EP 1767787 A1 20070328 - Submersible pump assembly
Title (en)
Submersible pump assembly
Title (de)
Pumpenaggregat
Title (fr)
Unité de pompe submersible
Publication
Application
Priority
EP 05020868 A 20050924
Abstract (en)
The pump motor stator (16) is enclosed in a sealed housing (18) with the impeller (8) shaft (12) mounted within a central housing (14) with radial bearings (20) and a seal (56) leaving the impeller in spiral housing (6) having inlet holes (62) and an outlet (48) with a back pressure valve (4).
IPC 8 full level
F04D 13/08 (2006.01); F04D 13/06 (2006.01); F04D 29/04 (2006.01)
CPC (source: EP US)
F04D 13/0626 (2013.01 - EP US); F04D 13/0633 (2013.01 - EP US); F04D 13/086 (2013.01 - EP US); F04D 29/0413 (2013.01 - EP US)
Citation (search report)
- [XA] WO 02052156 A1 20020704 - GRUNDFOS AS [DK], et al
- [A] WO 2005052365 A2 20050609 - SUPERCRITICAL SYSTEMS INC [US], et al
- [A] WO 9925055 A1 19990520 - ENO JAMES JOSEPH [US], et al
- [A] DE 8816412 U1 19890810
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 NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1767787 A1 20070328; EP 1767787 B1 20071031; EP 1767787 B2 20161026; AT E377152 T1 20071115; CN 101273201 A 20080924; CN 101273201 B 20130424; DE 502005001847 D1 20071213; US 2009035161 A1 20090205; US 8333575 B2 20121218; WO 2007033817 A1 20070329
DOCDB simple family (application)
EP 05020868 A 20050924; AT 05020868 T 20050924; CN 200680035069 A 20060920; DE 502005001847 T 20050924; EP 2006009113 W 20060920; US 6786806 A 20060920