inlet

1332. Second electric motor

1333. Second propeller

1334. Second water outlet

1340. Propeller

1340a. Propeller body

1341. Tuyère

1342. Water inlet

1342a. First plurality of water inlets 1342b. Second plurality of water inlets 1342c. Shutter

1342d. Angle of the shutter

1343. Electric motor

1343a. Sealing element

1344. Propeller

1344A. Engine shaft 1345. Water outlet

1346. Power supply device

1346a. 1346b electrical energy storage module. Electric energy charging module 1347. Electronic device

1347a. First light source

1347b. First optical sensor

1347c. Second light source

1347d. Second optical sensor

1347th. Illuminated indicators

1347f. Emission module

1347g. Receiving module

1348. Protection grid

1400. Additional propulsion device

1410. Exit of respiratory fluid

1500. Power supply

1600. Respiratory feeding device

1610. First compartment

161 1. Respiratory fluid reserve

1620. Second compartment

1630. Regulator

1640. Additional regulator

1700. Safety device

1800. Buoyancy device

1810. First ballast

1820. Second ballast

1830. Compensation Leads

1900. Display device

2000. User

2100. Diving suit

2200. Flippers

2300. Diving mask

3000. Marine environment

3100. Boat

3200. Fish

3300. Seabed

3400. Underwater environment

4000. Terrestrial environment

4100. Pontoon

Claims

1. Propulsion system (1000) capable of evolving at least one user (2000) underwater (3400) to a depth greater than or equal to 3m and configured to be fully immersed at least in a propulsion phase of the underwater user (2000) (3400), said propulsion system (1000) comprising at least:

An outer wall (1100) forming an envelope for the propulsion system (1000);

A piloting device (1310) in the underwater environment (3400) of the propulsion system (1000) by the user (2000), the control device (1310) being arranged in part at least on the outer wall (1); 100) so that the user (2000) controls the propulsion system (1000) being located outside the outer wall (1 100);

• a propulsion device (1300) of the submarine propulsion system (1000) (3400);

The propulsion system (1000) being characterized in that it further comprises at least:

A respiratory power supply device (1600) capable of supplying said user (2000) with at least one respiratory fluid;

A buoyancy device (1800) configured to adjust the buoyancy of the propulsion system (1000) so as to be able to deeply stabilize the propulsion system (1000) relative to its depth;

A first face (1 1 1 1a) opposite the free surface of the water when the user (2000) controls the propulsion system (1000);

A second face (1 1 1 1 b) facing the seabed when the user (2000) controls the propulsion system (1000);

The first face (1 1 1 1a) and the second face (1 1 1 1 b) being intended to be in contact with at least a part of the body of the user (2000) when the user (2000) controls the propulsion system (1000);

the propulsion system (1000) being configured so that the first (1 1 1 1a) or the second (1 1 1 1 b) faces respectively serve as a pivot point or load point to a lever formed at least partially by said portion of the user's body (2000) to change the inclination of the propulsion system (1000) when the user (2000) drives the propulsion system (1000).

2. propulsion system (1000) according to the preceding claim wherein, when the user (2000) driving the propulsion system (1000), the first face (1 1 1 1a) and the second face (1 1 1 1 b). ) are shaped so as to each have a non-zero projection on a horizontal plane.

3. propulsion system (1000) according to any one of the preceding claims wherein, when the user (2000) piloting the propulsion system (1000), the first face (1 1 1 1a) is in contact with a first part of the user's hand and / or forearm (2000), and the second face (1 1 1 1 b) is in contact with a second part of the hand and / or the front arm of the user (2000) different from the first part, said first part facing the seabed and said second part facing the free surface of the water.

4. propulsion system (1000) according to the preceding claim wherein, when the user (2000) driving the propulsion system (1000), the distance separating the first face (1 1 1 1a) of the second face (1 1 1 1 b) along the axis of extension of the forearm of the user (2000) is greater than or equal to 10 cm, preferably greater than or equal to 15 cm and preferably greater than or equal to 20 cm.

5. propulsion system (1000) according to any one of the preceding claims comprising for each forearm of the user (2000) a first (1 1 1 1a) and a second face (1 1 1 1 b).

The propulsion system (1000) according to any one of the preceding claims wherein the propulsion device (1300) comprises at least one propellant (1340), the propellant (1340) comprising at least:

• a propeller (1344);

A nozzle (1341) comprising at least one water inlet (1342, 1342a, 1342b) and at least one water outlet (1345);

An electric motor (1343) configured to rotate said propeller

(1344) housed in said nozzle (1341);

• a power supply device (1346) configured to electrically supply at least said electric motor (1343);

An electronic device (1347) configured to control at least said electric motor (1343).

7. Propulsion system (1000) according to the preceding claim wherein the power supply device (1346) comprises at least one electrical energy storage module (1346a) and at least one electric energy recharging module (1346b). said power storage module (1346a).

8. propulsion system (1000) according to the preceding claim wherein the electric energy charging module (1346b) is a charging module in electrical energy by induction.

9. propulsion system (1000) according to the preceding claim wherein the power supply device (1346) further comprises at least one induction electric power transmission module and wherein the thruster comprises at least one receiving module of induction electrical energy, the induction electric power transmission module and the induction electric energy receiving module being configured to cooperate together so that the power supply device (1346) electrically supplies power to the minus the electric motor (1343) by transmitting electrical energy by induction from the induction electric power transmission module to the induction electric energy receiving module.

10. propulsion system (1000) according to the preceding claim wherein the power supply device (1346) is removable relative to the propulsion system (1000).

A propulsion system (1000) according to any one of the preceding claims wherein the propulsion device (1300) comprises a propellant body (1340a) configured to house the propellant (1340), preferably to fully house the propellant (1340). thruster (1340).

12. Propulsion system (1000) according to the preceding claim wherein the propulsion device (1300) comprises a thruster body (1340a) configured to house the thruster (1340), preferably to fully house the thruster (1340) and in which the body and configured to be releasably secured to the outer wall (1 100) of the propulsion system.

A propulsion system (1000) according to any one of the preceding claims wherein the electronic device (1347) comprises at least one transmit module (1347f) and at least one receive module (1347g), the module transmission (1347f) comprising at least one light source (1347a, 1347c) configured to cooperate with at least a first optical fiber so as to emit at least one light signal to the control device (1310), and the reception module ( 1347g) comprising at least one optical sensor (1347b, 1347d) configured to cooperate with at least one second optical fiber so as to receive at least one light signal from the driver (1310) to at least control the electric motor.

14. Propulsion system (1000) according to the preceding claim wherein the light source (1347a, 1347c) is configured to emit at least one light signal, the first optical fiber being configured to transport said light signal to the control device (1310). ), the second optical fiber being configured to carry said signal light from the control device (1310) to the optical sensor (1347b, 1347d), the control device (1310) being configured to allow the user (2000) to circulate or not said light signal from the light source ( 1347a, 1347c) to the optical sensor (1347b, 1347d) to at least control the electric motor.

A propulsion system (1000) according to any one of the preceding claims wherein the propellant (1340) is configured to operate in a first mode and a second mode, the first mode corresponding to a first direction of rotation of the first mode. helix (1344) and the second mode of operation corresponding to a second direction of rotation of the helix (1344) different from the first direction of rotation.

16. Propulsion system (1000) according to any one of the ten preceding claims wherein the at least one water inlet (1342, 1342b) comprises at least one flap (1342c) disposed at an angle less than or equal to 45 ° relative to the direction of extension of the motor shaft (1344a).

17. A propulsion system (1000) according to any of the preceding eleven claims comprising at least one emergency stop actuator (1312) configured to stop the propulsion system (1000) by closing the water inlet ( 1342, 1342a, 1342b) of the thruster (1340) and / or the water outlet (1345) of the thruster (1340).

18. propulsion system (1000) according to any one of the twelve preceding claims comprising at least one wire element (1700) detachable and secured to the user (2000) when the latter is in the propulsion phase, this wire element ( 1700) being configured to control stopping the propulsion of the propulsion system (1000) as soon as it is detached from the propulsion system (1000).

19. Propulsion system (1000) according to any one of the thirteen preceding claims comprising at least one protective cover, preferably removable, configured to allow the removable attachment of the thruster (1340) to the propulsion system (1000).

The propulsion system (1000) of any preceding claim wherein the propulsion device (1300) comprises a first and a second propellant (1340), the first and second propellant (1340) being configured to be interchangeable one relative to the other.

21. propulsion system (1000) according to the preceding claim wherein the first and the second thruster (1340) are configured to be driven by the user (2000) independently of one another.

The propulsion system (1000) according to any one of the preceding claims comprising at least one compartment (1610, 1620) having a volume configured to include at least the respiratory power supply device (1600), and wherein the device Respiratory power supply (1600) is removable.

The propulsion system (1000) according to any one of the preceding claims comprising at least one compartment (1610, 1620) having a volume configured to comprise at least the respiratory power supply device (1600), and wherein the device Respiratory nutrition (1600) is fixed and includes at least one rechargeable respiratory fluid reservoir.

24. Propulsion system (1000) according to any one of the preceding claims comprising at least one expander (1630, 1640) connected to the respiratory supply device (1600) and disposed outside the envelope formed by the wall external (1,100).

25. A propulsion system (1000) according to any one of the preceding claims comprising at least one gripping device (1200) arranged in part at least, preferably entirely, on the outer wall (1 100) so as to allow the (2000) manually, and preferably entirely, lift the propulsion system (1000).

26. propulsion system (1000) according to any one of the preceding claims comprising at least one gripping device (1200) disposed at least in part, preferably entirely, on the outer wall (1 100) and at least one wheel ( 1210), preferably at least two wheels (1210), the gripper (1200) and the wheel (1210), preferably the two wheels (1210), are configured to allow movement of the propulsion system (1000) in Earth environment by traction of the propulsion system (1000) by the user (2000).

27. Propulsion system (1000) according to the preceding claim configured to have a terrestrial parking position in which the propulsion system (1000) rests on the wheel (1210), preferably on the two wheels (1210), and on at least one support zone.

28. Propulsion system (1000) according to the preceding claim comprising at least two wheels (1210) disposed at least 30cm from each other relative to their center of rotation.

29. propulsion system (1000) according to any one of the preceding claims comprising at least one rope comprising at least one node and being secured to the propulsion system (1000) and being configured to be windable at a portion of the outer wall (1 100).

30. propulsion system (1000) according to any one of the preceding claims comprising at least one retractable gripping element (1220) comprising at least one handle (1221) integral with at least one rope (1222) being integral with the system of propulsion (1000) and at least one biasing member, and wherein when the retractable gripping member (1220) is in the retracted position, the cord (1222) is located within the envelope formed by the outer wall (1 100), and wherein when the retractable grasping member (1220) is in the extended position, the rope (1222) is at least partially at the outside of the shell formed by the outer wall (1100). ), and wherein the biasing member is configured to automatically move the retractable grasping member (1220) from said extended position to said retracted position.

31. propulsion system (1000) according to any one of the preceding claims comprising at least one compartment (1610, 1620) intended to accommodate at least a portion of the user's diving equipment (2000), the diving equipment being taken from at least: mask, snorkel, fins, wetsuit, camera, dive computer.

32. propulsion system (1000) according to any one of the preceding claims comprising at least one compartment (1610, 1620) comprising at least one locking device selected from at least: a lock, a key lock, a lock code , a wireless recognition lock.

33. A propulsion system (1000) according to any one of the preceding claims comprising at least one additional propulsion device (1400) comprising at least one outlet (1410) of said respiratory fluid directed outwardly of the outer wall (1,100). ) and from the respiratory power supply (1600).

34. Propulsion system (1000) according to any one of the preceding claims comprising at least one device for securing the propulsion system (1000) to the user (2000).

35. propulsion system (1000) according to any one of the preceding claims comprising at least one display device (1900), preferably arranged in part at least on the outer wall (1 100).