| 摘要 |
<p>The invention relates to an air-conditioning installation for motor vehicles, with an air duct (1), a cooling device (4) and a heating device (6), a water valve (30) for controlling the engine-cooling water supply to the heating device, an air mixing flap (7) for adjusting the quantity ratio of cooled air supplied and not supplied to the heating device (6), a hot-air duct (116), a cold-air duct (115), an additional flap (8) for quantity control of the cooled air flowing and not flowing to the hot-air duct (116), an actuating device (23) for the air mixing flap (7), a temperature sensor for the passenger compartment and a device for controlling the actuating device according to the output of the temperature sensor. Also provided is a sensing device (17) for establishing whether the air mixing flap (7) has reached a predetermined position, in which the cold-air duct (115) is fully open, a connecting member arrangement (201-209) for moving the additional flap (8) out of its closed into its open position, after the air mixing flap (7) has reached the predetermined position, and a control device (12, 24) for the water valve (30) and for preventing engine-cooling water supply to the heating device (6) when the air mixing flap (7) has reached the predetermined position. <IMAGE></p> |
