F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/20, 230/3
F04D 29/36 (2006.01)
Patent
CA 1050946
ABSTRACT OF THE DISCLOSURE: An axial fan having adjustable pitch connectable blades variable in number. A pair of closing shells form a hub and a series of blades have a radial root. Interposed between the closing shells and the root of the blades, there are a plurality of cylindrical portions connected to the root and located in corresponding cylindrical seats connected to the shells. The assembly is locked by bolts or the like attaching means passing through the shells, seats and the cylindrical portions.
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