[특허]Wind turbine rotor hub and teeter joint

[미국특허] Wind turbine rotor hub and teeter joint 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F03D-001/06
출원번호	US-0113963 (1993-08-30)
발명자 / 주소	Coleman Clint (Warren VT) Kurth William T. (Warren VT) Jankowski Joseph (Stowe VT)
출원인 / 주소	Northern Power Systems, Inc. (Moretown VT 02)
인용정보	피인용 횟수 : 55 인용 특허 : 0

초록 ▼

A rotor hub is provided for coupling a wind turbine rotor blade and a shaft. The hub has a yoke with a body which is connected to the shaft, and extension portions which are connected to teeter bearing blocks, each of which has an aperture. The blocks are connected to a saddle which envelops the rotor blade by one or two shafts which pass through the apertures in the bearing blocks. The saddle and blade are separated by a rubber interface which provides for distribution of stress over a larger portion of the blade. Two teeter control mechanisms, which may include hydraulic pistons and springs, are connected to the rotor blade and to the yoke at extension portions. These control mechanisms provide end-of-stroke damping, braking, and stiffness based on the teeter angle and speed of the blade.

대표청구항 ▼

A wind turbine comprising: a rotor hub for connecting a rotor blade which rotates in a plane to a drive shaft, said rotor blade having a lengthwise dimension and a center relative to the lengthwise dimension, and a central portion which includes said center, said hub comprising a yoke assembly comprising a body attached to said drive shaft at a rearward end of said body, two extension portions, each extending from said body, and two teeter blocks, each connected at the end of said extension portions, each of said teeter blocks coupled to said rotor blade at said central portion in a manner which allows said rotor blade to teeter in a plane normal to the plane in which said rotor blade rotates, said wind turbine further comprising two selectively damping teeter control mechanisms, each connected to said yoke assembly and each coupled to said rotor blade, wherein one mechanism is coupled on either side of said center of said blade, said teeter control mechanisms selectively providing a damping force to said rotor blade.

이 특허를 인용한 특허 (55) 인용/피인용 타임라인 분석

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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Wind turbine rotor hub and teeter joint 원문보기