Cross Flow Fan Aircraft
Aircraft concepts using cross flow fans.
Cross flow fan aircraft. The cross flow fan system including a cross flow fan assembly associated with a rotatable wing. Cross flow fan aircraft thrust blades prior art date 2016 08 10 legal status the legal status is an assumption and is not a legal conclusion. Hybrid axial and cross flow fan propulsion for transonic blended wing body aircraft utilization of embedded distribution propulsion has the potential to greatly improve the cruise efficiency of next generation transport aircraft through the ingestion of the low momentum wake created by the surface of the wings and or body of the vehicle into. The present invention includes improvements to cross flow fans and cross flow fan propelled aircraft including improved control a dynamically adjustable vortex wall and internal housing a vortex tube vertical takeoff and landing rotorcraft configurations the inclusion of an optimized oscillating blade fan a wavy vortex wall power plant refinements dual leading and trailing edge.
The rotor of a cross flow fan is covered to create a pressure differential. A cross flow fan is a centrifugal fan in which the air flows straight through the fan instead of at a right angle. Cross flow fans have a smaller opening on one side and a larger opening on the other. The cross flow fan has unique advantages for aircraft applications with its ability to span the wing forming a natural distributed propulsion and or flow control system.
A recent conceptual design study of light weight single seat vtol aircraft suggest that rotary engine powered cross flow fans may constitute a promising alternative to the conventional lift fan. An aspect provides an aircraft including a fuselage and a cross flow fan system attached to the fuselage. Mechanical engineering student lt eric smitley demonstrates his cross flow fan propelled uav. 2009 numerical simulation of flow over an airfoil with a cross flow fan as a lift generating member in a new aircraft model aircraft engineering and aerospace technology vol.
Cross flow fan propulsion has not been seriously considered for aircraft use since an vought systems division vsd study for the u s.