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1. WO2020118310 - ROTARY AIRFOIL AND DESIGN METHOD THEREFOR

Publication Number WO/2020/118310
Publication Date 11.06.2020
International Application No. PCT/US2019/065293
International Filing Date 09.12.2019
IPC
B64C 27/46 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
32Rotors
46Blades
B64C 11/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
02Hub construction
04Blade mountings
06for variable-pitch blades
B64C 11/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
B64C 11/18 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
18Aerodynamic features
B64C 11/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
20Constructional features
B64C 21/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
21Influencing air-flow over aircraft surfaces by affecting boundary-layer flow
10using other surface properties, e.g. roughness
CPC
B64C 11/06
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
02Hub construction
04Blade mountings
06for variable-pitch blades
B64C 11/16
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
B64C 11/18
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
18Aerodynamic features
B64C 11/20
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
11Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16Blades
20Constructional features
B64C 21/10
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
21Influencing air-flow over aircraft surfaces by affecting boundary-layer flow
10using other surface properties, e.g. roughness
B64C 27/46
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
27Rotorcraft; Rotors peculiar thereto
32Rotors
46Blades
Applicants
  • JOBY AERO, INC. [US]/[US]
Inventors
  • MIKIC, Gregory Veble
  • BEVIRT, JoeBen
  • BAIN, Jeremy
  • STOLL, Alex
Agents
  • SCHOX, Jeffrey
Priority Data
62/776,85307.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ROTARY AIRFOIL AND DESIGN METHOD THEREFOR
(FR) PROFIL AÉRODYNAMIQUE ROTATIF ET SON PROCÉDÉ DE CONCEPTION
Abstract
(EN)
The rotary airfoil (100) defines a cross section and a span, wherein the cross section is a function of the point along the span (e.g., span wise point) and defines an upper surface and a lower surface at each span wise point. The rotary airfoil (100) also defines, at a cross section, a lift coefficient (CL) that is a function of the angle of attack at which the airfoil is rotated through the air. The system can optionally include: a rotor hub to mount the rotary airfoil, a tilt mechanism to pivot the rotary airfoil between a forward configuration and a hover configuration, and a pitching mechanism to change the angle of attack of the rotary airfoil (100).
(FR)
Cette invention concerne un profil aérodynamique rotatif (100) qui définit une section transversale et une envergure, la section transversale étant une fonction du point le long de l'envergure (par exemple, le point dans le sens de l'envergure) et définissant une surface supérieure et une surface inférieure à chaque point dans le sens de l'envergure. Le profil aérodynamique rotatif définit également, sur une section transversale, un coefficient de portance (CL) qui est une fonction de l'angle d'attaque par lequel profil aérodynamique est entraîné en rotation dans l'air. Le système peut facultativement comprendre : un moyeu de rotor pour monter le profil aérodynamique rotatif, un mécanisme d'inclinaison pour faire pivoter le profil aérodynamique rotatif entre une configuration d'avance et une configuration de vol stationnaire, et un mécanisme de tangage pour modifier l'angle d'attaque du profil aérodynamique rotatif (100).
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