Downwash blocking device for air traffic

Abstract

The present invention relates to a downwash blocking device for air traffic, and the downwash blocking device is configured to install a multi-stage guide shell that blocks downwash and guides the downwash to a discharge part of a vertical takeoff and landing field onto a rotor guide of an aircraft for urban air traffic, so that it can move up and down, thus being able to prevent the downwash from affecting passengers during boarding and alighting, and thus being able to solve the inconvenience of passengers during boarding and alighting.

Description

Technical Field

[0001] The present invention relates to a downwash blocking device for air traffic, and more particularly, to a downwash blocking device for air traffic that can block the downwash generated during takeoff and landing of an aircraft for air traffic, and solve the inconvenience of passengers during boarding and alighting. Background Art

[0002] Future transportation and traffic systems for urban air mobility (UAM) are under development.

[0003] One of the most important things in the development of urban air mobility is to develop flying cars capable of vertical takeoff and landing and vertical takeoff and landing fields, that is, the takeoff and landing areas of flying cars.

[0004] Figure 1 is a schematic diagram showing an example of a flying car and a vertical takeoff and landing field for urban air mobility. Figure 1 The arrow denoted by 1000 in shows the downwash.

[0005] As Figure 1 shown, a flying car 100 for urban air mobility may include a main body portion 110 for passengers, wing portions 120 formed on opposite sides of the main body portion 110, rotor guides 130 mounted to the ends of each wing portion 120, and propeller-type rotors 140 rotatably mounted in the rotor guides 130 to generate a large amount of lift.

[0006] In addition, a vertical takeoff and landing field, which is a vertical takeoff and landing area of a flying car, can be manufactured to have various structures that facilitate takeoff and landing.

[0007] During takeoff and landing of the flying car 100 for urban air mobility, strong airflows generated due to the rotational force of the rotors 140 are blown toward the vertical takeoff and landing field 200. Such strong airflows are referred to as downwash (downward blowing airflows).

[0008] Therefore, during boarding and alighting, passengers experience inconvenience due to the downwash, which is a turbulent air.

[0009] The information disclosed in the background section of the present invention is only for enhancing the understanding of the general background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0010] Aspects of the present invention aim to provide a downwash blocking device for air traffic, which is configured such that a multi-stage guide shell configured to block downwash and guide the downwash to a discharge portion of a vertical takeoff and landing field is mounted to a rotor guide of an aircraft for urban air traffic, and can move up and down, thereby preventing the downwash from affecting passengers during boarding and disembarking, and thus solving the inconvenience of passengers during boarding and disembarking.

[0011] The object of the present invention is not limited to the above, and those of ordinary skill in the art (hereinafter referred to as "ordinary technicians") will clearly understand other unmentioned objects of the present invention from the following description.

[0012] To achieve this object, in one aspect, aspects of the present invention aim to provide a downwash blocking device for air traffic, the downwash blocking device comprising: a rotor guide, to which a rotor of an aircraft for air traffic is rotatably mounted; a plurality of guide shells, which are mounted to the rotor guide and are slidably coupled to each other, and are configured to be movable up and down relative to the rotor guide, the guide shells being configured to block downwash blowing from the rotor towards a vertical takeoff and landing field; and a driving device, which is mounted to the rotor guide and the guide shells and is coupled to the guide shells, the driving device being configured to move the guide shells up and down.

[0013] The rotor guide may be provided with a guide shell receiving space that is open in the downward direction, and may be provided with three or more driving device mounting spaces, which are spaced apart from the guide shell receiving space and protrude outward at equal intervals in the circumferential direction of the rotor guide.

[0014] The plurality of guide shells may be configured in a multi-stage structure in which at least three guide shells are slidably coupled to each other.

[0015] The plurality of guide shells may include: a first guide shell, which is connected to the rotor guide so as to be movable up and down; a second guide shell, which has a smaller diameter than the first guide shell; and a third guide shell, which has a smaller diameter than the second guide shell, the third guide shell being connected to the second guide shell and being movable up and down relative to the second guide shell by the operation of one of the driving devices.

[0016] A ground coupling member configured to be in airtight contact with the surface of the vertical takeoff and landing field may be mounted to the lower end portion of the third guide shell, which is at the lowest position among the plurality of guide shells.

[0017] The drive device may include: a first rotor, which is installed in each drive device installation space of the rotor guide; a first screw shaft, which is connected to the output shaft of the first motor and is arranged in the downward direction of the output shaft of the first motor; and a first up-down movement guide bracket, which has an internal thread portion, wherein the first screw shaft is threadedly engaged with the internal thread portion, and the first up-down movement guide bracket is installed on the upper end portion of the first guide housing among a plurality of guide housings so as to protrude outward from the axis of the rotor guide.

[0018] A first stopper may be installed on the lower end portion of the first screw shaft, and the first stopper is caught by the bottom portion of the first up-down movement guide bracket to limit the maximum downward movement distance of the first guide housing.

[0019] The drive device may further include: a first motor mounting bracket, which is installed on the upper end portion of the first guide housing among a plurality of guide housings so as to protrude inward; a second motor, which is installed on the first motor mounting bracket; a second screw shaft, which is connected to the output shaft of the second motor; and a second up-down movement guide bracket, which has an internal thread portion, wherein the second screw shaft is threadedly engaged with the internal thread portion, and the second up-down movement guide bracket is installed on the upper end portion of the second guide housing so as to protrude outward from the axis of the rotor guide.

[0020] A second stopper may be installed on the lower end portion of the second screw shaft, and the second stopper is selectively caught by the bottom portion of the second up-down movement guide bracket to limit the maximum downward movement distance of the second guide housing.

[0021] The drive device may further include: a second motor mounting bracket, which is installed on the upper end portion of the second guide housing so as to protrude inward; a third motor, which is installed on the second motor mounting bracket; a third screw shaft, which is rotatably connected to the output shaft of the third motor; and a third up-down movement guide bracket, which has an internal thread portion, wherein the third screw shaft is threadedly engaged with the internal thread portion, and the third up-down movement guide bracket is installed on the upper end portion of the third guide housing so as to protrude outward from the axis of the rotor guide.

[0022] A third stopper may be installed on the lower end portion of the third screw shaft, and the third stopper is caught by the bottom portion of the third up-down movement guide bracket to limit the maximum downward movement distance of the third guide housing.

[0023] The downwash blocking device may further include: a distance sensor mounted at a predetermined position on a lower portion of the rotor guide, the distance sensor being configured to detect the distance from the surface of the vertical takeoff and landing field; and a controller configured to apply a driving signal to the driving device when the distance detected by the distance sensor is less than the vertical length of the plurality of guide shells after the plurality of guide shells are deployed.

[0024] When, according to the driving signal of the controller, the plurality of guide shells are moved downward by the driving of the driving device to be deployed, the downwash flow blown from the rotor to the vertical takeoff and landing field during takeoff and landing of the aircraft can be guided to the plurality of guide shells.

[0025] After the plurality of guide shells are deployed, the controller may apply a recovery driving signal to the driving device so that the deployed length of each guide shell decreases in proportion to the distance detected by the distance sensor until the aircraft lands on the vertical takeoff and landing field.

[0026] The vertical takeoff and landing field may be provided with a downwash discharge port configured to discharge the downwash blown from the rotor into the guide shell.

[0027] Other aspects and exemplary embodiments of the present invention are discussed below.

[0028] The method and apparatus of the present invention have other features and advantages that will become apparent in or will be more particularly set forth in the accompanying drawings, which are incorporated herein and the following detailed description together serve to explain certain principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic view showing the generation of downwash when an aircraft for conventional air traffic takes off from and lands on a vertical takeoff and landing field;

[0030] Figure 2 is an exploded perspective view of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention;

[0031] Figure 3 is a cross-sectional view of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention, showing the state of the guide shell before deployment;

[0032] Figure 4 is a cross-sectional view of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention, showing the state of the guide shell after deployment;

[0033] Figure 5 、 Figure 6 and Figure 7is a schematic diagram showing the operation of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention in sequence;

[0034] Figure 8 is a control schematic diagram of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention; and

[0035] Figure 9 is a flowchart showing the operation of a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention.

[0036] It can be understood that the drawings are not necessarily drawn to scale and present a slightly simplified representation of various exemplary features illustrating the basic principles of the present invention. Specific design features of the present invention as included herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the specific intended application and use environment.

[0037] In the drawings, in several views of the drawings, reference numerals refer to the same or equivalent parts of the present invention. Detailed Description of the Invention

[0038] Reference will now be made in detail to various embodiments of the present invention, which are illustrated in the accompanying drawings and described below. While the present invention will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the present invention to those exemplary embodiments. On the contrary, the present invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments, which may be included within the spirit and scope of the present invention as defined by the appended claims.

[0039] It can be understood that the drawings are not necessarily drawn to scale and present a slightly simplified representation of various features illustrating the basic principles of the present invention. Specific design features of the present invention as included herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the specific intended application and use environment.

[0040] In the drawings, in several views of the drawings, reference numerals refer to the same or equivalent parts of the present invention.

[0041] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

[0042] Figure 2 is an exploded perspective view showing a downwash blocking device for air traffic according to multiple exemplary embodiments of the present invention, and Figure 3 and Figure 4 is a cross-sectional view showing the states of a guide housing before and after deployment respectively according to multiple exemplary embodiments of the present invention, where reference numeral 130 denotes a rotor guide.

[0043] A propeller-type rotor configured to generate a large amount of lift during takeoff and landing of an aircraft for air traffic is rotatably mounted in an inner diameter portion of a rotor guide 130.

[0044] As Figure 2 shown, a guide housing receiving space 132 that is open in its downward direction is defined in the rotor guide 130, and the guide housing receiving space 132 is formed as a space having an annular cross section such that a plurality of cylindrical guide housings are received therein in a state of overlapping each other.

[0045] A plurality of guide housings 150 are disposed in the guide housing receiving space 132 of the rotor guide 130 in a state of overlapping each other so as to be movable upward and downward. When the guide housing 150 is moved downward to deploy while forming a long cylinder extending upward and downward, it performs a function of blocking the downwash blowing from the rotor toward the vertical takeoff and landing field.

[0046] To this end, the plurality of guide housings 150 are configured in a multi-stage structure in which at least three guide housings are slidably coupled to each other.

[0047] The plurality of guide housings 150 include: a first guide housing 151 that is connected to the rotor guide 130 so as to be movable upward and downward; a second guide housing 152 having a smaller diameter than the first guide housing 151, the second guide housing 152 being connected to the first guide housing 151 so as to be movable upward and downward; and a third guide housing 153 having a smaller diameter than the second guide housing 152, the third guide housing 153 being connected to the second guide housing 152 so as to be movable upward and downward.

[0048] When the first guide housing 151, the second guide housing 152, and the third guide housing 153 are disposed in the guide housing receiving space 132 of the rotor guide housing 130 in a state of overlapping each other, the second guide housing 152 is located in an inner diameter portion of the first guide housing 151, and the third guide housing 153 is located in an inner diameter portion of the second guide housing 152, as Figure 3 shown.

[0049] A ground coupler 154 is installed at a lower end portion of the third guide housing 153, and the ground coupler 154 is an airtight member configured to be in airtight contact with the surface of the vertical takeoff and landing field 200, and the third guide housing 153 is located at the lowest position among the plurality of guide housings 150.

[0050] Meanwhile, a driving device configured to move the guide housing upward and downward is installed on the rotor guide 130 and the guide housing 150.

[0051] The drive device may have a structure configured to connect the first guide housing 151 to the rotor guide member 130 so as to be movable up and down, connect the second guide housing 152 to the first guide housing 151 so as to be movable up and down, and connect the third guide housing 153 to the second guide housing 152 so as to be movable up and down.

[0052] To this end, the rotor guide member 130 is further provided with three or more drive device mounting spaces 134, which are spaced apart from the guide housing receiving space 132 and protrude outward at equidistant intervals in the circumferential direction of the rotor guide member.

[0053] As a configuration of the drive device, a first motor 161 configured to move the first guide housing up and down is installed in each drive device mounting space 134 of the rotor guide member 130, and a first screw shaft 162 is rotatably connected to the output shaft of the first motor 161. These elements are arranged in their up-down direction.

[0054] In addition, a first up-down movement guide bracket 151-1 having an internal thread portion is installed at the upper end portion of the first guide housing 151 among the plurality of guide housings 150 so as to protrude outward, and the first screw shaft 162 is threadedly engaged with the internal thread portion.

[0055] A first stopper 163 is installed at the lower end portion of the first screw shaft 162, and the first stopper 163 is caught by the bottom portion of the first up-down movement guide bracket 151-1 to limit the maximum downward movement distance of the first guide housing 151 and prevent its separation.

[0056] As another configuration of the drive device, a first motor mounting bracket 151-2 is installed at the upper end portion of the first guide housing 151 so as to protrude inward, a second motor 164 is installed on the first motor mounting bracket 151-2, and a second screw shaft 165 is rotatably connected to the output shaft of the second motor 164. These elements are arranged in their up-down direction.

[0057] In addition, a second up-down movement guide bracket 152-1 having an internal thread portion is installed at the upper end portion of the second guide housing 152 so as to protrude outward, and the second screw shaft 165 is threadedly engaged with the internal thread portion.

[0058] A second stopper 166 is installed at the lower end portion of the second screw shaft 165, and the second stopper 166 is caught by the bottom portion of the second up-down movement guide bracket 152-1 to limit the maximum downward movement distance of the second guide housing 152 and prevent its separation.

[0059] As a further configuration of the driving device, the second motor mounting bracket 152-2 is mounted to the upper end portion of the second guide housing 152 to project inwardly, the third motor 167 is mounted to the second motor mounting bracket 152-2, and the third screw shaft 168 is rotatably connected to the output shaft of the third motor 167. These elements are arranged in their up-and-down directions.

[0060] In addition, a third up-and-down movement guide bracket 153-1 having an internal thread portion is mounted to the upper end portion of the third guide housing 153 to project outwardly, and the third screw shaft 168 is threadedly engaged with the internal thread portion.

[0061] A third stopper 169 is mounted to the lower end portion of the third screw shaft 168, and the third stopper 169 is caught by the bottom portion of the third up-and-down movement guide bracket 153-1 to limit the maximum downward movement distance of the third guide housing 153 and prevent its separation.

[0062] As Figure 8 shown, the downwash blocking device according to multiple exemplary embodiments of the present invention further includes: a distance sensor 170 that is mounted to a predetermined position on the lower portion of the rotor guide 130 to detect the distance from the surface of the vertical takeoff and landing field; and a controller 180 that is configured to apply a drive signal to each of the motors 161, 164, and 167 of the driving device when the distance detected by the distance sensor 160 is less than the vertical length of the plurality of guide housings 150 after being fully deployed.

[0063] When the motors 161, 164, and 167 of the driving device are driven and thus the plurality of guide housings 150 are moved downward to be deployed, the downwash flow blown from the rotor 140 to the vertical takeoff and landing field 200 during takeoff and landing of the aircraft can be guided into the guide housings 150.

[0064] When the first screw shaft 162 rotates according to the unidirectional rotation of the first motor 161, the first guide housing 151 is moved downward because the first screw shaft 162 is threadedly engaged with the first up-and-down movement guide bracket 151-1 formed at the first guide housing 151.

[0065] Meanwhile, when the second screw shaft 165 rotates according to the unidirectional rotation of the second motor 164, the second guide housing 152 is moved downward because the second screw shaft 165 is threadedly engaged with the second up-and-down movement guide bracket 152-1 formed at the second guide housing 152.

[0066] In addition, when the third screw shaft 168 rotates according to the one-way rotation of the third motor 167, the third guide housing 153 is moved downward because the third screw shaft 168 is threadedly engaged with the third up-and-down movement guide bracket 153-1 formed at the third guide housing 153.

[0067] At this time, the ground coupler 154 installed at the lower end portion of the third guide housing 153 makes airtight contact with the surface of the vertical takeoff and landing field 200.

[0068] When the first guide housing 151, the second guide housing 152, and the third guide housing 153 are moved downward and deployed as described above, the first guide housing 151, the second guide housing 152, and the third guide housing 153 are vertically arranged between the rotor 140 and the vertical takeoff and landing field 200, as Figure 6 shown.

[0069] A downwash discharge port 202 configured to discharge the downwash blown from the rotor 140 into the guide housing 150 is formed in the vertical takeoff and landing field 200, and the ground coupler 154 makes close contact with the outer circumferential surface of the downwash discharge port 202.

[0070] Therefore, the downwash blown from the rotor passes through the interiors of the first guide housing 151, the second guide housing 152, and the third guide housing 153 deployed as described above, and is discharged through the downwash discharge port 202, whereby passengers are not affected by the downwash during boarding and alighting, and thus the convenience of passengers during boarding and alighting can be greatly improved.

[0071] Hereinafter, examples of takeoff and landing of an aircraft for air traffic and deployment of the guide housing will be described.

[0072] Figure 5 、 Figure 6 and Figure 7 are views sequentially showing the operation of the downwash blocking device for air traffic according to various exemplary examples of the present invention, and Figure 9 is a flowchart showing the operation of the downwash blocking device for air traffic according to various exemplary examples of the present invention.

[0073] First, when, as Figure 5 shown, the aircraft 100 is located above the vertical takeoff and landing field 200 for landing after flight, the distance sensor 170 detects the distance from the vertical takeoff and landing field 200 (S101), and the detected signal is sent to the controller 180. Figure 5 The arrow denoted by 2000 in Figure 6 and Figure 7 denotes the sensed distance.

[0074] Subsequently, the controller 180 compares the distance detected by the distance sensor 160 with the vertical length of the plurality of guide cases 150 when fully deployed (S102).

[0075] In the case where the result of the comparison is that the distance detected by the distance sensor 160 is less than the vertical length of the plurality of guide cases 150 when fully deployed, the deployment of the plurality of guide cases 150 is performed as described above (S103).

[0076] To this end, the controller 180 applies drive signals to the motors 161, 164, and 167, whereby as described above, the first motor 161 is driven and the first guide case 151 moves downward due to the rotation of the first screw shaft 162, the second motor 164 is driven and the second guide case 152 moves downward due to the rotation of the second screw shaft 165, and the third motor 167 is driven and the third guide case 153 moves downward due to the third screw shaft 168. Thus, as Figure 6 shown, the first guide case 151, the second guide case 152, and the third guide case 153 are vertically arranged while being connected to the rotor 140 and the vertical takeoff and landing field 200.

[0077] Therefore, the downwash blown from the rotor 140 passes through the interiors of the first guide case 151, the second guide case 152, and the third guide case 153 deployed as described above and is discharged through the downwash discharge port 202 of the vertical takeoff and landing field 200, whereby no downwash reaches the passengers during boarding and alighting.

[0078] After fully deploying the plurality of guide cases 150, the aircraft 100 starts to move downward to land on the vertical takeoff and landing field 200.

[0079] When the aircraft 100 moves downward to land on the vertical takeoff and landing field 200, the vertical deployment lengths of the first guide case 151, the second guide case 152, and the third guide case 153 deployed as described above can be reduced to prevent damage thereto.

[0080] That is to say, the vertical deployment lengths of the first guide case 151, the second guide case 152, and the third guide case 153 can be proportionally reduced until the aircraft 100 lands on the vertical takeoff and landing field 200.

[0081] To this end, after the plurality of guide cases 150 are deployed, the controller 180 applies a recovery drive signal to the drive device so that the deployment length of each guide case 150 is reduced in proportion to the reduced distance detected by the distance sensor 170 until the aircraft 100 lands on the vertical takeoff and landing field 200.

[0082] In other words, when the distance sensor 170 detects that the distance to the vertical takeoff and landing pad 200 gradually decreases due to the downward movement of the aircraft 100 and sends it to the controller 180, the controller 180 applies a reverse drive signal to the first motor 161, the second motor 164, and the third motor 167, so that the extended length of each guide housing 150 decreases (S104).

[0083] When the aircraft 100 moves downward until it lands on the vertical takeoff and landing pad 200, the distance to the vertical takeoff and landing pad 200 detected by the distance sensor 170 is proportionally decreased, and thus the controller 180 can apply a reverse drive signal to the first motor 161, the second motor 164, and the third motor 167, so that the extended length of each guide housing 150 is proportionally decreased.

[0084] Therefore, even when the aircraft 100 lands on the vertical takeoff and landing pad 200, only the vertical extended lengths of the first guide housing 151, the second guide housing 152, and the third guide housing 153 are decreased, and the first guide housing 151, the second guide housing 152, and the third guide housing 153 are configured to continuously guide the downwash from the rotor 140 to the downwash discharge port 202 of the vertical takeoff and landing pad 200.

[0085] After the aircraft 100 lands on the vertical takeoff and landing pad 200, passengers can board and alight (S105).

[0086] At this time, the downwash blown from the rotor 140 through the first guide housing 151, the second guide housing 152, and the third guide housing 153 is continuously discharged through the downwash discharge port 202. Therefore, the downwash does not reach the passengers during boarding and alighting, thereby solving the inconvenience caused by the downwash during boarding and alighting of the passengers and improving the convenience during boarding and alighting of the passengers.

[0087] Meanwhile, when the aircraft 100 is ready to take off after boarding and alighting, the switch operation of the pilot or the wireless operation signal of the smart device can be sent to the controller 180, so that the guide housing 150 returns to its original position to overlap each other.

[0088] Accordingly, the controller 180 applies a reverse drive signal to the first motor 161, the second motor 164, and the third motor 167, so that the guide housing 150 is moved upward to be received in the guide housing receiving space 132 of the rotor guide 130 in an overlapping state (S106).

[0089] After the guide housing 150 is received in the guide housing receiving space 132 of the rotor guide 130 in an overlapping state as described above, the aircraft 100 can take off (S107).

[0090] As described above, the multi-stage guide housing is installed in the rotor guide of an aircraft for air traffic and can thus move up and down, such that the downwash blowing from the rotor towards the vertical takeoff and landing field during takeoff and landing of the aircraft is guided into the interior of the guide housing, thereby preventing the downwash from affecting passengers during boarding and alighting. Accordingly, the inconvenience caused by the downwash during passenger boarding and alighting can be solved, and the convenience of passengers during boarding and alighting can be improved, thereby enabling focus on future UAM hub standard technologies.

[0091] As is apparent from the foregoing, the present invention can have the following effects.

[0092] First, the multi-stage guide housing is installed in the rotor guide of an aircraft for air traffic and can thus move up and down, such that the downwash blowing from the rotor towards the vertical takeoff and landing field during takeoff and landing of the aircraft is guided into the interior of the guide housing, thereby preventing the downwash from affecting passengers during boarding and alighting. Accordingly, the inconvenience caused by the downwash during passenger boarding and alighting can be solved.

[0093] Second, the guide housing easily prevents the downwash from being blown onto the vertical takeoff and landing field and spreading outwards, thereby blocking the downwash (a turbulent air) from reaching passengers during boarding and alighting and improving the convenience of passengers during boarding and alighting, thereby enabling focus on future UAM hub standard technologies.

[0094] The effects of the present invention are not limited to those mentioned above, and those of ordinary skill in the art will clearly understand other unmentioned effects from the above description.

[0095] In addition, terms related to a control device such as “controller,” “control unit,” “control device,” or “control module” refer to a hardware device including a memory and a processor, which is configured to execute one or more steps interpreted as an algorithmic structure. The memory stores the algorithm steps, and the processor executes the algorithm steps to perform one or more processes of the method according to multiple exemplary embodiments of the present invention. The control device according to an exemplary embodiment of the present invention can be implemented by a non-volatile memory and a processor, the non-volatile memory being configured to store an algorithm for controlling the operation of various components of a vehicle or data regarding software commands for executing the algorithm, the processor being configured to perform the operations described above using the data stored in the memory. The memory and the processor can be separate chips. Alternatively, the memory and the processor can be integrated in a single chip. The processor can be implemented as one or more processors. The processor can include various logic circuits and arithmetic circuits, can process data according to a program provided from the memory, and can generate a control signal according to the processing result.

[0096] The control device may be at least one microprocessor operated by a predetermined program, which may include a series of commands for implementing the methods in the above-described multiple exemplary embodiments of the present invention.

[0097] The above invention may also be embodied as computer-readable code on a computer-readable recording medium. A computer-readable recording medium is any data storage device that can store data that can be subsequently read by a computer system. Examples of computer-readable recording media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), read-only memories (ROMs), random access memories (RAMs), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, etc., as well as implementations as carrier waves (e.g., transmission via the Internet).

[0098] In multiple exemplary embodiments of the present invention, each of the above operations may be performed by a control device, and the control device may be configured by multiple control devices or an integrated single control device.

[0099] In multiple exemplary embodiments of the present invention, the control device may be implemented in the form of hardware or software, or may be implemented in a combination of hardware and software.

[0100] For the sake of easy explanation and accurate definition of the appended claims, the terms "upper", "lower", "inner", "up", "down", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "inner", "outer", "internal", "external", "front" and "rear" are used to describe the features of the exemplary embodiments with reference to the positions of these features shown in the figures. It will be further understood that the term "connected" or its derivatives refer to both direct connection and indirect connection.

[0101] Furthermore, the term "fixed connection" means that the members in a fixed connection always rotate at the same speed. In addition, the term "selectively connectable" means that "when the selectively connectable members are not engaged with each other, they rotate separately, when the selectively connectable members are engaged with each other, they rotate at the same speed, and when at least one of the selectively connectable members is a stationary member and holds the selectively connectable members engaged to the stationary member, the remaining selectively connectable members are also stationary".

[0102] The foregoing description of the specific exemplary embodiments of the present invention has been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable others skilled in the art to make and utilize the invention in its various exemplary embodiments, as well as its various alternatives and modifications. The scope of the invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A downwash blocking device for air traffic, the downwash blocking device comprising: A rotor guide member to which a rotor of an aircraft for the air traffic is rotatably mounted; A plurality of guide shells mounted to the rotor guide member to be slidably coupled to each other and configured to move up and down relative to the rotor guide member, the plurality of guide shells being configured to block downwash blown from the rotor towards a vertical takeoff and landing field; And A driving device mounted to the rotor guide member and the plurality of guide shells and coupled to the plurality of guide shells, the driving device being configured to move the plurality of guide shells up and down relative to the rotor guide member.

2. The downwash blocking device according to claim 1, wherein, The rotor guide member is provided with a guide shell receiving space that opens in a downward direction of the rotor guide member.

3. The downwash blocking device according to claim 2, wherein, The rotor guide member is provided with three or more driving device mounting spaces spaced apart from the guide shell receiving space and protruding outward at equal intervals in a circumferential direction of the rotor guide member.

4. The downwash blocking device according to claim 1, wherein, The plurality of guide shells are telescopically coupled to each other and slidable relative to each other.

5. The downwash blocking device according to claim 4, wherein The plurality of guide shells include: A first guide shell connected to the rotor guide member and configured to move up and down relative to the rotor guide member by operation of one of the driving devices; A second guide shell having a smaller diameter than the first guide shell, the second guide shell being connected to the first guide shell and configured to move up and down relative to the first guide shell by operation of one of the driving devices; and A third guide shell having a smaller diameter than the second guide shell, the third guide shell being connected to the second guide shell and configured to move up and down relative to the second guide shell by operation of one of the driving devices.

6. The downwash blocking device according to claim 5, wherein, A ground coupling member configured to be in airtight contact with a surface of the vertical takeoff and landing field is mounted to a lower end portion of the third guide shell, the third guide shell being at a lowest position among the plurality of guide shells.

7. The downwash blocking device according to claim 1, wherein, A ground coupling member configured to be in airtight contact with a surface of the vertical takeoff and landing field is mounted to a lower end portion of a guide shell that is at a lowest position among the plurality of guide shells.

8. The downwash blocking device according to claim 1, wherein, The driving device includes a first driving device having: A first motor mounted to the rotor guide member; A first screw shaft connected to an output shaft of the first motor; A first up and down movement guide bracket having an internal thread portion with which the first screw shaft is threadedly engaged, the first up and down movement guide bracket being mounted to an upper end portion of a guide shell that is at a highest position among the plurality of guide shells; and A stopper mounted to a lower end portion of the first screw shaft and selectively caught by a bottom portion of the first up and down movement guide bracket to limit a maximum downward movement distance of the guide shell at the highest position among the plurality of guide shells.

9. The downwash blocking device according to claim 8, Among them, The driving device further includes at least one second driving device, and Wherein each of the at least one second driving devices includes: A second motor mounting bracket is mounted to the upper end portion of one of the plurality of guide cases except for the guide case located at the highest position. A second motor is mounted to a first motor mounting bracket of one of the at least one second driving device. A second screw shaft is connected to the output shaft of the second motor. A second up-and-down movement guide bracket has an internal threaded portion, wherein the second screw shaft is threadedly engaged with the internal threaded portion, and the second up-and-down movement guide bracket is mounted to the upper end portion of another one of the plurality of guide cases. A second stopper is mounted to the lower end portion of the second screw shaft and is selectively caught by the bottom portion of the second up-and-down movement guide bracket.

10. The downwash blocking device according to claim 1, wherein, The driving device includes: A first motor mounted in each driving device mounting space of the rotor guide. A first screw shaft is connected to the output shaft of the first motor, and the first screw shaft is arranged in the downward direction of the output shaft of the first motor. A first up-and-down movement guide bracket has an internal threaded portion, wherein the first screw shaft is threadedly engaged with the internal threaded portion, and the first up-and-down movement guide bracket is mounted to the upper end portion of the first guide case of the plurality of guide cases to protrude outward from the axis of the rotor guide.

11. The downwash blocking device according to claim 10, wherein, A first stopper is mounted to the lower end portion of the first screw shaft, and the first stopper is caught by the bottom portion of the first up-and-down movement guide bracket to limit the maximum downward movement distance of the first guide case.

12. The downwash blocking device according to claim 10, wherein, The driving device further includes: A first motor mounting bracket is mounted to the upper end portion of the first guide case of the plurality of guide cases to protrude into the rotor guide. A second motor is mounted to the first motor mounting bracket. A second screw shaft is connected to the output shaft of the second motor. A second up-and-down movement guide bracket has an internal threaded portion, wherein the second screw shaft is threadedly engaged with the internal threaded portion, and the second up-and-down movement guide bracket is mounted to the upper end portion of the second guide case of the plurality of guide cases to protrude outward from the axis of the rotor guide.

13. The downwash blocking device according to claim 12, wherein, A second stopper is mounted to the lower end portion of the second screw shaft, and the second stopper is selectively caught by the bottom portion of the second up-and-down movement guide bracket to limit the maximum downward movement distance of the second guide case.

14. The downwash blocking device according to claim 12, wherein, The driving device further includes: A second motor mounting bracket is mounted to the upper end portion of the second guide case to protrude into the rotor guide. A third motor is mounted to the second motor mounting bracket. A third screw shaft is rotatably connected to the output shaft of the third motor. A third up-and-down movement guide bracket has an internal threaded portion, wherein the third screw shaft is threadedly engaged with the internal threaded portion, and the third up-and-down movement guide bracket is mounted to the upper end portion of the third guide case of the plurality of guide cases to protrude outward from the axis of the rotor guide.

15. The downwash blocking device according to claim 14, wherein, The third stopper is installed at the lower end portion of the third screw shaft, and the third stopper is caught by the bottom portion of the third upward and downward movement guiding bracket to limit the maximum downward movement distance of the third guiding housing.

16. The downwash blocking device according to claim 1, wherein the downwash blocking device further comprises: a distance sensor installed at a predetermined position on the lower portion of the rotor guide, the distance sensor being configured to detect the distance from the surface of the vertical takeoff and landing field to the distance sensor; and a controller electrically connected to the driving device and the distance sensor and configured to apply a driving signal to the driving device when the distance detected by the distance sensor is less than the vertical length after the plurality of guiding housings are deployed.

17. The downwash blocking device according to claim 16, wherein, When, according to the driving signal of the controller, the plurality of guiding housings are moved downward by the driving of the driving device to be deployed, the downwash flow blown from the rotor to the vertical takeoff and landing field during takeoff and landing of the aircraft is guided to the plurality of guiding housings.

18. The downwash blocking device according to claim 17, wherein, After the plurality of guiding housings are deployed, the controller is configured to apply a recovery driving signal to the driving device such that the deployed length of each guiding housing is proportionally reduced according to the distance detected by the distance sensor until the aircraft lands on the vertical takeoff and landing field.

19. The downwash blocking device according to claim 1, wherein, The vertical takeoff and landing field is provided with a downwash discharge port configured to discharge the downwash blown from the rotor in the plurality of guiding housings into the downwash discharge port.

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