公开(公告)号：WO2020019004A1

公开(公告)日：2020-01-23

申请号：PCT/VN2019/000012

申请日：2019-07-19

Applicant: TRAN, Dinh Thuy ,  NGUYEN, Hoang Anh

Inventor： TRAN, Dinh Thuy ,  NGUYEN, Hoang Anh

IPC: F03D5/06

Abstract: The invention relates to an oscillating blade type windmill includes one or more layer blades moving in opposite directions, cutting off the windward and each layer blade having only one blade. The oscillating blade type windmill according to the present invention comprises a windward angle adjusting apparatus (2) is arranged at the root of blade (1) and shaft (3), an energy and inertia accumulator/releaser (4) of the blade (1) for accumulating energy when the blade (1) moves out of the equilibrium position (the equilibrium position is the position where the blade (1) in the vertical state), and release energy when the blade (1) has the largest angle of inclination relative to the equilibrium position, a variable speed mechanical assembly (5) converts the oscillating motion of the blade (1) into a rotary motion and increases the rotation speed, which is located between the shaft (3) and the motor (6). The windmill further includes a balance weight (7) for balancing weight; of blade (1). The outer shell (8) is located on the ground and automatically rotates blade (1) to windward by a windward angle adjusting apparatus (2), or located on a tower pillar (9), while the windmill using on the sea, lakes or rivers. Wherein the tower pillar (9) is shorter than the blade length (1) many times.