Patent ID: 8203228
Filing Date: 2012-06-19
Classification: F03D,F05B,Y02E

Abstract:
1. An aerogenerator, comprising: an impeller rotatable by the wind; a rotatable shaft which mounts the impeller to a support structure such that the impeller is rotatable; a rotatable plate provided on the rotatable shaft and shaped such that a thickness thereof increases in one direction relative to one extrapolated line perpendicular to the central rotation axis and reduces in an opposite direction relative to the extrapolated line, whereby the rotatable plate has a difference in height relative to the central rotation axis at the same position along the length of the central rotation axis when the impeller rotates; a rocker arm provided in such a way that a predetermined portion thereof is rotatably fixed to the support structure, the rocker arm having a first end contacting a surface of the rotatable plate, and operated such that, as the first end of the rocker arm is moved because of a difference in height of the rotatable plate, a second end of the rocker arm moves in a direction of the central rotation axis; a pressure member for pushing the first end of the rocker arm towards the rotatable plate such that the rocker arm is in surface contact with the rotatable plate when the rotatable plate rotates; a link rotatably provided on the second end of the rocker arm; a rod connected to the link in such a way as to be movable in a linear reciprocating motion in a direction of the length of the central rotation axis in association with the motion of the rocker arm caused by a difference in height of the rotatable plate; a magnet provided on the rod such that the magnet reciprocates with the rod, the magnet having magnetic force; an induction coil provided outside the reciprocating magnet and interacting with the magnet to create an induced voltage; a transform unit for transforming the induced voltage of the induction coil to an electric current; and an electricity storage unit for storing the electric current of the transform unit.