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1. (WO2019025918) SINGLE ARM FAILURE REDUNDANCY IN A MULTI-ROTOR AERIAL VEHICLE WITH LEAST ROTORS/PROPELLERS
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Pub. No.: WO/2019/025918 International Application No.: PCT/IB2018/055627
Publication Date: 07.02.2019 International Filing Date: 27.07.2018
IPC:
B64C 17/00 (2006.01) ,B64C 27/08 (2006.01) ,B64C 39/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
17
Aircraft stabilisation not otherwise provided for
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
27
Rotorcraft; Rotors peculiar thereto
04
Helicopters
08
with two or more rotors
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
39
Aircraft not otherwise provided for
02
characterised by special use
Applicants:
IDEAFORGE TECHNOLOGY PVT. LTD. [IN/IN]; EL-146 TTC Industrial Area, Electronic Zone, MIDC Mahape, Navi Mumbai Maharashtra 400710, IN
Inventors:
BHAT, Ashish; IN
Agent:
KHURANA & KHURANA, ADVOCATES & IP ATTORNEYS; E-13, UPSIDC, Site-IV, Behind-Grand Venice Kasna Road, Greater Noida, National Capital Region, Uttar Pradesh 201310, IN
Priority Data:
20172102784704.08.2017IN
Title (EN) SINGLE ARM FAILURE REDUNDANCY IN A MULTI-ROTOR AERIAL VEHICLE WITH LEAST ROTORS/PROPELLERS
(FR) REDONDANCE DE DÉFAILLANCE DE BRAS UNIQUE DANS UN VÉHICULE AÉRIEN À ROTORS MULTIPLES AYANT AU MOINS DES ROTORS/HÉLICES
Abstract:
(EN) A multi-rotor Aerial Vehicle with least rotors/propellers and having single arm failure redundancy is disclosed. The AV comprises at least five arms with at least one arm having a co-axial pair of contra rotating rotors/propellers. To maintain yaw stability under normal conditions, half of rotors/propellers are rotated in one direction and other half in opposite direction. In the event of failure of any one of the rotors/propellers located adjacent to the pair of contra rotating rotors/propellers, the one propeller/rotor out of the contra rotating rotor/propeller that is rotating opposite to the failed rotor/propeller is shut off. In the event of failure of a rotor/propeller belonging to contra rotating rotors/propellers, other rotor/propeller of the pair is shut off. In the event of failure of any one of rotors/propellers not adjacent to contra rotating rotors/propellers, the RPMs of other rotors/propellers is adjusted to maintain stability and navigate the Aerial Vehicle.
(FR) L'invention concerne un véhicule aérien à rotors multiples ayant au moins des rotors/hélices et ayant une redondance de défaillance de bras unique. Le véhicule aérien comprend au moins cinq bras avec au moins un bras ayant une paire coaxiale de rotors/d'hélices contrarotatifs. Pour maintenir la stabilité de lacet dans des conditions normales, la moitié des rotors/hélices tourne dans une direction et l'autre moitié dans la direction opposée. En cas de défaillance de l'un quelconque des rotors/hélices situé à côté de la paire de rotors/d'hélices contrarotatifs, l'hélice/le rotor parmi les rotors/hélices contrarotatifs qui tourne à l'opposé du rotor/de l'hélice défaillant est coupé. En cas de défaillance d'un rotor/d'une hélice faisant partie des rotors/hélices contrarotatifs, l'autre rotor/hélice de la paire est coupé. En cas de défaillance de l'un quelconque des rotors/hélices non adjacents aux rotors/hélices contrarotatifs, les vitesses de rotation des autres rotors/hélices sont ajustées pour maintenir la stabilité et faire naviguer le véhicule aérien.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)