EP 2336574 A1 20110622 - A soundproof box for a centrifugal fan
Title (en)
A soundproof box for a centrifugal fan
Title (de)
Schalldichtbehälter für einen Radiallüfter
Title (fr)
Box d'insonorisation pour un ventilateur radial
Publication
Application
Priority
IT TO20091018 A 20091221
Abstract (en)
A soundroof box for a centrifugal fan, comprising a support frame (201) adapted to support a motor (M) of the fan on one side and to support a scroll (C) of the fan on the other side; a soundproof motor covering (20) applied on the support frame and adapted to surround the motor; and a soundproof scroll case (30), separated from the motor covering and adapted to contain the scroll, such a scroll case having a substantially prismatic shape and comprising a pair of terminal walls (301) and a plurality of sidewalls (303) mounted between the terminal walls. The scroll case can be selectively mounted according to a plurality of different angular orientations with respect to the support frame, around the axis of rotation of the fan wheel, which correspond to respective angular orientations of the scroll.
IPC 8 full level
F04D 29/42 (2006.01); F04D 29/62 (2006.01); F04D 29/66 (2006.01)
CPC (source: EP)
F04D 29/4226 (2013.01); F04D 29/626 (2013.01); F04D 29/664 (2013.01); F24F 13/24 (2013.01); F24F 2013/205 (2013.01)
Citation (search report)
- [A] US 4279325 A 19810721 - CHALLIS LOUIS A
- [A] FR 1327918 A 19630524
- [A] GB 741975 A 19551214 - MATTHEWS & YATES LTD
- [A] US 1163543 A 19151207 - ILG ROBERT A [US]
Designated contracting state (EPC)
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 state (EPC)
BA ME
DOCDB simple family (publication)
EP 2336574 A1 20110622; EP 2336574 B1 20120711; IT 1397593 B1 20130116; IT TO20091018 A1 20110622
DOCDB simple family (application)
EP 10015815 A 20101220; IT TO20091018 A 20091221