EP3687890B1 - Motor boat with foils which are retractable by tilting - Google Patents

Motor boat with foils which are retractable by tilting Download PDF

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Publication number
EP3687890B1
EP3687890B1 EP18786857.5A EP18786857A EP3687890B1 EP 3687890 B1 EP3687890 B1 EP 3687890B1 EP 18786857 A EP18786857 A EP 18786857A EP 3687890 B1 EP3687890 B1 EP 3687890B1
Authority
EP
European Patent Office
Prior art keywords
foils
boat
load
bearing structure
tilting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18786857.5A
Other languages
German (de)
French (fr)
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EP3687890A1 (en
EP3687890B8 (en
Inventor
Arthur ROZAND
Alaric LUKOWSKI
Stéphane DYEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enata Holding Foundation
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Enata Investment Corp Pte Ltd
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 Enata Investment Corp Pte Ltd filed Critical Enata Investment Corp Pte Ltd
Priority to HRP20230314TT priority Critical patent/HRP20230314T1/en
Priority to SI201830886T priority patent/SI3687890T1/en
Publication of EP3687890A1 publication Critical patent/EP3687890A1/en
Publication of EP3687890B1 publication Critical patent/EP3687890B1/en
Application granted granted Critical
Publication of EP3687890B8 publication Critical patent/EP3687890B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/26—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type having more than one hydrofoil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
    • B63B1/30—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils retracting or folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
    • B63B2001/281—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils movable about an axis substantially parallel to the flow direction

Definitions

  • the present invention relates to motorized boats with foils.
  • the position of the foils in relation to the supporting structure does not vary, whether the boat is stationary, moving at low or high speed, the force of the wind or the height of the waves is pronounced or not.
  • the patent application WO2016/0094090 discloses a principle making it possible to satisfy two precise distinct geometric configurations, namely (i) the coincidence with the shape of the hull of the foils in the raised position, and (ii) the positioning of the foils in the low position which makes it possible to naturally obtain the autostability of the hydrofoil in flight, whether in roll or pitch.
  • EP 3 216 689 US 2012 325 135 , KR 2016 00005 U Where EP 2 894 090 .
  • the state-of-the-art devices do not, however, allow the foils to be both above the waterline in a passive position, optimally integrated into the load-bearing structure, and far enough apart in the active position, eg at least twice the width of the boat. Such an arrangement would have the merit of increasing the natural stability of the boat while minimizing the size of the foils in the passive position.
  • the present invention notably offers the advantage of remedying the problem described in the previous chapter.
  • the foils In general, it consists of initially deploying the foils along a substantially horizontal trajectory and then tilting them in the direction of the body of water.
  • the invention relates more specifically to a motor boat comprising a carrier structure and at least one pair of similar foils arranged on each side of the carrier structure, each of said foils being defined by a wing and its support; the latter being retractable in the lower part of the structure and mounted to slide relative thereto; said foils being arranged so as to adopt at least two fixed positions, namely a so-called “active” position in which they are deployed in similar positions and a so-called “passive” position in which said supports are retracted into the supporting structure; characterized in that the boat is adapted so that the deployment of the foils comprises an initial displacement of the supports in a substantially horizontal direction, which moves away from the vertical median plane of the supporting structure, followed by a tilting around an axis parallel or substantially parallel to the main axis of the boat.
  • substantially horizontal direction it is necessary to understand a horizontal or nearly rectilinear trajectory, a slightly curved trajectory but almost merging with a horizontal direction, or any other project trajectory from a horizontal direction.
  • the invention offers in particular the advantage of reducing the size of the foils given that they can be positioned under the deck of the boat.
  • the foils are guided by two wedges adapted in that they allow the passage of rope sails and evolving twists.
  • the mechanical lift system for the foils comprises a screw jack secured to the supporting structure and to the foil simultaneously.
  • foil deployment mechanism described in this patent application can be combined with all the other characteristics described in the patent application.
  • WO 2016/009409 in particular the dynamic simulator.
  • the figure describes an embodiment in which the foils 2 are similar but not symmetrically identical.
  • the supports 4 are slightly asymmetrical so that they can be superposed in the support structure 1 in the passive position.
  • the figure illustrates three positions of the foils 2,2',2", i.e. the passive position 2, a transitional position 2' and the active position 2".
  • the wings 3 merge with the side walls of the support structure 1.
  • the distance between the ends of the wings 3" is at least equivalent to twice the width of the supporting structure 1.
  • the foils 2,2′,2′′ initially move along a slightly curved trajectory which moves away from the vertical median plane 5 of the supporting structure 1. There follows a tilting of the foils 2 '.2" around an axis 6 directed in a direction parallel to the main axis of the boat. During tilting, the free end 8 of each support 4 also undergoes a rotation around the axis 6.

Description

Domaine de l'inventionField of the invention

La présente invention concerne les bateaux motorisés à foils.The present invention relates to motorized boats with foils.

Etat de la techniqueState of the art

Le principe consistant à assurer l'équilibrage du poids d'un bateau par un effet de portance hydrodynamique produit par la vitesse de l'eau agissant sur des éléments en forme d'ailes immergées, semi-immergées ou traversant la surface de l'eau, par opposition à la seule utilisation de l'effet archimédien des volumes immergés, est relativement ancien. Dès le début du vingtième siècle il existe des bateaux à moteur équipés de ce genre de dispositif nommé foil. On connaît par ailleurs l'utilisation de foils dans le but de stabiliser en roulis ou en tangage des navires en configuration archimédienne. L'utilisation de foils améliore la performance des bateaux par l'augmentation de la vitesse et/ou la diminution de la consommation énergétique.The principle of ensuring the balancing of the weight of a boat by a hydrodynamic lift effect produced by the speed of the water acting on elements in the form of submerged, semi-submerged wings or crossing the surface of the water , as opposed to the sole use of the Archimedean effect of submerged volumes, is relatively old. From the beginning of the twentieth century there are motor boats equipped with this kind of device called foil. The use of foils is also known for the purpose of stabilizing in roll or in pitch ships in Archimedean configuration. The use of foils improves boat performance by increasing speed and/or reducing energy consumption.

Le brevet US 4 237 810 divulgue un bateau à moteur doté de foils.The patent US 4,237,810 discloses a motorboat with foils.

Sur ce bateau, et plus généralement sur les bateaux motorisés à foils, la position des foils par rapport à la structure porteuse ne varie pas, que le bateau soit à l'arrêt, se déplace à faible ou grande vitesse, que la force du vent ou la hauteur des vagues soit prononcée ou non.On this boat, and more generally on motorized boats with foils, the position of the foils in relation to the supporting structure does not vary, whether the boat is stationary, moving at low or high speed, the force of the wind or the height of the waves is pronounced or not.

D'autres brevets, tels que le brevet US 3 241 511 , divulguent des principes de bateaux à moteur et à foils avec système de rétractabilité des foils, par coulissement vertical ou par mécanismes divers de rotation. Ces systèmes permettent notamment de relativement réduire l'encombrement et la traînée des appendices lorsqu'ils ne sont pas utilisés.Other patents, such as the patent US 3,241,511 , disclose the principles of motor and foil boats with a foil retractability system, by vertical sliding or by various rotation mechanisms. These systems make it possible in particular to relatively reduce the bulk and the drag of the appendages when they are not in use.

La demande de brevet WO2016/0094090 divulgue un principe permettant de satisfaire deux configurations géométriques distinctes précises, à savoir (i) la coïncidence avec la forme de la coque des foils en position relevée, et (ii) le positionnement des foils en position basse qui permette d'obtenir naturellement l'autostabilité de l'hydrofoil en vol, que ce soit en roulis ou en tangage.The patent application WO2016/0094090 discloses a principle making it possible to satisfy two precise distinct geometric configurations, namely (i) the coincidence with the shape of the hull of the foils in the raised position, and (ii) the positioning of the foils in the low position which makes it possible to naturally obtain the autostability of the hydrofoil in flight, whether in roll or pitch.

D'autres exemples sont par exemple connus de EP 3 216 689 , US 2012 325 135 , KR 2016 00005 U ou EP 2 894 090 .Other examples are for example known from EP 3 216 689 , US 2012 325 135 , KR 2016 00005 U Where EP 2 894 090 .

Les dispositifs de l'état de la technique ne permettent cependant pas que les foils soient à la fois au-dessus de la ligne de flottaison en position passive, intégrés de façon optimale dans la structure porteuse, et suffisamment écartés en position active, p.ex. d'au moins deux fois la largeur du bateau. Une telle disposition aurait le mérite d'augmenter la stabilité naturelle du bateau tout en minimisant l'encombrement des foils en position passive.The state-of-the-art devices do not, however, allow the foils to be both above the waterline in a passive position, optimally integrated into the load-bearing structure, and far enough apart in the active position, eg at least twice the width of the boat. Such an arrangement would have the merit of increasing the natural stability of the boat while minimizing the size of the foils in the passive position.

Description de l'inventionDescription of the invention

La présente invention offre notamment l'avantage de remédier au problème décrit dans le chapitre précédent.The present invention notably offers the advantage of remedying the problem described in the previous chapter.

De manière générale, elle consiste à initialement déployer les foils le long d'une trajectoire sensiblement horizontale puis de les basculer en direction du plan d'eau.In general, it consists of initially deploying the foils along a substantially horizontal trajectory and then tilting them in the direction of the body of water.

L'invention concerne plus précisément un bateau à moteur comprenant une structure porteuse et au moins une paire de foils similaires disposés de chaque côté de la structure porteuse , chacun desdits foils étant défini par une aile et son support; ce dernier étant rétractable dans la partie inférieure de la structure et monté coulissant par rapport à celle-ci ; lesdits foils étant disposés de manière à adopter au moins deux positions fixes, à savoir une position dite « active » dans laquelle ils sont déployés dans des positions similaires et une position dite « passive » dans laquelle lesdits supports sont rétractés dans la structure porteuse; caractérisé par le fait que le bateau est adapté de manière à ce que le déploiement des foils comprenne un déplacement initial des supports selon une direction sensiblement horizontale, qui s'éloigne du plan médian vertical de la structure porteuse, suivi d'un basculement autour d'un axe parallèle ou sensiblement parallèle à l'axe principal du bateau.The invention relates more specifically to a motor boat comprising a carrier structure and at least one pair of similar foils arranged on each side of the carrier structure, each of said foils being defined by a wing and its support; the latter being retractable in the lower part of the structure and mounted to slide relative thereto; said foils being arranged so as to adopt at least two fixed positions, namely a so-called “active” position in which they are deployed in similar positions and a so-called “passive” position in which said supports are retracted into the supporting structure; characterized in that the boat is adapted so that the deployment of the foils comprises an initial displacement of the supports in a substantially horizontal direction, which moves away from the vertical median plane of the supporting structure, followed by a tilting around an axis parallel or substantially parallel to the main axis of the boat.

Par « direction sensiblement horizontale », il faut comprendre une trajectoire rectiligne horizontale ou presque, une trajectoire légèrement incurvée mais se confondant presque avec une direction horizontale, ou tout autre trajectoire projet d'une direction horizontale.By “substantially horizontal direction”, it is necessary to understand a horizontal or nearly rectilinear trajectory, a slightly curved trajectory but almost merging with a horizontal direction, or any other project trajectory from a horizontal direction.

Il convient de relever que l'invention offre notamment l'avantage de réduire l'encombrement des foils étant donné qu'ils peuvent être positionnés sous le pont du bateau.It should be noted that the invention offers in particular the advantage of reducing the size of the foils given that they can be positioned under the deck of the boat.

Selon un autre mode de réalisation de l'invention les foils sont guidés par deux cales adaptées en ce qu'elles permettent le passage de voiles de corde et vrillages évolutifs. Avantageusement le système de remontée mécanique des foils comporte un vérin à vis solidaire de structure porteuse et du foil simultanément.According to another embodiment of the invention, the foils are guided by two wedges adapted in that they allow the passage of rope sails and evolving twists. Advantageously, the mechanical lift system for the foils comprises a screw jack secured to the supporting structure and to the foil simultaneously.

De manière générale, le mécanisme de déploiement des foils décrit dans la présente demande de brevet peut être combiné avec toutes les autres caractéristiques décrites dans la demande de brevet WO 2016/009409 , en particulier le simulateur dynamique.In general, the foil deployment mechanism described in this patent application can be combined with all the other characteristics described in the patent application. WO 2016/009409 , in particular the dynamic simulator.

La figure décrit un exemple de réalisation dans lequel les foils 2 sont similaires mais pas symétriquement identiques. Les supports 4 sont légèrement dissymétriques de manière à pouvoir être superposés dans la structure porteuse 1 en position passive. La figure illustre trois positions des foils 2,2',2", soit la position passive 2, une position transitoire 2' et la position active 2".The figure describes an embodiment in which the foils 2 are similar but not symmetrically identical. The supports 4 are slightly asymmetrical so that they can be superposed in the support structure 1 in the passive position. The figure illustrates three positions of the foils 2,2',2", i.e. the passive position 2, a transitional position 2' and the active position 2".

En position passive, les ailes 3 se confondent avec les parois latérales de la structure porteuse 1.In the passive position, the wings 3 merge with the side walls of the support structure 1.

En position active, la distance entre les extrémités des ailes 3" est au moins équivalente à deux fois la largeur de la structure porteuse 1.In the active position, the distance between the ends of the wings 3" is at least equivalent to twice the width of the supporting structure 1.

Lors de la phase de déploiement les foils 2,2',2" se déplacent initialement le long d'une trajectoire légèrement incurvée qui s'éloigne du plan médian vertical 5 de la structure porteuse 1. S'en suit un basculement des foils 2',2" autour d'un axe 6 dirigé selon une direction parallèle à l'axe principal du bateau. Lors du basculement, l'extrémité libre 8 de chaque support 4 subit également une rotation autour de l'axe 6.During the deployment phase the foils 2,2′,2″ initially move along a slightly curved trajectory which moves away from the vertical median plane 5 of the supporting structure 1. There follows a tilting of the foils 2 '.2" around an axis 6 directed in a direction parallel to the main axis of the boat. During tilting, the free end 8 of each support 4 also undergoes a rotation around the axis 6.

Il va de soi que l'invention ne se limite pas aux exemples décrits et illustrés dans le présent document. Elle couvre n'importe quel mécanisme permettant de modifier la position des foils pendant la navigation tel que défini dans les revendications.It goes without saying that the invention is not limited to the examples described and illustrated in this document. It covers any mechanism making it possible to modify the position of the foils during navigation as defined in the claims.

Références numériques utilisées dans la figure :

1.
Structure porteuse
2.
Foil en position passive
2'.
Foil en position transitoire
2".
Foil en position active
3.
Aile en position passive
3'.
Aile en position transitoire
3".
Aile en position active
4.
Support en position passive
4'.
Support en position transitoire
4".
Support en position active
5.
Plan médian vertical
6.
Axe de basculement
7.
Extrémité libre de support
8.
Trajectoire d'extrémité libre de support
Numerical references used in the figure:
1.
Bearing structure
2.
Foil in passive position
2'.
Foil in transitional position
2".
Foil in active position
3.
Wing in passive position
3'.
Wing in transitional position
3".
Wing in active position
4.
Support in passive position
4'.
Support in transitional position
4".
Bracket in active position
5.
Vertical midplane
6.
Tilt axis
7.
Support free end
8.
Support free end path

Claims (4)

  1. A motor boat comprising a load-bearing structure (1) and at least one pair of similar foils (2, 2', 2") disposed on each side of the load-bearing structure (1), each of said foils (2, 2', 2") being defined by a wing (3, 3', 3") and its support (4, 4', 4"); the latter being retractable into the lower part of the structure (1) and slidably mounted relative thereto; said foils (2, 2', 2") being disposed so as to assume at least two fixed positions, namely a so-called "active" position in which they are deployed into similar positions and a so-called "passive" position in which said supports (4, 4', 4") are retracted into the load-bearing structure (1); characterised in that the boat is adapted so that deploying the foils (2, 2', 2") comprises initially moving the supports (4, 4') along a substantially horizontal distance, which moves away from the vertical median plane (5) of the load-bearing structure (1), followed by tilting about an axis (6) parallel or substantially parallel to the main axis of the boat.
  2. The motor boat according to claim 1, wherein the foils (2, 2', 2") are dissymmetrically deployed.
  3. The motor boat according to claim 1 or 2, wherein the substantially horizontal distance forms a slightly curved trajectory.
  4. A use of a motor boat as defined in any of the previous claims, characterized in that deploying the foils (2, 2', 2") comprises initially moving the supports (4, 4') along a substantially horizontal direction, which moves away from the vertical median plane (5) of the load-bearing structure (1), followed by tilting about an axis (6) parallel or substantially parallel to the main axis of the boat.
EP18786857.5A 2017-09-26 2018-09-12 Motor boat with foils which are retractable by tilting Active EP3687890B8 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
HRP20230314TT HRP20230314T1 (en) 2017-09-26 2018-09-12 Motor boat with foils which are retractable by tilting
SI201830886T SI3687890T1 (en) 2017-09-26 2018-09-12 Motor boat with foils which are retractable by tilting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17193090 2017-09-26
PCT/IB2018/056975 WO2019064106A1 (en) 2017-09-26 2018-09-12 Motor boat with foils which are retractable by tilting

Publications (3)

Publication Number Publication Date
EP3687890A1 EP3687890A1 (en) 2020-08-05
EP3687890B1 true EP3687890B1 (en) 2022-12-28
EP3687890B8 EP3687890B8 (en) 2023-04-12

Family

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EP18786857.5A Active EP3687890B8 (en) 2017-09-26 2018-09-12 Motor boat with foils which are retractable by tilting

Country Status (12)

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US (1) US11577806B2 (en)
EP (1) EP3687890B8 (en)
AU (1) AU2018343213A1 (en)
DK (1) DK3687890T3 (en)
ES (1) ES2941469T3 (en)
FI (1) FI3687890T3 (en)
HR (1) HRP20230314T1 (en)
LT (1) LT3687890T (en)
PL (1) PL3687890T3 (en)
PT (1) PT3687890T (en)
SI (1) SI3687890T1 (en)
WO (1) WO2019064106A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3101608B1 (en) * 2019-10-02 2021-09-10 Seair Foil seat for semi-rigid boat

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PL3687890T3 (en) 2023-05-22
ES2941469T3 (en) 2023-05-23
LT3687890T (en) 2023-04-25
DK3687890T3 (en) 2023-04-03
FI3687890T3 (en) 2023-04-18
US20200247505A1 (en) 2020-08-06
AU2018343213A1 (en) 2020-04-16
PT3687890T (en) 2023-03-31
EP3687890A1 (en) 2020-08-05
US11577806B2 (en) 2023-02-14
WO2019064106A1 (en) 2019-04-04
EP3687890B8 (en) 2023-04-12
SI3687890T1 (en) 2023-05-31
HRP20230314T1 (en) 2023-05-12

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