AIR PASSAGE DEVICE WITH CONTROL ELEMENT Russian patent published in 2009 - IPC F04D29/70 

FIELD: engines and pumps.

SUBSTANCE: invention relates to air passage device, particularly, filtration fan or outlet filter, with or without fan, to be mounted in wall opening, e.g. in housing of heat generation assemblies, for example, distribution cabinets, those accommodating electronic hardware etc. note that proposed device comprises the main housing wit or without fan holder, closing device representing decorative cover with or without molded side walls and with air grid. This grid has plate-like elements and filtration mat arranged between the main housing and the aforesaid grid. The proposed invention allows checking up the fan operating conditions without its dismantling and fan attachment. To this end, a control device is used to set appropriate operating conditions. Note that the said control device comprises, at least one control element and, at least, one control element to define operating conditions.

EFFECT: air passage device allowing checking up its operating conditions without dismantling fan.

8 cl, 16 dwg