EP 2420677 A1 20120222 - Multi-layer circulation pump
Title (en)
Multi-layer circulation pump
Title (de)
Mehrstufige Kreiselpumpe
Title (fr)
Pompe centrifuge à plusieurs niveaux
Publication
Application
Priority
EP 10008614 A 20100818
Abstract (en)
The multistage centrifugal pump has several wheels (36) in each pump stage (34) on common shaft (40). An impeller (6) and a diffuser (38) are arranged on each wheel. The liquid to be conveyed in the axial direction parallel to the rotational axis is made to enter into the impeller of first self-priming stage. The liquid from impeller of first self-priming stage is supplied to impeller of next stage in the axial direction.
Abstract (de)
Die Erfindung betrifft eine mehrstufige Kreiselpumpe mit zumindest zwei Stufen, wobei zumindest eine erste Stufe selbstansaugend ist, wobei die erste Stufe ein Laufrad (36) aufweist, welches derart ausgebildet ist, dass die zu fördernde Flüssigkeit in axialer Richtung parallel zur Drehachse (X) in das Laufrad eintritt und in derselben axialen Richtung aus dem Laufrad aus- und in ein Laufrad der zweiten Stufe eintritt.
IPC 8 full level
F04D 1/06 (2006.01); F04D 5/00 (2006.01); F04D 9/02 (2006.01); F04D 29/18 (2006.01); F04D 29/22 (2006.01)
CPC (source: EP)
F04D 1/066 (2013.01); F04D 5/002 (2013.01); F04D 9/02 (2013.01); F04D 29/188 (2013.01); F04D 29/2216 (2013.01)
Citation (search report)
- [XI] US 2004223842 A1 20041111 - TALASKI EDWARD J [US]
- [XI] DE 19539909 A1 19970130 - AISAN IND [JP]
- [A] GB 776635 A 19570612 - FABIG GEORG
- [A] US 2004136823 A1 20040715 - BAEK SE-DONG [KR], et al
- [A] WO 0006910 A1 20000210 - VOGEL WILLI AG [DE], et al
- [A] US 4865519 A 19890912 - DIANKUI LIU [CN], et al
- [A] EP 0718501 A1 19960626 - BOMBAS ELECTRICAS SA [ES]
- [A] DE 10239997 A1 20040304 - GARDENA MFG GMBH [DE]
- [A] DE 19709598 A1 19980910 - LAVRIDS KNUDSEN MASKINFABRIK A [DK]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 10008614 A 20100818