F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 29/30 (2006.01) F04D 17/16 (2006.01)
Patent
CA 2168551
A multiblade centrifugal fan has numerous blades disposed circumferentially spaced from each other and numerous annular plates disposed radially inside the blades as stacked in the direction in which the rotation axis of the multiblade centrifugal fan extends with narrow intervening spaces between adjacent ones thereof.
Ventilateur centrifuge possédant plusieurs aubes écartées les unes des autres dans le sens circonférentiel. Ce ventilateur est pourvu de plusieurs plaques annulaires empilées dans les parties radialement intérieures des aubes de telle manière qu'elles soient légèrement écartées les unes des autres dans le sens axial du ventilateur centrifuge à aubes multiples.
Haraga Hisato
Hatakeyama Makoto
Shinbara Noboru
Dennison Associates
Toto Ltd.
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