EP 2940307 A1 20151104 - AN IMPELLER FOR A CENTRIFUGAL PUMP, A CENTRIFUGAL PUMP AND A USE THEREOF
Title (en)
AN IMPELLER FOR A CENTRIFUGAL PUMP, A CENTRIFUGAL PUMP AND A USE THEREOF
Title (de)
FLÜGELRAD FÜR EINE ZENTRIFUGALPUMPE, ZENTRIFUGALPUMPE UND VERWENDUNG DAVON
Title (fr)
ROTOR POUR POMPE CENTRIFUGE, POMPE CENTRIFUGE ET UTILISATION DE CELLE-CI
Publication
Application
Priority
- EP 14165689 A 20140423
- EP 15162956 A 20150409
Abstract (en)
The present invention relates to an impeller (40) for a centrifugal pump, a centrifugal pump and a use thereof. The present invention relates especially to a novel closed impeller (40) structure for a centrifugal pump. The impeller (40) is characterized by pump-out vanes (48) on the rear shroud and pump-out vanes (50) on the front shroud (44). The front pump-out vanes (50) are dimensioned according to a specific formula. The centrifugal pump utilizing the impeller (40) of the present invention is suitable for pumping both clean liquids and solids-containing liquids like for instance fibrous suspensions of pulp and paper or board industry.
IPC 8 full level
F04D 7/04 (2006.01); F04D 29/22 (2006.01); F04D 31/00 (2006.01)
CPC (source: EP RU US)
F04D 7/04 (2013.01 - EP US); F04D 7/045 (2013.01 - RU); F04D 29/2216 (2013.01 - EP RU US); F04D 29/2266 (2013.01 - EP US); F04D 31/00 (2013.01 - EP US)
Citation (applicant)
US 2009226317 A1 20090910 - GELDENHUYS SIEGFRIED [ZA]
Citation (search report)
- [A] WO 2009143570 A1 20091203 - WEIR MINERALS AUSTRALIA LTD [AU], et al
- [A] US 4664592 A 19870512 - GRZINA ANTHONY [AU]
- [A] WO 02101245 A1 20021219 - WEIR WARMAN LTD [AU], et al
- [A] WO 8802820 A1 19880421 - WARMAN INT LTD [AU]
- [A] AU 420628 B2 19720119
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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2940307 A1 20151104; EP 2940307 B1 20170208; BR 102015007960 A2 20160426; CN 105003458 A 20151028; CN 105003458 B 20180713; RU 2015112285 A 20161020; RU 2015112285 A3 20181029; RU 2688066 C2 20190517; US 2015308446 A1 20151029
DOCDB simple family (application)
EP 15162956 A 20150409; BR 102015007960 A 20150409; CN 201510162991 A 20150408; RU 2015112285 A 20150403; US 201514680212 A 20150407