EP 2622225 B1 20160406 - CENTRIFUGAL PUMP
Title (en)
CENTRIFUGAL PUMP
Title (de)
ZENTRIFUGALPUMPE
Title (fr)
POMPE CENTRIFUGE
Publication
Application
Priority
- AT 16132010 A 20100927
- AT 2011000391 W 20110923
Abstract (en)
[origin: WO2012040752A1] The invention relates to a centrifugal pump for delivering a gaseous suspension, in particular a fibrous stock suspension, having a pump impeller (12) which has at least one opening (15) in the base plate and ribs (16) on its rear side, wherein a separator unit (17) is provided, consisting of a separator housing (25) with a stationary disc (18) and a disc (22) which rotates together with the pump shaft (21), wherein the separator unit (17) is arranged in the pump housing, as viewed in the axial direction onto the pump impeller (12), so as to adjoin the pump impeller (12) on the rear side of the latter, and wherein the separator housing (25) has a gas collecting chamber (31) with gas discharge line (28). It is characterized in that the disc (22) which rotates together with the pump shaft (21) has a closed surface (23) without openings. As a result, the stock loss can be reduced and improved pump stability of the centrifugal pump can be achieved during the delivery of a gaseous suspension, in particular a fibrous stock suspension.
IPC 8 full level
F04D 9/00 (2006.01)
CPC (source: EP US)
F04D 7/045 (2013.01 - US); F04D 9/003 (2013.01 - EP US)
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
DOCDB simple family (publication)
WO 2012040752 A1 20120405; AT 510538 A1 20120415; AT 510538 B1 20130215; BR 112013007344 A2 20160705; BR 112013007344 B1 20201208; CN 103124852 A 20130529; CN 103124852 B 20160921; EP 2622225 A1 20130807; EP 2622225 B1 20160406; ES 2579005 T3 20160803; PT 2622225 T 20160712; RU 2013116378 A 20141110; RU 2561344 C2 20150827; US 2014023485 A1 20140123; US 9784275 B2 20171010
DOCDB simple family (application)
AT 2011000391 W 20110923; AT 16132010 A 20100927; BR 112013007344 A 20110923; CN 201180046591 A 20110923; EP 11779548 A 20110923; ES 11779548 T 20110923; PT 11779548 T 20110923; RU 2013116378 A 20110923; US 201113876383 A 20110923