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특허 상세정보

Windmill

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F03D-007/02   
미국특허분류(USC) 416/132B ; 416/167 ; 416/41
출원번호 US-0296973 (1981-08-27)
발명자 / 주소
인용정보 피인용 횟수 : 20  인용 특허 : 1
초록

A windmill having blades with both variable pitch and variable spanwise twist. The windmill includes a hub which may be supported on top of a tower for rotation about a substantially horizontal axis. A plurality of blades are provided, each having a root, a tip and a spanwise twistable intermediate section. Linkage mechanisms connect the roots of the blades to the hub to permit selective independent rotation of the roots and the tips of the blades for varying the pitch and the spanwise twist of the blades. An electric power generator is drivingly connect...

대표
청구항

A windmill comprising: a hub; means for supporting the hub for rotation about a substantially horizontal axis; a plurality of blades each having a root, a tip and a spanwise twistable intermediate section; linkages means for connecting the roots of the blades to the hub to permit selective independent rotation of the roots and the tips for varying the pitch and the spanwise twist of the blades independently; an electric power generator; means for providing a driving connection between the hub and the generator; and control means connected to the linkage ...

이 특허를 인용한 특허 피인용횟수: 20

  1. Schilder, Hans. Axial flow machine, particularly a blower, with adjustable rotor blades. USP1985104545734.
  2. Hinz,Uwe; Ramundt,Ernst Wilhelm. Device for adjusting the angle of incidence of a rotor blade of a wind power installation. USP2007077244097.
  3. Barber, Gerald L.. Electrical generator for wind turbine. USP2013028373298.
  4. Barber, Gerald L.. Floating wind turbine with turbine anchor. USP2012058178993.
  5. Barber, Gerald L.. Floating wind turbine with turbine anchor. USP2013078487471.
  6. Barber, Gerald L.. Floating wind turbine with turbine anchor. USP2012048164212.
  7. Cahill, Frank E.. Method and apparatus for adjusting the pitch of a fan blade. USP2003076592328.
  8. Sisson Steve S. (Seattle WA) Tremoulet ; Jr. Olivier L. (Edmonds WA) Mercer John E. (Kent WA). Method and apparatus for attaching blades to rotating structures. USP1985074525911.
  9. Nanukuttan, Biju; Dasari, Rajanikanth Reddy; Pathuvoth, Dhanesh Chandrashekar; Samudrala, Srikanth; Lakshminarayana, Mohan Kumar. Pitch assembly for a wind turbine rotor blade. USP2018059970414.
  10. Pasquet, Pierre. Pitch system for a wind turbine rotor. USP2017029567973.
  11. Podgurski, Daniel M.. Rotor assembly apparatus. USP2018069994310.
  12. Wenclik, Mateusz Pawel; Korim, David Charles. Start-up method for a wind turbine and a control assembly. USP2016129523282.
  13. Dawson, Mark H.; Wallace, Jack A.. Telescoping wind turbine blade. USP2009127632070.
  14. Barber, Gerald L.. Wind turbine. USP2012028109727.
  15. Barber, Gerald L.. Wind turbine. USP2012038134251.
  16. Canal Vila, Marc; Miguel Alfaro, Daniel. Wind turbine blade and methods of operating it. USP2017109790917.
  17. Bech, Anton; Madden, Gerry. Wind turbine pitch bearing, and use hereof. USP2011118047792.
  18. Barber, Gerald L.. Wind turbine with paired generators. USP2012058174142.
  19. Barber, Gerald L.. Wind turbine with sail extensions. USP2012098258645.
  20. Chertok Allan (Bedford MA) Gjertsen ; Sr. John (Bedford MA) Manfredi Louis (Watertown MA). Windpower system. USP1984124490093.