EP 1158174 A3 20050907 - Centrifugal pump with magnetic coupling
Title (en)
Centrifugal pump with magnetic coupling
Title (de)
Kreiselpumpe mit Magnetkupplung
Title (fr)
Pompe centrifuge à accouplement magnétique
Publication
Application
Priority
DE 10024953 A 20000522
Abstract (en)
[origin: US2001043865A1] A pump has a housing plate having a front face and a back face, a housing can fixed to the plate and defining a chamber on the back face thereof, a bearing sleeve in the can fixed to the plate and extending rearward from the back face thereof along an axis, and a rotor shaft extending axially through the sleeve and having a front end and a rear end. Bearings support the rotor shaft in the sleeve for rotation therein about the axis. The shaft has an outer surface spaced a predetermined inner radial distance from an inside surface of the bearing sleeve. An impeller is carried on the rotor-shaft front end in a pump chamber at the front face of the housing plate. A rotor body fixed to the shaft rear end extends axially forward in the can around the bearing sleeve. The rotor body has an outer surface spaced a predetermined outer radial distance from an inside surface of the can. The inner radial dimension is substantially smaller than the outer radial dimension.
IPC 1-7
IPC 8 full level
F04D 13/02 (2006.01); F04D 29/04 (2006.01); F04D 29/041 (2006.01); F04D 29/046 (2006.01); F04D 29/047 (2006.01)
CPC (source: EP US)
F04D 13/026 (2013.01 - EP US); F04D 29/0413 (2013.01 - EP US); F04D 29/0465 (2013.01 - EP US); F04D 29/047 (2013.01 - EP US)
Citation (search report)
- [A] EP 0398175 A1 19901122 - RHEINHUETTE GMBH & CO [DE]
- [A] DE 3715484 A1 19881117 - KLAUS UNION ARMATUREN [DE]
- [A] US 5944489 A 19990831 - VAUGHN PAUL E [US], et al
- [A] GB 922319 A 19630327 - KLAUS FRANZ
- [A] DE 9316897 U1 19940728 - RENNER GMBH [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1158174 A2 20011128; EP 1158174 A3 20050907; EP 1158174 B1 20070314; AT E356937 T1 20070415; AT E486219 T1 20101115; DE 10024953 A1 20011129; DE 50112181 D1 20070426; DE 50115684 D1 20101209; EP 1719914 A2 20061108; EP 1719914 A3 20061115; EP 1719914 B1 20101027; US 2001043865 A1 20011122; US 6554576 B2 20030429
DOCDB simple family (application)
EP 01108334 A 20010403; AT 01108334 T 20010403; AT 06015105 T 20010403; DE 10024953 A 20000522; DE 50112181 T 20010403; DE 50115684 T 20010403; EP 06015105 A 20010403; US 86252601 A 20010522