What is the Definition of an Electric Fan Shroud?
It’s difficult to say when the first shroud was installed on an automobile, but some suggest that Daimler experimented with one on his first cars. These simple ducts take advantage of an old principle in aerodynamics to increase airflow and cooling ability.LocationFan shrouds enclose all but the front and back of an electric cooling fan and usually attach directly to the radiator or radiator core support with fasteners around its perimeter.Tip VorticesAll rotating blades produces small “tornadoes” of turbulence at the tips, which feed back through the blades and reduce airflow.DuctingA fan shroud works by isolating the fans outgoing air from the incoming, eliminating tip vortices and improving efficiency.
