EP 1908960 A1 20080409 - Pump with electric motor, submerged in the liquid to be pumped
Title (en)
Pump with electric motor, submerged in the liquid to be pumped
Title (de)
Elektromotorpumpe, die in die zu pumpende Flüssigkeit eingetaucht ist
Title (fr)
Pompe a moteur electrique, immergee dans le fluide a pomper
Publication
Application
Priority
FR 0653986 A 20060928
Abstract (en)
The pump has a casing plunged into a fluid. A centrifugal wheel (28) is provided on the casing. A coaxial electric motor (16) surmounts the centrifugal wheel. A stator is integral with the casing. A rotor is integral with a shaft (22), which is coupled to the centrifugal wheel. An axial balancing system (60) is defined by a fluid circulation circuit provided between the centrifugal wheel and the casing. A fluid cooling circuit (90) is provided for the motor and a rolling bearing. A supply circuit of the axial balancing system is independent of the cooling circuit.
Abstract (fr)
Circuits de circulation auxiliaire du fluide dans la pompe pour l'équilibrage axial et le refroidissement de certaines parties de la pompe. La pompe comporte une zone centrifuge (28) avec un système d'équilibrage axial (60) fluidique et le circuit d'alimentation de ce système d'équilibrage est indépendant du ou chaque circuit de refroidissement fluidique (90, 50, 48, 52, 86) de certains éléments de la pompe tels que le moteur (16) et/ou un roulement (38).
IPC 8 full level
F04D 13/06 (2006.01); F04D 29/04 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP KR US)
F04D 13/02 (2013.01 - KR); F04D 13/06 (2013.01 - KR); F04D 13/0653 (2013.01 - EP US); F04D 29/0416 (2013.01 - EP US); F04D 29/588 (2013.01 - EP US)
Citation (search report)
- [XA] FR 2032189 A5 19701120 - GUINARD POMPES
- [XA] US 2887062 A 19590519 - BENJAMIN CAMETTI, et al
- [XA] EP 0740078 A1 19961030 - WESTINGHOUSE ELECTRIC CORP [US]
- [DA] US 3652186 A 19720328 - CARTER JAMES C
Designated contracting state (EPC)
CH FR GB LI
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1908960 A1 20080409; FR 2906580 A1 20080404; FR 2906580 B1 20090109; JP 2008082318 A 20080410; KR 20080029772 A 20080403; US 2008080988 A1 20080403
DOCDB simple family (application)
EP 07117499 A 20070928; FR 0653986 A 20060928; JP 2006279780 A 20061013; KR 20070072207 A 20070719; US 58016006 A 20061013