| 摘要 |
PURPOSE:To sense a required ventilating amount quickly and ventilate a necessary amount of air properly at all times by a method wherein Karman's vortexes are generated in an air duct and a discharging air volume from the air duct and/or a room temperature are controlled by an information outputted from a device, detecting the Karman vortexes and measuring the flow amount and the speed of the air in the air duct. CONSTITUTION:The Karman's vortexes 6...6 are generated in the airflow by providing a column-like obstacle 5 in the branched air duct 3B while the control device 9, detecting the karman's vortexes 6...6 by supersonic wave transmitter and receiver 7A, 7B and inputting the informations obtained by the device 7, measuring the flow amount and the speed of the air, as well as the information obtained from the device 7 and temperature sensors 8 provided in each rooms, is provided. Further, the control unit 9 is constituted so as to control the driving motors 11 of dampers 10, opening and closing each branched air ducts, and input the informations obtained from the device 7, measuring the flow amount and the speed of the air, and the temperature sensors 8 into the control unit 12 of the air-conditioning machine. |
