Fan with scroll casing decreasing in cross-section

A fan assembly 200, for generating an air flow within a room, includes an impeller 22 and a motor 26 to draw an air flow into the fan assembly. The fan assembly further includes a casing having an interior passage 202 with a scroll section having a cross-sectional area that decreases from a scroll i...

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Bibliographic Details
Main Authors MARK JAMES ADKIN, DAVID ANDREW TIBBETTS, NEIL ANDREW STEWART
Format Patent
LanguageEnglish
Published 23.01.2013
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
SIPHONS
WEAPONS
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Summary:A fan assembly 200, for generating an air flow within a room, includes an impeller 22 and a motor 26 to draw an air flow into the fan assembly. The fan assembly further includes a casing having an interior passage 202 with a scroll section having a cross-sectional area that decreases from a scroll inlet section 214 to a scroll outlet section 208. The scroll inlet section has an inlet 206 for receiving the air flow, and the scroll outlet section has an outlet for returning a first portion of the air flow to the scroll inlet section. The scroll section includes an air outlet 206 for emitting a second portion of the air flow from the casing. The casing defines a bore through which air from outside the fan assembly is drawn by the air emitted from the air outlet.
Bibliography:Application Number: GB20110012219