EP 2222962 B1 20171227 - COVER DISK FOR A CLOSED IMPELLER
Title (en)
COVER DISK FOR A CLOSED IMPELLER
Title (de)
DECKSCHEIBE FÜR EIN GESCHLOSSENES LAUFRAD
Title (fr)
PANNEAU DE COUVERTURE POUR UNE ROUE À AUBES FERMÉE
Publication
Application
Priority
- EP 2009001722 W 20090310
- DE 102008013432 A 20080310
Abstract (en)
[origin: WO2009112242A2] The invention relates to a cover disk (1) for a closed impeller of a radial or diagonal turbomachine for the definition of a flow channel, having a wall thickness that has a local maximum along the profile center line of the meridian cross-section of the cover disk between a first and a second front (2, 3) of the cover disk, wherein an outer surface (1.2) of the cover disk facing away from the flow channel has a convex curvature with a radius (R2.2) in the region of said local maximum, the ratio (R2.2/D2) of which to an outside diameter (D2) of the impeller is in a range of 0.05 to 0.5 (0.05 = R2.2/D2 = 0.5).
IPC 8 full level
F04D 29/22 (2006.01); F04D 29/28 (2006.01)
CPC (source: EP US)
F04D 29/2216 (2013.01 - EP US); F04D 29/284 (2013.01 - EP US)
Citation (examination)
- US 2004136825 A1 20040715 - ADDIE GRAEME R [US], et al
- US 2392858 A 19460115 - MCMAHAN KENTON D
- DE 2555101 B1 19761021 - KLEIN SCHANZLIN & BECKER AG
- US 2344444 A 19440314 - JEREMI MALCZEWSKI
Designated contracting state (EPC)
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 SE SI SK TR
DOCDB simple family (publication)
DE 102008013432 A1 20090917; CN 101970883 A 20110209; CN 101970883 B 20131225; EP 2222962 A2 20100901; EP 2222962 B1 20171227; JP 2011509373 A 20110324; JP 5175363 B2 20130403; US 2011008160 A1 20110113; US 8469669 B2 20130625; WO 2009112242 A2 20090917; WO 2009112242 A3 20091105
DOCDB simple family (application)
DE 102008013432 A 20080310; CN 200980109393 A 20090310; EP 09720229 A 20090310; EP 2009001722 W 20090310; JP 2010541757 A 20090310; US 91955309 A 20090310