EP 1923572 B1 20150729 - Electric blower and electric cleaner using the same
Title (en)
Electric blower and electric cleaner using the same
Title (de)
Elektrisches Gebläse für ein elektrisches Reinigungsgerät
Title (fr)
Ventilateur électrique pour nettoyeur électrique
Publication
Application
Priority
JP 2006307424 A 20061114
Abstract (en)
[origin: EP1923572A2] There is provided an electric blower capable of satisfactorily enhancing the blowing efficiency of an impeller and an electric cleaner having the electric blower. In the electric blower of the present invention, an area of a passage cross-section perpendicular to a center line of a passage, defined by front shroud 2, rear shroud 3 and hub 6 of inducer 8 from inlet 5 to outlet 25 of impeller 1, is monotonically increased from inlet 5 to outlet 25. Accordingly, air flow speed depending on the flow rate in impeller 1 is gradually decreased throughout the whole passage from inlet 5 to outlet 25, so that acceleration or rapid deceleration of the air flow speed is prevented, thereby satisfactorily enhancing the blowing efficiency.
IPC 8 full level
F04D 29/28 (2006.01); F04D 25/08 (2006.01)
CPC (source: EP KR)
F04D 25/082 (2013.01 - EP); F04D 29/28 (2013.01 - KR); F04D 29/281 (2013.01 - EP); F04D 29/44 (2013.01 - KR); F04D 29/5806 (2013.01 - EP); F05D 2250/70 (2013.01 - EP)
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 1923572 A2 20080521; EP 1923572 A3 20101020; EP 1923572 B1 20150729; CN 100516546 C 20090722; CN 101182851 A 20080521; CN 201037473 Y 20080319; JP 2008121589 A 20080529; JP 4867596 B2 20120201; KR 101287250 B1 20130717; KR 20080043684 A 20080519
DOCDB simple family (application)
EP 07012832 A 20070629; CN 200710096774 A 20070412; CN 200720139698 U 20070412; JP 2006307424 A 20061114; KR 20070066813 A 20070704