EP 1965081 B1 20091118 - Centrifugal pump with coaxial magnetic coupling
Title (en)
Centrifugal pump with coaxial magnetic coupling
Title (de)
Kreiselpumpe mit koaxialer magnetkupplung
Title (fr)
Pompe centrifuge dotée d'un embrayage magnétique coaxial
Publication
Application
Priority
- EP 07723756 A 20070329
- DE 202006005189 U 20060331
Abstract (en)
[origin: US2010028176A1] The invention relates to a magnetic coupling pump, with the motor-driven part of the magnetic coupling lying radially inward and the radially outward part of the coupling, together with the pump rotor, having a floating fit in the pumped fluid such that the rotating part of the floating bearing is also radially arranged over the outer magnets. The wall of the pump housing can itself be embodied as the stationary part of the floating bearing with the possibility of direct external access (lubrication, sensor mechanism) and an effective convectional cooling. Dry running on operational faults can be avoided by means of the floating bearing arranged far to the outside, as the damaging gas fraction collects in the radial interior of the pump and remaining traces of liquid are continuously driven outwards and thus contribute to bearing lubrication. By means of an additional annular barrier, the loss of residual fluid can be prevented. The disclosed novel floating bearing permits a large volume separating case which itself permits components of the roller bearings of the motor-driven magnetic coupling section so much installation space that the axial installation length of the complete pump can be significantly shortened.
IPC 8 full level
F04D 29/049 (2006.01); F04D 13/02 (2006.01)
CPC (source: EP KR US)
F04D 13/02 (2013.01 - KR); F04D 13/025 (2013.01 - EP US); F04D 13/026 (2013.01 - EP US); F04D 13/027 (2013.01 - EP US); F04D 29/048 (2013.01 - EP US); F04D 29/049 (2013.01 - EP KR US)
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)
US 2010028176 A1 20100204; US 8162630 B2 20120424; AT E449263 T1 20091215; AT E472060 T1 20100715; CN 101415950 A 20090422; CN 101415950 B 20130206; DE 202006005189 U1 20070816; DE 502007002031 D1 20091231; DE 502007004191 D1 20100805; EP 1965081 A1 20080903; EP 1965081 B1 20091118; EP 2002126 A2 20081217; EP 2002126 B1 20100623; ES 2335946 T3 20100406; JP 2009531589 A 20090903; JP 5461172 B2 20140402; KR 101410628 B1 20140620; KR 20080108150 A 20081211; WO 2007112938 A2 20071011; WO 2007112938 A3 20080410
DOCDB simple family (application)
US 29535007 A 20070329; AT 07723756 T 20070329; AT 08003862 T 20070329; CN 200780011895 A 20070329; DE 202006005189 U 20060331; DE 502007002031 T 20070329; DE 502007004191 T 20070329; EP 07723756 A 20070329; EP 08003862 A 20070329; EP 2007002814 W 20070329; ES 08003862 T 20070329; JP 2009501958 A 20070329; KR 20087026741 A 20070329