Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing
Patent
1989-06-08
1990-04-10
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Axially extending shroud ring or casing
416192, 416242, F04D 2938
Patent
active
049155881
ABSTRACT:
An axial flow ring fan has improved efficiency and reduced noise by making the leading edge of each blade a generally sinusoidal shape and projecting this geometry throughout the blade by imparting fall off to each blade.
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Boller George L.
Powell Jr. Everette A.
Siemens-Bendix Automotive Electronics Limited
Wells Russel C.
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