Title:
ELECTRICAL MACHINE, FAN, VENTILATOR.
Document Type and Number:
WIPO Patent Application WO/2014/191902
Kind Code:
A3
Abstract:
An axial flow fan (200) having an axis (R) of rotation comprises a central hub (201 ) comprising a base wall (202) and a lateral wall (203) which projects from the base wall (202) to form a cup-shaped structure, a plurality of blades (204) each fixed to the central hub (201 ) and comprising a leading edge (205) and a trailing edge (206), a plurality of extractors (207) of a fluid which are associated with the base wall (202) for conveying air from the inside of the cup-shaped structure to the outside of the cup- shaped structure through the base wall (202).
Inventors:
DE FILIPPIS PIETRO (IT)
Application Number:
PCT/IB2014/061727
Publication Date:
January 07, 2016
Filing Date:
May 26, 2014
Export Citation:
Assignee:
SPAL AUTOMOTIVE SRL (IT)
International Classes:
F04D25/08; H02K7/14; F04D29/32; F04D29/58; H02K9/22
Domestic Patent References:
| WO2009019562A2 | 2009-02-12 | |||
| WO2008146155A2 | 2008-12-04 |
Foreign References:
| US20080130169A1 | 2008-06-05 | |||
| US20090196744A1 | 2009-08-06 | |||
| US6379116B1 | 2002-04-30 |
Attorney, Agent or Firm:
PUGGIOLI, Tommaso (Via di Corticella 87, Bologna, IT)
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