IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0874222
(1978-02-01)
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발명자
/ 주소 |
- Ducker William L. (Lubbock TX)
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출원인 / 주소 |
- First National Bank of Lubbock (Lubbock TX 02)
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인용정보 |
피인용 횟수 :
16 인용 특허 :
2 |
초록
▼
A system of rotatably and pivotally mounted radially extended bent supports for radially extending windmill rotor vanes in combination with axially movable radially extended control struts connected to the vanes with semi-automatic and automatic torque and other sensing and servo units provide autom
A system of rotatably and pivotally mounted radially extended bent supports for radially extending windmill rotor vanes in combination with axially movable radially extended control struts connected to the vanes with semi-automatic and automatic torque and other sensing and servo units provide automatic adjustment of the windmill vanes relative to their axes of rotation to produce mechanical output at constant torque or at constant speed or electrical quantities dependent thereon.
대표청구항
▼
An adjustable vane windmill comprising, in operative combination, a frame assembly, a rotor and control assembly, said rotor and control assembly comprised of a rotor assembly and a control assembly, said rotor and control assembly rotatably supported on said frame assembly, said frame assembly supp
An adjustable vane windmill comprising, in operative combination, a frame assembly, a rotor and control assembly, said rotor and control assembly comprised of a rotor assembly and a control assembly, said rotor and control assembly rotatably supported on said frame assembly, said frame assembly supported on the ground; said rotor assembly comprising a hub, a plurality of rotor blades, struts, a rigid straight blade control shaft and a rigid straight shaft support sleeve, said rotor blades rotatably supported on said hub, each of the rotor blades comprising a rigid blade frame and a rigid bent spar, a vane surface cover for said frame, each bent spar having a central straight portion and a peripheral straight portion bent at an angle to said central straight portion, each of the peripheral and central straight portions joined at a bend therebetween, each of the central straight portions rotatably supported on said hub, each of the peripheral straight portion of each of the bent spars extending at an angle to the length of said control shaft. each blade frame having an inner, central, edge and an outer, radial edge, a leading edge and a trailing edge and said cover forming a windward vane surface on one side thereof and a rear vane surface on the other side thereof, one portion of a pivotal strut-vane joint firmly attached to each blade frame intermediate the inner, central, edge and the outer, radial, edge thereof, the peripheral portion of each spar being attached to a blade frame, said hub firmly supported on and attached to the shaft support sleeve and said sleeve rotatably supported on said control assembly, said hub comprising a rigid plate firmly fixed to said sleeve and supporting spar shaft bearings, the central straight portion of each of said spars pivotally held on said hub in a bearing in a radially symmetrical array about said sleeve, said blade control shaft being co-axial with said shaft support sleeve and supported by said shaft support sleeve and being movable along the length of said shaft-support sleeve, a collar firmly fixed to said blade control shaft at its rear end and supporting one part of each of a plurality of a strut-collar joints at positions equispaced around said collar a second part of a vane-strut joint fixedly attached to one, radial, end of each of said struts, and a second part of a strut-collar joint fixedly attached to the other, central, end of each of said struts distant from said one end, said first and second parts of said vane-strut joint and said first and second parts of said vane-collar joints being pivotally connected, and each of said struts being rigid and extending from a strut-vane joint on the rotor blade to a strut-collar joint, and power output means operatively connected to said shaft support sleeve, said frame assembly comprising a vertically extending pedestal support and a pedestal on said support and said rotor and control assembly rotatably mounted on said pedestal for rotation about a vertical axis, and said control assembly comprising longitudinally movable means attached to said blade control shaft.
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