F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 17/10 (2006.01) F04D 29/42 (2006.01)
Patent
CA 2314532
A blower is disclosed. The blower comprises an impeller and a scroll housing. The impeller is provided with a plurality of blades and rotated. The scroll housing guides and discharges air sucked by the impeller to the outside, and surrounds the impeller. The expansion angle of the curvature radius of the contour of the scroll housing is designed to be less than an expansion angle in conformity with an Archimedic curve in a suction region ranging from a cutoff start angle to 160-200° from a reference angle. Additionally, the expansion angle of the curvature radius of the contour of the scroll housing is designed to be greater than the expansion angle in conformity with the Archimedean curve in a discharge region ranging exceeding 160-200°.
Lee Joon Sei
Park Sung II
Song Sung Bae
Fetherstonhaugh & Co.
Lg Electronics Inc.
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