EP 1977112 B1 20100505 - CENTRIFUGAL PUMP HAVING AN AXIAL THRUST BALANCING DEVICE
Title (en)
CENTRIFUGAL PUMP HAVING AN AXIAL THRUST BALANCING DEVICE
Title (de)
KREISELPUMPE MIT AXIALSCHUBAUSGLEICHSEINRICHTUNG
Title (fr)
POMPE CENTRIFUGE A DISPOSITIF DE COMPENSATION DE LA POUSSEE AXIALE
Publication
Application
Priority
- EP 2007002178 W 20070313
- DE 102006011613 A 20060314
Abstract (en)
[origin: WO2007104526A1] The invention relates to a single-stage centrifugal pump having an axial thrust balancing device, wherein a rotor which is connected to a shaft is arranged rotatably in the housing of the centrifugal pump. At least one split-ring seal which is arranged between the rotor and the housing forms a relief space, wherein the relief space is connected to the pressure region of the centrifugal pump by way of a pressure-transmitting connection. In addition, a shaft seal is arranged between the shaft and the housing. In a manner which is known per se, the shaft is provided with at least one roller bearing which absorbs axial forces. A pressure difference between a pressure in the relief space and a location at another pressure in the centrifugal pump housing acts via the connection as a permissible axial force in a constant direction on the rotating pump parts. This axial force acts on the roller bearing as a force in a constant direction which lies below a permissible bearing loading.
IPC 8 full level
F04D 29/04 (2006.01); F04D 29/16 (2006.01)
CPC (source: EP)
F04D 29/0413 (2013.01); F04D 29/0416 (2013.01); F04D 29/167 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006011613 A1 20070920; AR 059835 A1 20080430; AT E467051 T1 20100515; DE 502007003649 D1 20100617; EP 1977112 A1 20081008; EP 1977112 B1 20100505; WO 2007104526 A1 20070920
DOCDB simple family (application)
DE 102006011613 A 20060314; AR P070101029 A 20070314; AT 07711923 T 20070313; DE 502007003649 T 20070313; EP 07711923 A 20070313; EP 2007002178 W 20070313