EP 4283137 A1 20231129 - CENTRIFUGAL PUMP
Title (en)
CENTRIFUGAL PUMP
Title (de)
ZENTRIFUGALPUMPE
Title (fr)
POMPE CENTRIFUGE
Publication
Application
Priority
EP 22175498 A 20220525
Abstract (en)
The present invention relates to a centrifugal pump (1) with semi-open impeller (2) having a back plate (3), a number of blades (4) provided onto the back plate (3), and a front shroud (5, 7) arranged upstream of the impeller (2) at a defined distance above the blades (4), wherein onto the face of the front shroud (5, 6) directed towards the blades (4) a number of macroscopic grooves (5, 7) is provided for improved mixing and transport of gas-liquid two-phase flows.
IPC 8 full level
F04D 31/00 (2006.01); F04D 1/00 (2006.01); F04D 7/04 (2006.01); F04D 29/16 (2006.01); F04D 29/22 (2006.01); F04D 29/42 (2006.01); F04D 29/44 (2006.01)
CPC (source: EP)
F04D 1/00 (2013.01); F04D 29/162 (2013.01); F04D 29/2288 (2013.01); F04D 29/426 (2013.01); F04D 29/445 (2013.01); F04D 31/00 (2013.01)
Citation (applicant)
- DE 3544566 A1 19860703 - ROLLS ROYCE [GB]
- GULICH, J.F.: "Centrifugal pumps", 2008, SPRINGER
- MANSOUR, M.PARIKH, T.ENGEL, S.WUNDERLICH, B.THEVENIN, D.: "Investigation on the influence of an inducer on the transport of single and two-phase air-flows by centrifugal pumps, in: 48thTurbomachinery & 35th Pump Symposia", 2019
- MANSOUR, M.WUNDERLICH, B.THEVENIN, D.: "Effect of tip clearance gap and inducer on the transport of two-phase air-water flows by centrifugal pumps", EXP. THERM FLUID SCI., vol. 99, 2018, pages 487 - 509, XP085470945, DOI: 10.1016/j.expthermflusci.2018.08.018
- PARIKH, T.MANSOUR, M.THEVENIN, D.: "Investigations on the effect of tip clearance gap and inducer on the transport of air-water two-phase flow by centrifugal pumps", CHEM. ENG. SCI., vol. 218, 2020, pages 115554, XP086135546, DOI: 10.1016/j.ces.2020.115554
Citation (search report)
- [XI] JP H094585 A 19970107 - TORISHIMA PUMP MFG CO LTD
- [I] US 2017016457 A1 20170119 - JAPIKSE DAVID [US]
- [A] US 2012051897 A1 20120301 - DAVIS MARK ALAN [US], et al
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22175498 A 20220525