Patent ID: 7884490
Filing Date: 2011-02-08
Classification: F01D,F03G,F05D

Abstract:
1. An electric power producing apparatus comprising: a blade having a natural frequency designed for a specific fluid flow speed; the blade being secured to a support so that the blade can vibrate in a fluid flow across the blade; the blade having a leading edge and a trailing edge with the fluid flowing over both sides of the blade from the leading edge to the trailing edge; the blade extending from the support to a blade tip in a spanwise direction of the blade that is perpendicular to the fluid flow direction; one of a magnetic and a coil secured to the blade tip; the other of the magnet and the coil secured to a fixed support near the magnet such that movement of the magnet will produce an electric current within the coil; and, fluid flow supply means to pass a fluid across the blade at around a predetermined speed to cause the blade to resonate at the natural frequency and produce electric current in the coil.