EP 1747377 B1 20090121 - IMPELLER
Title (en)
IMPELLER
Title (de)
LAUFRAD
Title (fr)
ROUE
Publication
Application
Priority
- SE 2005000541 W 20050414
- SE 0400964 A 20040415
Abstract (en)
[origin: WO2005100796A1] The present invention. relates to an open or half- open channel impeller for a centrifugal pump for waste-water. The channel impeller has a substantially circular periphery and comprises a central hub with a hub axis and a hub plane to which the hub axis extends perpendicularly. The channel impeller further comprises at least one blade which extends from the hub to the periphery. Each blade has a front edge adjacent to the hub, which front edge is continuously curved with an inclination to the hub plane which is 20<°> minimum and 50° maximum. The invention also relates to a centrifugal pump comprising such a channel impeller.
IPC 8 full level
F04D 7/04 (2006.01); F04D 29/22 (2006.01); F04D 29/24 (2006.01)
IPC 8 main group level
F04D (2006.01)
CPC (source: EP SE)
F04D 7/04 (2013.01 - SE); F04D 29/225 (2013.01 - EP); F04D 29/245 (2013.01 - SE); F05D 2240/303 (2013.01 - EP)
Citation (examination)
- ITT FLYGT AB: "PARTS LIST 2066.171, 2066.171-U, 2066.171-W", PARTS LIST, November 2001 (2001-11-01), Sweden
- EDH: "IMPELLER", DRAWING NO. 270 21 00, 26 May 2007 (2007-05-26)
- ITT FLYGT AB: "PARTS LIST 2052.170, 2052.170-U, 2052.170-W", PARTS LIST, May 2003 (2003-05-01)
- EDH: "IMPELLER", DRWING NO. 265 35 00, 26 May 2007 (2007-05-26)
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 2005100796 A1 20051027; AT E421638 T1 20090215; DE 602005012498 D1 20090312; EP 1747377 A1 20070131; EP 1747377 B1 20090121; SE 0400964 D0 20040415; SE 0400964 L 20051011; SE 526557 C2 20051011
DOCDB simple family (application)
SE 2005000541 W 20050414; AT 05732227 T 20050414; DE 602005012498 T 20050414; EP 05732227 A 20050414; SE 0400964 A 20040415