CN104925241B - A kind of double tail wing flap airfoil wind sails of telescopic type - Google Patents
A kind of double tail wing flap airfoil wind sails of telescopic type Download PDFInfo
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- CN104925241B CN104925241B CN201510318178.5A CN201510318178A CN104925241B CN 104925241 B CN104925241 B CN 104925241B CN 201510318178 A CN201510318178 A CN 201510318178A CN 104925241 B CN104925241 B CN 104925241B
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Abstract
The present invention discloses a kind of double tail wing flap airfoil wind sails of ship telescopic type, and sail body component includes the mainsail of forefront, middle preceding tail wing flap sail, the rear tail wing flap sail at rear portion；Anterior sail mast lower end is connected to base, and middle, the sail mast lower end at rear portion respectively connects a corresponding railcar；Engine connects anterior sail mast lower end by a pair of engaged gears, and the sail mast lower end at middle and rear portion connects corresponding electric rotating machine by corresponding a pair of engaged gears；In reefing state, preceding tail wing flap sail is brought into close contact by its variable curvature airfoil with the variable curvature cancave cambered surface on mainsail, and rear tail wing flap sail is brought into close contact by its variable curvature airfoil with the variable curvature cancave cambered surface on preceding tail wing flap sail；In state to unfurl, the gap of transverse direction before and after being left between mainsail and preceding tail wing flap sail, between preceding tail wing flap sail and rear tail wing flap sail makes the high pressure draught in the face of lowering the sail flow to upper sail face by gap, can delay the separation of air-flow, improves the aerodynamic quality of sail.
Description
Technical field
The present invention relates to a kind of ship sail, and in particular to contractile pair of tail wing flap airfoil wind sail.
Background technology
Ship sail material develops into hard sail by soft sail, sail sail type have triangular form, four side types, camber,
Aerofoil profile.It is airfoil wind sail to currently use more, and the upper surface of airfoil wind sail is in bending, and lower surface is flatter, thus with
When air occurs relative motion, distance that the air of upper surface passes by within the same time is flowed through than flowing through the air of lower surface
Distance is remote, so the relative velocity ratio in the air of upper surface is small in the relative velocity of the air of lower surface.According to Bernoulli Jacob
Theorem：Fluid is inversely proportional to the pressure that the material of surrounding is produced with the relative velocity of fluid, thus airfoil wind sail upper surface sky
Gas is applied to the pressure that the pressure of the wing is applied to the wing less than the air of lower surface, two-way pressure make a concerted effort it is inevitable upwards, this is just produced
Lift is given birth to, has made airfoil wind sail by wind-force navaid.
At present, one or more groups of sails are typically set up on ship and carrys out navaid, but sail is all using fixed sail face, although
With folding and retraction and adjustment sail angle, but can cannot increase main wind area, wind energy utilization is relatively low.
China Patent Publication No. describes a kind of socket joint type sail-assisted propulsion device for the patent document of CN203528797, by
The composition such as rotating base and the hydraulic lifting arm of rotating base upper end connection, the sail body being arranged on hydraulic lifting arm；Liquid
Pressure elevating lever is set in more piece；Sail body is the structure that can be stretched along hydraulic lifting arm, and the device can shrink up and down automatically
Sail, improves vessel stability and deck occupancy.But, it equally exists weak point is：Its sail type is merely capable of receiving up and down
Contracting, though being conducive to vessel stability, wind area is not changed, and the thrust effect that sail is produced is not improved, and helps
Boat performance is improved.
The content of the invention
It is an object of the invention to solve the problems, such as existing sail, there is provided a kind of double tail wing flap aerofoil profile wind of telescopic type
Sail, by setting the different moveable aft flaps of two length, wind area is considerably increased when it launches, and is effectively solved
The effective wind area of Traditional Sail of having determined can not increased problem, raising sail thrust effect and wind energy utilization.
In order to achieve the above object, used following technical scheme of the invention is realized：The present invention includes sail body component, frame set
Part and deck transmission component, deck transmission component are fixed and are located on ship deck, and transmission component top in deck is frame assembly, frame
Fixed and arranged has sail body component on frame component, behind mainsail of the sail body component including forefront, middle preceding tail wing flap sail, rear portion
Tail wing flap sail；Mainsail rear portion one side is the variable curvature cancave cambered surface being recessed to mainsail center line, and preceding tail wing flap sail front portion one side is
Variable curvature concave arc face curvature identical variable curvature airfoil in curvature and mainsail, preceding tail wing flap sail rear portion one side is forward
The variable curvature cancave cambered surface of tail wing flap sail center line depression, it is bent with change on preceding tail wing flap sail that rear tail wing flap sail front portion one side is curvature
The curvature identical variable curvature airfoil of rate cancave cambered surface；In reefing state, preceding tail wing flap sail by its variable curvature airfoil with
Variable curvature cancave cambered surface on mainsail is brought into close contact, and rear tail wing flap sail is bent by the change on its variable curvature airfoil and preceding tail wing flap sail
Rate cancave cambered surface is brought into close contact；In state to unfurl, between mainsail and preceding tail wing flap sail, between preceding tail wing flap sail and rear tail wing flap sail
The gap of transverse direction before and after leaving.
Further, the frame assembly includes base, two transversal stretching bars, three sail masts, and base is fixed
In the front portion on deck, three sail masts are arranged and perpendicular to deck from front to back, and three sail mast upper ends are respectively fixedly connected with
At corresponding mainsail, preceding tail wing flap sail, the geometric center of rear tail wing flap sail；Anterior sail mast lower end is connected to base, middle,
The sail mast lower end at rear portion respectively connects a corresponding railcar；A transversal stretching bar is connected between three sail mast tops,
Another transversal stretching bar is connected between three sail mast foots, is connected with bearing between sail mast and transversal stretching bar, it is described
Transversal stretching bar be nested type can transversal stretching telescoping structure, three sail masts be nested type can vertical telescopic set
Core structure；Chassis interior is provided with hydraulic means and engine, and engine connects anterior sail mast by a pair of engaged gears
Lower end, hydraulic means connects sail mast by hydraulically extensible bar；One fixation is set below two railcars above deck
Track, is equipped with motor, electric rotating machine and a pair of engaged gears in each railcar；Motor drives railcar along track
Front and rear walking；The middle and sail mast lower end at rear portion passes through transversal stretching bar and corresponding by the connection of corresponding a pair of engaged gears
Electric rotating machine.
The present invention has advantages below compared with prior art：
1st, the present invention upon deployment, is stayed between mainsail and preceding tail wing flap sail, between preceding tail wing flap sail and rear tail wing flap sail
There is gap, be the structure of double gaps of cracking, the high pressure draught in the face of lowering the sail is flowed to upper sail face by gap, dividing for air-flow can be delayed
From so as to greatly improve the aerodynamic quality of sail.
2nd, sail body component of the invention is set using gradient, and top-down cross-sectional area is gradually reduced, preferably profit
With the gradient principle of wind,
3rd, sail face of the invention and mast, using liftable mast, make sail main body automatic using set embedded stretching structure
It is flexible, be conducive to the stationarity of ship, while being easy to C＆M.
4th, each sail body of the invention can independently rotate, while preceding tail wing flap sail, rear tail wing flap sail can realize horizontal receipts
Put, when sail is packed up, mainsail, preceding tail wing flap sail and rear tail wing flap sail are nested together, and reduce deck area occupied, also favorably
In ship stationarity.
5th, the present invention is set using the mainsail arc special with preceding tail wing flap sail, realizes that three sail bodies are brought into close contact, and launches
When can increase sail lifting surface area again, greatly improve wind energy utilization.
Brief description of the drawings
The present invention is further elaborated below in conjunction with the drawings and specific embodiments：
Fig. 1 is a kind of structural representation of the double tail wing flap airfoil wind sails of telescopic type of the invention in state to unfurl.
Fig. 2 is the sail face top perspective view of the sail body component 1 in Fig. 1；
Fig. 3 is the attachment structure schematic diagram of Fig. 1 middle frames component 2 and deck transmission component 3；
Fig. 4 is A close-up schematic views in Fig. 3, is the top of sail mast 24 and mainsail 11, the connection knot of transversal stretching bar 23
Structure enlarged diagram；
Fig. 5 is B close-up schematic views in Fig. 3；It is the inside of base 21 and sail mast 24, the connection knot of transversal stretching bar 23
Structure enlarged diagram；
Fig. 6 is C close-up schematic views in Fig. 3；It is the inside of railcar 32 and sail mast 24, the connection of transversal stretching bar 23
Structure enlarged diagram；
Fig. 7 is Fig. 1 in reefing view；
Fig. 8 is the elevation cross-sectional view of Fig. 7；
Sail face top plan view when Fig. 9 is Fig. 7 reefing states；
Figure 10 is the D close-up schematic views in Fig. 9.
In figure：1 sail body component；2 frame assemblies；3 deck transmission components；11 mainsails；Tail wing flap sail before 12；Tail wing flap after 13
Sail；21 bases；22 hydraulically extensible bars；23 transversal stretching bars；24 sail masts；31 tracks；32 railcars；111 variable curvature cancave cambered surfaces,
121 variable curvature airfoils；122 variable curvature cancave cambered surfaces；131 variable curvature airfoils；211 engines；212 hydraulic means；213 a pair
Meshing gear；231 bearings；321 motors；322 electric rotating machines, 323 a pair of engaged gears.
Specific embodiment
Shown in Figure 1, the present invention includes sail body component 1, frame assembly 2, deck transmission component 3.Deck transmission component 3
It is fixedly mounted on ship deck, on deck, the top of transmission component 3 is frame assembly 2, fixed and arranged sail body group on frame assembly 2
Part 1.
Referring to shown in Fig. 1 and Fig. 2, sail body component 1 is included：The mainsail 11 of forefront, middle preceding tail wing flap sail 12, rear portion
Rear tail wing flap sail 13.Sail body component 1 is arranged on frame assembly 2, and order of placement is according to this from front to back mainsail 11, the preceding tail flap
Wing sail 12, rear tail wing flap sail 13.Mainsail 11, preceding tail wing flap sail 12, rear tail wing flap sail 13 have upper, middle and lower-ranking respectively, same
The upper, middle and lower-ranking of wing sail is connected in turn by internal flanging.The area of the cross section of upper, middle and lower-ranking is from upper
Reduce in gradient to lower.Mainsail 11, preceding tail wing flap sail 12 at sustained height, the face of the cross section of rear tail wing flap sail 13
Product is sequentially reduced, i.e., at same vertical height, the area of the cross section of mainsail 11 is more than the cross section of preceding tail wing flap sail 12
Area, the area of the area more than the cross section of rear tail wing flap sail 13 of the cross section of preceding tail wing flap sail 12.
It is in symmetrical airfoil that mainsail 11 is overall, and preferred aerofoil profile is NACA0021.The rear portion one side of mainsail 11 is to mainsail
The variable curvature cancave cambered surface 111 of 11 center lines depression, the anterior one side of preceding tail wing flap sail 12 is variable curvature airfoil 121, variable curvature
The curvature of airfoil 121 is identical with variable curvature cancave cambered surface 111.It is in symmetrical airfoil, rear tail wing flap sail 13 that preceding tail wing flap sail 12 is overall
Overall is in symmetrical airfoil, and the rear portion one side of preceding tail wing flap sail 12 is the variable curvature cancave cambered surface of the center line of tail wing flap sail 12 depression forward
122, the anterior one side of rear tail wing flap sail 13 is variable curvature airfoil 131, and the curvature of variable curvature airfoil 131 is recessed with variable curvature
The curvature of cambered surface 122 is identical.When sail body component 1 is folded in reefing state, preceding tail wing flap sail 12 passes through its variable curvature aerofoil profile
Face 121 is brought into close contact with the variable curvature cancave cambered surface 111 of mainsail 11, rear tail wing flap sail 13 by its variable curvature airfoil 131 with it is preceding
The variable curvature cancave cambered surface 122 of tail wing flap sail 12 is brought into close contact.In state to unfurl, between mainsail 11 and preceding tail wing flap sail 12, preceding
Before and after being left because of the presence of variable curvature cancave cambered surface 111, variable curvature cancave cambered surface 122 between tail wing flap sail 12 and rear tail wing flap sail 13
Horizontal gap.
Referring to Fig. 1 and Fig. 3, frame assembly 2 is included：One 23, three, transversal stretching bar sail mast 24 of base 21, two.
The front portion that wherein base 21 is fixed on deck, three sail masts 24 arrange from front to back, are each perpendicular to deck, anterior sail mast
The upper end of bar 24 is fixedly connected at the geometric center of mainsail 11, the anterior lower end connect base 21 of sail mast 24；Middle sail mast
The upper end of bar 24 is fixedly connected at the geometric center of preceding tail wing flap sail 12, the anterior railcar of the middle lower end of sail mast 24 connection
32；The upper end of sail mast 24 at rear portion is fixedly connected at the geometric center of rear tail wing flap sail 13, and the lower end of sail mast 24 at rear portion leads to
Later the railcar 32 in portion.
The area of the cross section of three sail masts 24 at sustained height is sequentially reduced, i.e., the bar footpath of sail mast 24 by slightly to
Carefully.A transversal stretching bar 23 is connected between three tops of sail mast 24, is connected between three bottoms of sail mast 24
Another transversal stretching bar 23.Transversal stretching bar 23 be nested type can transversal stretching telescoping structure, three sail masts 24 are
Nested type can vertical telescopic telescoping structure, transversal stretching bar 23 and sail mast 24 are part purchased in market.
Below railcar 32, set between two railcars 32 and between the railcar 32 of base 21 and front portion
A track 31 is put, track 31 is fixed above deck.Transversal stretching bar 23 is parallel with track 31, is each perpendicular to sail mast 24.
As shown in Figure 3 and Figure 4, by taking the mounting structure on the anterior top of sail mast 24 as an example, the anterior top of sail mast 24
It is fixedly connected with mainsail 11 through the through hole at the geometric center of mainsail 11, and horizontal stretching is connected to by first bearing 231
Contracting bar 23.Similarly, the middle top of sail mast 24 passes through the through hole and preceding tail wing flap at the geometric center of preceding tail wing flap sail 12
Sail 12 is fixedly connected, and is connected to transversal stretching bar 23 by second bearing 231；The top of sail mast 24 at rear portion passes through rear tail
Through hole at the geometric center of wing flap sail 13 is fixedly connected with rear tail wing flap sail 13, and is connected to horizontal stroke by the 3rd bearing 231
To expansion link 23.Three sail masts 24 are free to rotate.
Referring to Fig. 3 and Fig. 5, the inside of base 21 sets transmission device and hydraulic means 212.Transmission device starts including one
Machine 211, engine 211 connects the lower end of the sail mast 24 of front portion by a pair of engaged gears 213, drives anterior sail mast 24
Rotate, so as to drive mainsail 11 to rotate.Hydraulic means 212 installs the fore bottom of sail mast 24, by hydraulically extensible bar 22
Connection sail mast 24, inside the fore sail mast 24 of 22 sets of hydraulically extensible bar.Hydraulically extensible bar 22 is driven by hydraulic means 212
Upper and lower folding and unfolding realizes the folding and unfolding of sail body component 1 so as to the anterior sail mast 24 of folding and unfolding.Anterior sail mast 24 passes through the 4th axle
Hold the front portion of 231 connection transversal stretching bars 23.
Referring to Fig. 3 and Fig. 6, deck transmission component 3 is included：One track 31 and two railcars 32, track 31 are arranged in
On deck, two railcars 32 are arranged on track 31.In each railcar 32 install motor 321, electric rotating machine 322,
A pair of engaged gears 323.Referring to Fig. 6, it is illustrated by taking the anterior structure of railcar 32 as an example below：Motor 321 drives
Railcar 32 is along walking before and after track 31.The middle lower end of sail mast 24 passes through transversal stretching bar 23, logical with transversal stretching bar 23
Cross the 5th bearing 231 to connect, corresponding sail mast 24 is rotated relative to horizontal transversal stretching bar 23.Under sail mast 24
End connects electric rotating machine 322 by a pair of engaged gears 323.The connection of the structure of railcar 32 at rear portion and the railcar 32 of front portion
Structure is identical.Electric rotating machine 322 drives a pair of engaged gears 323 to drive corresponding sail mast 24 to rotate, so as to drive the preceding tail flap
Wing sail 12, rear tail wing flap sail 13 are rotated.
Referring to Fig. 1-6 and Fig. 7, Fig. 8, during telescopic type of the present invention pair tail wing flap airfoil wind sail reefing, motor 321
Worked simultaneously with electric rotating machine 322, motor 321 drives the direction of base 21 forwards of railcar 32 to make transverse movement, from
And driven preceding tail wing flap sail 12 to make transverse movement to the direction of mainsail 11 with rear tail wing flap sail 13.Meanwhile, two electric rotating machines 322
The sail mast 24 of centre and the sail mast 24 at rear portion is driven to rotate by corresponding a pair of engaged gears 323 respectively, so as to drive
Preceding tail wing flap sail 12, rear tail wing flap sail 13 are rotated, and sail angle are adjusted according to transverse shifting in real time, when two railcars 32 are transported
When moving terminal, the variable curvature airfoil 121 of preceding tail wing flap sail 12 is just closely pasted with the variable curvature cancave cambered surface 111 of mainsail 11
Close, the variable curvature cancave cambered surface 122 of the variable curvature airfoil 131 of rear tail wing flap sail 13 just with preceding tail wing flap sail 12 is brought into close contact.
While transverse movement, vertical folding and unfolding campaign can also be carried out simultaneously, and the hydraulic means 212 inside base 21 works, band hydrodynamic
The pressure vertical contraction of expansion link 22, so as to drive the sail mast 24 of front portion to shrink, due to Action of Gravity Field, sail body component 1 can be with sail mast
The vertical decline of bar 24, realizes telescopic packing up.
Referring to shown in Fig. 9, Figure 10, in sail reefing state, sail body component 1 is nested together, preceding tail wing flap sail 12 with it is main
Sail 11 is brought into close contact, and rear tail wing flap sail 13 is brought into close contact with preceding tail wing flap sail 12.
When sail is hoisted a sail, three sail masts 24 are moved upwards, drive upper strata sail body to move upwards, upper strata sail body band successively
Dynamic middle level, lower floor's sail body launch, while the transverse movement backward of tail wing flap sail 13 after the railcar 32 of deck transmission component 3 drives,
Tail wing flap sail 13 is overall with preceding tail wing flap sail 12 afterwards launches.When change of the wind, the present invention can utilize base 21 and railcar
Electric rotating machine in 32 drives sail mast to rotate, so as to realize mainsail 11, preceding tail wing flap sail 12 and rear tail wing flap sail 13
Rotate.
Claims (4)
1. a kind of double tail wing flap airfoil wind sails of telescopic type, including sail body component（1）, frame assembly（2）With deck transmission component
（3）, deck transmission component（3）Fixation is located on ship deck, deck transmission component（3）Top is frame assembly（2）, frame set
Part（2）Upper fixed and arranged has sail body component（1）, sail body component（1）Mainsail including forefront（11）, middle preceding tail wing flap sail
（12）, rear portion rear tail wing flap sail（13）；Mainsail（11）Rear portion one side is to mainsail（11）The variable curvature concave arc of center line depression
Face（111）, preceding tail wing flap sail（12）Anterior one side is curvature and mainsail（11）On variable curvature cancave cambered surface（111）Curvature is identical
Variable curvature airfoil（121）, preceding tail wing flap sail（12）Rear portion one side is tail wing flap sail forward（12）The change of center line depression is bent
Rate cancave cambered surface（122）, rear tail wing flap sail（13）Anterior one side is curvature and preceding tail wing flap sail（12）On variable curvature cancave cambered surface
（122）Curvature identical variable curvature airfoil（131）；In reefing state, preceding tail wing flap sail（12）By its variable curvature wing
Type face（121）With mainsail（11）On variable curvature cancave cambered surface（111）It is brought into close contact, rear tail wing flap sail（13）By its variable curvature wing
Type face（131）With preceding tail wing flap sail（12）On variable curvature cancave cambered surface（122）It is brought into close contact；In state to unfurl, mainsail（11）
With preceding tail wing flap sail（12）Between, preceding tail wing flap sail（12）With rear tail wing flap sail（13）Between leave before and after transverse direction gap,
It is characterized in that：The frame assembly（2）Comprising a base（21）, two pieces transversal stretching bars（23）, three pieces sail masts（24）, bottom
Seat（21）The front portion being fixed on deck, three sail masts（24）Arrange from front to back and perpendicular to deck, three sail masts
（24）Upper end is respectively fixedly connected with corresponding mainsail（11）, preceding tail wing flap sail（12）, rear tail wing flap sail（13）Geometric center at；
Anterior sail mast（24）Lower end is connected to base（21）, middle, the sail mast at rear portion（24）Lower end respectively connects corresponding one
Railcar（32）；Three sail masts（24）A transversal stretching bar is connected between top（23）, three sail masts（24）Bottom it
Between connect another transversal stretching bar（23）, sail mast（24）With transversal stretching bar（23）Between with bearing connect, the transverse direction
Expansion link（23）For nested type can transversal stretching telescoping structure, three sail masts（24）For nested type can vertical telescopic
Telescoping structure；Base（21）Inside is provided with hydraulic means（212）And engine（211）, engine（211）Nibbled by a pair
Close gear（213）Connect anterior sail mast（24）Lower end, hydraulic means（212）By hydraulically extensible bar（22）Connection front portion
Sail mast（24）；In two railcars（32）Lower section sets fixation track above deck（31）, each railcar（32）
It is upper that motor is housed（321）, electric rotating machine（322）And a pair of engaged gears（323）；Motor（321）Drive railcar
（32）Along track（31）Front and rear walking；The sail mast at middle and rear portion（24）Lower end passes through transversal stretching bar（23）And by correspondence
A pair of engaged gears（323）Connect corresponding electric rotating machine（322）.
2. double tail wing flap airfoil wind sails of a kind of telescopic type according to claim 1, it is characterized in that：Mainsail（11）, the preceding tail flap
Wing sail（12）, rear tail wing flap sail（13）There is upper, middle and lower-ranking respectively, the upper, middle and lower-ranking of same wing sail is by inside
Flanging is connected in turn, and the area of the cross section of upper, middle and lower-ranking reduces in gradient from top to bottom.
3. double tail wing flap airfoil wind sails of a kind of telescopic type according to claim 1, it is characterized in that：At same vertical height
Mainsail（11）, preceding tail wing flap sail（12）, rear tail wing flap sail（13）The area of cross section be sequentially reduced.
4. double tail wing flap airfoil wind sails of a kind of telescopic type according to claim 1, it is characterized in that：Mainsail（11）, the preceding tail flap
Wing sail（12）, rear tail wing flap sail（13）It is in symmetrical airfoil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318178.5A CN104925241B (en) | 2015-06-11 | 2015-06-11 | A kind of double tail wing flap airfoil wind sails of telescopic type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318178.5A CN104925241B (en) | 2015-06-11 | 2015-06-11 | A kind of double tail wing flap airfoil wind sails of telescopic type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104925241A CN104925241A (en) | 2015-09-23 |
| CN104925241B true CN104925241B (en) | 2017-06-23 |
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| CN201510318178.5A Active CN104925241B (en) | 2015-06-11 | 2015-06-11 | A kind of double tail wing flap airfoil wind sails of telescopic type |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3044289B1 (en) * | 2015-11-30 | 2018-10-05 | Gilles Serre | SEGMENTED RIGID SAIL |
| CN108891569B (en) * | 2018-07-02 | 2020-02-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Marine sail with variable airfoil profile |
| EP3891063A1 (en) * | 2018-12-06 | 2021-10-13 | Ayro | Ship with sail propulsion |
| DE202019102941U1 (en) * | 2019-02-18 | 2019-06-05 | Becker Marine Systems Gmbh | Fixed sails for watercraft, in particular for large ships, and watercraft with rigid sails |
| CN110979507B (en) * | 2019-12-18 | 2020-12-18 | 广西大学 | Polar region variable-area sail robot |
| CN113071645B (en) * | 2021-04-12 | 2022-05-27 | 重庆交通大学 | Telescopic mast sail based on bionic bat idea |
| CN114852301A (en) * | 2022-04-01 | 2022-08-05 | 哈尔滨工程大学 | Auxiliary propulsion device for flap of wave glider |
| CN115009496B (en) * | 2022-05-31 | 2024-05-24 | 武汉船用机械有限责任公司 | Variable airfoil sail for ship and ship |
| CN115071939B (en) * | 2022-06-04 | 2023-11-17 | 西北工业大学 | Follow-up symmetrical front wing sail |
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|---|---|---|---|---|
| US3934533A (en) * | 1973-09-12 | 1976-01-27 | Barry Wainwright | Aerofoil or hydrofoil |
| EP0096554B1 (en) * | 1982-06-04 | 1987-09-09 | Walker Wingsail Systems plc | Sail with retractable air directing element |
| CN1118412C (en) * | 1997-06-24 | 2003-08-20 | 姆拉登·米利德拉戈维奇 | Wing sail and method of use |
| CN102356023A (en) * | 2009-03-16 | 2012-02-15 | 何塞·米格尔·贝穆德斯·米盖尔 | Set of stowable rigid sails |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3934533A (en) * | 1973-09-12 | 1976-01-27 | Barry Wainwright | Aerofoil or hydrofoil |
| EP0096554B1 (en) * | 1982-06-04 | 1987-09-09 | Walker Wingsail Systems plc | Sail with retractable air directing element |
| CN1118412C (en) * | 1997-06-24 | 2003-08-20 | 姆拉登·米利德拉戈维奇 | Wing sail and method of use |
| CN102356023A (en) * | 2009-03-16 | 2012-02-15 | 何塞·米格尔·贝穆德斯·米盖尔 | Set of stowable rigid sails |
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|---|---|
| CN104925241A (en) | 2015-09-23 |
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