Air-conditioning assembly for a rail vehicle

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.

1 - 8 . (canceled) 
     
     
         9 . An air-conditioning arrangement for a rail vehicle, the air-conditioning arrangement comprising:
 an air distribution box formed with an air inlet and at least two air outlets for connection to continuing air channels;   said air distribution box having an air division space within said air distribution box configured for dividing an air flow originating from said air inlet over at least two partial air flows;   a throttle device associated with each of said air outlets and disposed between a respective said air outlet and said air division space;   said at least two throttle devices having respective pressure loss coefficients selected to produce a predetermined value for a ratio of air volume flows at said at least two air outlets.   
     
     
         10 . The air-conditioning arrangement according to  claim 9 , wherein the pressure loss coefficients of said at least two throttle devices have a ratio between one another that corresponds to a quadratic relationship of air flow speeds at said at least two air outlets. 
     
     
         11 . The air-conditioning arrangement according to  claim 9 , wherein the pressure loss coefficients of said at least two throttle devices are selected such that a pressure loss in each of said throttle devices corresponds to at least twice a pressure loss in an air channel system connected to the respective said air outlet. 
     
     
         12 . The air-conditioning arrangement according to  claim 9 , wherein the pressure loss coefficients of said at least two throttle devices are in each case greater than respective pressure loss coefficients of a downstream channel system. 
     
     
         13 . The air-conditioning arrangement according to  claim 9 , wherein each of said at least two throttle devices is a perforated plate. 
     
     
         14 . The air-conditioning arrangement according to  claim 13 , wherein said perforated plate has a given plate thickness and perforations with a given hole diameter, and wherein a ratio between the plate thickness and the hole diameter is more than 1.5. 
     
     
         15 . The air-conditioning arrangement according to  claim 9 , which further comprises a sound absorption device disposed between said air inlet and said air division space. 
     
     
         16 . The air-conditioning arrangement according to  claim 15 , wherein said sound absorption device is configured to divide an air flow arriving from said air inlet over a plurality of flow paths arranged beside each other and recombined into a common air flow downstream of said sound absorption device in an air flow direction.