Wind-propelled System and Ship having the same

Abstract

A wind propulsion system according to one embodiment of the present invention may include: a stator formed vertically on a deck; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a guide rail formed on the inner surface of the rotor; and a reinforcing member disposed on the outer surface of the rotor at a position corresponding to the guide rail.

Description

Technology Field

[0001] The present invention relates to a wind propulsion system and a ship including the same. Background Technology

[0002] With the recent increase in interest in eco-friendly ships, there is a growing effort to reduce carbon emissions in large vessels, such as cargo ships, by using eco-friendly fuels or increasing fuel efficiency through hull shape improvements.

[0003] For example, a rotor (Magnus rotor) that can convert wind power into thrust in a desired direction by rotating directly using power can be used on ships.

[0004] The rotor consists of a stator formed perpendicular to the deck and a rotor provided in a cylindrical shape to surround the surface and top of the stator, the rotor's rotational speed and direction of rotation being adjustable, and can assist in the propulsion of the ship through the rotation of the rotor. Additionally, the rotor may include drive units such as a motor and a VFD that are positioned inside the stator and provide power to the rotor.

[0005] Meanwhile, the rotor has a cylindrical shape with an open bottom surface, and the rotor is a large cylindrical structure, and vibration may occur in the rotor due to rotation of the rotor, changes in sea temperature, or impact from seawater. Due to such vibration, the efficiency of the rotor decreases and defects in the rotor may occur. To reduce the vibration of the rotor, the rotor may be supported laterally by a support member formed on the stator, the inner surface of the lower end of the rotor.

[0006] However, the lower end of the rotor may be deformed due to rotor rotation, changes in sea temperature, or impacts from seawater. Furthermore, if the rotor is not in close contact with the support member due to this deformation, the vibration reduction effect of the support member may be reduced. Therefore, there is a need to develop technology to reduce rotor vibration by preventing rotor deformation or by ensuring that the stator's support member is in close contact with the rotor.

[0007] In addition, external loads may be applied to the stator's support members depending on the movement of the rotor, which may cause deformation or damage to the support members. Therefore, the support members need to be formed as a cushioning structure to absorb external loads. (Prior Art) Korean Published Patent Application No. 10-2022-0073630 (Published June 3, 2022) The problem to be solved

[0008] The present invention was created to solve the problems of the prior art as described above, and aims to provide a wind propulsion system that increases rotor efficiency and prevents rotor damage, and a ship including the same.

[0009] In addition, the present invention is intended to provide a wind propulsion system that reduces rotor vibration and a ship including the same. means of solving the problem

[0010] A wind propulsion system according to one embodiment of the present invention comprises: a stator formed vertically on a deck; a rotor formed to surround the outer side of the stator and rotatably connected to the stator; a guide rail formed on the inner surface of the rotor; and a reinforcing member disposed on the outer surface of the rotor at a position corresponding to the guide rail.

[0011] Specifically, the reinforcing member may include a plurality of unit reinforcing members having an arc shape.

[0012] Specifically, the reinforcing member may have a tapered shape or a curved shape with a cross-section facing outward toward the rotor.

[0013] Specifically, the reinforcing member may have at least one of a triangular, trapezoidal, and semicircular shape with a cross-section facing outward toward the rotor.

[0014] Specifically, the reinforcing member may include a first support ring formed in a direction away from the rotor; and a second support ring formed on the outer side of the first support ring.

[0015] Specifically, it may further include a horizontal support member connecting the first support ring and the second support ring, which are spaced apart.

[0016] Specifically, it may further include a guide bearing positioned at a location corresponding to the guide rail around the stator.

[0017] Specifically, the guide bearing may protrude toward the rotor by penetrating the circumferential surface of the stator.

[0018] The present invention may include a vessel comprising the above-mentioned wind propulsion system. Effects of the invention

[0019] The wind propulsion system according to the present invention and the vessel including the same can increase the efficiency of the rotor and prevent damage to the rotor.

[0020] In addition, the wind propulsion system according to the present invention and the vessel including the same can reduce rotor vibration. Brief explanation of the drawing

[0021] FIG. 1 is a side view of a ship including a wind propulsion system according to one embodiment of the present invention. FIG. 2 is an internal conceptual diagram of a wind propulsion system according to one embodiment of the present invention. FIG. 3 is an external conceptual diagram of a wind propulsion system according to one embodiment of the present invention. FIG. 4a is a cross-sectional view of a wind propulsion system according to one embodiment of the present invention, and FIG. 4b is a cross-sectional view of a wind propulsion system according to another embodiment of the present invention. FIG. 5a is a cross-sectional view of a reinforcing member according to a first embodiment of the present invention, and FIG. 5b is a cross-sectional view of a reinforcing member according to a second embodiment of the present invention. FIG. 6a is a cross-sectional view showing a guide portion according to a first embodiment of the present invention, and FIG. 6b is a drawing showing the cushioning action of the guide portion according to a first embodiment of the present invention. FIG. 7 is a cross-sectional view showing a guide portion according to a second embodiment of the present invention. FIG. 8 is a cross-sectional view showing a guide portion according to a third embodiment of the present invention. FIG. 9 is a perspective view showing a guide portion according to a fourth embodiment of the present invention. FIG. 10 is a plan view showing a guide portion according to a fourth embodiment of the present invention. FIG. 11 is an internal conceptual diagram of a wind propulsion system according to another embodiment of the present invention. FIG. 12 is a cross-sectional view showing a lower guide portion according to one embodiment of the present invention. FIG. 13 is a cross-sectional view of a wind propulsion system according to another embodiment of the present invention. Specific details for implementing the invention

[0022] It should be noted that when assigning reference numbers to the components of each drawing in the specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention.

[0023] For reference, the present invention includes a vessel equipped with a liquefied gas storage tank as described below. The vessel may be at least a vessel that uses liquefied gas as propulsion fuel / power generation fuel, and the concept includes gas carriers, merchant vessels that transport cargo or people other than gas, FSRUs, FPSOs, bunkering vessels, offshore plants, etc.

[0025] FIG. 1 is a side view of a ship including a wind propulsion system according to one embodiment of the present invention.

[0026] Referring to FIG. 1, at least one wind propulsion system (1) according to one embodiment of the present invention may be provided on the deck (S) of a ship (2). The wind propulsion system (1) can help propel the ship (2) by directly rotating using power and converting wind into propulsion force.

[0027] The wind propulsion system (1) is formed vertically with respect to the deck (S) and multiple wind propulsion systems (1) can be arranged side by side. Multiple wind propulsion systems (1) can be positioned in front of the cabin and can be spaced apart at regular intervals so that the bow can be seen from the cabin.

[0028] In FIG. 1, the ship (2) is depicted as not having cargo loaded on the deck (S), but depending on the type of fuel tank, the fuel tank may be exposed on the deck (S) and cargo such as containers may be loaded on the deck (S).

[0029] The wind propulsion system (1) can be placed on the deck (S) of the ship (2) together with the cargo, and can be placed apart from the cargo by considering the fluid flow generated through the rotation of the wind propulsion system (1) since it provides propulsion to the ship (2) using the Magnus effect.

[0030] The wind propulsion system (1) can be placed on the deck (S) taking into account weight balance and movements such as rolling and pitching of the ship (2), and can be placed symmetrically with respect to the centerline of the width of the ship (2).

[0032] FIG. 2 is an internal conceptual diagram of a wind propulsion system according to one embodiment of the present invention.

[0033] Referring to FIG. 2, a wind propulsion system (1) according to one embodiment of the present invention may include a support member (10), a stator (20), a rotor (30), an end plate (40), a disk (50), a driving member (60), and a guide member (70).

[0034] The support member (10) can be formed such that its lower surface contacts the deck (S) and its upper surface contacts the stator (20). The support member (10) is formed on the deck (S) of the ship (2) and can be fixed in position on the deck (S) by being joined to the deck (S) through welding or bolting.

[0035] The support member (10) protrudes at a certain height on the deck (S) and can support the stator (20) placed on the upper surface. The support member (10) may be formed in the shape of a circular or polygonal column, but is not limited thereto. The support member (10) may be formed as a single unit. Additionally, the support member (10) may be separated into multiple parts to support the perimeter of the stator (20).

[0036] The stator (20) may have a shape that extends upward from the upper surface of the support member (10). The stator (20) may be fixed to the upper surface of the support member (10). The stator (20) may be positioned downward from the rotor (30). The stator (20) may be formed at a lower height than the rotor (30). The stator (20) may be positioned downward from the rotor (30) to stably support the stator (20).

[0037] The stator (20) may be formed with an outer surface formed through a plurality of assemblies or with an open outer surface in a truss structure, but the present invention is not limited thereto. A driving unit (60) may be located on one side of the stator (20), and a support unit (10) may be located on the other side opposite to the one side. Specifically, the driving unit (60) may be accommodated inside the stator (20).

[0038] The stator (20) may be formed in a cylindrical shape. The stator (20) may be formed in a polygonal prism shape. However, the present invention is not limited by the shape of the stator (20).

[0039] The drive unit (60) can be coupled to the disk (50) of the rotor (30) and can be positioned on one side of the stator (20). The drive unit (60) can generate power to rotate the disk (50). When the drive unit (60) rotates the disk (50), the rotor (30) connected to the disk (50) can rotate.

[0040] The drive unit (60) may include a motor and a VFD (variable frequency drive). The drive unit (60) can control the rotation of the rotor (30). Specifically, the drive unit (60) can control the speed and direction of the rotation.

[0041] In FIG. 2, the driving unit (60) is shown as being densely arranged on one side of the stator (20), but it may be separated into multiple layers according to the height direction of the stator (20).

[0042] The rotor (30) may be positioned on the side of the stator (20). Specifically, the rotor (30) may accommodate the stator (20) internally. The rotor (30) may be formed to surround the outside of the stator (20) and may have a larger cross-sectional area than the stator (20).

[0043] The rotor (30) can be rotatably coupled to the stator (20). Specifically, the rotor (30) may include a disk (50) extending transversely from the inner surface of the rotor (30). The disk (50) may have a straight line shape that transversely crosses the inner surface of the rotor (30) and may be composed of a plurality of such straight lines. Additionally, the disk (50) may have a panel shape that transversely crosses the inner surface of the rotor (30). However, the present invention is not limited thereto. The disk (50) may be connected to a driving unit (60).

[0044] A rotation axis (not shown) can pass through the disk (50) along the central axis of the rotor (30). The disk (50) can rotate around the rotation axis. A driving unit (60) can transmit power to the disk (50) through the rotation axis.

[0045] The rotor (30) is formed with an open upper and lower section, with an end plate (40) installed on the upper section and a stator (20) inserted through the open lower section. The rotor (30) is hollow, allowing the stator (20) to be placed inside. The rotor (30) is rotatable relative to the stator (20), and its rotation can be controlled by a drive unit (60).

[0046] The rotor (30) may be provided in a cylindrical shape to surround the outer side of the stator (20). The stator (20) may serve as a support for the rotor (30). Power is transmitted to the rotor (30) by the drive unit (60) with the stator (20), which is installed / fixed on the deck of the ship (2), as an axis, so that the rotor (30) can rotate 360 ​​degrees. The rotor (30) can change the flow of air flowing along the outer surface of the rotor (30) by rotating relative to the stator (20). At this time, due to hydrodynamic interference between the wind around the ship (2) and the cylindrical rotor (30), the wind can be converted into propulsion force for the ship (2).

[0047] In detail, the rotor (30) rotates around the stator (20), which is the vertical central axis, so that increased pressure is generated on one side and decreased pressure / suction is generated on the opposite side, thereby generating positive pressure and negative pressure on each side of the rotor (30), and thus generating propulsion force as a force to move the vessel (2). Additionally, since the direction in which positive and negative pressure are formed can be different depending on the direction of the rotor (30), the direction of operation of the vessel (2) can be controlled by changing the direction of the rotor (30) to rotate clockwise or counterclockwise.

[0048] The rotor (30) may be spaced apart from the support member (10) so that it can rotate relative to the stator (20) and the support member (10). At this time, a space may be formed between the support member (10) and the rotor (30), and fluid flow into the rotor (30) through the space, allowing the user to move, thereby facilitating maintenance of the wind propulsion system (1).

[0049] The end plate (40) can be coupled to the open upper portion of the rotor (30) and may have a cross-sectional area larger than that of the rotor (30). Generally, the end plate (40) may be formed to be twice the diameter of the rotor (30). However, the present invention is not limited by the diameter of the end plate (40).

[0050] The end plate (40) can cap the upper part of the rotor (30) to prevent air inside the rotor (30) from flowing through the upper part.

[0051] The disk (50) may be formed across the interior of the rotor (30) and perpendicular to the height direction of the rotor (30). The disk (50) may have a shape corresponding to the cross-section of the rotor (30). For example, the disk (50) may have a disc shape and may be connected to the inner surface of the rotor (30).

[0052] The disk (50) may be positioned at a height higher than that of the stator (20) inserted into the rotor (30). The disk (50) may be connected to a drive unit (60) installed on the upper part of the stator (20). The disk (50) may rotate by receiving power from the drive unit (60). The rotor (30) may be connected to the disk (50) and rotate together with the disk (50). The disk (50) and the rotor (30) may rotate around the stator (20) as an axis.

[0053] A guide portion (70) may be formed adjacent to the support portion (10) on the stator (20) and the rotor (30). The guide portion (70) may include a guide bearing (71) formed around the stator (20) and a guide rail (72) formed around the rotor (30).

[0054] The guide bearing (71) can be formed adjacent to the other side around the stator (20) and positioned adjacent to the support member (10). The guide bearing (71) engages with the guide rail (72) of the rotor (30) to form a guide member (70) and can guide the rotation of the rotor (30).

[0055] A guide bearing (71) can be positioned around the stator (20). A through hole (not shown) can be formed on the periphery of the stator (20). The guide bearing (71) can protrude to the outside of the stator (20) through the through hole (not shown).

[0056] The guide bearing (71) can be rotatably coupled to the stator (20). For example, the guide bearing (71) may be a ball bearing.

[0057] The guide box (73) may be composed of panels formed in a direction perpendicular to the height direction of the stator (20) (horizontal direction). The panels may be composed of a pair, and a guide bearing (71) may be placed between the pair of panels. The guide box (73) may have a box shape in which the guide bearing (71) is accommodated. The guide box (73) may have a shape that surrounds the guide bearing (71). An opening may be formed on one side of the guide box (73). The guide bearing (71) may have a shape that protrudes from the opening. However, the present invention is not limited to the shape of the guide box (73).

[0058] The guide box (73) can be coupled to the inner surface of the stator (20). For example, the guide box (73) can be positioned so that its opening faces outward from the stator (20). The guide bearing (71) housed in the guide box (73) can pass through the stator (20) and be seated on the guide rail (72).

[0059] The guide bearing (71) can be coupled to the guide box (73) by a bearing shaft (74) that penetrates the guide bearing (71) in a vertical direction. The guide bearing (71) can rotate with a radius of rotation around the bearing shaft (74).

[0060] The guide bearing (71) can be positioned to be in contact with the guide rail (72) formed inside the rotor (30). The guide bearing (71) and the guide rail (72) can be formed at corresponding heights.

[0061] The guide rail (72) may be formed in a ring shape along the inner surface of the rotor (30). The guide rail (72) may be a groove formed on the inner surface of the rotor (30). The guide rail (72) may be formed at a position corresponding to the guide bearing (71). The guide bearing (71) may rotate on the guide rail (72).

[0062] The guide bearing (71) may be placed on the stator (20) and the guide rail (72) may be placed on the rotor (30), and conversely, the guide bearing (71) may be placed on the rotor (30) and the guide rail (72) may be placed on the stator (20).

[0063] A guide section (70) composed of a guide bearing (71) and a guide rail (72) can guide a rotor (30) that rotates by the power of a drive section (60). The guide section (70) is formed to suppress lateral movement when the rotor (30) rotates, thereby minimizing shaking of the rotor (30).

[0064] FIG. 3 is an external conceptual diagram of a wind propulsion system according to one embodiment of the present invention.

[0065] FIG. 4a is a cross-sectional view of a wind propulsion system according to one embodiment of the present invention, and FIG. 4b is a cross-sectional view of a wind propulsion system according to another embodiment of the present invention.

[0066] Referring to FIGS. 3, 4a, and 4b, a wind propulsion system (1) according to one embodiment of the present invention may include a reinforcing member (80). The reinforcing member (80) may be formed on the outer surface of a rotor (30). The reinforcing member (80) may be coupled to the outer surface of the rotor (30). The reinforcing member (80) may have a shape that wraps around the rotor (30). The reinforcing member (80) may be positioned at a location corresponding to a guide rail (72) formed on the inner surface of the rotor (30). That is, the reinforcing member (80) may be installed on the outer surface of the rotor (30) at the location where the guide rail (72) is formed.

[0067] The reinforcing member (80) may have a ring shape that surrounds the circumference of the rotor (30). The reinforcing member (80) may be formed as a single unit. Additionally, the reinforcing member (80) may be composed of multiple units and arranged to surround the circumference of the rotor (30). The reinforcing member (80) may include unit reinforcing members having a plurality of arc shapes that surround the circumference of the rotor (30). The unit reinforcing members may be connected to each other by having a connecting member provided at least at one end. The connecting member can be connected while the unit reinforcing members are spaced apart from each other.

[0068] Additionally, the reinforcing member (80) may include a plurality of support rings in a direction away from the rotor (30). That is, the reinforcing member (80) may include a first support ring (81) formed in a direction away from the rotor (30) and a second support ring (82) formed on the outer side of the first support ring (81). The second support ring (82) may have a larger diameter than the first support ring (81). The first support ring (81) and the second support ring (82) may be connected by a horizontal support member (83). The horizontal support member (83) may connect the first support ring (81) and the second support ring (82) which are spaced apart from each other. The reinforcing member (80) may double-reinforce the exterior of the rotor (30).

[0069] The rotor (30) has a hollow cylindrical structure, and deformation may occur in the lower part. A reinforcing member (80) is attached to the outer surface of the rotor (30) to prevent deformation of the cross-section as the rotor (30) rotates. In particular, the reinforcing member (80) can prevent deformation of the guide rail (72) formed on the lower part of the rotor (30). Therefore, the reinforcing member (80) can maintain the roundness of the rotor (30). The reinforcing member (80) can prevent the vibration reduction effect of the guide part (70) from deteriorating due to deformation of the guide rail (72).

[0070] FIG. 5a is a cross-sectional view of a reinforcing member according to a first embodiment of the present invention, and FIG. 5b is a cross-sectional view of a reinforcing member according to a second embodiment of the present invention.

[0071] The reinforcing member (80) may be formed to protrude in a direction away from the rotor (30). The reinforcing member (80) may have a polygonal shape such as a triangle, square, pentagon, hexagon, and octagon in the vertical direction (height direction of the rotor (30)). In detail, the reinforcing member (80) may have a shape in which the vertical cross-section is tapered toward the outside of the rotor (30). For example, referring to FIG. 3 and FIG. 5b, the reinforcing member (80) may have a triangular or trapezoidal shape in which the vertical cross-section is tapered toward the outside of the rotor (30). Also, referring to FIG. 5a, the reinforcing member (80) may have a shape (curved shape) in which the vertical cross-section has curvature toward the outside of the rotor (30). For example, the reinforcing member (80) may include a semicircular shape in which the vertical cross-section faces outward from the rotor (30). Since the reinforcing member (80) has a tapered or curved shape in which the vertical cross-section faces outward from the rotor (30), it can reduce the resistance to shock waves caused by green water on the rotor (30).

[0072] FIG. 6a is a cross-sectional view showing a guide portion according to a first embodiment of the present invention, and FIG. 6b is a drawing showing the cushioning action of the guide portion according to a first embodiment of the present invention.

[0073] Referring to FIG. 6a, the guide section (70) according to the first embodiment of the present invention may include a guide bearing (71), a guide rail (72), a guide box (73), a bearing shaft (74), and a support plate (75).

[0074] The guide box (73) may be composed of a panel formed in a direction perpendicular to the height direction of the stator (20) (horizontal direction). The guide box (73) includes at least one panel formed by extending in a horizontal direction, and said panel may support a guide bearing (71). For example, said panel may be positioned below the guide bearing (71) to support the guide bearing (71) in an upward direction. That panel may be composed of a pair, and said panel may be positioned between said pair of panels.

[0075] A guide box (73) may be placed on the inner surface of a stator (20). The guide box (73) may have an opening formed on one side through which a guide bearing (71) protrudes, and a support plate (75) may be connected on the other side. One side of the guide box (73) may be spaced apart from the stator (20). The opening may be positioned in a direction away from the stator (20). In detail, the mechanism is placed in a through hole penetrating the stator (20), and the guide bearing (71) may protrude to the outside of the stator (20) along the through hole.

[0076] At least one panel constituting the guide box (73) can be fixed to the inner surface of the stator (20). For example, at least one panel constituting the guide box (73) can be hinge-coupled to the inner surface of the stator (20). Additionally, at least one panel constituting the guide box (73) can be spaced apart from the inner surface of the stator (20).

[0077] One end of the support plate (75) can be fixed to the inner surface of the stator (20). The support plate (75) extends in a direction away from the inner surface of the stator (20) and may have an extended shape by being vertically bent at the extended end. The support plate (75) may be configured in an L-shape.

[0078] The support plate (75) can be hinge-coupled to the inner surface of the stator (20). A hinge portion can be disposed on the inner surface of the stator (20). The hinge portion can be hinge-coupled to the support plate (75). The hinge portion can be disposed parallel to the circumferential direction of the stator (20).

[0079] The support plate (75) can be vertically bent and extended from an end horizontally extended from the inner surface of the stator (20) to be connected to the other side of the guide box (73). That is, the support plate (75) can be connected to the surface on the other side of the guide box (73).

[0080] Additionally, the support plate (75) may be vertically bent and extended at a horizontally extended end to form one side of the guide box (73). That is, the other side of the guide box (73) may be the vertically extended side of the support plate (75).

[0081] The support plate (75) can form the lower panel of the guide box (73). That is, the bearing shaft (74) extends upward from the lower panel of the guide box (73), and the bearing shaft (74) can pass through the guide bearing (71).

[0082] The support plate (75) may have elasticity. The support plate (75) may include an elastic material. The support plate (75) can cushion the load transmitted to the guide bearing (71) through elastic movement. Referring to FIG. 6b, when a horizontal load or an upward load is transmitted to the guide bearing (71), the support plate (75) may bend downward. The load transmitted to the guide bearing (71) may be cushioned by the bending of the support plate (75). The support plate (75) may cushion the horizontal and vertical loads transmitted to the guide bearing (71) by the bending.

[0083] FIG. 7 is a cross-sectional view showing a guide portion according to a second embodiment of the present invention.

[0084] Referring to FIG. 7, a guide portion (70) according to a second embodiment of the present invention may include a guide bearing (71), a guide rail (72), a guide box (73), a bearing shaft (74), and a hinge portion (90).

[0085] A guide bearing (71) is housed in a guide box (73), and the guide box (73) may be positioned on the inner surface of a stator (20). The guide box (73) may have a box shape with an opening formed on one side. The guide bearing (71) may protrude through the opening. The guide box (73) may be positioned so that the opening faces the stator (20).

[0086] The guide box (73) may be hinged to the inner surface of the stator (20) by a hinge part (90). The hinge part (90) may be installed on the inner surface of the stator (20) so that the guide box (73) can move in a hinge direction in the height direction of the stator (20). The length direction of the hinge part (90) may be arranged parallel to the circumference direction of the stator (20). One end of the lower surface of the guide box (73) may be hinged to the inner surface of the stator (20) by a hinge part (90). One end of the upper surface of the guide box (73) may be spaced apart from the inner surface of the stator (20).

[0087] The hinge portion (90) may be a spring hinge. The spring hinge may be a torsion spring. The hinge portion (90) may be positioned in a direction parallel to the circumferential surface of the stator (20). The hinge portion (90) may be positioned so that its side faces the guide box (73). When a vertical or horizontal load is transmitted to the guide bearing (71), the spring of the hinge portion (90) is wound, and when the load applied to the guide bearing (71) is removed, the spring of the hinge portion (90) may be released. The hinge portion (90) can cushion the horizontal and vertical loads transmitted to the guide bearing (71).

[0088] FIG. 8 is a cross-sectional view showing a guide portion according to a third embodiment of the present invention.

[0089] Referring to FIG. 8, the guide section (70) according to the third embodiment of the present invention may include a guide bearing (71), a guide rail (72), a guide box (73), a bearing shaft (74), a support plate (75), a cushioning section (76), and a hinge section (90).

[0090] A guide bearing (71) is housed in a guide box (73), and the guide box (73) may be positioned on the inner surface of a stator (20). The guide box (73) may have a box shape with an opening formed on one side. The guide bearing (71) may protrude through the opening. The guide box (73) may be positioned so that the opening faces the stator (20).

[0091] The guide box (73) may be hinge-coupled to the inner surface of the stator (20) by a hinge portion (90). One end of the lower surface of the guide box (73) may be hinge-coupled to the inner surface of the stator (20) by a hinge portion (90). One end of the upper surface of the guide box (73) may be spaced apart from the inner surface of the stator (20). The hinge portion (90) may be a spring hinge, but is not limited thereto.

[0092] One end of the support plate (75) may be fixed to the inner surface of the stator (20). The support plate (75) may extend in a direction away from the inner surface of the stator (20). The support plate (75) may have elasticity, but is not limited thereto.

[0093] The cushioning member (76) may be formed on one side of the support plate (75) in a direction toward the guide box (73). The cushioning member (76) may have elasticity. The cushioning member (76) may include an elastic material. For example, the cushioning member (76) may include a spring positioned vertically on the support plate (75). The spring may be a tension coil spring or a compression coil spring. A damper (not shown in the symbol) may be positioned inside the spring of the cushioning member (76). The cushioning member (76) may cushion horizontal and vertical loads transmitted to the guide bearing (71).

[0094] FIG. 9 is a perspective view showing a guide portion according to a fourth embodiment of the present invention.

[0095] Referring to FIG. 9, the guide section (70) according to the fourth embodiment of the present invention may include a guide bearing (71) and a guide box (73).

[0096] A guide bearing (71) is housed in a guide box (73), and the guide box (73) may be positioned on the inner surface of a stator (20). The guide box (73) may have a box shape with an opening formed on one side. The guide bearing (71) may protrude through the opening. The guide box (73) may be positioned so that the opening faces the stator (20).

[0097] The guide box (73) can be installed along the edge of the through hole (77) on the inner side of the stator (20). The guide box (73) can fix the guide bearing (71) with a portion of the guide bearing (71) protruding outward. The guide box (73) may be provided with a plurality of first bolting holes (73a) for bolting connection with the stator (20).

[0098] The stator (20) may have through holes (77) provided at regular intervals at the location where the guide bearing (71) protrudes, and a second bolt hole (73b) corresponding to the first bolt hole (73a) may be provided along the edge of the through holes (77) for bolting connection with the guide box (73).

[0099] The guide bearing (71) can be partially protruded outward through the through hole (77) of the stator (20) while the guide box (73) is fixed to the stator (20) and can be in close contact with the guide rail (72) of the rotor (30).

[0100] The guide bearing (71) can be coupled to the guide box (73) by a bearing shaft (74) that penetrates the guide bearing (71) in a vertical direction. The guide bearing (71) can rotate with a radius of rotation around the bearing shaft (74).

[0101] The guide bearing (71) may have at least a portion of elasticity. The guide bearing (71) may include an elastic material. For example, the guide bearing (71) may be made of at least a portion of a rubber material. The guide bearing (71) may include a first region (71a) positioned away from the bearing shaft (74) and a second region (71b) positioned outside the first region (71a) and made of a rubber material. The second region (71b) may cushion the load transmitted to the guide bearing (71). For example, the guide bearing (71) may have the structure of a vehicle wheel. The first region (71a) corresponds to a rim and may be made of carbon steel, and the second region (71b) corresponds to a tire and may be made of a material of styrene butadiene rubber.

[0102] The second region (71b) may be equipped with a pressure regulating unit (not shown) into which air is injected. The load transmitted to the guide bearing (71) can be cushioned by the pressure inside the second region (71b).

[0103] FIG. 10 is a plan view showing a guide portion according to a fourth embodiment of the present invention.

[0104] Referring to FIG. 10, the guide portion (70) according to the fourth embodiment of the present invention may include an axle rail (78). The axle rail (78) may have a groove formed on the inner surface of the guide box (73). Additionally, the axle rail (78) may be formed penetrating at least one surface of the guide box (73). Specifically, the axle rail (78) may be formed penetrating the upper and lower surfaces of the guide box (73). The axle rail (78) may be formed in a direction parallel to the direction away from the stator (20).

[0105] The end of the bearing shaft (74) can be inserted into the shaft rail (78). The bearing shaft (74) can move horizontally along the shaft rail (78). The guide bearing (71) can move horizontally together with the bearing shaft (74). The guide bearing (71) and the bearing shaft (74) can move in a direction away from and towards the stator (20). A groove may be formed on the circumferential surface of the bearing shaft (74), and the bearing shaft (74) can be inserted into the inner surface of the shaft rail (78) in the groove. The movement of the bearing shaft (74) can be guided by the shaft rail (78).

[0106] The position of the bearing shaft (74) can be adjusted so that the guide bearing (71) comes into contact with the inner surface of the rotor (30). A fixing member (not shown) may be attached to the end of the bearing shaft (74). When the guide bearing (71) comes into contact with the inner surface of the rotor (30), a fixing member (not shown) may be attached to the end of the bearing shaft (74). Accordingly, the bearing shaft (74) may be fixed to the shaft rail (78) by the fixing member (not shown). The guide bearing (71) and the rotor (30) may be fixed at a certain distance by the shaft rail (78) and the fixing member (not shown). Thus, the distance between the guide bearing (71) and the rotor (30) can be adjusted.

[0107] For example, the fixing member (not shown) can be bolted to the end of the bearing shaft (74). A thread is formed on the end of the bearing shaft (74), and the fixing member (not shown) can be coupled to the thread. At this time, the bearing shaft (74) can be fixed while the fixing member (not shown) presses against one side of the guide box (73).

[0108] FIG. 11 is an internal conceptual diagram of a wind propulsion system according to another embodiment of the present invention.

[0109] Referring to FIG. 11, a wind propulsion system (1) according to another embodiment of the present invention may include a support member (10), a stator (20), a rotor (30), an end plate (40), a disk (50), a driving member (60), and a lower guide member (100).

[0110] The lower guide portion (100) may be provided on the lower side of the circumference of the rotor (30). The lower guide portion (100) may support the rotor (30). The lower guide portion (100) may have a ring shape along the circumference of the rotor (30). The lower guide portion (100) may be formed as a single unit. Additionally, the lower guide portion (100) may be composed of a plurality of units and arranged along the circumference of the rotor (30).

[0111] FIG. 12 is a cross-sectional view showing a lower guide portion according to one embodiment of the present invention.

[0112] Referring to FIG. 12, a lower guide member (100) according to one embodiment of the present invention may include a bottom surface (110), a vertical surface (120), a lower guide rail (130), a wheel (140), a lower guide box (150), and a connecting part (160).

[0113] The bottom surface (110) may be installed on the upper surface of the deck (S) or the support member (10). The bottom surface (110) may be formed along the circumference of the rotor (30). Additionally, the upper surface of the support member (10) may constitute the bottom surface (110) itself.

[0114] A vertical surface (120) may be formed by extending upward from the bottom surface (110). A vertical surface (120) may be formed along the circumference of the rotor (30). A vertical surface (120) may be positioned on the side of the lower guide rail (130). A pair of vertical surfaces (120) may be formed, and a lower guide rail (130) and a wheel (140) may be positioned between the pair of vertical surfaces (120). A vertical surface (120) may have a height greater than that of the lower guide rail (130).

[0115] The vertical surface (120) can prevent a user or an object from moving along the lower guide rail (130) and the wheel (140). The vertical surface (120) can protect the lower guide rail (130) and the wheel (140). Additionally, the vertical surface (120) can prevent the wheel (140) from coming off the lower guide rail (130).

[0116] The lower guide rail (130) may be formed on the upper surface of the bottom surface (110). The lower guide rail (130) may be formed along the circumference of the rotor (30). The lower guide rail (130) may include a bent structure. The lower guide rail (130) may have a horizontal surface in contact with the bottom surface (110) and a vertical surface extending upward from the end of the horizontal surface. For example, the lower guide rail (130) may have a cross-section in the shape of a 'C' or an 'H'. One side of the bent structure of the lower guide rail (130) may support the wheel (140).

[0117] The wheel (140) can be formed along the circumference of the rotor (30). The wheel (140) can be placed on one side of the lower guide rail (130). The wheel (140) can rotate along the lower guide rail (130).

[0118] The lower guide box (150) may have a box shape in which at least a portion of the wheel (140) is accommodated. The wheel (140) may be fixed to the lower guide box (150) by a shaft that passes through the wheel (140).

[0119] The connecting portion (160) may be formed by extending upward from the lower guide box (150). The connecting portion (160) may be connected to the lower part of the rotor (30). The connecting portion (160) may be connected to the circumferential surface of the rotor (30). The connecting portion (160) may be coupled to the inner or outer surface of the rotor (30).

[0120] Additionally, the connecting portion (160) may be formed by extending the circumference of the rotor (30) downward. That is, the rotor (30) may form the connecting portion (160).

[0121] FIG. 13 is a cross-sectional view of a wind propulsion system according to another embodiment of the present invention.

[0122] Referring to FIG. 13, the wheels (140) may be composed of multiple wheels and arranged along the circumference of the rotor (30). For example, the wheels (140) may be arranged one by one every 30° along the circumference of the rotor (30).

[0123] In this way, the wind propulsion system (1) according to one embodiment of the present invention can maintain the roundness of the cross-section of the rotor (30). Accordingly, the deterioration of the vibration reduction effect of the guide part (70) can be prevented.

[0124] In addition, the wind propulsion system (1) according to one embodiment of the present invention can cushion the load transmitted to the rotor (30) by the guide part (70). Thus, the lateral movement of the rotor (30) can be reduced.

[0125] The present invention is not limited to the embodiments described above, and may include a combination of the above embodiments or a combination of at least one of the above embodiments and known technology as another embodiment.

[0126] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention, and the invention is not limited thereto. It will be apparent that modifications or improvements can be made by those skilled in the art within the technical scope of the invention.

[0127] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims. Explanation of the symbols

[0128] 1: Wind propulsion system 2: Ship 10: Support 20: Stator 30: Rotor 40: End plate 50: Disk 60: Drive unit 70: Guide section 71: Guide bearing 71a: Area 1 71b: Area 2 72: Guide rail 73: Guide box 73a: 1st bolt hole 73b: 2nd bolt hole 78: Axle rail 74: Bearing shaft 75: Support plate 76: Buffer 77: Through hole 80: Reinforcing member 81: 1st support ring 82: 2nd support ring 83: Horizontal support member 90: Hinge part 100: Lower guide section 110: Bottom surface 120: Vertical surface 130: Lower guide rail 140: Wheel 150: Lower guide box 160: Connection S: Deck

Claims

Claim 1 A wind propulsion system comprising: a stator (20) formed vertically on a deck; a rotor (30) formed to surround the outer side of the stator (20) and rotatably connected to the stator (20); a guide rail (72) formed on the inner side of the rotor (30); and a reinforcing member (80) positioned on the outer side of the rotor (30) at a position corresponding to the guide rail (72), wherein the reinforcing member (80) comprises a plurality of unit reinforcing members having an arc shape. Claim 2 delete Claim 3 A wind propulsion system comprising: a stator (20) formed vertically on a deck; a rotor (30) formed to surround the outer side of the stator (20) and rotatably connected to the stator (20); a guide rail (72) formed on the inner side of the rotor (30); and a reinforcing member (80) positioned on the outer surface of the rotor (30) at a position corresponding to the guide rail (72), wherein the reinforcing member (80) has a cross-section that is tapered or curved toward the outside of the rotor (30). Claim 4 In paragraph 3, the reinforcing member (80) is a wind propulsion system having at least one of a triangular, trapezoidal, and semicircular shape with a cross-section facing outward from the rotor (30). Claim 5 A wind propulsion system comprising: a stator (20) formed vertically on a deck; a rotor (30) formed to surround the outer side of the stator (20) and rotatably connected to the stator (20); a guide rail (72) formed on the inner side of the rotor (30); and a reinforcing member (80) positioned on the outer side of the rotor (30) at a position corresponding to the guide rail (72); wherein the reinforcing member (80) comprises: a first support ring (81) formed in a direction away from the rotor (30); and a second support ring (82) formed on the outer side of the first support ring (81). Claim 6 A wind propulsion system according to claim 5, further comprising a horizontal support member (83) connecting the first support ring (81) and the second support ring (82) which are spaced apart. Claim 7 A wind propulsion system according to claim 1, further comprising a guide bearing (71) positioned at a location corresponding to the guide rail (72) around the stator (20). Claim 8 In claim 7, the guide bearing (71) is a wind propulsion system that penetrates the circumferential surface of the stator (20) and protrudes toward the rotor (30). Claim 9 A vessel comprising a wind propulsion system according to any one of Articles 1, 3 through 8.

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