(19)
(11) EP 3 247 910 A1

(12)

(43) Date of publication:
29.11.2017 Bulletin 2017/48

(21) Application number: 16740316.1

(22) Date of filing: 18.01.2016
(51) International Patent Classification (IPC): 
F04D 29/22(2006.01)
 F04D 29/28(2006.01)
(86) International application number:
PCT/JP2016/051948
(87) International publication number:
WO 2016/117709 (28.07.2016 Gazette 2016/30)
(84) Designated Contracting States:
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
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 19.01.2015 IT VI20150012

(71) Applicant: Ebara Corporation
Ohta-ku, Tokyo 144-8510 (JP)

(72) Inventors:
  • CIROLINI, Andrea
    38023 Cles (Trento) (IT)
  • MAULE, Mauro
    38023 Cles (Trento) (IT)
  • ARMIENTO, Marco
    38023 Cles (Trento) (IT)

(74) Representative: Schmidbauer, Andreas Konrad 
Wagner & Geyer Partnerschaft Patent- und Rechtsanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)

   


(54) CENTRIFUGAL IMPELLER FOR FLUID-OPERATED PUMPS, AND METHOD FOR MANUFACTURING THE IMPELLER