WO2017221117A1 - Sail propulsion element comprising an inflatable sail with a symmetrical profile - Google Patents

Sail propulsion element comprising an inflatable sail with a symmetrical profile Download PDF

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Publication number
WO2017221117A1
WO2017221117A1 PCT/IB2017/053588 IB2017053588W WO2017221117A1 WO 2017221117 A1 WO2017221117 A1 WO 2017221117A1 IB 2017053588 W IB2017053588 W IB 2017053588W WO 2017221117 A1 WO2017221117 A1 WO 2017221117A1
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WO
WIPO (PCT)
Prior art keywords
sail
cavity
mast
profile
inflatable
Prior art date
Application number
PCT/IB2017/053588
Other languages
French (fr)
Inventor
Laurent De Kalbermatten
Edouard Kessi
Original Assignee
Laurent De Kalbermatten
Edouard Kessi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Laurent De Kalbermatten, Edouard Kessi filed Critical Laurent De Kalbermatten
Priority to ES17743078T priority Critical patent/ES2885864T3/en
Priority to EP17743078.2A priority patent/EP3475164B1/en
Priority to DK17743078.2T priority patent/DK3475164T3/en
Publication of WO2017221117A1 publication Critical patent/WO2017221117A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/08—Connections of sails to masts, spars, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H9/00—Marine propulsion provided directly by wind power
    • B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
    • B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
    • B63H9/061—Rigid sails; Aerofoil sails
    • B63H9/0615—Inflatable aerofoil sails

Definitions

  • the present invention is in the field of vane propulsion.
  • Inflatable sails of the state of the art have several disadvantages.
  • the sail is only inflated initially. In this configuration it is not possible to compensate for any air leaks inside the sail.
  • the sail is inflated passively, by introducing air (wind) permanently in the sail. This configuration, however, has the disadvantage of not having initially a sufficiently inflated sail, especially when the wind is weak or nonexistent.
  • the vane propulsion element according to the present invention overcomes the aforementioned problems.
  • the element comprises an inflatable sail consisting essentially of two adjacent surfaces substantially sealed and interconnected on their periphery, forming in this way at least one cavity; the element further comprising a conduit disposed between the interior and exterior of the cavity and means for injecting air therein; the element being characterized in that the sail, once inflated, has a profile that remains permanently symmetrical, regardless of the displacement of the element, the direction or intensity of the wind.
  • the element also comprises means for withdrawing air from the cavity, thus making it possible to regulate the pressure inside the cavity. These means also make it possible to empty the air which is in the cavity, prior to the storage of the sail or if it is desired to reduce the surface of the sail.
  • the surfaces are rigid.
  • the air injection means (eg a turbine) operate continuously, so as to continuously inject a flow of air through at least one orifice between the two adjacent surfaces in order to move away from one another by inflation and put them in tension between multiple transverse connecting elements giving the wing once inflated its final plane shape with in its thickness the shape of a carrier aerodynamic profile.
  • the pressure managed by the air injection means can be very low, typically of a few 100 Pa. It therefore requires very little energy to operate.
  • the profile thus obtained is substantially symmetrical, which allows the wing to operate indifferently in both directions of advancement with respect to the wind.
  • the pressure generated by the air injection means can be regulated so as to be always sufficient for the wing to acquire and maintain its shape in plan and in thickness in zero wind and or strong and turbulent.
  • the invention also relates to a vane propulsion vehicle, e.g. ex. a sailboat, comprising a base and one or more propulsion propulsion elements as described above.
  • a vane propulsion vehicle e.g. ex. a sailboat
  • Each vane propulsion element is associated with a mast which passes through the cavity of the element.
  • the aerodynamic forces produced by the flow of air around the profile are resumed along the rigging, at a location at the level of the transverse elements, not on the front of the profile, but substantially in the center of thrust aerodynamic which is located on the axis of symmetry of the profile, substantially to 25% of its front end, thus giving the wing a substantially neutral behavior at all operating speeds.
  • the sail is flexible, but it can also be rigid, as indicated above.
  • Any air injection system suitable for the intended purpose can be used. He can p. ex. be a turbine powered by a battery.
  • the mast can retract along its length (telescopic mast), which allows the vehicle to cross obstacles such as bridges or reduce the sail area in strong wind.
  • Figure 1 shows a vane propulsion element according to the invention, in the operating position.
  • Figure 2 shows the element of Figure 1, but in the rest position.
  • Figure 3 shows a front view of the element of Figure 1.
  • Figure 4 shows a top view of the element of Figure 1.
  • Figures 5A to 5D show different operating situations with respect to wind direction.
  • Figure 6 illustrates a distribution of the resulting forces acting on the sail for a given wind angle which corresponds to the position of Figure 5B
  • Figure 7 shows a vane propulsion element according to the invention, with a reduced surface.
  • FIG. 1 represents a sailboat 1 mainly comprising a hull 3, a mast 4 and a sail 2 consisting of a plurality of cells 5 interconnected by orifices (not shown), the set of cells 5 forming a single cavity 8.
  • a partial boom 12 connects the mast 4 to the sail 2. Its dimensions are small and it is not necessary that it is rigid because unlike the terminals of the state of the art which are also used to put the sail in tension, its only function is to make easier the rotation of the sail 2 around the mast 4. In fact, in the context of the present invention, it is not necessary to equip the boat with a boom ( partial or normal).
  • the sail 2 is preferably permanently inflated by means of a turbine 6 disposed in the lower part of the sail 2.
  • a duct 1 1 connects the turbine with the interior of the cavity 8.
  • Figure 2 shows the sailboat of Figure 1 but with the sail 2 deflated. This configuration is obtained following the stopping of the turbine 6. The deflation can be accentuated if the operation of the turbine is reversed to induce a vacuum inside the cavity 8.
  • FIG. 3 represents a front view of the sailboat of FIG. 1.
  • FIG. 5 the direction of the wind is represented by an arrow.
  • FIG. 5A the wind is in front, with respect to the hull and the sail, the boat is stopped.
  • FIG 5 D the wind is back from the hull.
  • the sail 2 is oriented so as to benefit from a thrust force.
  • the sail 2 illustrated in Figure 7 to a reduced area. More precisely, its lower part is deflated.
  • the length of the mast 4 can be fixed or variable. She can p. ex. be reduced by means of a telescopic mast.
  • the sail in all the aforementioned positions, the sail always has a symmetrical profile. This configuration has the particular advantage of reducing the energy to spend to maintain the sail in the desired orientation.
  • the pressure inside the cavity can be regulated continuously.
  • the sail By increasing it, the sail is more tense and solid. This configuration can be very useful during strong wave movements or control of the sail's twist. By decreasing it, the volume of the cavity and the surface of the sail can be reduced.
  • the air inlet can be located in any place, p. ex. through the mast when the latter passes through the cavity. In this case, filling and emptying are done through the mast.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)

Abstract

A sail propulsion element comprising an inflatable sail (2) consisting essentially of two substantially sealed adjacent surfaces (9, 10) linked to each other on the perimeter of same, thus together forming a recess (8); the element further comprising a conduit (11) disposed between the inside and the outside of the recess (8) and means for injecting air into the latter; characterised by the fact that the sail (2), once inflated, has a profile that remains permanently symmetric, regardless of the movement of the element, or the direction or strength of the wind.

Description

ELEMENT DE PROPULSION VELIQUE COMPRENANT UNE VOILE VELIC PROPULSION ELEMENT COMPRISING A SAIL
GONFLABLE A PROFIL SYMETRIQUE INFLATABLE WITH SYMMETRIC PROFILE
Domaine de l'invention Field of the invention
La présente invention se situe dans le domaine de la propulsion vélique.  The present invention is in the field of vane propulsion.
Elle concerne plus précisément une voile gonflable. It relates more precisely an inflatable sail.
Etat de la technique State of the art
L'utilisation d'éléments gonflables pour la propulsion vélique est connue. Voir en particulier les publications brevets suivantes : US 5 931 109, US 5 775 249, US 5 671 690, EP 2 202 144 A1 et FR 3 008 382 A1 .  The use of inflatable elements for vane propulsion is known. See in particular the following patent publications: US 5,931,109, US 5,775,249, US 5,671,690, EP 2,202,144 A1 and FR 3,008,382 A1.
Les voiles gonflables de l'état de la technique comportent cependant plusieurs inconvénients. Dans certains cas la voile est seulement gonflée initialement. Dans cette configuration il n'est pas possible de compenser des éventuelles fuites d'air à l'intérieur de la voile. Dans d'autres cas, la voile est gonflée passivement, par introduction d'air (vent) en permanence dans la voile. Cette configuration présente toutefois l'inconvénient de ne pas avoir au départ une voile suffisamment gonflée, surtout lorsque le vent est faible, voire inexistant. Description générale de l'invention  Inflatable sails of the state of the art, however, have several disadvantages. In some cases the sail is only inflated initially. In this configuration it is not possible to compensate for any air leaks inside the sail. In other cases, the sail is inflated passively, by introducing air (wind) permanently in the sail. This configuration, however, has the disadvantage of not having initially a sufficiently inflated sail, especially when the wind is weak or nonexistent. General description of the invention
L'élément de propulsion vélique selon la présente invention permet de remédier aux problèmes précités.  The vane propulsion element according to the present invention overcomes the aforementioned problems.
Il comprend une voile gonflable constituée essentiellement de deux surfaces adjacentes sensiblement étanches et reliées entre elles sur leur pourtour, formant de la sorte entre elles au moins une cavité ; l'élément comprenant en outre un conduit disposé entre l'intérieur et l'extérieur de la cavité et des moyens pour injecter de l'air dans cette dernière ; l'élément se caractérisant par le fait que la voile, une fois gonflée, présente un profil qui reste en permanence symétrique, indépendamment du déplacement de l'élément, de la direction ou de l'intensité du vent. Selon une variante de l'invention l'élément comprend également des moyens pour retirer de l'air de la cavité, rendant ainsi possible une régulation de la pression à l'intérieure de celle-ci. Ces moyens permettent également de vider l'air qui se trouve dans la cavité, préalablement au rangement de la voile ou si l'on souhaite diminuer la surface de la voile. It comprises an inflatable sail consisting essentially of two adjacent surfaces substantially sealed and interconnected on their periphery, forming in this way at least one cavity; the element further comprising a conduit disposed between the interior and exterior of the cavity and means for injecting air therein; the element being characterized in that the sail, once inflated, has a profile that remains permanently symmetrical, regardless of the displacement of the element, the direction or intensity of the wind. According to a variant of the invention, the element also comprises means for withdrawing air from the cavity, thus making it possible to regulate the pressure inside the cavity. These means also make it possible to empty the air which is in the cavity, prior to the storage of the sail or if it is desired to reduce the surface of the sail.
Selon une autre variante de l'invention, les surfaces sont rigides. According to another variant of the invention, the surfaces are rigid.
De préférence, les moyens d'injection d'air (p. ex. une turbine) fonctionnent en continu, de sorte à injecter en permanence un flux d'air au travers d'au moins un orifice entre les 2 surfaces adjacentes afin de les écarter l'une de l'autre par gonflage et de les mettre en tension entre des éléments de liaison transversaux multiples conférant à la voilure une fois gonflée sa forme en plan définitive avec dans son épaisseur la forme d'un profil aérodynamique porteur. Avantageusement la pression gérée par les moyens d'injection d'air peut être très faible, typiquement de quelques 100 Pa. Elle ne nécessite donc que très peu d'énergie pour fonctionner. Preferably, the air injection means (eg a turbine) operate continuously, so as to continuously inject a flow of air through at least one orifice between the two adjacent surfaces in order to move away from one another by inflation and put them in tension between multiple transverse connecting elements giving the wing once inflated its final plane shape with in its thickness the shape of a carrier aerodynamic profile. Advantageously, the pressure managed by the air injection means can be very low, typically of a few 100 Pa. It therefore requires very little energy to operate.
Le profil ainsi obtenu est sensiblement symétrique, ce qui permet à la voilure d'opérer indifféremment dans les deux sens d'avancement par rapport au vent. The profile thus obtained is substantially symmetrical, which allows the wing to operate indifferently in both directions of advancement with respect to the wind.
La pression générée par les moyens d'injection d'air peut être régulée de façon à être toujours suffisante pour que la voilure acquiert et maintienne sa forme en plan et en épaisseur par vent nul et ou forts et turbulents. The pressure generated by the air injection means can be regulated so as to be always sufficient for the wing to acquire and maintain its shape in plan and in thickness in zero wind and or strong and turbulent.
L'invention concerne également un véhicule à propulsion vélique, p. ex. un voilier, comportant une base et un ou plusieurs éléments de propulsion vélique tels que décrits précédemment. A chaque élément de propulsion vélique est associé un mât qui traverse la cavité de l'élément. Dans cette configuration les forces aérodynamiques produites par l'écoulement de l'air autour du profil sont reprises le long du gréement, à un endroit situé au niveau des éléments transversaux ,ηοη pas sur l'avant du profil, mais sensiblement au centre de poussée aérodynamique qui est situé sur l'axe de symétrie du profil, sensiblement vers 25 % de son extrémité avant, conférant ainsi à la voilure un comportement sensiblement neutre à toutes les allures de fonctionnement. De préférence la voile est souple, mais elle peut également être rigide, comme indiqué précédemment. The invention also relates to a vane propulsion vehicle, e.g. ex. a sailboat, comprising a base and one or more propulsion propulsion elements as described above. Each vane propulsion element is associated with a mast which passes through the cavity of the element. In this configuration the aerodynamic forces produced by the flow of air around the profile are resumed along the rigging, at a location at the level of the transverse elements, not on the front of the profile, but substantially in the center of thrust aerodynamic which is located on the axis of symmetry of the profile, substantially to 25% of its front end, thus giving the wing a substantially neutral behavior at all operating speeds. Preferably the sail is flexible, but it can also be rigid, as indicated above.
N'importe quel système d'injection d'air adapté à l'usage recherché peut être utilisé. Il peut p. ex. s'agir d'une turbine alimentée par une batterie.  Any air injection system suitable for the intended purpose can be used. He can p. ex. be a turbine powered by a battery.
Avantageusement le mât peut se rétracter selon sa longueur (mât télescopique), ce qui permet au véhicule de franchir des obstacles tels que ponts ou réduire la surface vélique par vent fort. Advantageously, the mast can retract along its length (telescopic mast), which allows the vehicle to cross obstacles such as bridges or reduce the sail area in strong wind.
Description détaillée de l'invention Detailed description of the invention
L'invention est décrite de manière plus détaillée dans ce chapitre, notamment au moyen d'exemples et de figures qui sont brièvement résumées comme suit :  The invention is described in more detail in this chapter, particularly by means of examples and figures which are briefly summarized as follows:
La Figure 1 représente un élément de propulsion vélique selon l'invention, en position de fonctionnement. Figure 1 shows a vane propulsion element according to the invention, in the operating position.
La Figure 2 représente l'élément de la figure 1 , mais en position de repos.  Figure 2 shows the element of Figure 1, but in the rest position.
La Figure 3 représente une vue de face de l'élément de la figure 1.  Figure 3 shows a front view of the element of Figure 1.
La Figure 4 représente une vue de dessus de l'élément de la figure 1.  Figure 4 shows a top view of the element of Figure 1.
Les Figures 5A à 5D montrent différentes situations de fonctionnement par rapport à la direction du vent.  Figures 5A to 5D show different operating situations with respect to wind direction.
La Figure 6 illustre une répartition des forces résultantes qui agissent sur la voile pour une incidence du vent donnée qui correspond à la position de la figure 5B Figure 6 illustrates a distribution of the resulting forces acting on the sail for a given wind angle which corresponds to the position of Figure 5B
Figure 7 représente un élément de propulsion vélique selon l'invention, avec une surface réduite. Figure 7 shows a vane propulsion element according to the invention, with a reduced surface.
Les références numériques suivantes sont utilisées dans les figures : The following numerical references are used in the figures:
1 Voilier  1 Sailboat
2 Voile  2 sailing
3 Coque  3 hull
4 Mât  4 Mast
5 Cellule  5 Cell
6 Turbine 7. Axe de symétrie du profil 6 Turbine 7. Profile symmetry axis
8. Cavité  8. Cavity
9. 1 ère surface  9. 1st surface
10.2e surface 10.2 th surface
1 1 . Conduit  1 1. pipe
12. Bôme  12. Boom
L'exemple de la figure 1 représente un voilier 1 comprenant principalement une coque 3, un mât 4 et une voile 2 constituée d'une pluralité de cellules 5 reliées entre elles par des orifices (non-illustré), l'ensemble des cellules 5 formant une cavité unique 8. Une bôme partielle 12 relie le mât 4 à la voile 2. Ses dimensions sont faibles et il n'est pas nécessaire qu'elle soit rigide car contrairement aux bornes de l'état de la technique qui servent également à mettre la voile en tension, sa seule fonction est de rendre plus aisée la rotation de la voile 2 autour du mât 4. En fait, dans le cadre la présente invention, il n'est pas nécessaire de doter le voilier d'une bôme (partielle ou normale). The example of FIG. 1 represents a sailboat 1 mainly comprising a hull 3, a mast 4 and a sail 2 consisting of a plurality of cells 5 interconnected by orifices (not shown), the set of cells 5 forming a single cavity 8. A partial boom 12 connects the mast 4 to the sail 2. Its dimensions are small and it is not necessary that it is rigid because unlike the terminals of the state of the art which are also used to put the sail in tension, its only function is to make easier the rotation of the sail 2 around the mast 4. In fact, in the context of the present invention, it is not necessary to equip the boat with a boom ( partial or normal).
La voile 2 est de préférence gonflée en permanence au moyen d'une turbine 6 disposée dans la partie inférieure de la voile 2. Un conduit 1 1 relie la turbine avec l'intérieur de la cavité 8.  The sail 2 is preferably permanently inflated by means of a turbine 6 disposed in the lower part of the sail 2. A duct 1 1 connects the turbine with the interior of the cavity 8.
La figure 2 représente le voilier de la figure 1 mais avec la voile 2 dégonflée. Cette configuration est obtenue consécutivement à l'arrêt de la turbine 6. Le dégonflement peut être accentué si le fonctionnement de la turbine est inversé pour induire un vide à l'intérieur de la cavité 8. Figure 2 shows the sailboat of Figure 1 but with the sail 2 deflated. This configuration is obtained following the stopping of the turbine 6. The deflation can be accentuated if the operation of the turbine is reversed to induce a vacuum inside the cavity 8.
La figure 3 représente une vue de face du voilier de la figure 1. FIG. 3 represents a front view of the sailboat of FIG. 1.
Il convient de relever que sur les figures 1 à 3 , les surfaces 9, 10 formant la voile sont transparentes, de manière à visualiser le mât 4. La figure 4 fait particulièrement bien ressortir la symétrie du profil de la voile 2.  It should be noted that in Figures 1 to 3, the surfaces 9, 10 forming the sail are transparent, so as to view the mast 4. Figure 4 particularly shows the symmetry of the profile of the sail 2.
Sur la figure 5 la direction du vent est représentée par une flèche. Sur la figure 5A le vent est de face, par rapport à la coque et à la voile ,1e bateau est arrêté. In Figure 5 the direction of the wind is represented by an arrow. In FIG. 5A, the wind is in front, with respect to the hull and the sail, the boat is stopped.
Sur la figure 5B le vent de côté (par rapport à la coque, et légèrement de côté par rapport à la voile). Dans cette configuration il a pour conséquence d'induire une forte poussée vers l'avant, comme indiqué sur la figure 6.  In Figure 5B the wind side (relative to the hull, and slightly side to the sail). In this configuration it has the effect of inducing a strong forward thrust, as shown in FIG.
Sur la figure 5C le vent est légèrement de côté, ce qui induit une remontée à allure de prés. In Figure 5C the wind is slightly off, which induces a rise to pace of meadows.
Sur la figure 5 D le vent est arrière par rapport à la coque. La voile 2 est orientée de manière à bénéficier d'une force de poussée. La voile 2 illustrée sur la figure 7 à une surface réduite. Plus précisément, sa partie inférieure est dégonflée. La longueur du mât 4 peut être fixe ou variable. Elle peut p. ex. être réduite au moyen d'un mât télescopique.  In Figure 5 D the wind is back from the hull. The sail 2 is oriented so as to benefit from a thrust force. The sail 2 illustrated in Figure 7 to a reduced area. More precisely, its lower part is deflated. The length of the mast 4 can be fixed or variable. She can p. ex. be reduced by means of a telescopic mast.
Il convient de relever que dans toutes les positions précitées, la voile présente toujours un profil symétrique. Cette configuration offre notamment l'avantage de réduire l'énergie à dépenser pour maintenir la voile selon l'orientation souhaitée. It should be noted that in all the aforementioned positions, the sail always has a symmetrical profile. This configuration has the particular advantage of reducing the energy to spend to maintain the sail in the desired orientation.
La pression à l'intérieur de la cavité peut être régulée en permanence. The pressure inside the cavity can be regulated continuously.
En l'augmentant, la voile est plus tendue et solide. Cette configuration peut être très utile lors de forts mouvement de houle ou de contrôle du twist de la voile. En la diminuant, le volume de la cavité et la surface de la voile peuvent être réduits. By increasing it, the sail is more tense and solid. This configuration can be very useful during strong wave movements or control of the sail's twist. By decreasing it, the volume of the cavity and the surface of the sail can be reduced.
La présente invention ne se limite bien évidemment pas aux exemples précités mais couvre toute variante comprise dans l'objet des revendications. Ainsi, l'entrée d'air peut être localisée en n'importe quel endroit, p. ex. à travers le mât lorsque ce dernier traverse la cavité. Dans ce cas de figure, le remplissage et le vidange sont réalisés à travers le mât. The present invention is obviously not limited to the aforementioned examples but covers any variant included in the subject of the claims. Thus, the air inlet can be located in any place, p. ex. through the mast when the latter passes through the cavity. In this case, filling and emptying are done through the mast.

Claims

Revendications  claims
Elément de propulsion vélique comprenant une voile gonflable (2) constituée essentiellement de deux surfaces adjacentes (9, 10) sensiblement étanches et reliées entre elles sur leur pourtour, formant de la sorte entre elles au moins une cavité (8) fermée; l'élément comprenant en outre un conduit (1 1) disposé entre l'intérieur et l'extérieur de la cavité (8) et des moyens pour injecter de l'air dans cette dernière ; Vela propulsion element comprising an inflatable sail (2) consisting essentially of two adjacent surfaces (9, 10) substantially sealed and interconnected on their periphery, thus forming between them at least one cavity (8) closed; the element further comprising a conduit (1 1) disposed between the inside and the outside of the cavity (8) and means for injecting air therein;
caractérisé par le fait que la voile (2), une fois gonflée, présente un profil qui reste en permanence symétrique, indépendamment du déplacement de l'élément, de la direction ou de l'intensité du vent. characterized in that the sail (2), when inflated, has a profile that remains permanently symmetrical, regardless of the displacement of the element, the direction or intensity of the wind.
Elément selon la revendication 1 comprenant des moyens pour retirer de l'air de la cavité (8). An element according to claim 1 comprising means for removing air from the cavity (8).
Elément selon la revendication 1 ou 2 dans lequel lesdites surfaces adjacentes (9,10) sont rigides.  An element according to claim 1 or 2 wherein said adjacent surfaces (9,10) are rigid.
Véhicule à propulsion vélique (1) comprenant un élément selon l'une quelconque des revendications précédentes, une base (3) et un mât (4) rendu solidaire de ladite base (3), caractérisé par le fait que le mât (4) est disposé à l'intérieur de la cavité (4).  Vessel powered vehicle (1) comprising an element according to any one of the preceding claims, a base (3) and a mast (4) secured to said base (3), characterized in that the mast (4) is disposed within the cavity (4).
Véhicule à propulsion vélique (1) selon la revendication 4 dans lequel le mât (4) se situe sur l'axe de symétrie du profil (7), à environ 25 % de son extrémité avant.  Vessel propulsion vehicle (1) according to claim 4 wherein the mast (4) is located on the axis of symmetry of the profile (7), about 25% of its front end.
PCT/IB2017/053588 2016-06-22 2017-06-16 Sail propulsion element comprising an inflatable sail with a symmetrical profile WO2017221117A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES17743078T ES2885864T3 (en) 2016-06-22 2017-06-16 Sail propulsion element comprising an inflatable sail with a symmetrical profile
EP17743078.2A EP3475164B1 (en) 2016-06-22 2017-06-16 Sail propulsion element comprising an inflatable sail with a symmetrical profile
DK17743078.2T DK3475164T3 (en) 2016-06-22 2017-06-16 SAIL PROPULSION ELEMENT INCLUDING AN INFLATABLE SAIL WITH A SYMMETRIC PROFILE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IB2016053713 2016-06-22
IBPCT/IB2016/053713 2016-06-22

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EP (1) EP3475164B1 (en)
DK (1) DK3475164T3 (en)
ES (1) ES2885864T3 (en)
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EP2202144A1 (en) 2007-04-27 2010-06-30 Ignacio Bermúdez Sánchez Rigid sail with configurable profile
FR3008382A1 (en) 2013-07-12 2015-01-16 Jean Luc Hauser AIR-FAN-TYPE SAIL FOR VELIC PROPULSION ENGINE

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DE463701C (en) * 1928-08-02 Otto Freistadt Profile sail
FR1464877A (en) * 1965-11-23 1967-01-06 Conservatoire Nat Arts Improvements to vehicles powered by natural wind
FR2432431A1 (en) * 1978-08-02 1980-02-29 Soulie Wanceslas Inflatable sail mounted on horizontal swivel - is supported by guys and has number of connecting segments covered by inelastic membrane
US5671690A (en) 1995-12-08 1997-09-30 Trost; Michael D. Variable camber inflatable airfoil
US5775249A (en) 1996-04-08 1998-07-07 Samuel; David B. Adjustable camber inflatable sail
WO1998000333A1 (en) * 1996-07-01 1998-01-08 Fondazione Telethon Inflatable boat for sport and leisure
US5931109A (en) 1997-06-17 1999-08-03 Altosail Limited Sail
WO2005082709A1 (en) * 2004-02-20 2005-09-09 Navis S.R.L. Improved sail system
EP2202144A1 (en) 2007-04-27 2010-06-30 Ignacio Bermúdez Sánchez Rigid sail with configurable profile
FR3008382A1 (en) 2013-07-12 2015-01-16 Jean Luc Hauser AIR-FAN-TYPE SAIL FOR VELIC PROPULSION ENGINE

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WO2022248812A1 (en) 2021-05-28 2022-12-01 Compagnie Generale Des Etablissements Michelin Sail propulsion element, sail-propelled vehicle
WO2022248811A1 (en) 2021-05-28 2022-12-01 Compagnie Generale Des Etablissements Michelin Sail propulsion element, sail-propelled vehicle
WO2022248814A1 (en) 2021-05-28 2022-12-01 Compagnie Generale Des Etablissements Michelin Sail-driven vehicle
WO2022248813A1 (en) 2021-05-28 2022-12-01 Compagnie Generale Des Etablissements Michelin Sail propulsion element, sail-propelled vehicle
FR3123309A1 (en) 2021-05-28 2022-12-02 Compagnie Generale Des Etablissements Michelin Sail Propulsion Element, Sail Propelled Vehicle
FR3123308A1 (en) 2021-05-28 2022-12-02 Compagnie Generale Des Etablissements Michelin Sail Propulsion Element, Sail Propulsion Vehicle
FR3123307A1 (en) 2021-05-28 2022-12-02 Compagnie Generale Des Etablissements Michelin Wind-powered vehicle
FR3123310A1 (en) 2021-05-28 2022-12-02 Compagnie Generale Des Etablissements Michelin Sail Propulsion Element, Sail Propelled Vehicle
BE1031105A1 (en) 2022-12-05 2024-06-27 Antoine Rubbers Rigid inflatable sail

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EP3475164B1 (en) 2021-06-02

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