CENTRIFUGAL FAN WITH AN ANTI-VORTEX FIN FOR REDUCING VIBRATIONS AND NOISE LEVELS - Patent 2742244

(19)

(11)

EP 2 742 244 A2

(12)

(88)	Date of publication A3:
	11.04.2013

(43)	Date of publication:
	18.06.2014 Bulletin 2014/25

(21)	Application number: 12769490.9

(22)	Date of filing: 10.08.2012

(51)

International Patent Classification (IPC):

F04D 29/42^(2006.01)

F04D 29/66^(2006.01)

(86)	International application number:
	PCT/IB2012/054087

(87)	International publication number:
	WO 2013/021366 (14.02.2013 Gazette 2013/07)

(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

(30)

Priority:

11.08.2011 IT FI20110177

(71)	Applicant: Enel Ingegneria e Ricerca S.p.A.
	00198 Roma (IT)

(72)	Inventor:
	TIRIBUZI, Stefano I-56127 Pisa (IT)

(74)	Representative: Brazzini, Silvia et al
	Società Italiana Brevetti S.p.A. Corso dei Tintori, 25 50122 Firenze 50122 Firenze (IT)

(54)	CENTRIFUGAL FAN WITH AN ANTI-VORTEX FIN FOR REDUCING VIBRATIONS AND NOISE LEVELS