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1. (WO2017148135) PROPELLER, POWER ASSEMBLY AND AIRCRAFT
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Pub. No.: WO/2017/148135 International Application No.: PCT/CN2016/099694
Publication Date: 08.09.2017 International Filing Date: 22.09.2016
IPC:
B64C 11/18 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
64
AIRCRAFT; AVIATION; COSMONAUTICS
C
AEROPLANES; HELICOPTERS
11
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
16
Blades
18
Aerodynamic features
Applicants:
深圳市大疆创新科技有限公司 SZ DJI TECHNOLOGY CO., LTD. [CN/CN]; 中国广东省深圳市 南山区高新区南区粤兴一道9号香港科大深圳产学研大楼6楼 6F, HKUST SZ IER Bldg. No.9 Yuexing 1st Rd., Hi-tech Park (south), Nanshan District Shenzhen, Guangdong 518057, CN
Inventors:
刘峰 LIU, Feng; CN
邓涛 DENG, Tao; CN
江彬 JIANG, Bin; CN
Agent:
深圳市赛恩倍吉知识产权代理有限公司 SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD.; 中国广东省深圳市 龙华新区龙观东路83号荣群大厦9楼 9F, Rongqun Building No.83 Longguan East Rd., Longhua New Dist. Shenzhen, Guangdong 518109, CN
Priority Data:
201620153117.829.02.2016CN
Title (EN) PROPELLER, POWER ASSEMBLY AND AIRCRAFT
(FR) HÉLICE, ENSEMBLE D'ALIMENTATION ET AÉRONEF
(ZH) 螺旋桨、动力组件及飞行器
Abstract:
(EN) A propeller, a power assembly and an aircraft, the propeller comprising a hub (2) and blades (1) connected to the hub (2). At the distance of 40% from a propeller disk centre, the chord length of the blades (1) is 13.8mm ±5mm and the angle of attack is 17.1° ±2.5°. At the distance of 60% from the propeller disk centre, the chord length of the blades (1) is 11.9mm ±5mm and the angle of attack is 14.3° ±2.5°. At the distance of 80% from the propeller disk centre, the chord length of the blades (1) is 10.3mm ±5mm and the angle of attack is 12.4° ±2.5°. The propeller, power assembly and aircraft effectively reduce the resistance of the propeller during rotation and improve the force conversion efficiency.
(FR) L'invention concerne une hélice, un ensemble d'alimentation et un aéronef, l'hélice comprenant un moyeu (2) et des pales (1) reliées au moyeu (2). À la distance de 40 % depuis un centre de disque d'hélice, la longueur de corde des pales (1) est 13,8 mm ± 5 mm et l'angle d'attaque est 17,1° ± 2,5°. À la distance de 60 % depuis le centre de disque d'hélice, la longueur de corde des pales (1) est 11,9 mm ± 5 mm et l'angle d'attaque est 14,3° ± 2,5°. À la distance de 80 % depuis le centre de disque d'hélice, la longueur de corde des pales (1) est 10,3 mm ± 5 mm et l'angle d'attaque est 12,4° ± 2,5°. L'hélice, l'ensemble d'alimentation et l'aéronef réduisent efficacement la résistance de l'hélice pendant la rotation et améliorent l'efficacité de conversion de force.
(ZH) 一种螺旋桨、动力组件及飞行器,其中,螺旋桨,包括桨毂(2)及连接在桨毂(2)上的桨叶(1),在与桨盘中心相距为40%处,所述桨叶(1)的弦长为13.8mm±5mm,攻角为17.1°±2.5°;在与桨盘中心相距为60%处,所述桨叶(1)的弦长为11.9mm±5mm,攻角为14.3°±2.5°;在与桨盘中心相距为80%处,所述桨叶(1)的弦长为10.3mm±5mm,攻角为12.4°±2.5°,本方案的螺旋桨、动力组件及飞行器能够有效减小螺旋桨在转动过程中的阻力,提高力转换效率。
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, 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: Chinese (ZH)
Filing Language: Chinese (ZH)