Global Patent Index - EP 3156654 B1

EP 3156654 B1 20191218 - CENTRIFUGAL PUMP FOR CONVEYING A HIGHLY VISCOUS FLUID

Title (en)

CENTRIFUGAL PUMP FOR CONVEYING A HIGHLY VISCOUS FLUID

Title (de)

KREISELPUMPE ZUM FÖRDERN EINER HOCHVISKOSEN FLÜSSIGKEIT

Title (fr)

POMPE CENTRIFUGE POUR CONVOYER UN FLUIDE HAUTEMENT VISQUEUX

Publication

EP 3156654 B1 20191218 (EN)

Application

EP 16189944 A 20160921

Priority

EP 15189840 A 20151014

Abstract (en)

[origin: EP3156654A1] A pump for conveying a highly viscous fluid is proposed comprising a casing (2) with at least a first inlet (3) and an outlet (4) for the fluid, an impeller (5) for conveying the fluid from the inlet (3) to the outlet (4), wherein the impeller (5) is arranged on a rotatable shaft (6) for rotation around an axial direction (A), and comprises a front shroud (7) facing the first inlet (3) of the pump, wherein the casing (2) is provided with a stationary impeller opening (8) for receiving the front shroud (7) of the impeller (5) and having a diameter (D), wherein the front shroud (7) and the stationary impeller opening (8) form a gap (9) having a length (L) in the axial direction (A), wherein the ratio of the length (L) of the gap (9) and the diameter (D) of the impeller opening (8) is at most 0.092.

IPC 8 full level

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)

CPC (source: CN EP KR US)

F04D 1/006 (2013.01 - EP US); F04D 7/04 (2013.01 - CN EP KR US); F04D 29/026 (2013.01 - KR); F04D 29/086 (2013.01 - CN); F04D 29/167 (2013.01 - EP US); F04D 29/2294 (2013.01 - EP US); F04D 29/4273 (2013.01 - CN); F04D 29/4293 (2013.01 - KR US); F04D 29/2266 (2013.01 - EP US)

Citation (opposition)

Opponent : KSB SE & Co. KGaA

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)

EP 3156654 A1 20170419; EP 3156654 B1 20191218; AU 2016231594 A1 20170504; BR 102016021270 A2 20170425; CA 2944035 A1 20170414; CN 106989028 A 20170728; ES 2764114 T3 20200602; KR 20170044003 A 20170424; MX 2016012592 A 20170413; RU 2016138822 A 20180404; RU 2016138822 A3 20200220; SG 10201607732R A 20170530; US 2017107995 A1 20170420

DOCDB simple family (application)

EP 16189944 A 20160921; AU 2016231594 A 20160922; BR 102016021270 A 20160915; CA 2944035 A 20161003; CN 201610857788 A 20160928; ES 16189944 T 20160921; KR 20160120535 A 20160921; MX 2016012592 A 20160927; RU 2016138822 A 20161003; SG 10201607732R A 20160916; US 201615271701 A 20160921