|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||416/017; 416/037; 416/040; 416/061; 416/111; 416/119; 416/155|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 30 인용 특허 : 5|
A windmill includes a freely rotatable revolution shaft, a plurality of pairs of pivotal support rods provided at the revolution shaft, and wind receiving blades respectively and rotatably set between the pivotal support rods with wind receiving blade shafts. The windmill is applied to the driving of a lifting pump, a generator and the like by employing revolution driving force. An anemometer/anemoscope measures wind velocity and direction. A servo motor controls the direction of the wind receiving blades based on the detected velocity and direction. Var...
1. A windmill comprising:a rotatable revolution shaft; a plurality of pairs of upper and lower pivotal support rods provided around the revolution shaft; wind receiving blades put between the pairs of pivotal support rods and also respectively and rotatably set between the pairs of pivotal support rods with wind receiving blade shafts; servo motors directly coupled to said wind receiving blade shafts, for freely positioning directions of the wind receiving blades, respectively; wind receiving blade rotating position detectors for detecting rotating posit...