| 摘要 |
A terminal unit for an air handling system and comprised of a housing having a conditioned air inlet for receiving forced conditioned air in the housing. A main outlet opening and a by-pass air outlet opening are provided in the housing. An air flow path is defined between the air inlet and the outlet openings. An air divider gate is slidingly displaceable transverse to the air flow path to deflect air entering the inlet to one or both of the outlet openings. The divider gate has an outlet obstructing rear end and an upstream deflecting face. A linkage assembly is connected to the divider gate to displace the gate across the flow path to simultaneously open one of the outlet openings and close the other, in equal proportions, as desired, while maintaining a substantially constant total outlet opening area as well as maintaining substantially constant inlet air flow conditions. An actuator device, such as an electric motor or a pneumatic system, is connected to the linkage to effectuate the displacement of the divider gate. The force required to displace the divider gate by the actuator device remains substantially constant throughout the displacement of the gate during operating conditions of the air handling system.
|
