EP 2420678 B1 20150225 - Centrifugal pump
Title (en)
Centrifugal pump
Title (de)
Kreiselpumpe
Title (fr)
Pompe centrifuge
Publication
Application
Priority
EP 10008738 A 20100821
Abstract (en)
[origin: EP2420678A1] A centrifugal pump having at least one impeller (32), a pump housing and an electrical motor. The pump has a Q-H pump curve (4) having a head Ho (28) at zero flow and a head H ref (30) corresponding to the highest hydraulic power and that H ref (30) is greater than Ho (28). The pump has low energy consumption rate, especially at low flow corresponding to the conditions in which the pump is operated most of the time. Thus, the pump according to the invention is less energy consuming than the prior art centrifugal pumps.
IPC 8 full level
F04D 15/00 (2006.01); F04D 25/06 (2006.01); F04D 29/22 (2006.01); F04D 29/24 (2006.01)
CPC (source: EP US)
F04D 13/06 (2013.01 - US); F04D 15/0033 (2013.01 - EP US); F04D 25/06 (2013.01 - US); F04D 29/2261 (2013.01 - EP US); F04D 29/245 (2013.01 - EP US)
Citation (opposition)
Opponent : Sulzer Management AG
- GB 2005768 A 19790425 - PLESSEY CO LTD
- CN 1210705 A 19990317 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- CN 200952491 Y 20070926 - XIXIA VEHICLE WATER PUMP CO LT [CN]
- SU 1581865 A1 19900730 - VNII GORNOJ MEKH [SU]
- EP 0551550 A1 19930721 - SIEMENS AG [DE]
- US 2007132330 A1 20070614 - FEI RENYAN W [CN], et al
- WO 9314450 A1 19930722 - KSB AG [DE]
- WO 2010046031 A1 20100429 - KSB AG [DE], et al
- GB 2005768 A 19790425 - PLESSEY CO LTD
- CN 1210705 A 19990317 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- CN 200952491 Y 20070926 - XIXIA VEHICLE WATER PUMP CO LT [CN]
- SU 1581865 A1 19900730 - VNII GORNOJ MEKH [SU]
- EP 0551550 A1 19930721 - SIEMENS AG [DE]
- US 2007132330 A1 20070614 - FEI RENYAN W [CN], et al
- WO 9314450 A1 19930722 - KSB AG [DE]
- WO 2010046031 A1 20100429 - KSB AG [DE], et al
- "Hocheffiziente Heizungsumwälzpumpe Rio-Eco. Baureihenheft", KSB AKTIENGESELLSCHAFT, 25 May 2010 (2010-05-25), pages 1 - 22, XP055265879
- KSB AKTIENGESELLSCHAFT,: ""Hocheffiziente Heizungsumwälzpumpe Rio-Eco" Baureihenheft", 25 May 2010 (2010-05-25), pages 1 - 22, XP055265879
- C. PFLEIDERER: "Die Kreiselpumpen", 1932, VERLAG VON JULIUS SPRINGER, pages: 175 - 191, XP055253545
- G. KERGOURLAY ET AL.: "Influence of Splitter Blades on the Flow Field of a Centrifugal Pump: Test-Analysis Comparison", INTERNATIONAL JOURNAL OF ROTATING MACHINERY, vol. 2007, pages 1 - 13, XP055242078
Opponent : sulzer management ag
- GB 2005768 A 19790425 - PLESSEY CO LTD
- CN 1210705 A 19990317 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- CN 200952491 Y 20070926 - XIXIA VEHICLE WATER PUMP CO LT [CN]
- SU 1581865 A1 19900730 - VNII GORNOJ MEKH [SU]
- EP 0551550 A1 19930721 - SIEMENS AG [DE]
- US 2007132330 A1 20070614 - FEI RENYAN W [CN], et al
- WO 9314460 A2 19930722 - KIKUKAWA TOMIKO [JP]
- WO 2010046031 A1 20100429 - KSB AG [DE], et al
- "?Hacheffiziente Heizungsumwälzpumpe Rio-Eco"", BAUREIHENHEFT, KSB AKTIENGESELLSCHAFT FRANKENTHAL, 25 May 2010 (2010-05-25), XP055242073
- C. PFLEIDERER ET AL., ?DIE KRELSELPUMPEN, 1932, pages 175 - 191, XP055253545
- G. KERGOURLAY ET AL.: "?Influence of Splitter Blades on the Flow Field of a Centrifugal Pump", INTERNATIONAL JOURNAL OF ROTATING MACHINERY, vol. 2007, no. 85024, 2007, pages 1 - 13, XP055242078
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
DOCDB simple family (publication)
EP 2420678 A1 20120222; EP 2420678 B1 20150225; EP 2420678 B2 20180815; CN 103069171 A 20130424; CN 103069171 B 20160803; RU 2013112610 A 20140927; RU 2556153 C2 20150710; US 2013216407 A1 20130822; WO 2012025289 A1 20120301
DOCDB simple family (application)
EP 10008738 A 20100821; CN 201180040484 A 20110711; EP 2011061741 W 20110711; RU 2013112610 A 20110711; US 201113818166 A 20110711