EP 1724470 A2 20061122 - Centrifugal pump and a static seal thereof
Title (en)
Centrifugal pump and a static seal thereof
Title (de)
Kreiselpumpendichtung
Title (fr)
Système d'étanchéité pour pompe centrifuge
Publication
Application
Priority
FI 20050518 A 20050516
Abstract (en)
The present invention relates to a centrifugal pump and a static seal of the dynamic sealing thereof. The invention especially relates to modifying the attachment of said static seal and a seal cover acting as a counter ring thereof in such a way that, for example, when the static seal wears, the clearance thereof can be adjusted without a need to stop the pump. A characteristic feature of a centrifugal pump in accordance with the invention, comprising, among other things, a pump housing (72), a shaft (12), an impeller arranged on the shaft and a dynamic seal (30, 32) arranged in connection with the shaft (12), and a static seal arranged in connection with the shaft (12) behind the dynamic seal as seen from the impeller, said static seal comprising a flexible seal means (50) on the shaft (12) and a stationary counter ring thereof, is that a seal cover (62) including a stationary counter ring (60) is adjustable in the axial direction of the pump.
IPC 8 full level
F04D 29/12 (2006.01); F04D 29/10 (2006.01); F04D 29/14 (2006.01)
IPC 8 main group level
F04D (2006.01)
CPC (source: EP US)
F04D 29/106 (2013.01 - EP US); F04D 29/126 (2013.01 - EP US); F04D 29/146 (2013.01 - EP 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 NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1724470 A2 20061122; EP 1724470 A3 20081105; BR PI0601781 A 20070109; CA 2546153 A1 20061116; CN 1865710 A 20061122; FI 20050518 A0 20050516; FI 20050518 A 20061117; JP 2006322455 A 20061130; US 2006280599 A1 20061214
DOCDB simple family (application)
EP 06405187 A 20060428; BR PI0601781 A 20060516; CA 2546153 A 20060509; CN 200610082418 A 20060516; FI 20050518 A 20050516; JP 2006134956 A 20060515; US 43537806 A 20060515