Dissimilar sail device

Abstract

The present invention relates to a device and a method for producing, storing and transporting hydrogen, the device being provided with a drum sail and a resistance sail, a lift force acting on the drum sail and a resistance acting on the resistance sail in a direction perpendicular to the lift force when wind blows, whereby the force can be applied in a ship propulsion direction by adjusting the magnitude of the lift force and the resistance.

Description

Technical Field

[0001] The present invention relates to a heterogeneous sail device which uses a rotor sail and a drag sail in combination, and more particularly, to a heterogeneous sail device which uses a rotor sail and a drag sail in combination so as to apply a propulsion force to the running direction of a ship. Background Art

[0002] Under global carbon emission regulations, the International Maritime Organization (IMO) requires that global carbon emissions from ships be reduced by 40% by 2030 compared to 2008.

[0003] According to the plan, carbon emissions will be reduced to 70% by 2050 compared to 2008, so the introduction of environmentally friendly technologies in the shipbuilding industry has become a necessity rather than a choice.

[0004] Therefore, shipbuilding companies are developing LNG fuel supply systems, shaft generator motor systems (environmentally friendly technology that uses the rotational force of the shaft of the ship's propulsion engine in operation to produce electricity), etc. to meet the strengthened environmental regulations.

[0005] A rotor sail is a device installed on a ship that uses wind power to generate power. Such a rotor sail is used to assist or replace the ship's engine, reducing fuel consumption and supporting environmentally friendly operation.

[0006] Unlike traditional sails, rotor sails use wind to move the ship through a rotating device. They are designed to achieve optimal performance by adjusting the speed and angle of the sail according to the direction and size of the wind.

[0007] Rotor sails can be effectively used particularly in long-distance sailing or in areas with excellent wind conditions. Rotor sails have attracted the attention of ship operators who pursue environmentally friendly and economical operations, and the number of ships using rotor sails has increased recently with the development of technology.

[0008] Korean Patent Publication No. 10-2023-0159362 (Published on November 21, 2023)

[0009] Korean Patent Publication No. 10-2023-0150653 (Publication Date: October 31, 2023)

[0010] Korean Patent No. 10-2445902 (grant date September 16, 2022)

[0011] Korean Patent Publication No. 10-2022-0066667 (Published on May 24, 2022) Summary of the invention

[0012] Technical issues

[0013] likeFigure 1 As shown, when the wind blows toward the rotor sail 11, a resistance F is generated along the direction of the wind due to the area of ​​the rotor sail 11. D At this time, if the rotor sail 11 rotates, a pressure difference is generated on both sides of the rotor sail 11, thereby generating a lift F perpendicular to the direction of the wind. L At this time, if the rotation speed of the rotor sail 11 is increased, the lift F L It increases due to the increase of air pressure difference. Figure 2 As shown, when the rotor sail 11 is installed on the ship 1, the resistance F D and lift F L The resultant force F T Acting on the ship 1. Since the lift force is much greater than the drag force, the rotor sail 11 can use the wind blowing toward the side of the ship 1 as the propulsion force of the ship 1.

[0014] At this time, if the wind does not blow from the side of the ship 1, but Figure 3 If the direction shown in FIG. 1 changes, the resultant force F exerted by the rotor sail 11 on the vessel 1 T The direction of the wind is not consistent with the traveling direction of the ship 1. Therefore, additional power is required to propel the ship 1 in the traveling direction. Therefore, in the case of the conventional rotor sail 11, when the wind direction is incorrect, the force acts in a direction different from the propulsion direction, so there is a problem that additional power is required to propel the ship in the traveling direction of the ship.

[0015] The present invention aims to solve the above-mentioned problems. An object of the present invention is to provide a heterogeneous sail device that can apply force in the propulsion direction of a ship even when the wind direction is incorrect.

[0016] Technical Solution

[0017] The heterogeneous sail device of the present invention includes a rotor sail mechanism and a drag sail mechanism. The rotor sail mechanism is installed on a ship and has a rotor sail that rotates when wind blows and causes the lift generated by the pressure difference to act on the ship. The drag sail mechanism is installed on the ship and has a drag sail that causes the resistance generated by the wind to act on the ship. And, by adjusting the size of at least one of the resistance and the lift, the combined force of the forces of the rotor sail and the drag sail acting on the ship acts on the traveling direction of the ship.

[0018] Furthermore, in the heterogeneous sail device, it is preferable that the resistance sail mechanism can adjust the area of ​​the resistance sail so as to adjust the magnitude of the resistance.

[0019] Furthermore, in the heterogeneous sail device, it is preferred that the resistance sail mechanism can adjust the angle of the resistance sail according to the direction from which the wind blows.

[0020] Furthermore, in the heterogeneous sail device, it is preferred that the drag sail and the rotor sail are coaxial.

[0021] In addition, in the heterogeneous sail device, it is preferred that the rotor sail mechanism further comprises a driving component, a driving motor, a power transmission unit, and a magnetic bearing unit. The driving component is installed inside the rotor sail in a manner combined with the rotor sail to rotate the rotor sail. The power transmission unit rotates the driving component in order to rotate the rotor sail using the power of the driving motor. The magnetic bearing unit supports the driving component using magnetic force to reduce the friction of the rotor sail.

[0022] In addition, in the heterogeneous sail device, the drag sail mechanism further includes a support plate, a direction adjustment motor, and a motor power transmission unit. The support plate is installed inside the rotary sail in a manner capable of supporting the drag sail. The motor power transmission unit rotates the support plate using the power of the direction adjustment motor to adjust the angle of the drag sail.

[0023] Effects of the Invention

[0024] According to the present invention, the heterogeneous sail device includes a rotor sail and a drag sail. Therefore, when wind blows, lift acts on the rotor sail, and drag acts on the drag sail in a direction perpendicular to the lift, so by adjusting the magnitude of lift and drag, force can be applied in the direction of ship propulsion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a conceptual diagram of the drag and lift acting on a rotor sail when the wind blows.

[0026] Figure 2 This is a conceptual diagram of the forces acting when a rotor sail is installed on a ship.

[0027] Figure 3 This is a conceptual diagram of the force exerted by the rotor sail on the ship when the wind changes direction.

[0028] Figure 4 This is a conceptual diagram of the heterogeneous sail device of this embodiment.

[0029] Figure 5 yes Figure 4 sectional view of .

[0030] Figure 6 This is a conceptual diagram of the forces acting on a ship from a rotor sail and a drag sail when the wind blows.

[0031] Figure 7 This is a conceptual diagram of the force applied to the ship by the heterogeneous sail device of this embodiment when the wind blows from behind.

[0032] Figure 8This is a conceptual diagram of the forces acting on the ship by the heterogeneous sail device of this embodiment when winds blow from different directions.

[0033] 1: ship, 10: rotor sail mechanism, 11: rotor sail, 13: driving component, 15: driving motor, 17: power transmission unit, 19: magnet bearing unit, 20: resistance sail mechanism, 21: resistance sail, 23: support plate, 25: direction adjustment motor, 27: motor power transmission unit, 29: magnet bearing unit. DETAILED DESCRIPTION

[0034] Reference Figures 4 to 8 An embodiment of the heterogeneous sail device of the present invention will be described.

[0035] The heterogeneous sail device of the present invention includes a rotor sail mechanism 10 and a drag sail mechanism 20 .

[0036] The rotor sail mechanism 10 is installed on the ship 1, and rotates when the wind blows, so that the lift generated by the pressure difference acts on the ship 1. To this end, the rotor sail mechanism 10 includes a rotor sail 11, a driving member 13, a driving motor 15, a power transmission unit 17, and a magnetic bearing unit 19. The rotor sail 11 is cylindrical and is installed on the ship 1 in a rotatable manner. When the wind blows toward the rotor sail 11, resistance is generated in the rotor sail 11 in the direction of the wind, and when the rotor sail 11 rotates, lift acts in a direction at right angles to the direction of the wind. Here, the magnitude of the resistance varies depending on the cross-sectional area of ​​the rotor sail 11, and the magnitude of the lift varies depending on the rotation speed of the rotor sail 11.

[0037] The driving component 13 is installed inside the rotor sail 11 in a manner of being combined with the rotor sail 11 to rotate the rotor sail 11. The driving motor 15 generates a rotational force of the rotor sail 11. The power transmission unit 17 rotates the driving component 13 to rotate the rotor sail 11 using the power of the driving motor 15. The magnetic bearing unit 19 supports the driving component 13 using magnetic force to reduce the friction of the rotor sail 11.

[0038] Therefore, when the driving motor 15 is operated, the driving member 13 is rotated through the power transmission unit 17 , thereby rotating the rotor sail 11 .

[0039] The resistance sail mechanism 20 is installed on the ship 1, and causes the resistance generated by the wind to act on the ship 1. To this end, the resistance sail mechanism 20 includes a resistance sail 21, a support plate 23, a direction adjustment motor 25, and a motor power transmission unit 27. The resistance sail 21 generates resistance when the wind blows. In the present embodiment, the resistance sail 21 is installed inside the rotor sail 11 in a manner coaxial with the rotor sail 11. In addition, the area of ​​the resistance sail 21 is variable so that the size of the resistance can be adjusted. That is, the size of the area can be adjusted. In the present embodiment, a sail that can be installed inside the rotor sail 11 and unfolded to the outside is used as the resistance sail 21. Therefore, when the resistance sail 21 is unfolded to the outside, the area increases and resistance is generated.

[0040] In this embodiment, a sail is used as the resistance sail 21, but a wing of a wind turbine with an adjustable area can be used, etc. In this case, not only can the wind be used to generate resistance, but also the wind can be connected to a generator to generate electricity.

[0041] The support plate 23 is installed inside the rotor sail 11 and supports the resistance sail 21. That is, the resistance sail 21 is installed on the upper part of the support plate 23. The direction adjustment motor 25 is installed inside the rotor sail 11, and generates power for rotating the support plate 23 so as to change the direction of the resistance sail 21. The motor power transmission part 27 rotates the support plate 23 by receiving the power of the direction adjustment motor 25. The direction of wind blowing is not constant, and the direction is changing. Therefore, in order to make the resistance sail 21 face the direction of wind blowing, the support plate 23 is rotated by driving the direction adjustment motor 25.

[0042] Like the rotor sail mechanism 10 , the resistance sail mechanism 20 also includes a magnet bearing portion 29 , so that friction can be reduced when the resistance sail 21 rotates.

[0043] like Figure 6 As shown, when the wind blows toward the rotor sail 11 and the different sails of the resistance sail 21, a resistance F is generated on the rotor sail 11 in the direction of the wind. D1 , generating lift F in the direction perpendicular to the wind direction L , and the resistance sail 21 generates a resistance F D2 Therefore, when the rotor sail 11 and the drag sail 21 are installed on the ship 1, the resultant force F T Acts on ship 1.

[0044] like Figure 7 As shown in FIG. 1 , when the wind blows in the direction of the ship 1, the drag sail 21 is completely exposed outside the rotor sail 11, and the direction adjustment motor 25 is running, so that the drag sail 21 faces the direction of the wind. At this time, the rotor sail 11 does not rotate, but only generates resistance. Therefore, the resistance F generated by the rotor sail 11 is D1 and the resistance F generated by the resistance sail 21 D2The combined force of the two forces acts in the direction of travel of the ship. The ship 1 can obtain propulsion only through resistance.

[0045] like Figure 2 As shown, when the wind blows from the side of the ship 1, the drag sail 21 completely enters the interior of the rotor sail 11, and only the rotor sail 11 rotates. D , and due to the rotation, a lift force F is generated L At this time, the drag sail 21 is inserted into the interior of the rotor sail 11, so no drag is generated. D and lift F L The resultant force F T The action is applied in the traveling direction of the ship so that the ship 1 can obtain propulsion.

[0046] like Figure 8 As shown, when the wind Figure 7 and Figure 2 When the wind blows in the direction between the two directions, a part of the drag sail 21 is exposed from the rotor sail 11. Then, the rotor sail 11 generates a drag force F. D1 and lift F L , and the resistance F is generated by the resistance sail 21 D2 Their combined force F T Acting on the ship. Here, due to the resistance F D2 The magnitude of the force F varies with the area of ​​the drag sail 21. T The magnitude and direction of the resistance F D2 Therefore, by adjusting the area of ​​the drag sail 21, the resultant force F T The same direction as the propulsion direction of the ship 1. Therefore, even if the wind direction changes, the resistance F can be changed by adjusting the area of ​​the resistance sail 21. D2 The size of the wind can make the force acting on the rotor sail 11 and the resistance sail 21 in the propulsion direction of the ship 1. On the other hand, in this embodiment, only the resistance F acting on the resistance sail 21 is changed by changing the area of ​​the resistance sail 21. D2 , to adjust the resultant force F T However, when the rotation speed of the rotor sail 11 is changed, the lift F acting on the rotor sail 11 L Therefore, in addition to the area of ​​the drag sail 21, the lift force F can also be changed by using the rotation speed of the rotor sail 11. L The size of the resultant force F is adjusted T That is, in addition to the area of ​​the drag sail 21, the rotation speed of the rotor sail 11 can also be adjusted to make the resultant force F T The action is exerted in the traveling direction of the ship 1 .

[0047] Therefore, in this embodiment, even if the wind direction changes, by adjusting the area of ​​the drag sail 21 and the rotation speed of the rotor sail 11, the wind force acting on the drag sail 21 and the rotor sail 11 can be made to act in the traveling direction of the ship 1.

[0048] In the case of the embodiment shown above, the drag sail 21 and the rotor sail 11 are located on the same axis. In this case, the drag force F acting on the drag sail 21 is D2 , the resistance F acting on the rotor sail 11 D1 , and lift F L When a plurality of resistance sails 21 are symmetrically mounted on the vessel 1 with respect to the rotor sail 11, even if the resistance sail 21 and the rotor sail 11 are not coaxial, the operating points of the loads acting on the resistance sail 21 and the rotor sail 11 may be the same. Therefore, according to an embodiment, the resistance sail 21 and the rotor sail 11 may also be mounted non-coaxially, rather than coaxially.

Claims

1. A heterogeneous sail device, characterized in that: include: A rotor sail mechanism, which is installed on a ship and has a rotor sail that rotates when wind blows so that lift generated by pressure difference acts on the ship; as well as a resistance sail mechanism, which is installed on the ship and includes a resistance sail for causing the resistance generated by the wind to act on the ship, By adjusting the magnitude of at least one of the drag and the lift, a combined force of the forces exerted by the rotor sail and the drag sail on the ship is caused to act in the traveling direction of the ship.

2. The heterogeneous sail device according to claim 1, characterized in that: The resistance sail mechanism is capable of adjusting the area of ​​the resistance sail in such a manner that the magnitude of the resistance can be adjusted.

3. The heterogeneous sail device according to claim 2, characterized in that: The resistance sail mechanism can adjust the angle of the resistance sail according to the direction from which the wind blows.

4. The heterogeneous sail device according to claim 3, characterized in that: The drag sail is coaxial with the rotor sail.

5. The heterogeneous sail device according to any one of claims 1 to 4, characterized in that: The rotor sail mechanism also has: a driving component, which is installed inside the rotor sail in a manner of being combined with the rotor sail to rotate the rotor sail; Drive motor; a power transmission unit configured to rotate the driving member in order to rotate the rotor sail using power from the driving motor; as well as The magnetic bearing part supports the driving component by using magnetic force to reduce the friction of the rotor sail.

6. The heterogeneous sail device according to claim 5, characterized in that: The resistance sail mechanism also has: a support plate installed inside the rotor sail in a manner capable of supporting the drag sail; Direction adjustment motor; and The motor power transmission part utilizes the power of the direction adjustment motor to rotate the support plate to adjust the angle of the resistance sail.

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