Aeronautics and astronautics – Aircraft structure – Ice prevention
Patent
1991-08-12
1994-06-21
Huppert, Michael S.
Aeronautics and astronautics
Aircraft structure
Ice prevention
244200, 244204, B64D 1500
Patent
active
053222466
ABSTRACT:
An aft facing step situated across the span of an airfoil. A chemical or thermal deicing or running wet anti-icing device is located in or on the airfoil upstream of the step, and causes water to run back towards the step. The step suddenly reduces the thickness of the airfoil chord section, which causes a disturbance in the boundary layer across the span of the airfoil downstream of the step. The aforementioned disturbance causes runback water to form droplets and be blown clear of the airfoil surface downstream of the step, thereby preventing ice from being formed on the airfoil surface downstream of the step.
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Boronow Walter S.
Henne Preston A.
Himebaugh Willard D.
Wong Samuel L.
Bidwell Anne E.
Huppert Michael S.
McDonnell Douglas Corporation
Scholl John P.
Skorich James M.
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