EP 1961965 A2 20080827 - Vortex impeller for centrifugal fluid-dynamic pumps
Title (en)
Vortex impeller for centrifugal fluid-dynamic pumps
Title (de)
Wirbellaufrad für fluiddynamische Zentrifugalpumpen
Title (fr)
Roue vortex pour pompes centrifuges à fluides dynamiques
Publication
Application
Priority
IT MI20070329 A 20070221
Abstract (en)
Vortex impeller (10) for centrifugal fluid-dynamic pumps, provided with a central eye (16), an outer circumferential edge (18) and a plurality of blades (12, 12') having respective starting points (14, 14') arranged at said eye (16) of the impeller (10), each pair of contiguous blades (12, 12') defining a channel (22) arranged between them, characterised in that each of said blades (12, 12') has a profile in plan consisting of a plurality of arcs of circumference (24, 24', 24'') arranged in sequence and joined together, pairs of consecutive arcs of circumference (24, 24'; 24', 24'') having different bending radii.
IPC 8 full level
F04D 29/24 (2006.01)
CPC (source: EP)
F04D 29/242 (2013.01); F04D 29/245 (2013.01)
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 MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1961965 A2 20080827; EP 1961965 A3 20100331; IT MI20070329 A1 20080822
DOCDB simple family (application)
EP 08151673 A 20080220; IT MI20070329 A 20070221