| 摘要 |
<p>A wind-driven electrical power-generating device has a wind turbine (11) connected to an electrical generator (12), with both the wind turbine (11) and the generator (12) being mounted on a support structure (14) with freedom of movement through 360° in the horizontal plane such that, in use the wind turbine (11) locates downwind of the support structure (14) in a self-orintating manner. The wind turbine (11) is in the form of a housing (16) having an air intake (17) and an air outlet (19) and a plurality of turinbe blades (21), located therebetween in the form of a ring (35). A recovery ring of turbine blades (48) is located aft of the turbien blade ring (35). Passage of air over a vortex generator (23), mounted on an outer surface (24) of the housing (16), results in the formation of a vortex downwind of the air outlet (19). This has the effect of lowering the air pressure immediately aft of the air outlet (19), which causes the seped of the airflow through the housing (16) to increase, resulting in an increase in power output.</p> |
