WO2015004342A1 - Voile de propulsion a profil en aile d'avion - Google Patents
Voile de propulsion a profil en aile d'avion Download PDFInfo
- Publication number
- WO2015004342A1 WO2015004342A1 PCT/FR2014/000172 FR2014000172W WO2015004342A1 WO 2015004342 A1 WO2015004342 A1 WO 2015004342A1 FR 2014000172 W FR2014000172 W FR 2014000172W WO 2015004342 A1 WO2015004342 A1 WO 2015004342A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sail
- flexible
- plate
- assembly
- modules
- Prior art date
Links
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
- B63H9/06—Types of sail; Constructional features of sails; Arrangements thereof on vessels
- B63H9/061—Rigid sails; Aerofoil sails
Definitions
- the present invention relates to a propulsion sail and aims to bring the aerodynamic qualities of thick profile aircraft wings to the classic sails of propulsion boats, beach carriages or flying wings while respecting their constraints of use, ferlage , reduction of the sail area according to the wind, reversal of the concavity according to the edge of incidence of the wind relative to the running of the boat.
- the thick semi-rigid profiles use relatively complex mechanical systems which very often require a special rigging (mast with several sailings) which do not always allow the reduction of wing and the ferlage and which do not lead to the expected effect of a thick sail (association of two sails with problem of keeping the thickness of the sail for example).
- Patents FR 2 431 425 and FR 2 401 059 describe interesting semi-rigid thick profiles but the proposed devices are permanent and often require the creation of a new sail.
- the object of the invention is to propose a new solution for forming an aircraft wing profile propulsion sail which is simple to design and implement.
- the present invention proposes an aircraft wing profile propulsion sail, also called sail system, comprising a conventional flexible sail and at least one removable thickness module, also called volume thickness module, adapted to be removably assembled on one side of the flexible sail, characterized in that each module comprises at least one flexible plate or sheet, for example of substantially rectangular shape, comprising a leading edge and a trailing edge, said plate being able to be removably assembled by its leading edge substantially the along the luff of the flexible sail via first assembly means, and to be removably assembled by its trailing edge via second assembly means, said propulsion sail comprising at least one pair of modules, the two modules said pair being disposed substantially symmetrically on either side of the flexible sail, a module being assembled on each face of the flexible sail.
- a device for constructing from a conventional sail a wing with a profile of aircraft wing reversible concavity to improve the aerodynamic performance by respecting the usual functions of the so-called classic sail consists of an improvement of the above-mentioned patent document FR 2 955 830.
- Such flexible plates according to the invention make it possible to create modules of simple thickness of design and implementation.
- the use of at least one pair of modules vis-à-vis allows to create a thick profile on both sides of the sail, reversible according to the incidence of wind.
- the sail comprises a single pair of modules, or several pairs of modules assembled one above the other.
- each plate extends from the luff on a part of the rope, or on the entire rope until the fall. For example, each plate extends over 40% of the rope, and generates about 6% of the rope thickness, or 12% for a pair of plates.
- each module further comprises at least one insert, placed between the flexible plate and the flexible sail, when said plate is assembled on said flexible sail, and able to separate said plate from the face of the sail.
- one or more inserts are inserted between the sail and the plates to increase and / or modulate the thickness of each module. The use of such inserts, allows the use of thin plates, and therefore of limited weight and more easily storable when the sail is not used.
- said second assembly means are able to allow relative displacement in translation of the flexible plate relative to the flexible sail in the direction substantially perpendicular to the luff of the flexible sail. This freedom of movement of the plates allows an adaptation of the profile of the sail as a function of the edge of incidence of the wind relative to the course of the boat, without deformation of the flexible sail.
- each flexible plate is formed of a foam plate, for example polyethylene foam. According to another embodiment, each flexible plate is formed of a semi-rigid plastic material.
- each insert is formed of a tube, preferably made of foam, and preferably disposed substantially parallel to the luff of the flexible sail, substantially vertically, between a flexible plate and the sail.
- the foam plates and / or foam inserts provide buoyancy and can limit or eliminate the risk of rollover.
- each insert is formed of an inflatable structure.
- each insert is assembled to a flexible plate and / or the flexible sail via connecting means, such as velcro type systems.
- the sail comprises first assembly means and / or second assembly means able to simultaneously assemble the flexible plates of the same pair, disposed on either side of the flexible sail.
- said first and / or second joining means comprise one or more connecting pieces, each connecting piece comprising a central tube and two lateral tubes connected together, so that the lateral tubes can be positioned in a mounting position in which the central tube and the two lateral tubes are substantially aligned or parallel, and an assembly position in which the lateral tubes are positioned substantially perpendicular to the central tube, said connecting piece, with its lateral tubes in the mounting position, being able to be inserted into a hole or light of a first plate of a pair of modules, an eyelet of the flexible sail, and a hole or light of the second plate of the pair of modules, for example by means of a mounting rod inserted into the internal passages of the tubes, and to maintain the two plates on the sail, when its two lateral tubes are in the assembly position, each against the outer face do not have a flexible plate.
- Such an assembly part allows an operator to assemble two plates vis-à-vis remaining on the same side of the sail.
- the second assembly means comprise one or more connecting pieces, each assembly piece being able to pass in a horizontal light of the flexible plates, arranged substantially perpendicularly to the luff, to allow said displacement in translation. .
- the central tube and the two lateral tubes of an assembly part are connected to each other by an elastic passing in the internal passage of the central tube and whose ends are assembled to the lateral tubes, preferably in their middle, the elastic link emanating said lateral tubes in their assembly position.
- the central tube and the lateral tubes are connected by a portion of reduced section forming a hinge and making it possible to move the lateral tubes between their two positions, the connecting piece being able to be formed of a single piece by example of molded or injected plastic, or two one-piece parts each comprising a lateral tube connected to a central tube portion by a reduced section portion, the two one-piece pieces being assembled to each other directly or by interposing one or several spacers to form central tubes of lengths different.
- the flexible sail comprises sliders along the luff, for its mounting on a mast, said sail comprising one or more angles, each angle being able to be mounted vertically between two sliders, between the mast and the modules. .
- the sail comprises intermediate assembly means capable of assembling each plate to the flexible sail between the first assembly means and the second assembly means, in particular between the inserts and the second means of assembly. assembly, said intermediate assembly means being preferably adapted to allow a relative displacement in translation of the flexible plate relative to the flexible sail in the direction perpendicular to the luff of the flexible sail.
- said sail comprises pre-positioning means to allow pre-positioning of the plates before their assembly with the first and second assembly means.
- pre-positioning means may comprise Velcro type systems, in one or more hook / loop strips arranged, preferably substantially vertically, on the plates and on the flexible sail.
- FIG. 1 is a schematic side view of a sail according to the invention.
- FIG. 2 is an enlarged partial view along the section plane
- FIG. 3 is an enlarged partial view along the section plane
- Figures 4A and 4B show sectional views similar to that of Figure 2 illustrating the principle of automated asymmetry
- FIGS. 5A and 5B are diagrammatic side views of an assembly part respectively in the mounting position and in position assembly;
- FIG. 6 is an enlarged view of the detail D of FIG. 1;
- Figure 8 is a view similar to that of Figure 4A illustrating an alternative embodiment.
- the aircraft wing profile propulsion sail comprises a so-called conventional flexible sail 1, formed for example of dacron widths assembled to each other, and comprising a luff 13, a border 14 and a chute 15.
- the sail is here provided with a rope 16 along the luff for its assembly to the groove of the mast.
- the sail 1 further comprises thickness modules, designated under the general reference 2, positioned on each of its faces 11, 12 of the sail.
- the sail comprises on each face 11, 12, three superimposed modules, referenced 2a, 2b, 2c in Figure 1.
- the sail comprises three pairs of two modules, the two modules of each pair being arranged vis-à-vis, substantially symmetrically on either side of the flexible sail 1.
- Figure 2 illustrates the two modules 2a, 2 'a vis-à-vis a pair.
- Each module 2 comprises a sheet or flexible plate 21, for example a foam sheet, placed on one face of the sail 1 and one or more inserts 3 placed between the plate and the sail according to the desired thickness and profile.
- Each insert 3 is formed of a foam tube.
- the sail comprises connecting means 4 for connecting here the inserts 3 to the plates 21 and assembly means 5, 6 for the assembly of the plates on each face of the sail.
- the connecting means are here formed of velcro type system 4, for example with one or more hook portions, in the form of strips, arranged on the inner face of the plates, and one or more band-shaped loops parts, arranged on the inserts.
- hook strips 41 are fixed substantially horizontally on the inner face of the plates 21, preferably at least two strips offset vertically from one another.
- Each insert is provided with a loop band 42 extending longitudinally on the along ⁇ insert.
- Each plate 21 has a leading edge 21a and an opposite edge 21b said leak.
- first assembly means 5 are provided for assembling the leading edge 21a on the sail 1, along the luff 13, and second assembly means 6 are provided for assembling the trailing edge 21b on sailing.
- these first and second assembly means comprise assembly parts 7.
- this connecting piece 7 is formed of a central tube 71 and two lateral tubes 72 interconnected by an elastic link 73.
- the elastic link passes into the internal passage of the central tube 71 and each end of the link is connected to a lateral tube 72, substantially in the middle of the lateral tube.
- the lateral tubes are elastically biased by the elastic link in a so-called assembly position illustrated in FIG. 5B, in which the lateral tubes are positioned substantially perpendicular to the central tube.
- the end edges of the central tube advantageously have two opposite concave notches in which the lateral tubes are positioned in the assembly position to make a so-called wolf-mouth assembly.
- the first assembly means 5 here comprise three assembly parts 5 offset vertically from each other, each assembly piece for assembling simultaneously on the sail the two modules vis-à-vis a pair. Each assembly piece passes through a circular hole or hole 22 in the plate of each module and in an eyelet 17 of the sail.
- the central tube has passed the light of the second plate, the operator can withdraw the needle, the lateral tubes return elastically in the assembly position.
- the second assembly means 6 also comprise three assembly pieces 7, each passing as before in a hole or hole 23 near the drop edge of each plate and in an eyelet 18 of the sail.
- the lights 23 are horizontal, preferably oblong, horizontally extending lights substantially perpendicular to the luff 13, so as to allow a displacement of the plates relative to the sail for an automatic adaptation of the profile as a function of the angle of incidence. the wind.
- These horizontal lights can be reinforced by sticking on their periphery a reinforcement, such as adhesive band of sailcloth, type assigna.
- a washer 61 broken is preferably then mounted on the central tube, between each side tube and the plate, to prevent accidental removal of the assembly part, if one of the side tubes is positioned parallel to the horizontal lights.
- prepositioning means 8 are provided along the luff 13 to assist in the placing of the plates 21.
- These means consist for example of Velcro, with hooked portions or bands 81 and 82 loops parts provided on the sail and the plates.
- each plate is formed of a polyethylene foam plate, for example about 10 mm thick and a density of 33 kg / m, marketed under the trade name Plastazote, thickened by inserts formed of foam tubes of the type of insulating sleeves conventionally used in the field of insulation, for example of 50, 60 or 80 mm in diameter.
- the kinematics of use of the configuration by the crew is as follows.
- the sails concerned are stationed and ready to be hoisted.
- the principle is to apply pairs of modules on the surface or the thickness is desired according to the sailing patterns chosen by the crew.
- the plates 21 of the modules are pre-positioned thanks to the velcro 8 on the sail and on the plates, then assembled to the sail thanks to the connecting pieces 7 which pass through the eyelets 17 the along the luff and the holes 22 along the leading edge of the plates.
- Other assembly parts pass through the horizontal lights 23 on the rear part of the plates, and the eyelets 18 on the sail.
- the inserts 3 are placed between the plates and the sail, and held in place thanks to the Velcro 4. Once the sail is established, it has a thick part along the luff which increases its performance.
- the sail reacts like a conventional sail and naturally, thanks to the use of the initial hollow of the flexible sail, the transfer of the intrados / extrados volumes takes place automatically, as illustrated in FIGS. 4A. and 4B, the horizontal lights 23 allowing the plates 21 to move.
- the removal of the thickness modules has the effect of bringing the sail back to its original configuration to allow reefing in a conventional manner. Unused thickness modules will be stored on or in the boat.
- the removable thickness modules above, as well as the implementation methods are applicable on the sails of sailboats or any other craft propelled by the force of the wind by means of sails or wings and all the sails themselves and this , without any modification of the usual rigging being necessary. They can be marketed as a kit based on existing sails.
- FIG. 8 illustrates an embodiment variant in which the inserts 103 are of the inflatable type and comprise an inflatable pocket 131 placed in an envelope 132 through which the insert is connected to the or a plate by means of connection 104.
- These connecting means are formed of assembly pieces 104 similar to those described above, passing through openings of the envelope, the sail, and / or plates, possibly obtained from smaller section tubes, as shown in Figure 8.
- the inflatable pocket of one of the two inserts has been omitted in Figure 8 to better illustrate these connecting means.
- Joining pieces 104 are used to assemble at the same time the envelopes 132 of the two inserts on either side of the sail, and connecting pieces are used to connect each envelope to a plate.
- each inflatable insert extends over substantially the entire height of the sail, and is assembled by its envelope to the different plates. Once the sail has been hoisted, the bag is inflated via a valve at the bottom.
- the insert has a generally conical shape, with a section that varies according to the rope of the sail. This variable section is advantageously obtained via an envelope whose section decreases from bottom to top.
- Intermediate assembly means 106 for assembling the plates 21 on the sail are further provided between the inserts 104 and the second assembly means 6 to ensure the maintenance of the profile.
- These secondary assembly means are formed of assembly parts 107, similar to those 7 used for the second assembly means, with central tubes of greater length. These assembly pieces pass through horizontal lights 123 on the plates and eyelets 118 on the sail.
- the first assembly means are formed of a zipper system, conventionally called zipper or zip, with for each plate a band provided with teeth assembled on the sail and band provided with teeth assembled on plate.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
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- Combustion & Propulsion (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14777681.9A EP3019395B1 (fr) | 2013-07-11 | 2014-07-07 | Voile de propulsion a profil en aile d'avion |
AU2014289085A AU2014289085B2 (en) | 2013-07-11 | 2014-07-07 | Propulsion sail having an aircraft wing profile |
US14/903,567 US9688372B2 (en) | 2013-07-11 | 2014-07-07 | Propulsion sail having an aircraft wing profile |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1301642A FR3008380A1 (fr) | 2013-07-11 | 2013-07-11 | Voile a propulsion a profil en aile d'avion |
FR1301642 | 2013-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2015004342A1 true WO2015004342A1 (fr) | 2015-01-15 |
WO2015004342A8 WO2015004342A8 (fr) | 2015-11-26 |
Family
ID=49378326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2014/000172 WO2015004342A1 (fr) | 2013-07-11 | 2014-07-22 | Voile de propulsion a profil en aile d'avion |
Country Status (5)
Country | Link |
---|---|
US (1) | US9688372B2 (fr) |
EP (1) | EP3019395B1 (fr) |
AU (1) | AU2014289085B2 (fr) |
FR (1) | FR3008380A1 (fr) |
WO (1) | WO2015004342A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2401059A1 (fr) | 1977-08-25 | 1979-03-23 | Chapoutot Alain | Voile de propulsion a profil en aile d'avion de concavite reversible |
FR2431425A2 (fr) | 1977-08-25 | 1980-02-15 | Chapoutot Alain | Voile de propulsion a profil en aile d'avion de concavite reversible |
GB2231854A (en) * | 1989-05-18 | 1990-11-28 | Anthony Charles Strickland | Baffled sail or sail portion |
FR2955830A1 (fr) | 2010-02-02 | 2011-08-05 | Antoine Marie Jerome Debled | Voile de propulsion a profil en aile d'avion |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4341176A (en) * | 1980-09-29 | 1982-07-27 | Orrison William W | Air foil with reversible camber |
US4879961A (en) * | 1988-08-03 | 1989-11-14 | Aguilera Angel R | Sail airfoil device |
-
2013
- 2013-07-11 FR FR1301642A patent/FR3008380A1/fr active Pending
-
2014
- 2014-07-07 US US14/903,567 patent/US9688372B2/en active Active
- 2014-07-07 EP EP14777681.9A patent/EP3019395B1/fr active Active
- 2014-07-07 AU AU2014289085A patent/AU2014289085B2/en active Active
- 2014-07-22 WO PCT/FR2014/000172 patent/WO2015004342A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2401059A1 (fr) | 1977-08-25 | 1979-03-23 | Chapoutot Alain | Voile de propulsion a profil en aile d'avion de concavite reversible |
FR2431425A2 (fr) | 1977-08-25 | 1980-02-15 | Chapoutot Alain | Voile de propulsion a profil en aile d'avion de concavite reversible |
GB2231854A (en) * | 1989-05-18 | 1990-11-28 | Anthony Charles Strickland | Baffled sail or sail portion |
FR2955830A1 (fr) | 2010-02-02 | 2011-08-05 | Antoine Marie Jerome Debled | Voile de propulsion a profil en aile d'avion |
Also Published As
Publication number | Publication date |
---|---|
EP3019395B1 (fr) | 2018-08-22 |
AU2014289085A1 (en) | 2016-02-04 |
AU2014289085B2 (en) | 2018-03-22 |
US9688372B2 (en) | 2017-06-27 |
WO2015004342A8 (fr) | 2015-11-26 |
US20160167757A1 (en) | 2016-06-16 |
FR3008380A1 (fr) | 2015-01-16 |
EP3019395A1 (fr) | 2016-05-18 |
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