KR20240044874A - Height adjustable rotor sail and height adjustable method thereof - Google Patents

Abstract

The present invention relates to a rotor sail that can obtain propulsion by the Magnus effect by using the wind while the ship is in operation. More specifically, it relates to a cylindrical sail that is erected vertically on the deck of the hull. It relates to a height-adjustable rotor sail that can lower the height of the rotor as needed by configuring the rotor to be adjustable in length in the height direction, and a method of adjusting the height of the rotor sail.
The present invention includes a lower cylinder having a vertical length fixed in the height direction from the hull and rotating on the deck of the hull; and an upper cylinder connected to the upper end of the lower lower cylinder and rotating together with the lower cylinder, wherein the upper cylinder includes: one or more cylinder modules stacked on the upper end of the lower cylinder and having a variable length in the height direction; and a module driving unit that varies the length of the cylinder module in the height direction.

Description

Height-adjustable rotor sail and method of adjusting the height of the rotor sail {HEIGHT ADJUSTABLE ROTOR SAIL AND HEIGHT ADJUSTABLE METHOD THEREOF}

The present invention relates to a rotor sail that can obtain propulsion by the Magnus effect by using the wind while the ship is in operation. More specifically, it relates to a cylindrical sail that is erected vertically on the deck of the hull. It relates to a height-adjustable rotor sail that can lower the height of the rotor as needed by configuring the rotor to be adjustable in length in the height direction, and a method of adjusting the height of the rotor sail.

Generally, a ship moves forward using the flow of fluid generated when a propeller installed at the rear of the hull rotates, and the engine is driven to achieve a constant speed by rotating the propeller.

Here, a large amount of fuel is consumed due to the driving of the engine, and a large amount of greenhouse gases (GHG, Green House Gas) including carbon dioxide are emitted, which can cause serious environmental pollution problems.

The International Maritime Organization (hereinafter referred to as 'IMO') has stipulated that greenhouse gas emissions from ships must be reduced starting from 2013 (Convention on Marine Pollution, MARPOL Annex VI, for regulations of Air Pollution in (see the Maritime Industry).

Specifically, carbon dioxide, a representative greenhouse gas, is regulated through the Energy Efficiency Design Index (EEDI) adopted by the IMO's Marine Environmental Protection Committee (MEPC), which requires a 30% reduction from 2025 based on 2008 emissions. We are seeking to achieve a 50% reduction by 2050.

Against this background, related industries such as ship owners and shipbuilders are increasingly interested in ways to improve the energy efficiency of ships and reduce air pollutants, and to generate their own power using renewable energy such as solar energy, tidal waves, or wind power. Research and development on eco-friendly power generation technology that can produce electricity, or fuel saving technology that can improve the propulsion efficiency of ships and reduce fuel consumption by partially changing the hull structure or installing appendages such as current fixed wings or ducts. This is actively underway.

Recently, as a way to reduce the fuel consumption of ships, rotor sails, which install a cylindrical structure on the deck of a ship and obtain propulsion by using wind during operation, have been developed. is being applied.

The technical configuration described above is background technology to aid understanding of the present invention, and does not mean that it is a conventional technology widely known in the technical field to which the present invention pertains.

Republic of Korea Patent Publication No. 10-1572395 “Vertically variable marine sail system” Republic of Korea Patent Publication No. 10-2020-0014383 “Raising and lowering mechanism for flattener rotor”

The rotor sail is also called a Magnus rotor because it uses the Magnus effect. The Magnus effect refers to the phenomenon in which the rotation axis of an object rotating in a fluid is perpendicular to the flow of fluid and is perpendicular to the rotation axis of the object. This refers to the phenomenon of directional force occurring.

Figure 1 is a diagram to explain the Magnus effect caused by a rotor sail.

A ship equipped with a rotor sail has a cylindrical rotor standing vertically on the deck and rotating in one direction. As shown in Figure 1, the rotation direction of the rotor (R) and the direction of the wind are Wind speed increases on the matching side and slows down on the other side.

In addition, according to Bernoulli's theory, which states that pressure decreases as flow speed increases, wind speed increases and pressure decreases on the side where the rotation direction of the rotor (R) coincides with the wind direction, and on the other side, wind speed decreases. As this slows down and the pressure decreases, a pressure difference on both sides may occur.

Due to this pressure difference, lift is received in a direction perpendicular to the axis of the rotor (R) and the direction of the wind, that is, from the side with high pressure to the side with low pressure. This lift can act as the thrust of the ship. there is.

In other words, a ship equipped with a rotor sail can obtain propulsion by the Magnus effect when a pressure difference is generated around the rotor due to wind during operation.

However, if the cylindrical rotor does not rotate or the rotor sail does not operate due to wind blowing from a specific direction, such as a headwind blowing from the forward direction of the ship, the rotor sail does not provide additional propulsion and rather increases hull resistance. You can do it.

In addition, a rotor sail is a large structure with a height of approximately 30 m or more from the deck. It is difficult for a ship equipped with a rotor sail to pass through the bridge pier (lower part of the bridge), and it has limitations such as not being able to approach the port because it exceeds the berthing limit height. This may occur.

To solve this problem, a tilting type rotor sail that lies parallel on the deck by applying a hinge mechanism to the lower part of the rotor has been used in the past. However, it is more expensive than the existing rotor sail. Not only is this required, but there is a structural problem in that damage occurs at the joint where the load is concentrated due to the rotating motion of the rotor, which has a significant size (or weight).

As another example of a rotor sail according to the prior art, there is a telescopic type rotor sail that can be inserted into the hull and lower the height protruding on the deck, but it requires space below the deck for the rotor sail to be inserted. There is a problem in that the ship's loadable cargo capacity is reduced.

The present invention is a rotor sail that can obtain propulsion by the Magnus effect using the wind while operating a ship, and a rotor sail with an adjustable height that can adjust the height of the rotor standing vertically on the deck of the hull as needed. The purpose is to provide

In addition, by dividing the rotor into two cylinders in the height direction and adjusting only the length of the cylinder located at the top, no additional space is required on the top of the deck or inside the hull even if the height of the rotor sail is adjusted, allowing cargo to be loaded on the ship. Another purpose is to provide a height-adjustable rotor sail that can minimize the impact on capacity and a method of adjusting the height of the rotor sail.

According to one aspect of the present invention, it is a rotor sail that generates propulsion by the Magnus effect using wind while operating a ship, has a vertical length fixed in the height direction from the hull, and is a rotor sail of the hull. Lower cylinder rotating on deck; And a height-adjustable rotor sail including an upper cylinder connected to the upper end of the lower lower cylinder and rotating together with the lower cylinder may be provided.

The upper cylinder includes one or more cylinder modules stacked on top of the lower cylinder and having a variable length in the height direction; And it may include a module driving unit that varies the length of the cylinder module in the height direction.

In addition, the cylinder module includes a plurality of side parts arranged in a circumferential direction from the top of the lower cylinder to form a pillar-shaped outer surface; A rib panel having a polygonal planar shape and having the plurality of side portions joined along the circumferential edge; And it may include a reinforcement part for supporting the rib panel in the process of changing the height direction length of the cylinder module.

In addition, the module driving unit includes an air pocket installed at the lower part of the rib panel; A pump unit for supplying air into the air pocket; And it may include a pump control unit for controlling the pump unit.

Additionally, a plurality of air pockets may be installed in the circumferential direction at the bottom of the rib panel, and may be installed symmetrically on one side and the other with respect to the plane center of the cylinder module.

Additionally, the side portion may include a pair of side panels that have a rectangular plate shape and are mutually folded or unfolded in the height direction.

Additionally, as air is supplied into the air pocket of the cylinder module, the pair of side panels are mutually expanded to form a pillar-shaped outer surface.

In addition, as the air inside the air pocket is discharged to the outside of the cylinder module, the pair of side panels are folded against each other, thereby reducing the length in the height direction and changing the width in the diametric direction.

In addition, the cylinder module may further include a locking means for maintaining the pillar shape by unfolding the pair of side panels.

Additionally, among the plurality of side parts, a pair of side parts that are adjacent to each other may have a plurality of through holes formed at ends facing each other.

Additionally, the locking means may include a rope member inserted into the plurality of through holes in a zigzag shape.

Additionally, the rib panel may have a regular polygonal planar shape with a hollow portion.

Additionally, the rib panel may have a trapezoidal shape and include a plurality of unit ribs each coupled to the plurality of side portions.

Additionally, the reinforcement unit may include a pair of reinforcement panels that fold and unfold each other in the height direction.

Additionally, a plurality of reinforcement parts may be provided and connected to each of the plurality of unit ribs.

According to another aspect of the present invention, air is supplied into the air pocket installed at the bottom of the rib panel of the cylinder module so that the side portion of the cylinder module forms a pillar-shaped outer surface, and the length of the cylinder module in the height direction is reduced. , a method of adjusting the height of the rotor sail that discharges the air inside the air pocket to the outside so that the width changes in the diametric direction may be provided.

A rope member may be inserted in a zigzag shape into the plurality of through holes formed in the side portion, and then the cylinder module may be fixed by pulling the rope member tightly in the height direction.

In addition, after fixing the cylinder module, the operation of the pump unit for supplying air into the air pocket can be stopped through the pump control unit.

The present invention is provided with a rotor that stands vertically on the deck of the hull, so that propulsive force can be obtained by the Magnus effect during operation, thereby reducing the fuel efficiency of the ship and improving energy efficiency.

In addition, at least part of the length of the rotor in the height direction can be adjusted so that the height of the rotor can be adjusted as needed, such as when a ship wants to pass through a pier or dock. Even if the height of the rotor is adjusted, it can be installed on the top of the deck or inside the hull. Since it does not require additional space, the impact on the vessel's loadable cargo capacity can be minimized.

Figure 1 is a diagram to explain the Magnus effect caused by a rotor sail.
Figure 2 is a diagram schematically showing a height-adjustable rotor sail according to an embodiment of the present invention.
Figure 3 is a diagram showing some of the known origami patterns as examples.
FIG. 4 is a diagram schematically showing an upper cylinder to which the origami pattern shown in FIG. 3 is applied.
Figure 5 is a perspective view showing a modified example of the upper cylinder in a height-adjustable rotor sail according to an embodiment of the present invention.
Figure 6 is a diagram schematically showing the folding and unfolding operation of the cylinder module constituting the upper cylinder of this modified example.
FIG. 7 is a plan and side view of the upper cylinder shown in FIG. 5 when the length in the height direction is reduced.
Figure 8 is a diagram sequentially showing the process of changing the height direction length of the upper cylinder of this modified example.
Figure 9 is a diagram showing as a comparative example that the upper cylinder has a hexagonal plan shape and is made of five layers.
Figure 10 is a diagram schematically showing the driving mechanism of the cylinder module in the upper cylinder of this modified example.
Figure 11 is a diagram for explaining the installation position of the air pocket shown in Figure 10.
Figure 12 is a diagram for explaining a method of maintaining the shape of the upper cylinder of this modified example using a locking means.
Figure 13 is a schematic perspective view of a height-adjustable rotor sail according to another embodiment of the present invention.
FIG. 14 is a diagram showing the rotor shown in FIG. 13 excluding the second length variable portion.
FIG. 15 is a diagram showing a state in which the height direction length of the first length variable portion shown in FIG. 14 is reduced.
FIG. 16 is a diagram showing an intermediate step in the process of varying the length of the first length variable portion shown in FIGS. 14 and 15.
Figure 17 is a plan view of Figure 14.
FIG. 18 is an enlarged view of a portion of FIG. 17.
FIG. 19 is a diagram illustrating a separated second length variable portion connected to the top of the first length variable portion shown in FIG. 16.
FIG. 20 is a diagram sequentially showing the process of changing the height direction length of the rotor shown in FIG. 13.
FIG. 21 is a diagram schematically showing the driving mechanisms of the first length variable part and the second length variable part in FIG. 20.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings, but identical or similar components will be assigned the same or similar reference numerals and redundant description thereof will be omitted.

The suffix “part” for components used in the following description is given or used interchangeably only for the ease of preparing the specification, and does not have a distinct meaning or role in itself.

Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted.

In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

In addition, terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms, and the terms refer to one component as another component. It is used only for the purpose of distinguishing from.

Additionally, when a component is referred to as being “connected” to another component, it should be understood that although it may be directly connected to the other component, other components may exist in between.

In this application, unless the context clearly indicates otherwise, singular expressions include plural expressions, and terms such as “comprise” or “have” refer to features, numbers, steps, operations, components, etc. described in the specification. It is intended to specify the existence of a part or a combination thereof, but should be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or a combination thereof.

As described above, the rotor sail has a rotor that stands vertically on the deck of the hull, and can obtain propulsion by the Magnus effect using wind while the ship is in operation.

These rotor sails are large structures that usually have a diameter of about 5 m and a height of about 30 m or more from the deck. When the cylindrical rotor is not operating, propulsion cannot be obtained and there is a risk of increasing resistance.

In addition, ships equipped with rotor sails not only have difficulty passing through bridge piers due to the size of the rotor, but also may experience limitations such as not being able to approach the port due to exceeding the berthing limit height.

Conventionally, rotor sails of the tilting type, which lies parallel on the deck, or the telescopic type, which is inserted into the hull and can lower the height protruding from the deck, have been applied to ships, but damage occurs at the joint where the load is concentrated or There are problems such as a reduction in the cargo capacity of the ship.

The present invention, in a rotor sail that can obtain propulsion by the Magnus effect using wind while operating a ship, consists of a rotor standing vertically on the deck of the hull with two cylinders, and the height direction of the upper cylinder is It is adjustable so that the height of the rotor can be lowered as needed. Even if the height of the rotor is adjusted, it does not require additional space on the top of the deck or inside the hull, minimizing the impact on the ship's loadable cargo capacity. We would like to provide a rotor sail that makes this possible.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 2 is a diagram schematically showing a height-adjustable rotor sail according to an embodiment of the present invention.

Referring to FIG. 2, the height-adjustable rotor sail 10 according to an embodiment of the present invention is a rotor that stands vertically on the deck of the hull (unmarked, see reference numeral 'D' in FIG. 2) and rotates. It is provided with (100), and at least a portion of the upper part of the rotor 100 may be configured to have a variable length in the height direction.

As shown in FIG. 2, the rotor 100 of this embodiment may be composed of two cylinders 110 and 130 in the height direction, and of the two cylinders 110 and 130, one located relatively close to the hull deck. The height direction of the cylinder 110 is fixed, but the height direction length of the cylinder 130 located relatively far from the hull deck may be adjustable.

Hereinafter, for convenience of explanation, among the two cylinders 110 and 130 constituting the rotor 100, the cylinder located relatively close to the hull deck is referred to as the lower cylinder 110, and the upper end of the lower cylinder 110 The cylinder connected to and located relatively far from the hull deck will be referred to as the upper cylinder 130.

In other words, the rotor 100 of this embodiment includes a lower cylinder 110 having a fixed vertical length on the deck of the hull, and an upper cylinder 130 whose height direction length is variable at the top of the lower cylinder 110. ) may include.

In addition, although not shown in the drawings, it may be desirable for one or more rotors 100 of this embodiment to be installed on the deck of the hull.

The lower cylinder 110 may be formed in the form of a cylinder with a uniform diameter in the height direction from the deck of the hull.

The lower cylinder 110 of this embodiment can be manufactured by forming steel using single-piece casting or half-shell casting, and a composite material is applied to the outer surface to reduce weight. You may.

In this embodiment, the lower cylinder 110 stands and rotates on the deck of the hull and may have a vertical length fixed in the height direction.

That is, unlike the upper cylinder 130 described later, the lower cylinder 110 of this embodiment may not have a variable length in the height direction.

The upper cylinder 130 rotates together with the lower cylinder 110 at the top of the lower cylinder 110 to generate lift, and may be provided to have a variable length in the height direction.

Although not shown in FIG. 2, the upper cylinder 130 of this embodiment may include a plurality of unit panels 131 that form a pillar-shaped outer surface at the top of the lower cylinder 110.

In addition, the upper cylinder 130 of this embodiment may have a folding line 133 formed between the plurality of unit panels 131, where the plurality of unit panels 131 are mutually folded and unfolded. The unit panels 131 are folded so that the length decreases in the height direction and the width changes in the diameter direction.

That is, the plurality of unit panels 131 can form a certain origami pattern by the fold lines 133 formed between the plurality of unit panels !31, and are mutually aligned along the fold lines 133. The length of the upper cylinder 130 in the height direction may be varied through a folding or unfolding operation.

In addition, the folding and unfolding operation of each of the plurality of unit panels 131 forming the origami pattern may be performed by any one of a wire-driven method, a motor drive method, and an actuator drive method. .

Meanwhile, it may be desirable for the plurality of unit panels 131 to each be made of a rigid material having a predetermined thickness.

In this embodiment, the plurality of unit panels 131 may form one of an origami pattern among a waterbomb pattern, a kresling pattern, and a Yoshimura pattern.

Figure 3 is a diagram showing some of the known origami patterns as examples, and Figure 4 is a diagram schematically showing an upper cylinder to which the origami pattern shown in Figure 3 is applied.

Specifically, Figure 3 (a) is a diagram showing a waterbomb pattern, Figure 3 (b) is a diagram showing a kresling pattern, and Figure 3 (c) is a diagram showing a Yoshimura pattern. This is a drawing showing the pattern.

In addition, Figures 4 (a), (b), and (c) are diagrams schematically showing the upper cylinder to which each of the origami patterns shown in Figure 3 is applied.

Hereinafter, each of the tube-type origami patterns mentioned above will be briefly described as follows.

First, when the plurality of unit panels 131 form a water boom pattern, the upper cylinder 130 can secure sufficient structural strength in each of the unfolded and compressed states.

However, in order to form a smooth circular or polygonal column shape, the water boom pattern requires attaching (or installing) a separate wing surface (facet) to the outer surface, and unlike the origami patterns described later, the degree of height variation is not significant. (see Figure 3 (a) and Figure 4 (a)).

In the case of a cresling pattern, a plurality of triangular (or polygonal) unit panels 131 are provided to form a polygonal column, and a fold line 133 is formed between the plurality of unit panels 131, with variable height. There is an advantage that not only is the degree (hereinafter referred to as compression ratio) significant, but the change (or increase) in the radial width is also slight.

However, as the plurality of unit panels 131 are folded inward (in the direction of the center of rotation), it is difficult to have a smooth cylindrical shape, and as it has a flexible structure with 0 degree of freedom (DOF), strength may be weakened. There is (see Figure 3 (b) and Figure 4 (b)).

The Yoshimura pattern is a pneumatic origami pattern that can expand or contract as air flows in or out. It has a significant compression rate and is made with a flexible structure, so not only is it possible to form a cylinder when high pneumatic pressure is applied, but even if it is made with a flexible structure, it has a high compression ratio. There is an advantage in that the strength can be increased when air is injected under pressure, but there is a problem of sealing the gap around the fold line 133 formed between the plurality of unit panels 131 and it is weak when deployed in the form of a pillar. There may be difficulty maintaining the shape due to rigidity (see Figure 3 (c) and Figure 4 (c)).

In this embodiment, the plurality of unit panels 131 can form various known origami patterns in addition to the above-mentioned origami patterns.

In the origami pattern shown in FIG. 3, the portion indicated by a solid line among the fold lines 133 formed between the plurality of unit panels 131 is mountain folding so that the inner surfaces of the plurality of unit panels 131 are close to or contact each other. This means that the portion indicated by the dotted line means that the outer surfaces of the plurality of unit panels 131 are valley folded so that they are close to or in contact with each other.

Meanwhile, although not shown in the drawing, the upper cylinder 130 of this embodiment may have a plurality of unit panels 131 of a certain shape (such as a diamond or diamond) and arranged in a zigzag shape, such as an origami pattern. It has a significant compression rate, can have various planar shapes depending on the pattern shape when the plurality of unit panels 131 are folded, and can use hard materials due to the one-degree-of-freedom structure.

However, due to the zigzag shape, it may be somewhat difficult to create a smooth cylindrical shape, and a high-torque motor device may be required to fold and unfold the unit panel.

Referring again to FIG. 2, the upper cylinder 130 of this embodiment may have a height-direction length decrease and a radial width change as a plurality of unit panels are folded along a fold line.

As shown in FIG. 2, the upper cylinder 130 of the present embodiment is in an unfolded state (FIG. It can be configured to be deformable between (see (a) in Figure 2) and a compressed state (see (b) in Figure 2) in which a plurality of unit panels are folded together, reducing the length in the height direction and changing the width in the diametric direction. there is.

When the rotor 100 of this embodiment has a width (W) of about 5 m in the diametric direction and a height (H) of 30 m or more from the hull deck, the lower cylinder 110 has a fixed height of approximately 20 m from the hull deck ( h1), and the upper cylinder 130 may have a height h2 of 10 m or more from the top of the lower cylinder 110 (based on the unfolded state).

That is, the height h2 of the upper cylinder 130 in the unfolded state of this embodiment may be smaller than the fixed height h1 of the lower cylinder 110.

Additionally, as the upper cylinder 130 is transformed from the unfolded state to the compressed state, the radial width (W) may increase, but the height may be lowered by a predetermined length.

The height-adjustable rotor sail 10 according to an embodiment of the present invention may be advantageous as the height difference (h3) between the unfolded and compressed states of the upper cylinder 130 is larger, but the unfolded upper cylinder 130 It needs to be designed so as not to interfere with the rotational drive of the rotor 100 due to excessive increase (or decrease) in the radial width (W) of the upper cylinder 130 during the deformation process between the compressed state and the compressed state.

For example, if the lower cylinder 110 has a height (h1) of 20 m and the upper cylinder 130 has a height (h2) of 15 m in the unfolded state, that is, the height (H) of the rotor 100 is 35 m. In the case of having a height (H), it can be designed to have a height difference (h3) of about 10 m or more depending on the deformation between the unfolded and compressed state of the upper cylinder 130, and in the compressed state of the upper cylinder 130, the rotor 100 ) It may be desirable for the height (H) to be 25 m or less.

Meanwhile, the height-adjustable rotor sail 10 according to an embodiment of the present invention may have a Sarrus linkage structure or a Myard linkage structure with a one-degree-of-freedom structure.

The rotor sail 10 to which such a Sarus linkage structure or a Myad linkage structure is applied will be described in detail with drawings in modified examples or embodiments described later.

Figure 5 is a diagram schematically showing a modification of the upper cylinder in a height-adjustable rotor sail according to an embodiment of the present invention, and Figure 6 schematically shows the folding and unfolding operation of the cylinder module constituting the upper cylinder of this modification. This is a drawing, and FIG. 7 is a plan and side view of the upper cylinder shown in FIG. 5 when the length in the height direction is reduced.

In addition, Figure 9 is a diagram sequentially showing the process of changing the height direction length of the upper cylinder of this modified example, and Figure 10 is a diagram showing as a comparative example that the upper cylinder has a hexagonal planar shape and consists of five layers.

Hereinafter, in describing a modified example of the rotor sail according to the present invention, the same component codes are used for components having the same configuration and the same function as the above-described embodiment, and a detailed description of these components is provided to minimize repetitive description. is omitted.

As described above, the height-adjustable rotor sail 10 according to an embodiment of the present invention has a rotor 100 that stands vertically and rotates on the deck of the hull (see reference numeral 'D' in FIG. 2). The rotor 100 of the present embodiment includes a lower cylinder 110 having a constant vertical length from the deck, and an upper cylinder 130 whose height direction is variable at the top of the lower cylinder 110. You can.

Referring to FIG. 5, the upper cylinder 130 of this modified example may be formed by stacking one or more cylinder modules 150 whose length in the height direction is variable at the top of the lower cylinder 110 in the height direction.

As shown in FIG. 6, the cylinder module 150 includes a side portion 151 that can be folded and unfolded in the vertical direction (i.e., height direction) at the top of the lower cylinder 110, and the side portion 151 of the side portion 151. It may include a rib panel 153 coupled to the top.

The side portion 151 is a hinge formed between a pair of side panels 151a and 151b and a pair of side panels 151a and 151b so that the pair of side panels 151a and 151b can be mutually folded and unfolded. It may be composed of a link portion 151c, and a plurality of link portions 151c may be arranged in the circumferential direction from the top of the lower cylinder 110 to form the outer surface of a polygonal pillar.

The pair of side panels 151a and 151b may be provided in the form of a rectangular plate, and may preferably have the same shape and size.

The cylinder module 150 is hinged and rotated by a hinge link portion 151c formed between a pair of side panels 151a and 151b, so that the inner surfaces of the pair of side panels 151a and 151b are folded or unfolded to face each other. The length in the height direction may vary depending on.

In other words, in the cylinder module 150 of this embodiment, the pair of side panels 151a and 151b are folded so that the length decreases in the height direction and the width changes in the diameter direction.

In addition, the side portion 151 may further include hinge joint portions 151d formed at the upper and lower ends in the height direction to be hinged to at least one of the upper end of the lower cylinder 110 and the lower surface of the rib panel 153. You can.

The hinge joint portion 151d may be formed between the side portion 151 and the lower cylinder 110 and between the side portion 151 and the rib panel 153, respectively.

In other words, the hinge joint portion 151d is located at the bottom of one side panel 151a located relatively lower among the pair of side panels 151a and 151b, and at the top of the other side panel 151b. Each can be formed.

The upper cylinder 130 of this modification includes a cylinder module 150 to which a Sarus linkage structure with one degree of freedom is applied, and is folded into a flat planar shape (see (b) in FIG. 5) based on the Sarus linkage. It can be unfolded again in the form of a pillar with a predetermined height (see (a) of FIG. 5).

As shown in (a) of FIG. 6, the hinge link portion 151c is located on the inside of the side portion 151 to form a column-shaped outer surface and serves as a connection portion between a pair of side panels 151a and 151b. (Or, it can be designed so that no gaps occur at the boundary surface).

That is, as shown in FIG. 6, the hinge link portion 151c is a pair of side panels 151a with a pair of side panels 151a and 151b standing vertically on the top of the lower cylinder 110. , 151b), it may be desirable to be located inside the boundary between them.

In addition, the hinge joint portion 151d connecting between the side portion 151 and the lower cylinder 110 and between the side portion 151 and the rib panel 153 is located at the upper end of the pair of lower cylinders 110. With the pair of side panels (151a, 151b) standing parallel to the height direction, that is, perpendicular to the deck, the interface between the side portion (151) and the lower cylinder (110) and between the side portion (151) and the rib panel (153) It may be desirable to be located outside of.

Referring to FIG. 6, the lower end of the side part 151 is shown to be hingedly connected to the upper end of the lower cylinder 110, and the upper end of the side part 151 is shown to be hinged to the rib panel 153. However, the present invention does not include this. It is not limited.

For example, when the upper cylinder 130 of this modification is made by stacking one or more cylinder modules 150, the side portions of the remaining cylinder modules 150 except for the cylinder module 150 forming the uppermost layer and the lowermost layer ( It may be natural that the upper and lower ends of 151) can be hinged to each of a pair of rib panels 153 adjacent to each other in the height direction.

Hereinafter, for convenience of explanation, the side panel located relatively lower among the pair of side panels 151a and 151b constituting the side portion 151 will be referred to as the first side panel 151a, and the first side panel The side panel located above (151a) will be referred to as the second side panel (151b).

That is, the side portion 151 includes a first side panel 151a and a second side panel 151b of the same shape and size, and the first side panel 151a and the second side panel 151b are hinge link parts. By (151c), the inner surfaces can be folded to face each other or unfolded to be parallel to the height direction.

In addition, the hinge link portion 151c connects the first side panel 151a and the second side panel 151b in a state in which the first side panel 151a and the second side panel 151b are spread out parallel to each other in the height direction. It may be located inward from the boundary between the first side panel 151a and the second side panel 151b (in the direction of the rotation center of the rotor) to prevent a gap from occurring at the boundary between them.

Here, the hinge joint portion 151d may be positioned outward from each of the lower boundary surface of the first side panel 151a and the upper boundary surface of the second side panel 151b.

In this embodiment, the first side panel 151a and the second side panel 151b are made of a material that has a predetermined thickness (e.g., 40T) and has sufficient rigidity to maintain the shape of a pillar by standing parallel to the height direction. It may be desirable to do so.

The rib panel 153 is coupled to the upper end of a plurality of side portions 151 arranged in the circumferential direction. As shown in FIG. 7, a plurality of unit ribs 153a arranged in the circumferential direction are integrally formed to form a hollow body. It may have a portion 153b.

The rib panel 153 may have a polygonal planar shape with a hollow portion 153b in which a plurality of unit ribs 153a having a (planar) shape such as a radial shape or fan shape are arranged in the circumferential direction, and each side has a hollow portion 153b. It may be desirable to have a planar shape of a regular polygon (hexagon, octagon, or hexagon, etc.) with the same length.

The upper cylinder 130 of this modified example can be applied in various ways by changing the planar shape of the rib panel 153 or adjusting the number of cylinder modules 150, so as to vary the number of squares (i.e., vertices) and the number of layers.

For reference, as the number of squares of the rib panel 153 having a polygonal planar shape increases, the upper cylinder 130 may become closer to a circle, and one or more layers are formed in the height direction from the top of the lower cylinder 110. As the number of cylinder modules 150 increases, the width expanded in the radial direction can be reduced in the process of lowering the height of the rotor 100.

However, as the number of squares of the rib panel 150 or the number of cylinder modules 150 (i.e., the number of layers) increases, the installation difficulty (or manufacturing complexity) increases due to the increase in the number of members constituting the upper cylinder 150. As it increases, there is a risk of excessive weight.

The upper cylinder 130 of this modified example has a hexagonal plan shape, as shown in FIG. 9, and may be formed of five layers. However, as shown in FIG. 5, the rib panel 153 has a hexagonal shape. It may be desirable to have a planar shape and be formed of 15 layers.

Figure 10 is a diagram schematically showing the driving mechanism of the cylinder module in the upper cylinder of this modified example, Figure 11 is a diagram explaining the installation position of the air pocket shown in Figure 10, and Figure 12 is a diagram showing the upper cylinder of this modified example. This is a drawing to explain how to maintain the shape using a locking means.

Referring to FIGS. 10 and 11 , the upper cylinder 130 of this modified example may further include a module driving unit 170 that drives the cylinder module 150 to vary its height.

The module driving unit 170 supplies air to an air pocket 171 installed between the lower cylinder 110 and the rib panel 153 or between a pair of rib panels 153, and to the inside of the air pocket 171. It may include a pump unit 173 for doing this and an air hose 175 connecting the air pocket 171 and the pump unit 173.

A plurality of air pockets 171 are installed in the circumferential direction at the bottom of the rib panel 153, and are installed symmetrically on one side and the other side with respect to the plane center of the upper cylinder 150, that is, more than one pair may be provided. You can.

In addition, when a plurality of cylinder modules 150 are stacked (or connected) in the height direction from the top of the lower cylinder 110, it may be desirable for the air pocket 171 to be provided for each cylinder module 150. there is.

In the cylinder module 150, as air is supplied into the air pocket 171, a pair of side panels 151a and 151b, that is, the first side panel 151a and the second side panel 151b, are mutually expanded. A pillar-shaped exterior can be formed.

In addition, in the cylinder module 150, as the air inside the air pocket 171 is discharged to the outside, the first side panel 151a and the second side panel 151b are mutually folded to reduce the length in the height direction, The width may vary in the diametric direction.

In this embodiment, an additional pump unit 173 may be provided to supply air into the air pocket 171, but the increase in cost due to installation of additional equipment is avoided by utilizing the pump unit 173 already installed on the ship. Minimizing it may be desirable.

Additionally, the module driving unit 270 may preferably include a pump control unit (not shown) for controlling the pump unit 273.

The upper cylinder 150 of this modified example may further include a locking mechanism 190 for maintaining the column shape of the cylinder module 150, and a pair of side panels 151a and 151b are mutually aligned. When it is expanded to form a pillar-shaped outer surface, the operation of the pump unit 173 can be stopped through the pump control unit. This locking means 190 will be described later.

As shown in FIG. 10, the cylinder module 150 connects the surfaces between the lower cylinder 110 and the rib panel 153 or a pair of rib panels 153 facing each other, thereby forming the cylinder module 150. ) may further include a reinforcing portion 155 that supports the rib panel 153 in the process of varying the length in the height direction.

The reinforcement portion 155 may include a pair of reinforcing panels 155a and 155b that mutually fold and unfold in the height direction, similar to the side portion 151.

The reinforcement portion 155 is a cylinder module 150 having one layer along with a plurality of side portions 151 arranged in the circumferential direction and a rib panel 153 that is coupled to the top of the side portion 151 and has a polygonal planar shape. ) can be formed.

In addition, similar to the side portion 151, the reinforcing portion 155 may naturally have the same shape and size of a pair of reinforcing panels 155a and 155b that fold and unfold each other.

A plurality of the pair of reinforcement panels 155a and 155b may be installed in the circumferential direction to enable stable support without tilting the rib panel 153 during the process of changing the height of the cylinder module 150.

In other words, the reinforcement portion 155 may be installed on each of the unit ribs 153a constituting the rib panel 153, and may be provided to correspond to the number of side portions 151 hinged to the unit ribs 153a. , As air is supplied into the air pocket 171 of the aforementioned driving unit 170, the pair of reinforcement panels 155a and 155b can be folded or unfolded in the height direction.

Referring to FIG. 12, the upper cylinder 130 of this modified example may further include a locking means 190 for maintaining the pillar shape by unfolding the pair of side panels 151a and 151b.

The cylinder module 150 may have a plurality of through holes 157 formed at ends where a pair of adjacent side parts 151 face each other among the plurality of side parts 151 .

As shown in FIG. 12, the locking means 190 may include a rope member 191 inserted in a zigzag shape into a plurality of through holes 157 formed in the side portion 151.

The upper cylinder 130 of this modified example has a plurality of side panels 151a and 151b in a state in which the height of the cylinder module 150 is at its maximum, that is, in a state in which a pair of side panels 151a and 151b are mutually unfolded with respect to the hinge link portion 151c. After inserting the rope member 191 into the through hole 157 (see (a) of FIG. 12), the rope member 191 is pulled taut in the height direction of the cylinder module 150 ((in FIG. 12) (see b)), the column shape of the cylinder module 150 can be maintained.

In addition, the upper cylinder 130 of the present modified example is more rigid as the rope member 191 of the locking means 190 is inserted into the plurality of through holes 157 in a zigzag shape (see (c) of FIG. 12). It can be fixed stably.

Referring to Figure 12, it is shown that the locking means 190 is provided at one corner of the upper cylinder 130 of this modified example, but this is expressed as an example, and the upper cylinder 130 of this modified example has each of the circumferential corners. It may be natural that the locking means 190 is provided.

On the contrary, when the rope member 191 inserted into the plurality of through holes 157 is loosened and the air inside the air pocket 171 is discharged to the outside, the upper cylinder 130 is moved by the self-weight of the cylinder module 150. ) can be lowered.

Meanwhile, a plurality of through holes 157 for inserting the rope member 191 may be formed in the height direction at each end where a pair of side parts 151 adjacent in the circumferential direction face each other. The through holes 157 ) design parameters, such as adjusting the spacing (L1, L2) between the through holes 157 in the horizontal direction (or circumferential direction) and vertical direction (i.e., height direction), or reducing the number of floors, etc. Through design changes, excessive frictional force acting on the rope member 191 can be minimized.

Figure 13 is a schematic perspective view showing a height-adjustable rotor sail according to another embodiment of the present invention, and Figure 14 is a diagram showing the rotor shown in Figure 13 excluding the configuration of the second length variable part. 15 is a diagram showing a state in which the height direction length of the first length variable portion shown in FIG. 14 is reduced.

In addition, Figure 16 is a diagram showing an intermediate step in the process of varying the length of the first length variable portion shown in Figures 14 and 15, Figure 17 is a plan view of Figure 14, and Figure 18 is a portion of Figure 17. This is an enlarged drawing.

Hereinafter, in describing another embodiment of the height-adjustable rotor sail according to the present invention, the rotor sail 20 of this embodiment is distinguished from the rotor sail 10 of the above-described embodiment by assigning reference numeral '20'. Let's do it.

Referring to Figure 13, the height-adjustable rotor sail 20 according to another embodiment of the present invention may be provided with a rotor 200 that stands vertically on the deck of the hull and rotates, similar to the above-described embodiment. You can.

As shown in FIG. 13, the rotor 200 of this embodiment includes a base part 210 rotating on the deck of the hull, and a rotor rotating with the base part 210 at the top of the base part 210 in the height direction. A first variable length part 230 whose length is variable, and a second variable length connected to the top of the first variable length part 230 so that the length in the height direction is variable together with the first variable length part 230. It may include part 250.

As shown in FIG. 13, the base portion 210 includes a cylindrical base body 211 and a connection portion 213 formed at the top of the base body 210 and connected to the first length variable portion 230. may include.

The base body 211, similar to the lower cylinder 110 of the above-described embodiment, stands on the deck of the hull and rotates, and may have a constant vertical length in the height direction.

For example, when the rotor 200 of this embodiment has a width of about 5 m in the diametric direction and a height of 30 m or more, the base body 211 may have a length of about 20 m in the height direction from the deck of the hull.

The connection part 213 is for connecting the base part 210 and the first length variable part 230, and may be formed to protrude upward from the top of the base body 211.

Although not shown in detail in the drawings, the connection portion 213 of this embodiment protrudes from the top of the base body 211 and may have a cross-sectional area (based on the plane) that is smaller than the cross-sectional area of the base body 211.

In addition, the connection part 213 of the present embodiment, unlike the base body 211 in the form of a cylinder, may be formed in the form of a polygonal pillar with a polygonal planar shape. Regarding the configuration of this connection part 213, the first length variable part It will be described later along with (230).

As shown in FIG. 14, the first length variable portion 230 is located between a plurality of lower deployment panels 231 disposed in the circumferential direction at the top of the base portion 210 and a plurality of lower deployment panels 231. It may include a lower deployment guide portion 233 that connects and guides the plurality of lower deployment panels 231 to simultaneously fold and unfold.

The plurality of lower deployment panels 231 are rotatably connected to the upper end of the base portion 210, and are folded so that the upper end faces upward, as shown in FIG. 15, or as shown in FIG. 14, It may be unfolded in a direction perpendicular to the base portion 210.

As described above, the connection portion 213 formed at the top of the base body 211 may be formed in the shape of a polygonal column, unlike the base body 211 in the cylindrical shape. Each of the plurality of lower deployment panels 231 is a polygonal column. It may be disposed along the upper circumference of the shaped connection portion 213.

In other words, each of the plurality of lower deployment panels 231 may be installed to be rotatable in the vertical direction with the upper edge of the connection portion 213 as the center of rotation.

In addition, a panel receiving groove 211a may be formed at the top of the base body 211 in the circumferential direction of the connecting portion 213, and the panel receiving groove 211a is concave to correspond to the outer shape of the lower deployment panel 231. It may have a rounded shape, and when the lower deployment panel 231 is unfolded, a portion of the lower end of the lower deployment panel 231 can be accommodated.

The length of the first length variable portion 230 of this embodiment may be variable in the height direction as the plurality of lower deployment panels 231 are folded or unfolded at the upper edge of the base portion 210.

The lower deployment guide portion 233 connects the plurality of lower deployment panels 231, and includes a pair of lower guide panels 233a and a lower folding line formed between the pair of lower guide panels 233a ( 233b) may be included.

As shown in FIG. 16, the pair of lower guide panels 233a may each be connected to a pair of neighboring lower deployment panels 231 among the plurality of lower deployment panels 231.

In the lower deployment guide portion 233 of this embodiment, when the plurality of lower deployment panels 231 are folded, a pair of lower guide panels 233a have a first length variable shape by the lower folding line 233b provided in the center. It can be folded to face the inside (inner direction) of the unit 230, that is, toward the rotation center axis of the rotor 200.

In other words, when the plurality of lower deployment panels 231 are folded, the lower deployment guide portion 233 is configured such that the outer surfaces of a pair of lower guide panels 233a come into contact with each other, as shown in FIG. The line 233b can be folded to be located inside the first length variable portion 230, and conversely, when the plurality of lower deployment panels 231 are unfolded, as shown in FIG. 14, as long as they are adjacent to each other. A pair of lower guide panels 233a, each connected to a pair of lower deployment panels 231, may be unfolded and positioned in a straight line.

The lower deployment guide portion 233 of this embodiment is provided between the plurality of lower deployment panels 231 and may serve to guide the plurality of lower deployment panels 231 to simultaneously fold and unfold.

In this embodiment, the pair of lower guide panels 233a may have the same size and shape, and may preferably have a triangular or fan-shaped shape, as shown in FIGS. 14 and 16.

In addition, the first length variable portion 230 of the present embodiment may further include a fixing means (not shown) for fixing the shape and securing the rigidity of the folded structure of the plurality of lower deployment panels 231.

The fixing means may include one or more bolts (see arrows in FIG. 18) that penetrate vertically through one side of the pair of mutually folded lower guide panels 233a, and the pair of lower guide panels (233a) can be connected using a bolting method. The outer surfaces of 233a) can remain in contact with each other.

In addition, the fixing means of this embodiment is not only the bolting method, but of course, various known fixing methods can be applied as long as the outer surfaces of the pair of lower guide panels 233a can be maintained in contact with each other.

The rotor 200 of this embodiment includes a first length variable portion 230 provided at the top of the base portion 210, a plurality of lower deployment panels 231 arranged along the upper edge of the polygonal column-shaped connecting portion 213, and , It may have a mid-linkage structure with one degree of freedom, including a lower deployment guide portion 233 connecting the plurality of lower deployment panels 231, and the plurality of lower deployment panels 231 can be folded and unfolded simultaneously. It is operated so that the length in the height direction can be varied.

In this embodiment, the connection portion 213 formed at the top of the base body 211 may have a hexagonal planar shape, and six lower deployment panels 231 along the upper peripheral edge can be rotated in the up and down directions. Can be installed.

Hereinafter, in the first length variable portion 230 of this embodiment, six lower deployment panels 231 are disposed along the upper peripheral edge of the connection portion 213 having a hexagonal plan shape, and six lower deployment panels 231 ) It will be explained as an example that the lower deployment guide portion 233 is folded and unfolded inward.

That is, the first length variable portion 230 of the present embodiment has a miad linkage structure in which five folds (or wrinkles) (unmarked) are formed radially at each of the six vertices (six points) at the top of the connection portion 213. You can have

Referring again to FIG. 13, the first length variable portion 230 of the present embodiment is folded so that the upper ends of the plurality of lower deployment panels 231 face upward, and the base body 210 of the base portion 210 ) may be configured to have a cylindrical shape with the same or similar diameter.

As shown in FIGS. 14 to 18, the lower deployment panel 231 includes a lower inner plate 231a rotatably connected to the upper edge of the connecting portion 213, and an outer portion at the left and right ends of the lower inner plate 231a. It may include a pair of lower side plates 231b extending toward each other and a lower outer plate 231c having an arc-shaped cross-section by connecting the pair of lower side plates 231b.

The lower inner plate 231a is rotatably connected to the upper edge of the connection portion 213 and, together with the above-described lower deployment guide portion 233, has a rib (Rib) that reinforces the cylindrical structure of the first length variable portion 230. ) can play a role.

The lower outer plate 231c may have an arc shape by connecting a pair of lower side plates 231b extending to both ends of the lower inner plate 231a.

In this embodiment, the lower outer plate 231c is formed to protrude in the circumferential direction from a pair of lower side plates 231b, as shown in FIGS. 17 and 18, and forms a structure of the plurality of lower development panels 231. In a state where the upper end is folded upward, it may be desirable to prevent a gap from being created between the lower outer plates 231c.

In addition, the lower deployment panel 231 of this embodiment is composed of a lower inner plate 231a, a pair of lower side plates 231b, and a lower outer plate 231c, and is formed in the form of a hollow shell with an empty interior. You can.

The first length variable portion 230 of this embodiment can achieve weight reduction by having each of the plurality of lower deployment panels 231, which are folded and unfolded at the top of the base portion 210, in the form of a hollow shell. , the stability of the folding and unfolding structure of the lower deployment panel 231 can be improved.

In addition, the first length variable part 230 of this embodiment can have a stronger cross-sectional structure compared to the existing rotor sail through the lower inner plate 231a and the lower deployment guide part 233, which serve as a rib, and the rotor ( It can have the advantageous effect of minimizing the influence of centrifugal force generated by the rotation of 200 and the bending (or bending) of the lower deployment panel 231.

FIG. 19 is a diagram showing the second length variable part connected to the top of the first length variable part shown in FIG. 16 separately, and FIG. 20 is a diagram sequentially showing the process of changing the height direction length of the rotor shown in FIG. 13. , and FIG. 21 is a diagram schematically showing the driving mechanisms of the first length variable part and the second length variable part in FIG. 20.

The second length variable part 250 is connected to the top of the first length variable part 230, as shown in FIG. 13, and is connected with the first length variable part 230, as shown in FIG. 20. The length in the height direction may be variable.

The second length variable portion 250 of this embodiment may be vertically symmetrical with the first length variable portion 230.

That is, the second length variable part 250 of this embodiment may have the same or similar configuration as the above-described first length variable part 250.

Referring to FIG. 19, the second length variable portion 250 of the present embodiment includes a plurality of upper deployment panels 251 disposed in the circumferential direction at the top of the first length variable portion 230, and a plurality of upper deployment panels. (251) It may include an upper deployment guide portion 253 connecting between the two.

As shown in FIG. 19, the upper deployment panel 251 includes an upper inner plate 251a, a pair of upper side plates 251b extending outward from the left and right ends of the upper inner plate 251a, and a pair of upper It may be formed in the form of a hollow shell with an empty interior, including an upper outer plate 251c having an arc-shaped cross-section by connecting the side plates 251b.

In this embodiment, the upper shell plate 251c, which has an arc shape by connecting a pair of upper side plates 251b, is a pair of upper side plates, similar to the lower shell plate 231c of the lower deployment panel 231 described above. It is formed to protrude and extend in the circumferential direction at (251b), so that a gap is not created between a pair of adjacent upper deployment panels 251 when the upper ends of the plurality of upper deployment panels 251 are folded downward. This may be desirable.

As shown in FIG. 19, the upper deployment guide portion 253 includes a pair of upper guide panels 253a and an upper folding line 253b formed between the pair of upper guide panels 253a. , the pair of upper guide panels 253a can be folded inward by the lower folding line 253b provided in the center.

In addition, the upper deployment guide portion 253 of this embodiment, similar to the above-described upper deployment guide portion 233, is a pair of upper guide panels 253a through fixing means (not shown) including one or more bolts. The outer surfaces of the can be maintained in contact with each other, and together with the upper inner plate 251a of the above-described upper deployment panel 251, it can serve as a rib to reinforce the cylindrical structure of the second length variable portion 250.

Since the upper deployment panel 251 and the upper deployment guide portion 253 have the same or similar functions as the lower deployment panel 231 and the lower deployment guide portion 233 of the first length variable portion 230, repetitive In order to minimize detailed explanation, further detailed explanation will be omitted.

In this embodiment, the upper end of the second length variable part 250 may further include a top finishing part (not shown) to which the upper ends of the plurality of upper deployment panels 251 are hinged, and the upper finishing part has a first length. It may have a similar configuration to the base portion 210 provided below the variable portion 230.

That is, the upper end of the present embodiment, although not shown in the drawing, may be composed of a cylindrical body and a protrusion protruding from the bottom of the body in the form of a polygonal pillar, and may include a plurality of upper deployment panels 251, in more detail. The upper inner plate 251a may be provided to be rotatable in the vertical direction with the lower edge of the protrusion as the center of rotation.

In this embodiment, the plurality of upper deployment panels 251 may be configured to be folded or unfolded relative to each of the plurality of lower deployment panels 231.

That is, the plurality of upper deployment panels 251 may be hinged to each of the plurality of lower deployment panels 231, and a plurality of upper deployment panels ( The lower end of 251 may be operated to face downward or to be positioned in a direction perpendicular to the base portion 210.

In addition, when the upper deployment panel 251 and the lower deployment panel 231 are mutually folded, the lower end of the upper inner panel 251 is formed so that the upper inner panel 251 and the lower inner panel 231a are in contact with each other and overlapped. (231a) It may be desirable to have a hinged connection at the upper end.

The second length variable part 250 of this embodiment may have a mid-linkage structure with one degree of freedom, similar to the first length variable part 230, and the plurality of upper deployment panels 251 are connected to the plurality of lower parts. It is hingedly connected to the deployment panel 231 and the length in the height direction can be varied as it is folded and unfolded together with the plurality of lower deployment panels 231 (see FIG. 20).

Meanwhile, the rotor 200 of this embodiment may further include a variable driving unit 270 that allows the height direction length of the first length variable part 230 and the second length variable part 250 to be adjusted.

As shown in FIG. 21, the variable drive unit 270 has a pulley unit 271 provided at the top of the lower deployment panel 231, and one end of the upper deployment panel 251 via the pulley unit 271. It may include a wire portion 273 connected to the bottom and the other end extending in the longitudinal direction of the lower deployment panel 231.

Accordingly, the rotor 200 of this embodiment pulls the other end of the wire portion 273 extending in the longitudinal direction of the lower deployment panel 231 to form the first length variable portion 230 and the second length variable portion 250. It can be driven to unfold each other (see (a) of Figure 21), and on the contrary, if the wire part 273 is slowly released, the first length variable part 230 and the second length variable part 250 will be mutually folded due to their own weight. (see (b) in FIG. 21).

As described above, the lower deployment panel 231 of the first length variable portion 230 and the upper deployment panel 251 of the second length variable portion 250 are the upper end of the lower inner plate 231a and the upper inner plate 251a. ) is hinged at the bottom, and can be folded or unfolded with the hinged portion as the center of rotation (see reference numeral 'H' in FIG. 21).

The pulley portion 271 may be provided inside the upper end of the lower deployment panel 231, which has a hollow shell shape.

The pulley portion 271 of this embodiment may also be provided to correspond to the number of lower deployment panels 231.

For example, the first length variable portion 230 includes six lower deployment panels 231, and the second length variable portion 250 includes six upper deployment panels hinged to each of the six lower deployment panels 231. When the deployment panel 251 is included, the pulley portion 271 may be provided inside the upper end of each of the six lower deployment panels 231.

The wire portion 273 has one end connected to the lower end of the upper deployment panel 251, more specifically, the lower end of the upper shell plate 251a, and the other end is connected to the inside of the lower deployment panel 231 via the pulley portion 271. It may be desirable to configure it to be connected.

In this embodiment, when a plurality of pulley parts 271 are provided corresponding to the number of lower deployment panels 231, the wire part 273 is connected to the lower deployment panel 231 via each pulley part 271. The upper deployment panel 251 can be connected to form a plurality of sets.

The wire portion 273 of this embodiment may extend around the base portion 210 or to the hull deck through the inside of the lower deployment panel 231.

In addition, the variable driving unit 270 of this embodiment may further include a tension maintaining unit connected to the other end of the wire unit 273 and capable of maintaining tension applied to the wire unit 273.

The tension maintaining unit may be a wire winding wheel that can wind or unwind the wire by rotating the bobbin. In addition, if it can maintain the tension applied to the wire unit 273 in any state, it may be a known A variety of devices may be used.

Hereinafter, a method of adjusting the height of the height-adjustable rotor sail 20 of this embodiment will be briefly described.

First, by providing a pulley portion 271 at the upper end of the lower deployment panel 231 and winding or unwinding the wire portion 273 connected to the lower end of the upper deployment panel 251 via the pulley portion 271, The first length variable portion 230 including a plurality of lower deployment panels 231 and the second length variable portion 250 including a plurality of upper deployment panels 251 may contact or unfold.

After winding or unwinding the wire portion 273, the tension applied to the wire portion 273 is maintained through the tension maintaining portion, thereby changing the height direction length of the first length variable portion 230 and the second length variable portion 250. can be fixed.

In a state in which the first length variable portion 230 and the second length variable portion 250 are mutually unfolded, the outer surfaces of a pair of lower guide panels 233a connecting the plurality of lower deployment panels 251 are in contact with each other. It can be fixed.

The present invention is provided with a rotor that stands vertically on the deck of the hull, so that propulsive force can be obtained by the Magnus effect during operation, thereby reducing the fuel efficiency of the ship and improving energy efficiency.

In addition, at least part of the length of the rotor in the height direction can be adjusted so that the height of the rotor can be adjusted as needed, such as when a ship wants to pass through a pier or dock. Even if the height of the rotor is adjusted, it can be installed on the top of the deck or inside the hull. Since it does not require additional space, the impact on the vessel's loadable cargo capacity can be minimized.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications, changes, and substitutions can be made by those skilled in the art without departing from the essential characteristics of the present invention. will be.

In the above-described specific embodiments, components included in the invention are expressed in singular or plural numbers depending on the specific embodiment presented.

However, the singular or plural expressions are selected to suit the presented situation for convenience of explanation, and the above-described embodiments are not limited to singular or plural components, and even if the components expressed in plural are composed of singular or , Even components expressed as singular may be composed of plural elements.

In other words, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments and the attached drawings. .

Therefore, the scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

10, 20: Rotor sail
100, 200: Rotor
110: lower cylinder
130: upper cylinder
131: Unit panel
133: Folding line
150: Cylinder module
151: Side (panel) portion 151a: First side panel (bottom)
151b: Second side panel (upper)
151c: Hinge link part (mountain fold)
151d: Hinge joint part (bone fold)
153: Rib panel 153a: Unit rib
153b: Ministry of China
155: Reinforcement (panel) part 155a, 155b: Reinforcement panel
157: Through hole
170: Module driving unit
171: Air pocket
173: Pump unit
190: Locking means
191: Rope member
210: base part
211: Base body 211a: Panel receiving groove
213: connection part
230: first length variable portion
231: lower deployment panel 231a: lower inner plate
231b: lower side plate
231c: lower shell plate
233: lower deployment guide part 233a: lower guide panel
233b: Lower folding line
250: second length variable portion
251: upper deployment panel 251a: upper inner plate
251b: upper side plate
251c: upper shell
253: upper deployment guide part 253a: upper guide panel
253b: Upper folding line
270: Variable driving unit
271: Pulley unit
273: Wire part

Claims (17)

It is a rotor sail that generates propulsion by the Magnus effect using the wind while the ship is in operation,
a lower cylinder having a vertical length fixed in the height direction from the hull and rotating on the deck of the hull; and
An upper cylinder connected to the upper end of the lower lower cylinder and rotating together with the lower cylinder,
The upper cylinder,
One or more cylinder modules stacked on top of the lower cylinder and having a variable length in the height direction; and
A height-adjustable rotor sail including a module driving unit that varies the length of the cylinder module in the height direction. According to clause 1,
The cylinder module is,
A plurality of side parts are disposed in a circumferential direction at the top of the lower cylinder to form a pillar-shaped outer surface;
A rib panel having a polygonal planar shape and having the plurality of side portions joined along the circumferential edge; and
A height-adjustable rotor sail including a reinforcement portion for supporting the rib panel in the process of changing the height direction of the cylinder module. According to clause 2,
The module driving unit,
An air pocket installed at the lower part of the rib panel;
A pump unit for supplying air into the air pocket; and
A height-adjustable rotor sail including a pump control unit for controlling the pump unit. According to clause 3,
The air pocket is,
A height-adjustable rotor sail installed in a plurality in the circumferential direction at the bottom of the rib panel and installed symmetrically on one side and the other with respect to the plane center of the cylinder module. According to clause 3,
The side part,
A height-adjustable rotor sail that has a rectangular plate shape and includes a pair of side panels that fold or unfold against each other in the height direction. According to clause 5,
The cylinder module is,
A height-adjustable rotor sail in which the pair of side panels are mutually expanded as air is supplied into the air pocket to form a pillar-shaped outer surface. According to clause 5,
The cylinder module is,
As the air inside the air pocket is discharged to the outside, the pair of side panels are mutually folded, reducing the length in the height direction and changing the width in the radial direction. A rotor sail with adjustable height. According to clause 5,
The cylinder module is,
A height-adjustable rotor sail further comprising a locking means for maintaining the pillar shape by unfolding the pair of side panels. According to clause 8,
A height-adjustable rotor sail in which a pair of adjacent side parts among the plurality of side parts has a plurality of through holes formed at ends facing each other. According to clause 9,
The locking means is,
A height-adjustable rotor sail including a rope member inserted into the plurality of through holes in a zigzag shape. According to clause 2,
The rib panel is,
Height-adjustable rotor sail consisting of a regular polygonal planar shape with a hollow portion. According to clause 2,
The rib panel is,
A height-adjustable rotor sail that has a trapezoidal shape and includes a plurality of unit ribs each coupled to the plurality of side parts. According to clause 2,
The reinforcement part,
A height-adjustable rotor sail that includes a pair of reinforcing panels that mutually fold and unfold in the height direction. According to clause 12,
The reinforcement part,
A height-adjustable rotor sail provided in plural pieces connected to each of the plurality of unit ribs. A method of adjusting the height of an adjustable rotor sail according to claim 1,
Air is supplied into the air pocket installed at the bottom of the rib panel of the cylinder module so that the side portion of the cylinder module forms a pillar-shaped outer surface,
A method of adjusting the height of a rotor sail in which the air inside the air pocket is discharged to the outside so that the length of the cylinder module in the height direction is reduced and the width in the diametric direction is changed. According to clause 15,
A method of adjusting the height of a rotor sail in which a rope member is inserted in a zigzag shape into a plurality of through holes formed in the side portion, and then the rope member is pulled tightly in the height direction to secure the cylinder module. According to clause 16,
A method of adjusting the height of a rotor sail by stopping the operation of the pump unit to supply air into the air pocket through the pump control unit after fixing the cylinder module.

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