MULTI-BLADE FAN

MULTI-BLADE FAN

A multiblade blower (1) includes: a first impeller (3a) arranged in a casing (2) having an air inlet (6) ; and a second impeller (3b) arranged in an internal space of the first impeller. The first impeller is a centrifugal fan including a plurality of first-impeller blades (11). The second impeller...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: KATO, YASUAKI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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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Beschreibung
Zusammenfassung:A multiblade blower (1) includes: a first impeller (3a) arranged in a casing (2) having an air inlet (6) ; and a second impeller (3b) arranged in an internal space of the first impeller. The first impeller is a centrifugal fan including a plurality of first-impeller blades (11). The second impeller is an axial-flow fan including a plurality of second-impeller blades (14) extending radially from a rotation axis (5). In the second-impeller blades, a swirling-direction component of a wake in a region on an outer peripheral side in the internal space of the first impeller is smaller than a swirling-direction component of a wake in a region on an inner peripheral side in the internal space.