US 2022/0177013 A1Published application

Air-conditioning system for a rail vehicle (having air-tight or pressure-tight ducting in the air treatment section)

AssigneeFaiveley Transport Leipzip GmbH & Co. KG

InventorsLutz Boeck, Steffen Poser, Erik Hoffmann, Kai Fischer

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Abstract

An air-conditioning system for a vehicle suitable for flammable refrigerants of categories A2, A2L, and A3 is provided. The system is a compact piece of equipment for installation on a vehicle roof and has equipment sections for air treatment and a compressor-liquefier unit, and optionally an outgoing air, an electrical switchbox, and/or silencer. The system is a direct evaporating system in which the air to be conditioned for a passenger area is sealed off within the air-conditioning system such that, in the event of leaks at refrigerant-conducting assemblies, ingress of flammable refrigerant into the interior of the vehicle is prevented. The refrigerant-conducting assemblies and components are located outside the areas where comfort air is conducted, in a separate housing and open to the surroundings.

Claims14

Dependent claims

An air-conditioning system for a rail vehicle, wherein the air-conditioning system is suitable for flammable refrigerants of categories A2, A2L, and A3 and is designed in the form of a compact piece of equipment for installation on a vehicle roof and at least has equipment sections for an air treatment section, a compressor-liquefier equipment, and an outgoing air section, wherein the going air section at least has first interfaces to an outgoing air intake and to an outgoing air opening, and wherein the air treatment section at least has second interfaces to an outside air intake and to an ambient air intake, as well as to a supply-air blow-out, air filter, an evaporator and supply-air fan, a mixed air flap for fresh air or ambient air, supply-air flaps, and a heating register,

wherein refrigerant-carrying assemblies and components of the air-conditioning system are arranged outside areas of comfort ventilation ducting in a separate housing and open to an environment, in that at least the mixed air flap for the fresh air or ambient air, an air filter, the supply-air flaps, a supply-air fan, an evaporator, and a heating register of the air treatment section, as well as the second interfaces gf to the outside air intake or to the ambient air intake, and to a supply-air blow-out arranged within air-tight or pressure-tight ducting in the housing of the air-conditioning system designed in a form of a compact piece of equipment.

Dependencies are inferred from the claim text.