EP 3303844 B1 20190918 - IMPELLER FOR A CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP
Title (en)
IMPELLER FOR A CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP
Title (de)
LAUFRAD FÜR EINE KREISELPUMPE UND KREISELPUMPE
Title (fr)
ROUE POUR UNE POMPE CENTRIFUGE ET POMPE CENTRIFUGE
Publication
Application
Priority
- DE 102015007171 A 20150603
- EP 2016062534 W 20160602
Abstract (en)
[origin: WO2016193387A1] The invention relates to an impeller for a centrifugal pump (1), comprising a housing (2), an inlet (3), an outlet (4), and a chamber (13) which is provided in the housing (2) in fluidic connection with the inlet (3) and the outlet (4). The impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) is received in the chamber (13) in a rotatable manner, and a gap (24) is provided between a rear face (22, 422, 522, 622, 722, 822, 922, 1022, 1122, 1222) of the impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) and a housing wall (23). The aim of the invention is to improve the compatibility with media which form deposits. This is achieved in that the impeller (14, 414, 514, 614, 714, 814, 914, 1014, 1114, 1214) has at least one scraper (25, 425, 525, 625, 725, 825, 925, 1025, 1125, 1225) which is bonded to the impeller (14, 414, 514, 614, 714, 814. 914, 1014, 1114, 1214) at a first location (444, 544, 644, 744, 944, 1044, 1144) and a second location (445, 545, 645, 745, 945, 1045, 1 145). The first location (444, 544, 644, 744, 944, 1044, 1144) and the second location (445, 545, 645, 745, 945, 1045, 1145) are spaced apart, and a cleanable intermediate space (548, 648, 748, 948, 1048, 1148) is produced in the spacing between the scraper (25, 425, 525, 625, 725, 825, 925, 1025, 1125, 1225) and the rear face (22, 422, 522, 622, 722, 822, 922, 1022, 1122).
IPC 8 full level
F04D 7/04 (2006.01); F04D 29/22 (2006.01)
CPC (source: CN EP US)
F04D 7/045 (2013.01 - CN EP US); F04D 29/2288 (2013.01 - CN EP US); F04D 29/2294 (2013.01 - EP US); F04D 29/245 (2013.01 - US); F04D 29/2266 (2013.01 - US); F05B 2240/30 (2013.01 - EP US); F05B 2250/15 (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)
DE 102016110224 A1 20161208; DE 102016110224 B4 20200312; CN 107995939 A 20180504; CN 107995939 B 20200121; EP 3303844 A1 20180411; EP 3303844 B1 20190918; ES 2756602 T3 20200427; PL 3303844 T3 20200331; US 2018163741 A1 20180614; WO 2016193387 A1 20161208
DOCDB simple family (application)
DE 102016110224 A 20160602; CN 201680032127 A 20160602; EP 16726585 A 20160602; EP 2016062534 W 20160602; ES 16726585 T 20160602; PL 16726585 T 20160602; US 201615579035 A 20160602