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KR-102962690-B1 - Wind auxiliary propulsion system using flap

KR102962690B1KR 102962690 B1KR102962690 B1KR 102962690B1KR-102962690-B1

Abstract

The present invention relates to a wind-assisted propulsion system for a ship capable of increasing lift by reducing vortices through the flaps, wherein the flaps move laterally relative to a column-shaped body according to the direction of the wind blowing from the front during the ship's navigation, thereby adjusting the air intake and discharge directions on the left and right sides, and injecting air through the flaps. The wind-assisted propulsion system for a ship according to the present invention comprises: a wing body portion installed on the upper surface of the ship's deck, having intake ports on both sides formed to be open to the outside for air intake; and a flap portion installed laterally at the rear of the wing body portion, which slides relative to the wing body portion according to the direction of the wind blowing during the ship's navigation to open one of the intake ports on both sides of the wing body portion while simultaneously closing the other intake port, and having a discharge port formed to be open to the outside for the air introduced through the intake port of the wing body portion. and, a blowing module installed inside the wing body portion, which forcibly sucks in air through one side intake port opened by the flap portion and then discharges it to the outside through the discharge port of the flap portion; may be included.

Inventors

  • 김정은
  • 오우준
  • 최성윤

Assignees

  • 재단법인한국조선해양기자재연구원

Dates

Publication Date
20260511
Application Date
20240725

Claims (8)

  1. A wing body (110) installed on the upper surface of the deck of a ship, having a first intake port (111) and a second intake port (112) formed to be open to the outside for air to be introduced on each of the two sides; A flap portion (120) having two side portions formed with curved surfaces corresponding to the rear curved surface of the wing main body (110) and a rear end formed in a pointed shape, installed to slide laterally at the rear of the wing main body (110), sliding relative to the wing main body (110) according to the direction of the wind blowing during the navigation of the ship to open one of the first intake port (111) and the second intake port (112) of the wing main body (110) while simultaneously closing the other intake port, and formed such that an outlet through which air introduced through the first intake port (111) or the second intake port (112) of the wing main body (110) is discharged is opened to the outside; and, A blowing module (130) installed inside the wing main body (110) forcibly sucks in air through one side intake port opened by the flap part (120) and then discharges it to the outside through the discharge port of the flap part (120); Includes, The discharge port of the flap portion (120) includes a first discharge port (121) and a second discharge port (122) that communicate independently with the air discharge passages (133, 134) of the blowing module (130) according to the direction of movement, and the first discharge port (121) and the second discharge port (122) extend in an alternating manner from the inside of the flap portion (120) and then communicate to the outside through the rear portions of both sides of the flap portion (120). The blowing module (130) above is, A blower housing (135) having a first suction passage (131) and a second suction passage (132) installed to communicate independently with the first suction port (111) and the second suction port (112) of the wing body part (110) respectively inside the wing body part (110), and a first air discharge passage (133) and a second air discharge passage (134) installed to communicate individually with the first discharge port (121) and the second discharge port (122) according to the direction of movement of the flap part (120); An impeller (136) installed within the blower housing (135) that sucks in air through either the first suction path (131) or the second suction path (132) and then discharges air through either the first air discharge path (133) or the second air discharge path (134); and, A fan motor (137) that rotates the above impeller (136); A marine wind-assisted propulsion system including
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  4. In claim 1, the wing body portion (110) is a ship wind-assisted propulsion system having a cross-sectional shape of any one of a circular, elliptical, streamlined, and airfoil shape.
  5. In claim 1, the upper and lower portions of the flap portion (120) are connected to a slide rail (140) installed in a curved shape on the upper and lower portions of the wing body portion (110), and the wind-assisted propulsion system for a ship moves along the slide rail (140) by wind power.
  6. A ship wind-assisted propulsion system according to claim 1, further comprising a mesh-shaped boundary layer screen (115) installed in the intake of the wing body part (110) so as to be connected to the side of the wing body part (110).
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Description

Wind auxiliary propulsion system for ships using flaps The present invention relates to an auxiliary propulsion device for a ship, and more specifically, to a wind-assisted propulsion system for a ship that is installed on the deck of the ship and increases the ship's propulsion force by generating lift from the wind blowing during navigation. Centered on the shipping industry, there is a growing trend of utilizing wind energy to respond to marine environmental regulations and supplement ship propulsion. Wind-powered vessels generally utilize wind propulsion devices as auxiliary power while maintaining the existing fuel system. Wind propulsion devices utilizing such wind energy can be classified into rotor sails, wing sails, kites, etc. A rotor sail is a system that generates thrust by utilizing the pressure difference caused by wind, achieved by vertically erecting a cylindrical column on the deck of a ship and rotating it. It is a technology that propels a ship using the Magnus Effect. The Magnus Effect refers to the phenomenon where a force propelling a sphere or cylinder forward is generated when it rotates and passes through a fluid, causing it to bend from an area of high pressure to an area of low pressure. Therefore, the Magnus Effect generates a transverse force as fluid flows into a cylinder rotating around its length, direction, and axis; this transverse force acts perpendicular to the direction of the incoming flow, thereby generating thrust. A wing sail is a system that obtains propulsion by receiving wind while fixed in a certain direction, having an airfoil-shaped cross-section. A column or support is installed on the upper deck of a ship, and an airfoil that receives wind can be installed on this column or support. The airfoil can be rotated to an angle that maximizes wind reception by means of a hydraulic actuator, etc. The leading edge and trailing edge of such an airfoil can be positioned parallel to a column or support. When the airfoil is rotated by an actuator and positioned to receive maximum wind power, it generates lift by receiving wind, and this lift can generate maximum thrust. Korean Patent Publication No. 10-2024-0045860 discloses a variable wing sail for ships that controls lift by placing an actuator inside the wing sail to adjust the angle of a flap formed on the side and changing the direction of the flap according to the direction of the wind. However, the aforementioned variable wing sail increases lift by adjusting the angle of the flaps, so there is a limit to the amount of lift that can be increased, and there is a problem in that it is difficult to actively control the angle of the flaps according to changes in wind direction. FIG. 1 is a side view of a ship to which a wind-assisted propulsion system for ships according to one embodiment of the present invention is applied. FIG. 2 is a perspective view of a wind-assisted propulsion system for a ship according to one embodiment of the present invention. FIGS. 3 and 4 are cross-sectional views showing the configuration and operation of a wind-assisted propulsion system for a ship according to one embodiment of the present invention. The present invention will be described below with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification have been given similar reference numerals. Throughout the specification, when it is stated that a part is "connected (connected, in contact, combined)" with another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members interposed between them. Furthermore, when it is stated that a part "includes" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather allows for the inclusion of additional components. The terms used herein are merely for describing specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For exa