EP 2466148 B1 20150701 - Sealing system for centrifugal pumps
Title (en)
Sealing system for centrifugal pumps
Title (de)
Dichtungsanordnung für Kreiselpumpen
Title (fr)
Agencement d'étanchéité pour pompes centrifuges
Publication
Application
Priority
DE 102010063108 A 20101215
Abstract (en)
[origin: EP2466148A1] The ring has a composite material including a material component (2) that is formed as a shaping stabilizing component. Another material component of the composite material is formed as a source material (5) that determines a volume change under an influence of moisture. The source material spatially changes a gap-limiting wall surface of the ring, and the former material component includes a geometric shape. The source material is formed with gap width varying properties, and the material components include a different swelling property and/or a different fluid permeability. The source material is selected from biogenic material, wood or thermally treated wood. The composite material including a material component is selected from a polymeric material based on renewable raw materials. An independent claim is also included for a method for constructing device for observing smallest gap width between a rotor and housing of a fluid flow machine.
IPC 8 full level
F04D 29/16 (2006.01); F16J 15/44 (2006.01)
CPC (source: EP)
F04D 29/026 (2013.01); F04D 29/167 (2013.01); F05D 2300/42 (2013.01); F05D 2300/43 (2013.01); F05D 2300/603 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2466148 A1 20120620; EP 2466148 B1 20150701; DE 102010063108 A1 20120621; DK 2466148 T3 20151005; ES 2548053 T3 20151013; HU E027666 T2 20161028
DOCDB simple family (application)
EP 11191330 A 20111130; DE 102010063108 A 20101215; DK 11191330 T 20111130; ES 11191330 T 20111130; HU E11191330 A 20111130