EP 2536956 B1 20190508 - CENTRIFUGAL ELECTRIC PUMP FOR SUCTION OF AERIFORM FLUIDS WITH SILENCING DEVICE
Title (en)
CENTRIFUGAL ELECTRIC PUMP FOR SUCTION OF AERIFORM FLUIDS WITH SILENCING DEVICE
Title (de)
ELEKTRISCHE ZENTRIFUGALPUMPE ZUR ANSAUGUNG VON GASFÖRMIGEN FLÜSSIGKEITEN MIT EINER DÄMPFERVORRICHTUNG
Title (fr)
POMPE ÉLECTRIQUE CENTRIFUGE POUR ASPIRATION DE FLUIDES AÉRIFORMES POURVUE D'UN DISPOSITIF D'ASSOURDISSEMENT
Publication
Application
Priority
- IT CR20100006 A 20100215
- IB 2011000244 W 20110209
Abstract (en)
[origin: WO2011098898A2] A centrifugal electric pump (1 ) for suction of aeriform fluids comprising an electric motor (2) equipped with a shaft (3); a cylindrical suction box (4) provided with an inlet (5) for the aeriform fluid, one or more outlet openings (6) arranged on the lateral wall (4") thereof and with a closing cover (7); at least one fan (8) driven in movement by said motor (2), arranged for sucking a flow of air (F) from said inlet (5), centrifuge it and discharge it outside said suction box (4) through said one or more outlet openings (6), characterized in that it comprises a silencing device arranged inside said suction box (4), wherein said silencing device comprises an annular deflector (9), placed in front of said outlet openings (6), so as to interrupt the direct path of the flow of centrifuged air (F) between said at least one fan (8) and said outlet openings (6), and arranged for creating a shaped annular damping chamber (10) for the flow of centrifuged air (F), open towards said suction inlet (5).
IPC 8 full level
F04D 29/66 (2006.01)
CPC (source: EP US)
F04D 29/663 (2013.01 - EP US); F04D 29/667 (2013.01 - EP 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
DOCDB simple family (publication)
WO 2011098898 A2 20110818; WO 2011098898 A3 20111201; EP 2536956 A2 20121226; EP 2536956 B1 20190508; IT 1398030 B1 20130207; IT CR20100006 A1 20110816; US 2012308361 A1 20121206
DOCDB simple family (application)
IB 2011000244 W 20110209; EP 11713350 A 20110209; IT CR20100006 A 20100215; US 201113577925 A 20110209