VENTILATION SYSTEM AND COMPONENTS THEREOF

摘要

A ventilation inlet is provided for an enclosed space that may be convertible between a ventilation inlet and a ventilation outlet configuration. An elevated wind operated turbine is coupled to a fan so that it rotates in direct response to rotation of the turbine. The fan is arranged within a duct and is configured to move air within the duct downwards or upwards towards or away from a lower air discharge opening. A single duct communicates between an elevated air inlet and a lower air discharge opening. A natural ventilation system is also provided in which an enclosed space has an air inlet provided with such an air inlet and an air outlet is provided such that air entering by way of the air inlet passes through the enclosed space flowing from the air discharge opening to the air outlet.