(19)
(11) EP 3 211 224 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
11.10.2017 Bulletin 2017/41

(43) Date of publication:
30.08.2017 Bulletin 2017/35

(21) Application number: 15852882.8

(22) Date of filing: 23.07.2015
(51) International Patent Classification (IPC): 
F03D 7/04(2006.01)
 F03D 1/06(2006.01)
(86) International application number:
PCT/CN2015/084917
(87) International publication number:
WO 2016/062139 (28.04.2016 Gazette 2016/17)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA

(30) Priority: 21.10.2014 CN 201410561011

(71) Applicant: Zhang, Xiaoxin
Zhangjiakou, Hebei 075131 (CN)

(72) Inventors:
  • ZHANG, Daoyu
    Hebei 075000 (CN)
  • ZHANG, Xiuguo
    Hebei 075000 (CN)
  • LIU, Haipeng
    Hebei 075000 (CN)
  • YANG, Fei
    Beijing 100000 (CN)
  • BAI, Junping
    Hebei 075131 (CN)
  • BAI, Zhenyi
    Hebei 075131 (CN)
  • HAN, Yanjie
    Jinan, Shandong 250000 (CN)
  • WANG, Xingtao
    Hebei 075000 (CN)
  • JIA, Xuejiao
    Chongqing 400000 (CN)
  • ZHANG, Xiaoxin
    Zhangjiakou, Hebei 075131 (CN)

(74) Representative: Papa, Elisabetta et al
Società Italiana Brevetti S.p.A Piazza di Pietra, 39
00186 Roma
00186 Roma (IT)

   


(54) SINGLE-FRAME TYPE IMPELLER OF WIND TURBINE


(57) The present invention relates to the technical field of wind power generating equipment, in particular to a single-frame impeller of a wind turbine generator set. Influenced by the structure, materials and the like, a horizontal-shaft wind turbine generator set in the prior art has problems of low wind energy utilization rate, relatively high design requirements, relatively large volume and weight, difficulty in maintenance and repairing, likeliness in over-speed flying, and the like. The single-frame impeller of the wind turbine generator set includes a wind wheel frame, a blade adjusting device, a supporting base and oblique supporting rods, wherein the blade adjusting device and the supporting base are connected and assembled to the front end of a generator main shaft, the wind wheel frame and the supporting base are connected through the oblique supporting rods, and blades encircle the blade adjusting device and are assembled in the wind wheel frame through shafts; and the blade adjusting device is provided with a closed adjusting chamber, and a gear-type, a gear-rack-type or a connecting-rod-type combined adjusting mechanism is assembled in the adjusting chamber. The present invention changes a connecting way of the blades and increases the quantity of the blades, thereby increasing the wind energy utilization efficiency, increasing the overall output power, decreasing the failure rate and improving the safety, reliability and economical efficiency.