A method for cleaning an air duct, in particular an air duct of a rail vehicle. The need to cool at least one load connected to the air duct is determined, the need to clean the air duct is determined, and a cleaning process of the air duct is initiated if there is no or a low need to cool the at least one load connected to the air duct and if there is a need to clean the air duct. There is also described an air intake system.

An air conditioning apparatus for a railway vehicle includes a compressor to compress a refrigerant, a condenser to condense the compressed refrigerant, an expander to expand the condensed refrigerant, an evaporator to vaporize the expanded refrigerant, and refrigerant piping connecting the compressor, the condenser, the expander, and the evaporator. One of the condenser or the evaporator is an indoor heat exchanger, and the other is an outdoor heat exchanger. At least one of the outdoor heat exchanger or the indoor heat exchanger includes a body including planar heat-transfer members and fins alternately stacked in a thickness direction of the planar heat-transfer members so as to have a stacked structure. Each planar heat-transfer member includes at an interior thereof refrigerant flow paths for flow therethrough of the refrigerant. The refrigerant flow paths are arranged in a direction in which air passes through the fins.

A method for operating an air conditioning system for a vehicle for transporting persons. The air conditioning system, depending on the current number of passengers in a passenger compartment of the vehicle (level of occupation), controls a fresh air volume flow to be introduced into the passenger compartment from outside the vehicle in order to maintain a predefined minimum ambient air quality. The air conditioning system determines a total water mass flow, which is currently produced by the passengers in the passenger compartment, on the basis of air-conditioning measurement values and a current value for at least one operating parameter of the air conditioning system. From the total water mass flow and a predefined value for a water mass flow produced by a single passenger, the system determines the current number of passengers in the passenger compartment. There is also described an air conditioning arrangement for carrying out the method.

An air-conditioning apparatus includes a casing to store a device included in the air-conditioning apparatus, and an access door pivotably supported by the casing via a hinge so as to be pulled downward of the casing to allow access from inside a compartment of the railway vehicle to the device in the casing. A control device to control the air-conditioning apparatus and an inverter device to supply an operational electric current to the air-conditioning apparatus are mounted on a surface of the access door on a side facing an interior space of the casing. Main circuit wiring for supply of power and control wiring for sending and receiving of a control signal are disposed apart from each other, with the access door between the main circuit wiring and the control wiring.

The present disclosure relates to an air-conditioning arrangement for a vehicle. The air-conditioning arrangement includes at least one fluid channel, which has at least two identically designed connection devices. The air-conditioning arrangement includes at least one movable vehicle seat. The present disclosure also relates to a corresponding vehicle having such an air-conditioning arrangement. The at least one vehicle seat includes an air-conditioning component that outputs a temperature-controlled airflow from the vehicle seat. The air-conditioning component can be removably connected to the connection devices of the at least one fluid channel via a movable fluid connection to establish fluid communication between the air-conditioning component and the fluid channel.

An embodiment of the present disclosure provides an interior decoration structure and a railway vehicle with the interior decoration structure. The interior decoration structure is located inside a vehicle body. The interior decoration structure includes: a plurality of interior decoration components, the plurality of interior decoration components being spliced inside the vehicle body in sequence, wherein at least one pair of two adjacent interior decoration components are connected by an inserted-connected structure. The interior decoration structure in the present disclosure solves the problem in the related art that interior decoration parts are prone to unstable connection due to a mounting mode of an interior decoration structure.

A mixer, which forms the core part of an air-conditioning assembly of a rail vehicle, has two inlets, an outlet, and a central region between the inlets and the outlet. A first inlet is connected to a fresh air supply, and a second inlet is connected to a circulating air supply such that fresh air and circulating air reach the central region, where the circulating air is mixed with the fresh air to obtain supply air. The central region is connected to the fresh air inlet via an opening, which forms a transition region between the fresh air inlet and the central region. The transition region contains a profiled section with a wing-shaped cross-section in the transition region where the supplied fresh air generates negative pressure along the transition region, and the circulating air is suctioned into the central region of the mixer with a boost from the negative pressure.

A climate control system for a vehicle is suitable for combustible coolants and is a compact device for installation on a vehicle roof. A directly evaporating system includes an electrical switch box inside a compact climate control device for the vehicle and is partitioned so that, in the event of relevant leakages of assemblies containing coolant, the assembly cannot come into contact with the combustible coolant and no ignitable mixture can occur in these areas. The electrical box is a closed assembly and is operatively connected to an assembly by which air from areas outside the segments containing coolant is guided into the electrical box in such a way that a positive pressure is created in the electrical box to prevent combustible coolant from flowing into the electrical box.

A system for mixing air for a vehicle HVAC (heating, ventilation, air-conditioning) component, includes a first inlet for outdoor air from an exterior space of the vehicle; a first fan in communication with the first inlet to control (only) an air inflow through the first inlet; a second inlet for indoor air from an interior space of the vehicle; and a second fan in communication with the second inlet to control (only) an air inflow through the second inlet. The first fan and the second fan are independently controllable to provide a desired mix of air to the vehicle HVAC component.

A refrigeration arrangement for traction vehicles includes a first closed circuit configured as a compression refrigeration machine containing a refrigerant as a first carrier medium, evaporator and condenser. The evaporator absorbs heat into the first circuit. The condenser transfers heat from the first circuit. The first circuit is coupled, via the evaporator, to a closed second circuit containing a liquid second carrier medium for heat transport. The second circuit, for cooling, takes heat and transfers it to the second carrier medium. The heat is conveyed, by the second carrier medium, to the evaporator for transfer to the first circuit. The first circuit is coupled, via the condenser, to a closed third circuit containing a liquid third carrier medium for heat transport. The third circuit causes heat from the first circuit, transferred into the third circuit by the condenser, to be transferred to surroundings with heat from traction systems.