Patent ID: 8235777
Filing Date: 2012-08-07
Classification: F24F

Abstract:
1. An apparatus for mixing airstreams and adjusting OA/RA (Outdoor Air/Return Air) content of TA (Total Air) in air distribution systems which comprises a mover ( a ducted mixing box housing fitted with dual damper control ( a damper actuation means of modulating open or closed, allowing both air streams to be throttled and mixed in particular proportions of Outdoor Air primary air quantity and Return Air secondary air quantity at a prescribed point of operation ( wherein said damper actuation and flow-pressure sensor control follow the relationship TA=RA+OA, less any internal losses or possible regain caused by said dampering and mover changes as determined by the prescribed point of operation ( wherein any deviations from the prescribed point of operation are repositioned or offset by systemic dampering and/or applied mover modulation where the changing coefficient of one component adapts to the other's constant and vice versa.