US20100089303A1 - Open sea hydrofoil craft - Google Patents

Open sea hydrofoil craft Download PDF

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Publication number
US20100089303A1
US20100089303A1 US11/989,666 US98966606A US2010089303A1 US 20100089303 A1 US20100089303 A1 US 20100089303A1 US 98966606 A US98966606 A US 98966606A US 2010089303 A1 US2010089303 A1 US 2010089303A1
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United States
Prior art keywords
blades
lift producing
vessel
foil
producing foil
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.)
Abandoned
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US11/989,666
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English (en)
Inventor
George Sioutis
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Individual
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Individual
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    • 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
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • 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
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
    • 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
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
    • 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
    • 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
    • B63B1/248—Shape, hydrodynamic features, construction of the foil
    • 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 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B2001/128—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising underwater connectors between the hulls

Definitions

  • the present invention describes an open sea hydrofoil craft adapted to be used as a high-speed vessel for the transport of passengers and cargo, for recreation or various other applications, embodying a combination of advantageous characteristics of catamaran and hydrofoil vessels, whilst eliminating the drawbacks and limitations of the same.
  • hydrofoil crafts which are employed only in closed regions or in calm seas due to the limits imposed by the exposure of foils in the complex forces of waves and the resulting strokes that would be applied on the foils and accordingly on the ship as a whole.
  • hydrofoil type ships are not capable of transporting, bully and heavy items, such as automobiles, etc. and the exploitable space being provided is limited due to the requirements of engine rooms, pump stations, reservoirs, etc.
  • propulsion highly efficient systems such as water jet propulsion.
  • catamaran type vessels with the lateral floats on the sides thereof that do not have the capacity of being lifted during cruising, wherein such lifting might consequently lead to the minimisation of wetted surface that is directly related with the value of frictional resistance.
  • Catamarans also create wave making resistance and hydraulic strokes on the bottom of ship. Because of their design, catamaran vessels are further being subject to oscillations and vibrations with unanticipated consequences in the structural strength of the ship and of the installations thereof.
  • U.S. Pat. No. 2,917,754 discloses a catamaran vessel construction wherein the lateral floats arc made in a convertible flexible connection mode, so as to enable advantageous handling of the vessel when it is moved ashore.
  • the above principal object of the invention is being attained with an open sea hydrofoil craft, operating with propulsive obtained by modern water jet propulsion systems, wherein this craft comprises a pair of longitudinally, vertically extending lateral blades, in analogy to the side floats of catamarans, however with a complex curved configuration that enhances cruising characteristics and minimizes losses and an arrangement of horizontally extending lift producing foils serially arranged within the channel being formed between the vertically extending lateral blades, wherein these horizontally extending foils, in analogy with the foils of hydrofoil type craft adequately lift the vessel during cruising and being protected by the lateral blades provide the possibility of open sea cruising that is not attainable with hydrofoil crafts of the prior art.
  • the object of the present invention to provide an open sea hydrofoil craft that advantageously combines the advantages and eliminates the disadvantages of catamaran and hydrofoil type vessels, wherein the vessel proposed in the present invention displays diminished resistances of all kinds, e.g. of frictional resistances because of the substantially reduced wetted surface thereof during cruising, of air resistances being diminished due to the aerodynamic configuration of the bow and of the vertically extending lateral blades extending to thinned frontal edges and most importantly of the wave making resistances due to the specially designed curved configuration of the vertically extending lateral blades and also due to the design of the horizontally arranged lift producing foils.
  • the vessel of the invention thereby attains high speeds with minimal fuel consumption even in adverse weather conditions.
  • FIG. 1 shows a perspective view focused on the bow, the bottom and the right side of an illustrative embodiment of the open sea hydrofoil craft of the invention.
  • FIG. 2 shows the craft of FIG. 1 in a perspective view focused on the rear right side thereof.
  • FIG. 3 shows a perspective view of the upper and bottom configuration of the fore lift producing foil of the herein proposed vessel.
  • FIG. 4 shows a perspective view of the upper and bottom configuration of the lift producing foil located intermediately between the fore and aft lift producing foils of the herein proposed vessel.
  • FIG. 5 shows a perspective view of the upper and bottom configuration of the aft lift producing foil of the herein proposed vessel.
  • FIG. 6 shows the naval constructional lines and theoretical frames of the conventional part of the vessel of the invention.
  • FIG. 7 shows the hydrostatic curve obtained with a test model vessel structure of the invention.
  • FIG. 8 shows a cross sectional view of the vessel of the invention with the vertically extending lateral blades at the theoretical frames 0 , 2 , 4 , 7 , 8 , the cross sectional view being taken along the section including the horizontally extending aft lift producing foil.
  • FIG. 9 shows a constructional cross sectional view of the vessel being taken along the theoretical frame 3 .
  • FIG. 10 shows a longitudinal side sectional view of the vessel being built for an illustrative cargo-passenger capacity.
  • FIG. 11 shows a perspective side view of a test model specimen of the vessel of the invention.
  • FIG. 12 shows a perspective bottom view of the test model specimen of the vessel of the invention.
  • FIG. 13 shows a perspective side view of the test model specimen of the vessel of the invention, wherein one may observe the theoretical naval frames and the advantageous curved configuration of the lateral vertically extending blades.
  • FIG. 14 shows the test model specimen of the vessel of the invention at a stationary condition within water, prior to lifting.
  • FIG. 15 shows a frontal view of the test model specimen of the vessel of the invention as it cruises within water, wherein wave making is apparently substantially eliminated.
  • FIG. 16 shows a side view of the test model specimen of the vessel of the invention during a turning around an angle of the order of 120°.
  • the open sea hydrofoil craft of the invention being depicted in FIG. 1 or 2 comprises a principal vessel infrastructure-hull A and an overlying superstructure D with a pair of lateral vertically oriented blades B 1 , B 2 mounted onto the hull A and extending longitudinally along the two sides of the hull A, wherein the interior surfaces of the blades B 1 , B 2 that lie one opposite the other are planar.
  • a particular characterizing feature of the present invention is that the exterior surfaces of blades B 1 , B 2 have the configuration of a curve that dynamically changes in three dimensions x, y, z.
  • Such curved configuration advantageously diminishes the resistances being encountered during cruising of the vessel and enhances the advantages obtained with the herein proposed open sea hydrofoil craft.
  • the dynamically changing curved configuration of the exterior surfaces of blades B 1 , B 2 is characterized by that the fore ends of the interior and exterior surfaces of blades B 1 , B 2 converge to form vertically oriented thinned frontal edges (see FIG. 1 , 14 ).
  • blades B 1 , B 2 thereafter gradually diverge from the interior surfaces thereof towards the stern of the vessel defining a space 21 wherein engine rooms and reservoirs are being installed.
  • Such dynamically changing curved configuration of the exterior surfaces of blades B 1 ,B 2 is being defined in three dimensions x, y, z, wherein axis x extends longitudinally along the vessel, axis y extends laterally along the vessel and axis z extends vertically.
  • angle ⁇ 1 formed by the bottom of each one of the blades B 1 , B 2 with y axis, wherein angle ⁇ 1 varies from a minimal value of the order of 5° at the stern and gradually increases to 90° close to the bow of the vessel.
  • This variable angle ⁇ 1 contributes in diminishing frictional and wave making resistances and in providing a substantially planar cruising of the vessel, whilst appropriately allowing for the creation of the space 21 for the engine rooms and fuel reservoirs ( FIG. 1 ).
  • Angle parameter ⁇ 1 also contributes in the creation of an arcuate longitudinally extending lateral edge 20 provided on the exterior surface of each one of the blades B 1 , B 2 .
  • angle ⁇ 2 formed by the curved section of the exterior surface of each one of the blades B 1 , B 2 with the vertically oriented axis z, wherein angle ⁇ 2 varies from a maximum value of the order of 30° at the stern and is gradually diminished to 0° close to the bow of the vessel.
  • This variable angular parameter ⁇ 2 is intended to provide a curved configuration of the exterior surfaces of the vertically extending blades B 1 , B 2 and create narrowed upper parts thereof, thereby diminishing the area and the volume of displacement of water effected by the vessel of the invention, thereby leading towards a sinking tendency of the vertically extending blades B 1 , B 2 .
  • This capacity is considered particularly advantageous for certain applications, wherein if the superstructure D is removed, a large and in the same time substantially low ship is obtained, which, if the case arises, might be lifted onto the water surface and cruise at very high speed.
  • the above angular parameter ⁇ 2 in combination with the angular parameter ⁇ 1 and the arcuate longitudinally extending edge 20 of blades B 1 , B 2 result in the sideward sliding movement of the vessel when turning around a curve and eventually in the vessel effecting such turning operation through displacement of the stern portion thereof. In this way, the vessel of the invention can attain a short turning circle even when cruising at high speed.
  • the side of the arc heading towards the bow and defining the angle parameter ⁇ 3 as well as the side of the arc heading towards the stern and defining the angle parameter ⁇ 4 have a regularly increasing upward inclination and inward inclination ending at the thinned blade bow ends on the one side and at gradually relatively thinned rear portions of blades B 1 , B 2 .
  • the value of the angular parameters ⁇ 3 , ⁇ 4 depends on the overall constructional architecture of the vessel, that is aimed at the herein proposed arcuate longitudinal lateral edge 20 of the blades B 1 , B 2 being made to coincide at a large extent (from the middle towards the bow of the vessel) with the waterline under conditions of cruising at high speed.
  • Such a configuration has proved to avert wave making resulting from changing values of pressures and speeds of water flow in contact with lateral blades B 1 , B 2 and thereby avert power losses associated with such wave making.
  • FIG. 15 depicting the test model specimen cruising at high speed confirms the absence of wave making longitudinally along the exterior surfaces of the lateral blades B 1 , B 2 .
  • the interior planar surfaces of the vertically extending blades B 1 , B 2 longitudinally extending along the sides of the hull A do form, in the direction from the bow towards the stern, an initially slightly convergent and subsequently a slightly divergent channel.
  • Such three dimensionally varying curved configuration of blades B 1 , B 2 provides a capacity of provision of usefully exploitable space close to the bow of the vessel, whilst the combination with the advantageously thinned blade frontal ends results in a substantial reduction of wave making and air resistances at the bow and also in the improvement of the trim of the vessel when stationary, thereby eliminating otherwise occurring possibilities of sinking of the bow end thereof.
  • Trim of the vessel is additionally improved by the provision of the hull A advantageously extending beyond the water jet outlets at the stem of the vessel. It must herein be noted that the vessel of the invention sinks when coming at a standstill in ports without creating the intense highly undesirable waves of conventional vessels, since the propulsive water jets thereof are disposed at a considerable depth.
  • each one of the lift producing foils C 1 , C 2 , C 3 having a hydrofoil section with a leading edge oriented in the direction of the bow and being provided with vertically extending and longitudinally oriented, substantially parallel to the interior planar surfaces of blades B 1 , B 2 , central supporting plates C 1 ′, C 2 ′, C 3 ′ respectively, wherein central plates C 1 ′, C 2 ′, C 3 ′ of the lift producing foils C 1 , C 2 , C 3 are fixedly mounted onto the hull A.
  • Each one of the vertically extending central supporting plates C 1 ′, C 2 ′, C 3 ′ respectively of the lift producing foils C 1 , C 2 , C 3 is perforated with apertures 10 through which water flows freely on either side of the supporting plates C 1 ′, C 2 ′, C 3 ′ thereby balancing pressures if any that may be due to a sideward inclination of the vessel.
  • Each one of the lift producing foils C 1 , C 2 , C 3 has a differentiated configuration and is located at a differentiated distance from the vessel's waterline during cruising and at a differentiated distance relatively to the lateral vertically oriented blades B 1 , B 2 .
  • the first fore lift producing foil C 1 is located at a certain distance from the bottom edges of blades B 1 , B 2 and the third aft lift producing foil C 3 is located at a level lower than the fore lift producing foil C 1 with the distance thereof from the bottom edges of blades B 1 , B 2 tending to zero.
  • Both the fore lift producing foil C 1 and the aft lift producing foil C 3 are being oriented perpendicularly onto the interior planar surfaces of blades B 1 , B 2 , wherein, due to the differentiated distance of the fore lift producing foil C 1 and of the aft lift producing foil C 3 from the bottom edges of blades B 1 , B 2 , a counterclockwise rotational moment arises, such rotational moment increasing as the speed of the vessel increases.
  • This rotational moment eliminates the otherwise successively occurring undesirable rising of the bow of the vessel and subsequent falling thereof as the vessel cruises at high speed, such bow rising and falling being associated with the undesirable periodical hard strokes of the vessel into the water mass and may also lead into a tendency of the vessel being overturned.
  • R a denotes the frictional resistance of the water mass and R b denotes the lifting capacity of the vertically extending lateral blades B 1 , B 2 .
  • the intermediate lift producing foil C 2 comprises two identical portions C 2 a , C 2 b symmetrically extending on one and the other side of the vertically extending central supporting plate C 2 ′ by means of which the intermediate lift producing foil C 2 is connected to the hull A.
  • the symmetrically oriented identical portions C 2 a , C 2 b form an obtuse angle so as to render an overall configuration of inverse V of the intermediate lift producing foil C 2 .
  • the abovementioned intermediate lift producing foil C 2 is located at a certain distance from the bottom edges of the blades B 1 , B 2 , higher than the fore and aft lift producing foils C 1 , C 3 thereby producing, in addition to the lift effect, a laminar flow with the water masses being directed towards the centre of the channel being formed in between the vertically extending blades B 1 , B 2 thereby enhancing the kinetic energy thereof.
  • the intermediate lift producing foil C 2 is preferably located at the end of the slightly convergent portion of the channel being formed in between blades B 1 , B 2 , whereby the span of the intermediate lift producing foil C 2 is less than the span of either the fore lift producing foil C 1 or the span of the aft lift producing foil C 3 .
  • the horizontally extending lift producing foils C 1 , C 2 , C 3 are protected by excessive sea waves, that do not up today permit employment of hydrofoil crafts in open seas, by means of the vertically extending blades B 1 , B 2 within which they are enclosed, whilst through these blades B 1 , B 2 the lifting effect is being transferred to the overall structure of the vessel. It is hereby noted that the connections of the horizontally extending foils to the vertically extending lateral blades and to the hull of the vessel consist a substantially strengthened overall structure of the vessel.
  • the arrangement of the three lift producing foils horizontally extending along the direction of axis x, with the differentiated height of mounting and differentiated design thereof is aimed at obtaining an optionally laminar flow through the channel being formed between the interior surfaces of vertically extending lateral blades B 1 , B 2 .
  • the differentiated height of mounting and differentiated design thereof is aimed at obtaining an optionally laminar flow through the channel being formed between the interior surfaces of vertically extending lateral blades B 1 , B 2 .
  • the fore lift producing foil C 1 is provided with a complex bulb structure 11 extending longitudinally along the bottom of the lift producing foil C 1 underneath the central supporting plate C 1 ′ thereof, wherein the abovementioned complex bulb structure 11 protrudes afore the leading edge of the fore lift producing foil C 1 and acts so as to smoothly guide the water mass onto this fore lift producing foil C 1 and avert hydraulic strokes thereupon.
  • Fins 11 a , 11 b are also being provided on either side of the complex bulb structure 11 longitudinally along the bottom of the fore lift producing foil C 1 , wherein these side fins 11 a , 11 b lag behind the forwardly protruding bulb structure 11 along only a portion of the length of foil C 1 , and act so as to damp wave making and to enhance the effect of the centrally oriented protruding complex bulb structure 11 .
  • the fore lift producing foil C 1 acts so as to handle both longitudinally and sideward acting torques, thereby playing the role of stabilizing blades of conventional vessels.
  • the intermediate lift producing foil C 2 with the afore mentioned characteristic configuration of an inverse V contributes in the optimization of laminar flow characteristics, but it is otherwise not absolutely necessary in obtaining the desired lifting effect that may be obtained only by means of the combined effect of the fore and aft lift producing foils C 1 , C 3 .
  • the aft lift producing foil C 3 comprises an arrangement of three conically shaped fins 12 protruding afore the leading edge thereof, wherein a first one of the three conically shaped fins 12 lies longitudinally along the central supporting plate C 3 ′ and the other two conically shaped fins 12 lie symmetrically along one and the other side of the aft lift producing foil C 3 , rightwards and leftwards relatively to the central supporting plate C 3 ′, wherein all these three conically shaped fins 12 protrude afore the leading edge of the aft lift producing foil C 3 and act so as to eliminate turbulent vortices resulting from the wake of the preceding lift producing foils C 1 , C 2 and smoothen pressures and speeds of the water masses falling onto the aft lift producing foil C 3 .
  • a characteristic feature of the vessel of the invention as becomes evident from the test model specimen thereof being depicted in FIG. 11 is that the hull A does not come in contact with the sea surface whilst the craft is cruising and has a substantially planar square cross section thereby providing enhanced cargo loading capacity.
US11/989,666 2005-08-17 2006-08-17 Open sea hydrofoil craft Abandoned US20100089303A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GR20050100431A GR1005344B (el) 2005-08-17 2005-08-17 Υδροπτερυγο σκαφος ανοικτης θαλασσης
GR20050100431 2005-08-17
PCT/GR2006/000041 WO2007020480A1 (en) 2005-08-17 2006-08-17 Open sea hydrofoil craft

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US20100089303A1 true US20100089303A1 (en) 2010-04-15

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US11/989,666 Abandoned US20100089303A1 (en) 2005-08-17 2006-08-17 Open sea hydrofoil craft

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US (1) US20100089303A1 (zh)
EP (1) EP1922245A1 (zh)
KR (1) KR20080043357A (zh)
CN (1) CN101242988A (zh)
GR (1) GR1005344B (zh)
WO (1) WO2007020480A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10017227B2 (en) * 2016-12-13 2018-07-10 Naviform Consulting & Research Ltd. Minimum wave bow
CN111422297A (zh) * 2020-04-09 2020-07-17 李中应 一种舰船自动力多途径加速装置
US11751551B2 (en) * 2021-04-15 2023-09-12 Bradley David Cahoon Hydrofoil fishing lure apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2728819C (en) * 2011-01-18 2018-01-09 Aeromarine Innovations Inc. Improved hybrid boat hull
GB201710201D0 (en) * 2017-06-16 2017-08-09 Wavefoil As Retractable foil mechanism
CN107878670B (zh) * 2017-11-14 2023-09-26 华南理工大学 小回转半径箱式连接桥远距离海水采样太阳能双体无人船
CN110395348A (zh) * 2019-08-23 2019-11-01 上海蕤洋海洋工程技术有限公司 多体船
CN111469977B (zh) * 2020-03-26 2021-01-08 广东海洋大学 一种可提高船体行进速度的节能滑行器
CN112693557B (zh) * 2021-01-15 2022-11-11 上海析易船舶技术有限公司 一种具有多个独立弹性滑行面的分体式断级滑行艇

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917754A (en) 1955-12-27 1959-12-22 Charles F Gunderson Catamarans
DE2428794C2 (de) * 1974-06-14 1976-04-29 Aktien-Gesellschaft Weser, 2800 Bremen Zweirumpfschiff (Tragflügel)
IT1125295B (it) * 1976-10-28 1986-05-14 Cantiere Navaltecnica Spa Catamarano con ali protanti stabilizzato giroscopicamente
GB2088290B (en) * 1980-11-07 1985-10-09 Die Buro Vir Meganiese Ingenie Hydrofoil craft
NO986169L (no) * 1998-12-29 2000-06-30 Jorde Jens Herman Anordning ved foilsystem for fartøyer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10017227B2 (en) * 2016-12-13 2018-07-10 Naviform Consulting & Research Ltd. Minimum wave bow
CN111422297A (zh) * 2020-04-09 2020-07-17 李中应 一种舰船自动力多途径加速装置
US11751551B2 (en) * 2021-04-15 2023-09-12 Bradley David Cahoon Hydrofoil fishing lure apparatus

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Publication number Publication date
WO2007020480A1 (en) 2007-02-22
KR20080043357A (ko) 2008-05-16
EP1922245A1 (en) 2008-05-21
GR1005344B (el) 2006-10-30
CN101242988A (zh) 2008-08-13

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