Abstract: An air-conditioning assembly for a rail vehicle includes an air distribution box, which has an air inlet and at least two air outlets for connecting to outgoing air ducts. A throttling device is associated with each air outlet. The throttling device is arranged between the air outlet and an air division chamber inside the air distribution box. In the air division chamber the air flow coming from the air inlet is divided into at least two partial air flows. Pressure loss factors of the at least two throttling devices are chosen in such a way that a specified value results for a ratio of volumetric air flows at the at least two air outlets.

Abstract: A device for active regulation of the internal vehicle pressure in a rail vehicle includes an aeration device for increasing the internal pressure in the rail vehicle, a ventilation device for reducing the internal pressure in the rail vehicle, and a measuring device for measuring the internal pressure in the rail vehicle. A control device is connected for signaling purposes at least to the ventilation device in order to reduce the internal pressure and to the measuring device, and the ventilation device for reducing the internal pressure can be controlled by the control device according to the internal pressure determined by the measuring device.