(19)
(11) EP 3 139 046 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
09.08.2017 Bulletin 2017/32

(43) Date of publication A2:
08.03.2017 Bulletin 2017/10

(21) Application number: 16425089.6

(22) Date of filing: 06.09.2016
(51) International Patent Classification (IPC): 
F04D 29/42(2006.01)
 F04D 29/44(2006.01)
(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: 07.09.2015 IT UB201567600 U

(71) Applicant: E.M.C. S.r.l.
60022 Castelfidardo (AN) (IT)

(72) Inventors:
  • Sampaolesi, Gabriele
    60022 Castelfidardo (AN) (IT)
  • Massili, Riccardo
    60022 Castelfidardo (AN) (IT)

(74) Representative: Cioncoloni, Giuliana 
Studio Consulenza Brevetti Cioncoloni S.r.l. Via Castrense, 21
00182 Roma
00182 Roma (IT)

   


(54) ELECTRIC CENTRIFUGAL BLOWER


(57) An electric centrifugal blower (10) comprises an impeller (3) having an orthogonal rotation z axis coincident with the z axis of an xyz coordinate system. The impeller (3) has a diameter D1 and is inside a blower volute (20) that has a discharge mouth (4) parallel to a plane passing through the z axis and perpendicular to the xy-plane. The blower volute (20) has a baffle (6) in the vicinity of the end cross-section (5) of said discharge mouth (4).







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