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CN-121990160-A - Three-duct tilting electric vertical take-off and landing aircraft with triangular layout

CN121990160ACN 121990160 ACN121990160 ACN 121990160ACN-121990160-A

Abstract

The invention discloses a three-duct tilting electric vertical take-off and landing aircraft with a triangular layout, which comprises a fuselage, wherein the fuselage is in a streamline design, an integrated electric duct fan fused with the fuselage is arranged at the rear part of the fuselage, duct sealing devices are arranged at the inlet and outlet of the integrated electric duct fan, left and right wings are arranged at the two sides of the fuselage, the middle parts of the left and right wings are respectively provided with the left and right tilting electric duct fans, the three electric duct fans are arranged in a triangular space, the tail part of the fuselage is provided with a horizontal tail and a vertical tail, the horizontal tail and the vertical tail are arranged in an integrated cross-shaped tail wing, wing control surfaces are arranged at the rear edges of the left and right wings, the rear edges of the horizontal tail are provided with the horizontal tail control surfaces, and the rear edges of the vertical tail are provided with the vertical tail control surfaces. The aircraft adopts the combined layout of the double-tilting duct and the single-fixing fusion duct, and realizes high stability of vertical take-off and landing, moment self-balancing in a transition stage and high pneumatic efficiency in a cruising stage.

Inventors

  • LONG YAOSONG

Assignees

  • 新域(太仓)动力科技有限公司

Dates

Publication Date
20260508
Application Date
20260226

Claims (10)

  1. 1. The three-duct tilting electric vertical take-off and landing aircraft with the triangular layout is characterized by comprising a fuselage (1), wherein the fuselage (1) is in streamline design, an integrated electric duct fan (2) integrated with the fuselage is arranged at the rear part of the fuselage, duct sealing devices (12) are arranged at the inlet and outlet of the integrated electric duct fan (2), left and right wings (3 and 4) are arranged on two sides of the fuselage (1), and left and right tilting electric duct fans (6 and 7) are respectively arranged in the middle of the left and right wings (3 and 4), and the three electric duct fans (2, 6 and 7) are arranged in a triangular space.
  2. 2. The three-duct tilting electric vertical takeoff and landing aircraft with triangular layout according to claim 1, characterized in that the left and right side tilting electric duct fans (6, 7) further comprise a tilting mechanism comprising a rotating shaft and a driving device which are arranged transversely, and the left and right side tilting electric duct fans (6, 7) are mounted in the mounting space of the left and right wings (3, 4) through the rotating shaft.
  3. 3. Three-duct tilting electric vertical takeoff and landing aircraft according to claim 1, characterized in that said left and right side tilting electric ducted fans (6, 7) are configured to rotate around a transversal axis in the range of 0 ° to 90 °.
  4. 4. The three-duct tilting electric vertical take-off and landing aircraft with the triangular layout according to claim 1, wherein the left wing (3) and the right wing (4) adopt a medium aspect ratio structure, and the left tilting electric duct fans (6 and 7) and the right tilting electric duct fans are installed at the main beam positions and are connected through reinforcing nodes.
  5. 5. Three-duct tilting electric vertical takeoff and landing aircraft with delta arrangement according to claim 1, characterized in that three of said electric ducted fans (2, 6, 7) are driven by independent motors.
  6. 6. The three-duct tilting electric vertical take-off and landing aircraft with the triangular layout according to claim 1, wherein the tail of the fuselage (1) is provided with a horizontal tail (8) and a vertical tail (9), and the horizontal tail (8) and the vertical tail (9) are arranged in an integrated cross tail.
  7. 7. The three-duct tilting electric vertical take-off and landing aircraft with the triangular layout according to claim 6, wherein the rear edges of the left wing (3) and the right wing (4) are respectively provided with a wing control surface (5), the rear edge of the horizontal tail (8) is provided with a horizontal tail control surface (10), and the rear edge of the vertical tail (9) is provided with a vertical tail control surface (11).
  8. 8. Three-duct tilting electric vertical takeoff and landing aircraft with triangular layout according to claim 1, characterized in that landing gear (13) is arranged under the fuselage (1).
  9. 9. The three duct tilting electric vertical takeoff and landing aircraft of delta configuration according to claim 6, characterized in that said aircraft has four flight modes: In the vertical take-off and landing mode, the duct sealing device (12) is opened, and the three electric duct fans (2, 6 and 7) are in a vertical state and work together to provide all vertical lifting force for the aircraft and control the gesture through differential rotation speed; A hover mode in which attitude control is achieved by adjusting thrust differences of the three electric ducted fans (2, 6, 7) respectively; The transition mode is that the left and right side tilting electric ducted fans (6, 7) tilt to a horizontal state gradually, in the process, the integrated electric ducted fan (2) continuously works and adjusts thrust to balance low head moment generated by tilting of the left and right side tilting electric ducted fans (6, 7) until wing aerodynamic lift is completely established, in the process of establishing wing aerodynamic lift, the rotating speed of the integrated electric ducted fan (2) is gradually reduced, and the ducted closing device (12) is gradually closed; And in a forward flight mode, after the air speed reaches a preset threshold value, the integrated electric ducted fan (2) stops working, the ducted closing device (12) is completely closed, the left and right tiltable electric ducted fans (6, 7) are locked at a horizontal position to only provide cruising thrust, and the lifting force of the aircraft is completely provided by the left and right wings (3, 4), the horizontal tail (8) and the vertical tail (9).
  10. 10. The three-duct tilting electric vertical take-off and landing aircraft with the triangular layout according to claim 1, wherein the duct closing device (12) is of a push-out baffle structure, and in a closed state, the outer surface of the duct closing device (12) is flush with the skin surface of the fuselage (1) to form a smooth pneumatic transition surface.

Description

Three-duct tilting electric vertical take-off and landing aircraft with triangular layout Technical Field The invention relates to the technical field of aerospace and aircraft design, in particular to a three-duct tilting electric vertical take-off and landing aircraft with a triangular layout. Background In recent years, with the development of electric propulsion and lightweight composite materials, vertical take-off and landing aircraft (VTOL) has become a hotspot for aviation engineering research. The conventional eVTOL aircraft is mainly divided into two types, namely a multi-rotation wing type aircraft with good vertical take-off and landing capability and lower forward flight efficiency, and another type is a tilting rotation wing type aircraft or tilting duct type aircraft which can take off and land vertically and fly horizontally, but has a complex structure and obvious aerodynamic interference. The conventional tilting configuration generally adopts an open propeller, and has the problems of large tip vortex interference, high noise and thrust loss in a forward flight state. The ducted fan is provided with the annular duct outside the propeller, so that the thrust efficiency can be remarkably improved, the noise can be reduced, and the safety can be improved. However, the existing ducted fans are arranged symmetrically in a tilting mode, so that unbalanced pitching moment is easy to occur during vertical lifting, and meanwhile, in a forward flying mode, the non-working ducts generate additional resistance, so that the overall aerodynamic efficiency is reduced. Therefore, on the premise of ensuring the vertical take-off and landing capability, the method improves the aerodynamic shape in the forward flight state, reduces the resistance and improves the stability, and becomes a key technical problem in the design of the tilting duct aircraft. Disclosure of Invention The invention provides a three-duct tilting electric vertical take-off and landing aircraft with a triangular layout, which aims to solve the problems of high resistance, complex transitional flight control, low thrust redundancy and the like of the conventional vertical take-off and landing aircraft in a cruising stage. The aircraft adopts the combined layout of the double-tilting duct and the single-fixing fusion duct, and realizes high stability of vertical take-off and landing, moment self-balancing in a transition stage and high pneumatic efficiency in a cruising stage. The technical scheme for solving the problems is as follows: The application provides a three-duct tilting electric vertical take-off and landing aircraft with a triangular layout, which comprises a fuselage, wherein the fuselage is in streamline design, an integrated electric duct fan integrated with the fuselage is arranged at the rear part of the fuselage, duct sealing devices are arranged at the inlet and outlet of the integrated electric duct fan, left and right wings are arranged on two sides of the fuselage, tilting electric duct fans on the left and right sides are respectively arranged in the middle of the left and right wings, and the three electric duct fans are arranged in a triangular space. In an optional mode, the left-right side tilting electric ducted fan further comprises a tilting mechanism, the tilting mechanism comprises a rotating shaft and a driving device which are transversely arranged, and the left-right side tilting electric ducted fan is installed in the installation space of the left wing and the right wing through the rotating shaft. In an alternative, the left and right tiltable electric ducted fans are configured to rotate about a transverse axis in the range of 0 ° to 90 °. In an alternative mode, the left wing and the right wing adopt a medium aspect ratio structure, and the left tilting electric ducted fan and the right tilting electric ducted fan are arranged at the main beam position and are connected through reinforcing nodes. In an alternative, three of the electric ducted fans are each driven by an independent motor. In an alternative mode, the tail of the fuselage is provided with a horizontal tail and a vertical tail, and the horizontal tail and the vertical tail are arranged in an integrated cross tail wing. In an optional mode, the rear edges of the left wing and the right wing are respectively provided with a wing control surface, the rear edge of the horizontal tail is provided with a horizontal tail control surface, and the rear edge of the vertical tail is provided with a vertical tail control surface. In an alternative, landing gear is provided below the fuselage. In an alternative, the aircraft is provided with four modes of flight: In a vertical take-off and landing mode, the duct sealing device is opened, and the three electric duct fans are in a vertical state and work together to provide all vertical lift force for the aircraft and control the gesture through a differential rotation speed; A hovering mode, where