Zehnder Group International Ag

Martijn Haddeman

Erik Boxum

Christian Hirsch

Remco Walta

Arie Veldhuijzen

Peter Willering

Elmer Curcho Mendivelso

Paul Oteman

Rene Brink

Eric Arends

The invention relates to an air diffuser device () for ventilating rooms and to be installed in a ventilation duct opening in a wall or ceiling of a room, said air diffuser device () comprising a baffle element () having a central region () and a peripheral region () with a peripheral edge () for deviating at least a part of a ventilation air flow entering said room through said ventilation duct opening in a flow direction with an air flow component parallel to said wall or ceiling. The baffle element () comprises a plurality of slits or grooves () each extending from the central region () of said baffle element () to the peripheral region () of said baffle element (). In addition, the peripheral edge () of said baffle element () has a plurality of radially extending indentations () spaced from each other along the periphery of said baffle element ().

Air diffuser device for ventilating rooms

Air filter for ventilation equipment

The invention relates to a heat exchanger blockand to a heat recovery ventilation unitcomprising such a heat exchanger block. In the heat exchanger block, the individual flow cross-section (Q) of flow passages of said plurality of first air flow passages (AFP) in said parallel flow region (PF) and the individual flow cross-section (Q) of flow passages of said plurality of second air flow passages (AFP) in said parallel flow region (PF) gradually, preferably linearly, decrease along a straight line (x-x) perpendicular to the parallel air flow passages (AFPand AFP) and from said first wall (W) to said second wall (W) of the block.

Heat exchanger block and heat recovery ventilation unit comprising it

Housings for air conditioning apparatus

Air conditioning apparatus

Growing community of inventors

Heerde, Netherlands

Martijn Haddeman