EP 3581803 B1 20220302 - CENTRIFUGAL PUMP WITH ADJUSTMENT OF THE CLEARANCE BETWEEN COVER AND IMPELLER
Title (en)
CENTRIFUGAL PUMP WITH ADJUSTMENT OF THE CLEARANCE BETWEEN COVER AND IMPELLER
Title (de)
KREISELPUMPE MIT REGELUNG DES SPALTES ZWISCHEN DECKEL UND LAUFRAD
Title (fr)
POMPE CENTRIFUGE AVEC RÉGLAGE DE L'INTERSTICE ENTRE COUVERCLE ET ROUET
Publication
Application
Priority
LU 100831 A 20180612
Abstract (en)
[origin: RU2707238C1] FIELD: pumps building.SUBSTANCE: centrifugal pump includes housing (1). In housing (1) there are impeller (2) and suction branch pipe (4) forming suction hole and made with possibility of insertion into bottom plate (3) of pump housing. Branch pipe (4) is installed with possibility of axial movement on bottom plate (3) due to the fact that both suction branch pipe (4) and bottom plate (3) have at least one surface (6) turned relative to bottom plate (3), by which they adjoin each other so that due to scrolling of suction branch pipe (4) the distance between impeller (2) and suction branch pipe (4) can vary, and / or on radial circumferential surface (12) of suction branch pipe (4) there is sealing collar (14), in inserted state, adjacent to bottom plate (3).EFFECT: inventions are aimed at maintenance of high efficiency of pump during long-term operation.14 cl, 5 dwg
IPC 8 full level
F04D 29/62 (2006.01)
CPC (source: EP RU)
F04D 15/0033 (2013.01 - RU); F04D 29/167 (2013.01 - RU); F04D 29/622 (2013.01 - EP RU); F04D 29/628 (2013.01 - EP RU)
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 3581803 A1 20191218; EP 3581803 B1 20220302; EP 4001665 A1 20220525; EP 4001665 B1 20230823; HU E058654 T2 20220928; HU E063402 T2 20240128; LU 100831 B1 20191212; PL 3581803 T3 20220502; PL 4001665 T3 20231030; RU 2707238 C1 20191125
DOCDB simple family (application)
EP 19178039 A 20190604; EP 21208695 A 20190604; HU E19178039 A 20190604; HU E21208695 A 20190604; LU 100831 A 20180612; PL 19178039 T 20190604; PL 21208695 T 20190604; RU 2019116662 A 20190529