Gruner Ag

Wolfgang Spreitzer

Kevin Dillinger

Wolfgang Moser

A regulating flap reduction gear for an electrically driven regulating flap for regulating a gas or liquid volume flow includes two parallel bearing plates between which gear parts are rotatably arranged. A plurality of spacers keep the two bearing plates at a distance from one another. The plurality of spacers are designed as tabs of one, first bearing plate, which are bent by 90° from the plane of the first bearing plate and have at least one lateral projection. The tabs are inserted with their free tab ends into plug-in openings of the other second bearing plate until their at least one lateral projection rests against the second bearing plate.

Butterfly flap reduction gear

A volumetric flow controller for air conditioning and ventilation systems for displacing a control flap that is adjustably supported in the interior of a flow channel includes a differential pressure sensor for measuring a pressure difference prevailing in the flow channel. A control unit displaces the control flap depending on the pressure measured by the pressure sensor for adjusting a target volumetric flow in the flow channel. A first operating element is for selecting one of a plurality of parameters, in particular of control and/or configuration parameters. A second operating element is for adjusting the value of the respective selected parameter. A display is for displaying the currently set value of the respective selected parameter. The first operating element is a push button, a touch-sensitive switch, a touch-sensitive control panel or a contactless operating element for advancing the respective parameter displayed in the display.

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Wehingen, Germany

Wolfgang Spreitzer