MULTI-STAGE CENTRIFUGAL AIR BLOWER

PROBLEM TO BE SOLVED: To provide a means that makes specified point efficiency improvement of a multi-stage centrifugal air blower compatible with small flow side operation range enlargement in configuration simplified as further as possible, the multi-stage centrifugal air blower including at least...

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Bibliographic Details
Main Authors SHINKAWA YASUSHI, KAMIKO SEIJI, HIRADATE SUMIMASA
Format Patent
LanguageEnglish
Published 07.10.2013
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:PROBLEM TO BE SOLVED: To provide a means that makes specified point efficiency improvement of a multi-stage centrifugal air blower compatible with small flow side operation range enlargement in configuration simplified as further as possible, the multi-stage centrifugal air blower including at least one swirl flow generator which gives a swirl flow to an impeller, just before an impeller of any stage.SOLUTION: In a multi-stage centrifugal air blower including at least one swirl flow generator which gives a swirl flow to an impeller, just before an impeller of any stage, only a specified point incident angle or deceleration ratio of an impeller of a stage just after the swirl flow generator is set smaller than the angle or the ratio of an impeller of the other stage.
Bibliography:Application Number: JP20120071073