EP 1891334 A1 20080227 - CENTRIFUGAL PUMP
Title (en)
CENTRIFUGAL PUMP
Title (de)
KREISELPUMPE
Title (fr)
POMPE CENTRIFUGE
Publication
Application
Priority
CH 2005000337 W 20050616
Abstract (en)
[origin: WO2006133577A1] The impeller wheel disc (11; 21; 31), provided with at least one broad blade (15; 25L, 35L), of the impeller wheel (10; 20; 30), which can be driven by means of a shaft (60), of a centrifugal pump, in particular a non-clogging impeller, for feeding fluids with solid and gaseous additives is displaced in the direction of the drive by a distance D so that the impeller wheel chamber (5A; 105A) is increased in size by a part (5B; 105B) which is located further behind. Furthermore, the impeller wheel (20; 30) comprises, according to one preferred embodiment, at least one auxiliary blade (25S; 35S) whose central width is preferably approximately 50% of the width of the broad blade. This arrangement improves in particular the gas feeding capability of the pump.
IPC 8 full level
F04D 29/22 (2006.01)
CPC (source: EP US)
F04D 7/045 (2013.01 - EP US); F04D 29/2288 (2013.01 - EP US)
Citation (search report)
See references of WO 2006133577A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006133577 A1 20061221; AT E421043 T1 20090115; BR PI0520297 A2 20090428; BR PI0520297 B1 20180626; CA 2611141 A1 20061221; CA 2611141 C 20130122; CN 101208521 A 20080625; CN 101208521 B 20110831; DE 502005006506 D1 20090305; DK 1891334 T3 20090511; EP 1891334 A1 20080227; EP 1891334 B1 20090114; EP 1891334 B9 20090826; ES 2318497 T3 20090501; JP 2008544132 A 20081204; JP 5384103 B2 20140108; PL 1891334 T3 20090731; US 2009324402 A1 20091231; US 8025478 B2 20110927
DOCDB simple family (application)
CH 2005000337 W 20050616; AT 05750409 T 20050616; BR PI0520297 A 20050616; CA 2611141 A 20050616; CN 200580050115 A 20050616; DE 502005006506 T 20050616; DK 05750409 T 20050616; EP 05750409 A 20050616; ES 05750409 T 20050616; JP 2008516097 A 20050616; PL 05750409 T 20050616; US 91744005 A 20050616