WO2023062691A1 - 飛行体 - Google Patents

飛行体 Download PDF

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Publication number
WO2023062691A1
WO2023062691A1 PCT/JP2021/037597 JP2021037597W WO2023062691A1 WO 2023062691 A1 WO2023062691 A1 WO 2023062691A1 JP 2021037597 W JP2021037597 W JP 2021037597W WO 2023062691 A1 WO2023062691 A1 WO 2023062691A1
Authority
WO
WIPO (PCT)
Prior art keywords
aircraft
propeller
multicopter
support column
propellers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/037597
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
誠 野村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankyo Mokko Co Ltd
Original Assignee
Sankyo Mokko Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sankyo Mokko Co Ltd filed Critical Sankyo Mokko Co Ltd
Priority to JP2023553767A priority Critical patent/JPWO2023062691A1/ja
Priority to PCT/JP2021/037597 priority patent/WO2023062691A1/ja
Publication of WO2023062691A1 publication Critical patent/WO2023062691A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B64C27/26—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft characterised by provision of fixed wings

Definitions

  • the technology of the present disclosure relates to flying objects.
  • Japanese Patent Application Laid-Open No. 2020-100396 discloses an aircraft provided with four or more ascending/forward propellers and fixed wings for horizontal flight on the front, back, left, and right of the aircraft.
  • the technology of the present disclosure aims to provide a flying object capable of suppressing the decrease in lift force due to eddy currents.
  • an aircraft includes a pair of fixed wings provided on the left and right sides of a main body, and provided at the tip of each of the pair of fixed wings, the main body a mounting portion having a side surface facing away from the mounting portion; a front support column provided on the front side of the mounting portion in the direction of travel of the aircraft; and a rear side provided on the rear side of the mounting portion in the direction of travel of the aircraft.
  • a support column an aircraft propeller attached to the tip of the front support column that generates a propulsive force for flying the aircraft as an aircraft, and an aircraft motor that rotates the aircraft propeller;
  • Propulsion for flying the aircraft as a multicopter which is attached to each of the rear lower side or upper side of the rear side support column and the tip of an extension support column extending upward or downward from the front side of the front side support column.
  • An aircraft comprising: a multicopter propeller that generates lift in a direction that intersects the direction of force; and a multicopter motor that rotates the multicopter propeller, wherein the aircraft motor rotates the aircraft propeller to: The aircraft propeller is rotated so that the air passing through the propeller flows in a direction that suppresses a vortex generated by a pressure difference between the upper side and the lower side of the fixed wing.
  • the multicopter motor attached to the tip of the extension support column rotates the multicopter propeller when the aircraft motor rotates the aircraft propeller.
  • the propeller is rotated so that the air that has passed through the propeller flows in a direction that suppresses the vortex.
  • a first aspect of the technology of the present disclosure can suppress a decrease in lift force due to vortex currents.
  • the second aspect of the technology of the present disclosure can further suppress the reduction in lift force due to vortex currents.
  • FIG. 1 is an overall perspective view showing the configuration of an unmanned air vehicle 10;
  • FIG. 2 is a front view of the unmanned air vehicle 10 as seen from the front side in the traveling direction;
  • FIG. 1 shows a vortex called the tip of a fixed wing of an airplane;
  • the unmanned flying object 10 has a configuration for flying as an aircraft and a configuration for flying as a four-propeller multicopter.
  • the number of propellers is not limited to four, and may be, for example, three, five, six, seven, eight, or the like.
  • the configuration of the unmanned air vehicle 10 as an aircraft includes a pair of fixed wings 14L, 14R provided on the left and right sides of the main body 12, and a pair of fixed wings 14L, 14R provided at the tip of each of the fixed wings 14L, 14R.
  • the configuration of the propeller of the unmanned aircraft 10 as a multicopter includes a multicopter propeller 20L provided below (or above) the tip end of each of the rear support columns 16L2 and 16R2 provided on the rear side of the mounting portions 16L1 and 16R1. , 20R and the front side support columns 16L3 and 16R3 provided on the front side of the mounting portions 16L1 and 16R1. 24R and multicopter motors 18L, 18R, 22L and 22R for rotating these multicopter propellers 20L, 20R, 24L and 24R.
  • FIG. 2 shows a diagram of the unmanned air vehicle 10 viewed from the front in the traveling direction.
  • FIG. 3 shows a pair of conventional fixed wings 14L and 14R, which are not provided with square pole-shaped mounting portions 16L1 and 16R1 at their tips, viewed from the front side in the traveling direction.
  • a vortex flow is generated in a direction A from the lower side to the upper side due to the pressure difference between the upper side and the lower side of the fixed blades 14L, 14R.
  • a counterclockwise vortex flow is generated around the tip of the left fixed blade 14L, and a clockwise vortex flow is produced around the tip of the right fixed blade 14R.
  • the aircraft motors 26L and 26R rotate the aircraft propellers 28L and 28R in order to generate propulsive force, and the direction ( -A) is rotated so as to flow.
  • the air passing through the aircraft propeller 28L flows clockwise, and the air passing through the aircraft propeller 28R flows counterclockwise.
  • the clockwise airflow that has passed through the aircraft propeller 28L suppresses the counterclockwise swirl around the tip of the left fixed wing 14L.
  • the counterclockwise airflow that has passed through the aircraft propeller 28R suppresses the clockwise vortex flow around the tip of the right fixed wing 14R. Therefore, in this embodiment, eddy currents can be suppressed.
  • the mounting portions 16L1 and 16R1 in the shape of a quadrangular prism are provided at the tips of the pair of fixed wings 14L and 14R, respectively, so eddy currents can be suppressed in this respect as well.
  • the multicopter motors 22L and 22R attached to the ends of the extension support columns 16L4 and 16R4 are designed to rotate the aircraft propellers 28L and 28R.
  • the propellers 24L and 24R are rotated so that the air flows in a direction (specifically, downward) that suppresses the swirl. Therefore, eddy currents can be suppressed in this respect as well.
  • the downward airflow from the multicopter propeller 24L suppresses the counterclockwise vortex around the tip of the left fixed wing 14L.
  • the downward airflow from the multicopter propeller 24R suppresses the clockwise swirl around the tip of the right fixed wing 14R.
  • the vortex can be suppressed, and the angle of attack of the unmanned flying object 10 is increased.
  • an unmanned flying object was taken as an example, but the technology of the present disclosure is not limited to this, and a manned flying object may be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Toys (AREA)
PCT/JP2021/037597 2021-10-11 2021-10-11 飛行体 Ceased WO2023062691A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2023553767A JPWO2023062691A1 (https=) 2021-10-11 2021-10-11
PCT/JP2021/037597 WO2023062691A1 (ja) 2021-10-11 2021-10-11 飛行体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/037597 WO2023062691A1 (ja) 2021-10-11 2021-10-11 飛行体

Publications (1)

Publication Number Publication Date
WO2023062691A1 true WO2023062691A1 (ja) 2023-04-20

Family

ID=85988190

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/037597 Ceased WO2023062691A1 (ja) 2021-10-11 2021-10-11 飛行体

Country Status (2)

Country Link
JP (1) JPWO2023062691A1 (https=)
WO (1) WO2023062691A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300013350A1 (it) 2023-06-28 2024-12-28 Flyrotor S R L Multicottero ibrido per il trasporto di persone e merci

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190337612A1 (en) * 2018-05-03 2019-11-07 Carter Aviation Technologies, Llc Compound Rotorcraft with Propeller
JP2021154802A (ja) * 2020-03-26 2021-10-07 エアロセンス株式会社 飛行体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190337612A1 (en) * 2018-05-03 2019-11-07 Carter Aviation Technologies, Llc Compound Rotorcraft with Propeller
JP2021154802A (ja) * 2020-03-26 2021-10-07 エアロセンス株式会社 飛行体

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300013350A1 (it) 2023-06-28 2024-12-28 Flyrotor S R L Multicottero ibrido per il trasporto di persone e merci

Also Published As

Publication number Publication date
JPWO2023062691A1 (https=) 2023-04-20

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