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WO2006019306A1 - Appareil propulsif s'utilisant sur des liquides mouvants - Google Patents

Appareil propulsif s'utilisant sur des liquides mouvants Download PDF

Info

Publication number
WO2006019306A1
WO2006019306A1 PCT/NO2005/000274 NO2005000274W WO2006019306A1 WO 2006019306 A1 WO2006019306 A1 WO 2006019306A1 NO 2005000274 W NO2005000274 W NO 2005000274W WO 2006019306 A1 WO2006019306 A1 WO 2006019306A1
Authority
WO
WIPO (PCT)
Prior art keywords
sail
halves
propulsion device
main position
sail halves
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.)
Ceased
Application number
PCT/NO2005/000274
Other languages
English (en)
Inventor
Tore Lyngholm
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.)
WING SAIL AS
Original Assignee
WING SAIL AS
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 WING SAIL AS filed Critical WING SAIL AS
Publication of WO2006019306A1 publication Critical patent/WO2006019306A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B63H9/065—Battens
    • 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
    • B63H9/067—Sails characterised by their construction or manufacturing process

Definitions

  • Propulsion device for exploiting a moving fluid
  • the invention relates to a propulsion device for exploiting a moving fluid as disclosed in the preamble of claim 1.
  • a propulsion device in the form of a sail is shown on page 106 of Sail performance. Theory and practice, C. H. Marchaj, Adlard Coles Nautical, London 1996.
  • This sail is a Bermuda sail with two sail halves or canvases of the same shape and size, whose luff is connected to a mast and whose leech and foot are not interconnected.
  • the canvases When sailing close-hauled, the canvases can lie against each other, and the sail can then be used as an ordinary Bermuda sail.
  • the canvases When reaching or running, the canvases can be moved apart so that they extend from the mast in different directions.
  • this sail has the advantageous properties that reefing can be carried out in a simple manner and that a foresail is unnecessary. Furthermore, the sail area can be doubled while sailing with the wind abaft the beam, i.e., when reaching or running.
  • Fig. Ia is an illustration of a boat with a propulsion device in accordance with the present invention.
  • Fig. Ib is an illustration of a boat with two such propulsion device in accordance with the invention, where the propulsion devices are fastened to the boat in different ways;
  • Fig. 2 shows the configuration of two canvases which constitute the propulsion device according to the present invention;
  • Fig. 3 is a side view of the propulsion device, which in addition shows different horizontal cross-sectional profiles of the device, rotated 90° about a horizontal longitudinal axis of the cross-section;
  • Fig. 4 is a top view of the propulsion device in different positions, two of the positions showing profiles of the propulsion device with the wind coming from behind (the front of the boat is uppermost);
  • Fig. 5 is an illustration of the propulsion device with the wind from behind, the device forming an essentially unstable delta wing
  • Fig. 6 is an illustration of the propulsion device with the wind from behind, where a lower area of the device has the form of an essentially unstable delta wing, whilst an upper area has the form of an essentially stable delta wing;
  • Fig. 7 is an illustration of the propulsion device with the wind from behind, the device having the form of an essentially stable delta wing.
  • the propulsion device is a sail which exploits the wind as a moving fluid in order to provide propulsion for a boat.
  • the word "sail” in this application will be used synonymously with the word “propulsion device”.
  • Fig. Ia shows a boat 1 with a stay or mast 2.
  • a sail 3 is fastened to the boat 1 and to the mast 2.
  • the sail 3 in accordance with the present invention comprises two substantially triangular sail halves 30, 30' (Fig. 2).
  • Each sail half 30, 30' comprises respectively a foot 31, 31', a leech 32, 32' and a luff 33, 33'.
  • Fig. Ib shows another boat 1 with two sails 3a, 3b fastened respectively to a stay or a mast 2a or a line 2b and to the boat 1.
  • the sail in accordance with the invention can thus be used as a mainsail and/or foresail.
  • the area where the leech 32 or 32' meets the luff 33 or 33' is called the head 40 or 40'.
  • the area where the leech 32 or 32' meets the foot 31 or 31' is called the tack 41 or 41'.
  • the area where the luff 33 or 33' meets the foot 31 or 31' is called the clew 42 or 42'.
  • Fig. 1 it is shown that the sail 3 is fastened to the top of the mast 2 by one control line 10 secured to the head 40, 40'.
  • the sail 3 is also fastened to a substantially forward area of the boat 1 by one control line 12 secured to the clew 42, 42', whilst each sail half 30, 30' is fastened to a substantially rear area of the boat 1 by control lines 11 secured to the tack 41 and 41', respectively.
  • the control lines 10, 11, 12 are tightened or slackened during sailing as required.
  • the edges of the luff 33, 33' of each sail half 30, 30' are joined or in another way fastened to each other, or the sail halves 30, 30' are provided as a single unit.
  • the junction of the luffs 33, 33' comprises extending means (not shown). The purpose of the extending means is to extend the sail halves in the horizontal direction of the sails.
  • the extending means are arranged so that the extension varies along the length of the luff.
  • the solid line in each sail half 30, 30' in Fig. 2 indicates the straight line between the head 40, 40' and the clew 42, 42'.
  • the tightening of the control lines 10 and 12 will, because of the distance between the solid line and the joint at the edge of the luffs 30, 30', result in a tightening of the sail halves in a direction essentially parallel to the solid line.
  • the luffs 30, 30' will also be moved apart through this tightening.
  • the distance between the solid line and the edge of the luff will thus indicate the degree of extension.
  • there is a small degree of extension in the upper and lower areas of the luff but maximum extension takes place in an area below half of the length of the luff.
  • the extending means may be incorporated into the sail material.
  • the extending means will comprise flexible ribs or hoops fastened to the sail halves 30, 30', and in particular to the luffs 33, 33'. The positioning of these means should be expedient for the furling of the sail.
  • the sail 3 When the boat sails close-hauled, the sail 3 will be in a first main position as shown in Fig. 3.
  • the sail halves 30, 30' in this case have essentially the same shape when seen at right angles towards the plane of the sail material, and the sail halves 30, 30' overlap one another.
  • Four cross profiles 51 - 54 of the sail 3 without wind action are shown in Fig. 3 for different degrees of tightening of the sail 3. It is presumed for the sake of simplicity that the degree of tightening is the same in both sail halves.
  • a cross profile 54 is obtained.
  • the cross profiles 53 and 52 are obtained on further tightening, and on maximum tightening, the cross profile 51 is obtained.
  • the extending means cause the sail 3 to have a wing- shaped cross profile.
  • Four more cross profiles 61 - 64 of the sail 3 with wind action are shown in Fig. 3 for different degrees of tightening of the sail 3.
  • Each cross profile 61 - 64 is shown with the wind both from port and from starboard.
  • the extending means also in this case cause the sail 3 to have a curved, wing-shaped cross profile, where the distance between the two sail halves 30, 30', and especially the distance between the luffs 33, 33', decreases with increasing tightening of the sail 3.
  • Closeable inlet openings are preferably provided in the sail halves 30, 30' close to the luffs 33, 33'. When the wind comes towards one of the sides, the inlet openings in the sail half oriented substantially towards the wind direction will be opened whilst the inlet openings in the other sail half will be closed.
  • the leech 32 and the foot 31 are no longer close to the leech 32' and the foot 31'.
  • the sail 3 thus obtains a working area in relation to the wind that is twice as big.
  • the problem of instability when running, as mentioned above, can be avoided with the sail 3 in accordance with the present invention in the second main position. This will be described in connection with different tightening of the sail 3 to the positions shown in Figs. 6-7.
  • Fig. 6 the essentially unstable position is shown.
  • the sail is essentially U- shaped with the opening of the U facing the wind. A large, unstable working area for the wind is obtained.
  • Fig. 7 the essentially stable position is shown. This position is obtained by slackening one or more of the control lines 10, 11, 12 further in relation to the position shown in Fig. 6.
  • the sail here is essentially V-shaped with the point facing the wind, and where the legs of the V are curved because of the action of the wind.
  • a wing with a shape like that described and shown in connection with Fig. 7 is called a delta wing.
  • a delta wing is described in Marchaj et al., mentioned above.
  • Fig. 7 shows a highly favourable position for the sail 3 in accordance with the present invention when running.
  • the wind will push the tack (40, 40') of the sail 3 forwards and the solid line on the luff (shown in Fig. 2) will now be at an angle in relation to the horizontal axis.
  • a lower area (E) of the sail 3 will still have a U-shape as shown in Fig. 6, whilst an upper area (D) of the sail 3 will have a V-shape as shown in Fig. 7.
  • the propulsion device can take place by controlling the lines 10, 11, 12 and/or by altering the curvature of the mast 2, 2a or the forestay 2b.
  • the sail 3 can preferably be furled according to need, as can be done with other types of sails.
  • the second main position of the sail 3 can also be used when sailing with the wind at an angle from behind.

Landscapes

  • 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)
  • Manufacturing & Machinery (AREA)
  • Wind Motors (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

L'invention concerne un appareil propulsif (3) exploité sur un liquide mouvant, qui comprend deux moitiés de voile congruentes et essentiellement triangulaires (30, 30'), composées d'une envergure (33,33'), d'une chute (32, 32') et d'une bordure (31, 31'). Les envergures (33,33') des deux moitiés de voile sont réunies dans la direction longitudinale par des moyens extensibles. L'appareil propulsif (3) est également relié, par un point de drisse (40, 40'), un point d'armure (41, 41') et un point d'écoute (42, 42'), à un mât (2) et/ou au bateau (1), les moitiés de voile (30,30') pouvant être ainsi entraînées entre deux positions principale: (a) une première position principale dans laquelle les points d'armure (41, 41') des moitiés de voile (30, 30') se dressent essentiellement côte à côté et se superposent pour former une section transversale formant un profil de voilure; et (b) une seconde position principale dans laquelle les points d'armure (41, 41') des moitiés de voile (30, 30') s'écartent l'une de l'autre; la surface supérieure (D) de la voile (3) dans la seconde position principale étant conçue pour obtenir une forme évoquant sensiblement celle d'une voilure en delta.
PCT/NO2005/000274 2004-07-20 2005-07-19 Appareil propulsif s'utilisant sur des liquides mouvants Ceased WO2006019306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20043081 2004-07-20
NO20043081A NO20043081L (no) 2004-07-20 2004-07-20 Fremdriftsanordning for utnyttelse av strommende fluid

Publications (1)

Publication Number Publication Date
WO2006019306A1 true WO2006019306A1 (fr) 2006-02-23

Family

ID=35013310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2005/000274 Ceased WO2006019306A1 (fr) 2004-07-20 2005-07-19 Appareil propulsif s'utilisant sur des liquides mouvants

Country Status (2)

Country Link
NO (1) NO20043081L (fr)
WO (1) WO2006019306A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435862A (zh) * 2019-08-14 2019-11-12 大连海事大学 一种无人帆船的船帆

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB212665A (en) * 1922-12-19 1924-03-19 Ewing Mcgruer Junior Improvements in the sails of yachts and boats and the like
US4704979A (en) * 1985-11-26 1987-11-10 Ammen Mark E Sail system
US4879961A (en) * 1988-08-03 1989-11-14 Aguilera Angel R Sail airfoil device
SE523556C2 (sv) * 2002-10-22 2004-04-27 Loab Invest Ab Segel till vinddrivna farkoster

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB212665A (en) * 1922-12-19 1924-03-19 Ewing Mcgruer Junior Improvements in the sails of yachts and boats and the like
US4704979A (en) * 1985-11-26 1987-11-10 Ammen Mark E Sail system
US4879961A (en) * 1988-08-03 1989-11-14 Aguilera Angel R Sail airfoil device
SE523556C2 (sv) * 2002-10-22 2004-04-27 Loab Invest Ab Segel till vinddrivna farkoster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110435862A (zh) * 2019-08-14 2019-11-12 大连海事大学 一种无人帆船的船帆

Also Published As

Publication number Publication date
NO20043081L (no) 2006-01-23
NO20043081D0 (no) 2004-07-20

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