Vortex flow blower having blades each formed by curved surface a

Details Vortex flow blower having blades each formed by curved surface a Vortex flow blower having blades each formed by curved surface a

1993-03-01

1995-03-07

Kwon, John T.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

415 554, F04D 500

Patent

active

053952103

ABSTRACT:
A vortex flow blower used as an air source to be incorporated into general industrial machines. The vortex flow blower is characterized in that the shape of the blade in its impeller is three dimensionally formed such that at least the inner portion of the blade can be adapted to the three dimensional internal flow. According to the present invention, the aerodynamic performance can be significantly improved and the size of a vortex flow blower can be reduced. Furthermore, an impeller having three dimensionally shaped blades is manufactured by independently manufacturing the shroud and the blades and coupling them, so that the impeller of a complicated shape can be readily manufactured. Furthermore, since the blade can be made of a thin and light material, the secondary moment of inertia of the impeller can be reduced.

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Hitachi Vortex Blowers, G Series (No date).
Transaction of Japan Machinery Society, vol. 45, Aug., 1979, pp. 1108-1116.
Partial Translation of "Transaction of Japan Machinery Society", vol. 45 (Aug., 1979, pp. 1108-1116) (p. 1112, left col., lines 4-13).

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