PROPELLER AND CYLINDRICAL MULTIVANE FAN

PURPOSE:To reinforce a vane as well as to obtain its smooth/rotation by forming beads in circular arc or straight line form on a part of a vane along the direction of rotation. CONSTITUTION:Circular-arc formed beads 2 are provided on vanes 1 which form a fan in such a manner that the form of a bead...

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Bibliographic Details
Main Author AKAISHI MINEICHI
Format Patent
LanguageEnglish
Published 29.10.1983
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:PURPOSE:To reinforce a vane as well as to obtain its smooth/rotation by forming beads in circular arc or straight line form on a part of a vane along the direction of rotation. CONSTITUTION:Circular-arc formed beads 2 are provided on vanes 1 which form a fan in such a manner that the form of a bead is in accordance with the rotational locus of the corresponding point on the vane. On the other hand, beads 2 are provided at more than one place in the same manner as the above on vanes 3 along their longitudinal or perpendicular to rotational direction. Thus, vanes of thin plating are reinforced by beads, while not only the beads receive no wind pressure resistance but they serve in forming stationary and uniform wind flow loca, eliminating vane vibration and noise.
Bibliography:Application Number: JP19820067222