EP 0794390 A2 19970910 - Fan-heater unit
Title (en)
Fan-heater unit
Title (de)
Heizlüfter
Title (fr)
Appareil de chauffage à ventilateur
Publication
Application
Priority
IT PN960013 U 19960304
Abstract (en)
The invention refers to a so-called fan-heater unit, adapted to be included in an apparatus such as a fan-assisted or forced-convection food cooking oven for catering or commercial applications. The unit comprises at least a tangential-type fan (32) mounted with its shaft extending vertically and supported at both its ends by rolling-type journal bearings (44, 46). An electric motor (38), a driving belt (35), driving and driven pulleys (39 and 37, resp.) are used to drive the fan. The main feature of the invention is that the journal bearings (44, 46) are housed in the walls of channels (53, 61), through which a flow of cooling air taken in from the outside ambient is caused to pass. In a preferred manner, the same walls (53, 61) are also the walls of other channels (57, 65) through which cooling air taken in from the outside ambient is caused to flow as well. Even the driving belt (35) and the pulleys (37, 39) are preferably immersed in the flow of cooling air. Advantages: Possibility for moving parts, in particular standard-type rolling journal bearings to be used, without this impairing reliability to any extent. <IMAGE>
IPC 1-7
IPC 8 full level
F24C 15/32 (2006.01)
CPC (source: EP)
F24C 15/006 (2013.01); F24C 15/322 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0794390 A2 19970910; EP 0794390 A3 20020130; EP 0794390 B1 20040519; AT E267364 T1 20040615; DE 69729135 D1 20040624; DE 69729135 T2 20041007; IT 241548 Y1 20010509; IT PN960013 U1 19970904
DOCDB simple family (application)
EP 97102626 A 19970219; AT 97102626 T 19970219; DE 69729135 T 19970219; IT PN960013 U 19960304