| 摘要 |
PURPOSE:To automatically make uniform the temperature inside a car by controlling air quantity blown out of nozzles of divergent ducts provided in plural number in accordance with the temperature at an appropriate point inside the car. CONSTITUTION:A blowout air quantity adjusting means A is provided with a sensor 33 which is to sense off the temperature in the neighborhood of a nozzle of a divergent duct 31 and a negative pressure working member 35 which is to input the signal from this sensor 33 to an autoamplifier 21 and to regulate the opening degree of an opening/shutting door 34, provided in said divergent duct, by the output signal of this autoamplifier 21. This negative pressure working member 35 uses an actuator 37 which is in communication with a transducer 36 and operates the opening/shutting door 34 with a link interposed by the aid of action of a diaphragm 37a. The transducer 36 has an exciting coil 38 which is energized by the current from the autoamplifier 21, and a valve rod 39 moves in this coil 38 to put the negative pressure source 26 into communication with the atmosphere through a valve 40. |
