WO2021136853A1 - Hidrosustentador para pequeñas embarcaciones - Google Patents
Hidrosustentador para pequeñas embarcaciones Download PDFInfo
- Publication number
- WO2021136853A1 WO2021136853A1 PCT/ES2020/070001 ES2020070001W WO2021136853A1 WO 2021136853 A1 WO2021136853 A1 WO 2021136853A1 ES 2020070001 W ES2020070001 W ES 2020070001W WO 2021136853 A1 WO2021136853 A1 WO 2021136853A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wing
- hydrosustainer
- legs
- boat
- wings
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/40—Body-supporting structures dynamically supported by foils under water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/66—Arrangements for fixation to the board, e.g. fin boxes or foil boxes
-
- 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
- B63B1/242—Mounting, suspension of the foils
-
- 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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Definitions
- the object of the present invention has application in the field of the naval industry and more specifically in the nautical sports and recreational construction of small boats, since it is a hydrosustainer, also known in Anglo-Saxon terminology as hydrofoil, which implements a particular hydrodynamic and structural configuration, which finds utility in supporting small boats to move them at a certain height above the water surface.
- hydrofoils for the support of boats, not only of small size such as hydrofoils for windsurfing and kitesurfing boards or dinghy sailing, but also for large sailboats or ships.
- hydrofoil systems for sailboats or ships use many different configurations of hydrofoils whose position and / or incidence is regulated by control systems that allow the stability and maneuverability of the boat in different flight conditions.
- the objective of the present invention is to provide a water support for small boats, which is self-stabilizing in the longitudinal plane of the boat for a wide range of longitudinal position of the center of gravity without actuation of any mechanism. ; while allowing lateral maneuverability of the boat by laterally shifting the center of gravity.
- the invention proposes a water support that has the characteristics of claim 1.
- the present invention describes a system that, unlike small water-sustaining systems, the flight remains in stable conditions by varying the flight speed, by correcting the tendency of the wing to exit the water, replacing it with a tendency to decrease the angle attack as speed increases and to increase as speed decreases, flying in conditions close to constant lift within a wide range of flight speed, which causes the boat to remain at a nominally constant height above the water with varying speed flight / navigation.
- the proposed water support system also substantially widens the lateral positioning range of the center of gravity, which greatly favors the performing lateral maneuvers by lateral displacement of the center of gravity with respect to the axis of the boat.
- Fig. 1 shows a perspective view of the water support object of the invention.
- Fig. 2 represents respective bottom plan and side elevation views of this device, in which dimensions have been placed that show the proportions that can reach various dimensions.
- - Figs. 3 and 4 are views of the front and rear train of this hydrosustainer, respectively.
- Fig. 5 shows a side view of an alternative embodiment of the rear end of a variant of the hydrosupport of the invention.
- the invention basically consists of two wings (32, 22) attached to the boat (1) by two legs (31, 21) each. From now on we will refer to these two-legged wing assemblies as “trains”. In this way, there is a front train (3), whose longitudinal location will be ahead of the center of gravity of the entire vessel, also including the pilot and / or crew. For its part, the rear gear (2) has a longitudinal location behind the center of gravity of the boat + pilot / crew assembly.
- wings are used with a geometric mean chord of around 20 cm, a length that we will hereinafter refer to as characteristic chord (C).
- the wings (32, 22) straight wings or with widening at the tips are used, unlike the wings used in aeronautics, which usually present narrowing at the tips. If we define the broadening parameter (2) as the quotient between the chord at the tips (c t ) and the chord at the root (c r ), wings with a broadening parameter between 1 (straight wing) and 3 are used.
- spans of between 4 and 8 characteristic strings (80-160 cm) are used in general, while in the embodiment corresponding to dinghy sailing boats, larger spans are used as such. as will be detailed in the corresponding section.
- wings without arrow are normally used, although the use of wings with moderate arrow is contemplated for aesthetic reasons, to delay the effects of cavitation in high-speed vehicles or to avoid the hooking and dragging of debris that may be found in the aquatic environment.
- the legs (31) of the front gear (3) have a circular or quasi-circular section, so that when the vehicle is navigating with slipping, the hydrodynamic lateral forces produced in said legs (31) are very low; consequently they will never be flat, so that they do not support.
- the rear train (2) has a normally flat wing (22), although it may have a certain dihedral.
- the legs (21) of the rear train (2) are either flat or with a symmetrical hydrodynamic profile. In both cases, it is intended that, when the vehicle is navigating slippery, notable lateral forces are produced that reinforce the directional stability of the vehicle when said legs (21) are submerged or partially submerged. That is, when the vehicle is floating, taking off or in low speed flight.
- the realization of the legs (21) in a symmetric aerodynamic profile is contemplated only for the reduction of the hydrodynamic resistance of said legs.
- Vertical fins (23) are installed on the wingtips of the rear wing (22), like keels, which are responsible for the directional stability of the vehicle. Said fins (23) are installed directly on the rear wingtips (22). In an alternative embodiment, said rear wings (22) are mounted on horizontal masts (24) that are attached to the wing tips (22) and that allow the longitudinal location of said wings (23) in more forward or backward positions with respect to the longitudinal position of the wingtips. The longitudinal location of these wings determines to a large extent the behavior of the vehicle in lateral maneuvers, which is why it is of great importance the possibility of modifying the longitudinal position of its installation in order to configure the type of vehicle driving.
- the legs (31, 21) of the front (3) and rear (2) trains have a length of between 2 and 6 characteristic strings (40-120 cm). It should be noted that the two legs can be replaced by one, but when there are two they support less effort each one of them and, when they are removable, their placement is easier since they would require a less robust fixing mechanism as they support less effort than if it is just one leg.
- the preferred embodiment of the invention is a water-supporting watercraft. Said embodiment results from the installation of everything described above on a small hull of 200-300 cm in length and 80-120 cm in beam provided with a propulsion plant based on an explosion or electric motor driven by a propeller or water jet. On this helmet there is a saddle that allows the pilot to straddle the helmet and a handlebar whose rotation allows directional control of the vehicle by lateral deflection of the thrust produced by the propeller or water jet or by deflection one or two rear vertical fins as a rudder.
- the propeller or the water jet outlet nozzle is installed in a central position and rearward with respect to the rear train and at a height coinciding with that of the rear wing, in a range of +/- 1 characteristic chord.
- the throttle or power control is actuated by a trigger or grip installed on one of the handlebar horns.
- control to regulate the height of the vehicle above the water surface. Said control is carried out by regulating the angle of relative incidence of the front wing (32).
- the implementation of this angle regulation is contemplated in three different ways:
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
- Indole Compounds (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2020/070001 WO2021136853A1 (es) | 2020-01-02 | 2020-01-02 | Hidrosustentador para pequeñas embarcaciones |
| EP20911142.6A EP4086158A4 (en) | 2020-01-02 | 2020-01-02 | Hydrofoil for small vessels |
| AU2020419451A AU2020419451A1 (en) | 2020-01-02 | 2020-01-02 | Hydrofoil for small vessels |
| US17/790,656 US20230042907A1 (en) | 2020-01-02 | 2020-01-02 | Hydrofoil for small vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2020/070001 WO2021136853A1 (es) | 2020-01-02 | 2020-01-02 | Hidrosustentador para pequeñas embarcaciones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021136853A1 true WO2021136853A1 (es) | 2021-07-08 |
Family
ID=76687164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2020/070001 Ceased WO2021136853A1 (es) | 2020-01-02 | 2020-01-02 | Hidrosustentador para pequeñas embarcaciones |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230042907A1 (es) |
| EP (1) | EP4086158A4 (es) |
| AU (1) | AU2020419451A1 (es) |
| WO (1) | WO2021136853A1 (es) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3747138A (en) * | 1970-10-26 | 1973-07-24 | D Morgan | Hydrofoil surfboards |
| US7144285B1 (en) * | 2003-07-15 | 2006-12-05 | Tareah John Hendricks | Hydrofoil surfing board |
| US20080305698A1 (en) * | 2007-03-14 | 2008-12-11 | Rosiello Keith M | Towed personal watercraft |
| US7604522B1 (en) * | 2009-02-03 | 2009-10-20 | Burnham Jr Lawrence E | Hydrofoil bike apparatus |
| US20150083034A1 (en) * | 2008-03-28 | 2015-03-26 | Jonathan Sebastian Howes | Hydrofoil watercraft |
| US20180050768A1 (en) * | 2016-05-17 | 2018-02-22 | Go Foil, Inc. | Hydrofoil-based apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2703063A (en) * | 1951-01-16 | 1955-03-01 | Hydrofoil Corp | Hydrofoil craft |
| US3081728A (en) * | 1960-07-15 | 1963-03-19 | Bullard Co | Hydrofoil craft |
| DE1157956B (de) * | 1961-08-28 | 1963-11-21 | Iaweseria Flugzeugbau Ges Mit | Schnellschiff mit Unterwassertragflaechen |
| FR2563800A1 (fr) * | 1984-05-07 | 1985-11-08 | Rusev Simeon | Objet muni d'ailes de portance hydrodynamique |
| IT1189741B (it) * | 1986-04-04 | 1988-02-04 | Rodriguez Spa | Aliscafo a geometria controllabile |
| US5471942A (en) * | 1994-02-25 | 1995-12-05 | Miller; Richard T. | Hydrofoil sailboard with supercavitating canard hydrofoil |
| JP2006182338A (ja) * | 2004-12-24 | 2006-07-13 | Kotaro Horiuchi | セールボード用水中翼装置 |
| WO2014129915A1 (en) * | 2013-02-20 | 2014-08-28 | Ux2 Centrum Technologiczne Sp. Z.O.O | A small-sized speedboat with hydrofoils |
-
2020
- 2020-01-02 US US17/790,656 patent/US20230042907A1/en not_active Abandoned
- 2020-01-02 WO PCT/ES2020/070001 patent/WO2021136853A1/es not_active Ceased
- 2020-01-02 AU AU2020419451A patent/AU2020419451A1/en not_active Abandoned
- 2020-01-02 EP EP20911142.6A patent/EP4086158A4/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3747138A (en) * | 1970-10-26 | 1973-07-24 | D Morgan | Hydrofoil surfboards |
| US7144285B1 (en) * | 2003-07-15 | 2006-12-05 | Tareah John Hendricks | Hydrofoil surfing board |
| US20080305698A1 (en) * | 2007-03-14 | 2008-12-11 | Rosiello Keith M | Towed personal watercraft |
| US20150083034A1 (en) * | 2008-03-28 | 2015-03-26 | Jonathan Sebastian Howes | Hydrofoil watercraft |
| US7604522B1 (en) * | 2009-02-03 | 2009-10-20 | Burnham Jr Lawrence E | Hydrofoil bike apparatus |
| US20180050768A1 (en) * | 2016-05-17 | 2018-02-22 | Go Foil, Inc. | Hydrofoil-based apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020419451A1 (en) | 2022-08-04 |
| US20230042907A1 (en) | 2023-02-09 |
| EP4086158A4 (en) | 2023-11-08 |
| EP4086158A1 (en) | 2022-11-09 |
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