F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
98/18
F24F 13/10 (2006.01) F24F 11/04 (2006.01)
Patent
CA 1222409
Abstract Device for simultaneous control of air flow and circula- tion speed for an air conditioning installation with variable air flow. The device includes a pressure-reducing chamber arranged immediately upstream of an air conditioning dif- fuser. It includes a shutter which pivots about an axis and which tends to reduce the useful area of the diffuser in question, under the action of a counterweight. The air introduced into the chamber, by means of a normally open motorized damper, exerts on one of the faces of the shutter, a pressure which tends to oppose the effect of the counterweight and tends to increase the use- ful area of the diffuser. A sensor which serves as a stop during the opening of the shutter, reacts on the motorized damper to tend towards a balance of the forces applied on the shutter, for a particular area of diffusion defined by the position of the sensor. The displacement of the sensor, operated by an at ent thermostat for example, enables the variation of the airflow by changing the free area of circulation. The speed of circulation is practically constant and depends on the counterweight acting on the shutter.
450862
Francel Georges
Mcfadden Fincham
LandOfFree
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