| 摘要 |
A heating or air-conditioning system is provided for ventilating a passenger cell. The system includes an air-conditioning box in which a heat exchanger is accommodated and at least one air-mixing chamber is formed. The air-mixing chamber has an inflow opening for hot air flowing through the heat exchanger and an inflow opening for cold air flowing around the heat exchanger. The air-mixing chamber also has at least two outflow openings for ventilating the passenger cell. The system also has an air-mixing device which controls the inflow openings. In order to ensure pleasant ventilation for the occupant in every operating mode of the system and with little structural outlay, one outflow opening has arranged on it a restricting element which is intended for restricting the opening cross section and is actuated by the air-mixing device in such a manner that the outflow opening is restricted to the maximum when the hot-air inflow opening is opened up to the maximum and is completely opened up when the cold-air inflow opening is opened up to the maximum.
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