A vehicle air-conditioning apparatus includes a first damper opening and closing a first opening, a second damper opening and closing a second opening, and a control unit configured to control the first damper to close or partially open the first opening, and control the second damper to at least partially open the second opening, based on a value related to an outdoor air temperature and a reference value related to the value.

A vehicle air conditioning apparatus includes: a refrigerant circuit in which a compressor, a heat source side heat exchanger, an expansion device, and a load side heat exchanger are connected by pipes; and a controller that performs switching between a heating operation in which refrigerant in the refrigerant circuit circulates and a defrosting operation of the heat source side heat exchanger in which the refrigerant in the refrigerant circuit circulates in a direction opposite to a direction in the heating operation. The controller allows an airflow flowing from the load side heat exchanger into a cabin through a first air outlet in the heating operation, and an airflow flowing from the cabin into the load side heat exchanger through the first air outlet is produced in the defrosting operation of the heat source side heat exchanger.

In order to optimize the failure safety of electrical and electronic components located in an engine compartment of a rail vehicle, which additionally comprises at least one driver's cab, the rail vehicle is operated with an air conditioning system, which is provided to generate overpressure in the engine compartment and to control the climate of the at least one driver's cab. The air conditioning system includes a first air guidance system to introduce fresh air into the at least one driver's cab and a second air guidance system to transmit at least one part of the fresh air introduced into the at least one driver's cab into the engine compartment.

A railcar air conditioning duct according to one aspect which guides air fed from an air conditioner mounted on a railcar. The railcar includes: a duct wall forming an air flow passage which guides air in a car longitudinal direction; and a plurality of through holes lined up in the car longitudinal direction, the through holes being open at the duct wall as air outlet ports through which the air in the air flow passage is blown from the air flow passage toward a passenger room. A ratio of an opening area of one of the through holes to an area of one of a plurality of partial regions formed by dividing, in the car longitudinal direction, an inner surface of a lower wall portion such that in plan view, the regions contain the respective through holes falls within a range of 2.0% or more and 7.5% or less.

An on-track work or rescue vehicle for fire-fighting and/or the rescue of persons in tunnels or subway tubes has a drive which can be operated for at least a limited duration without ambient air. A liquid tank is arranged on the work or rescue vehicle. A fan blower with a fluid spraying device is connected to the liquid tank for producing a spray mist. The work or rescue vehicle is a traction vehicle for pulling or pushing other rail vehicles. A work or rescue vehicle of this type can move to a fire source under the protection of the spray mist blown into the tunnel or subway tube and, if required, pull or push a damaged rail vehicle from a danger zone.

A system for cooling or heating an cabin of an aerial tramway system that includes an ingress liquid reservoir positioned on or inside the cabin, a heat exchanger positioned on or inside the cabin, a liquid chiller that is positioned in a station of the tramway system, and a station liquid reservoir that is positioned in the station and that is equipped with an external liquid valve. The liquid chiller bring liquids to a predetermined or specific temperature that are intended to be streamed into the station liquid reservoir, the station liquid reservoir supplies the liquid that is inside the station liquid reservoir to the ingress liquid reservoir through the external liquid valve and an outlet opening, and the liquids that are supplied to the ingress liquid reservoir are intended to be used for chilling or heating the cabin by the heat exchanger.

A rail-bound vehicle includes an energy storage device having a traction battery and a cooling device for cooling the traction battery using a coolant circulating in at least one coolant circuit. The energy storage device supplies a traction device of the vehicle with electrical energy. At least one air-conditioning device air conditions a passenger compartment of a car of the vehicle using a refrigerant circulating in a refrigerant circuit, and a control device controls the air-conditioning device. The air-conditioning device has a heat exchanger coupling the refrigerant circuit of the air-conditioning device to the coolant circuit of the cooling device of the energy storage device. The control device controls a flow of the refrigerant through the heat exchanger. An energy storage device, an air-conditioning device, an arrangement for cooling a traction battery and a method for controlling the arrangement are also provided.

Air conditioning system is at least partially located in a room comprising at least one seat. The system comprises at least one main supply air inlet opening into the room and arranged at a height of ?0.3 m above a floor of the room, or on the floor, at least one air outlet opening into the room and arranged at a height of <0.3 m below a ceiling of the room, or in the ceiling, and at least one assisting supply air inlet opening into the room and arranged at a height between first and second points of the seat. The first point is the point of the seat having the largest distance to the floor of the room in a direction perpendicular to the floor. The second point is the point of the armrest of the seat having the largest distance to the floor in the direction.

A vehicle air-conditioning apparatus that exhibits improved energy saving performance is provided. In addition, a vehicle with such a vehicle air-conditioning apparatus is provided. The vehicle air-conditioning apparatus includes a cooler provided in a first air passage, and a first air-sending device including a motor and a fan provided in the first air passage, and configured to drive the fan with the motor to thereby generate an airflow that flows into a vehicle interior through the first air passage. At least a part of an outer surface of the motor is located outside the first air passage.

Provided is an air flow regulator for a railway vehicle, which is configured so that the rattling of bars can be prevented without using welding, an affixation member, etc. An intake grill is provided at an intake opening for sucking air from an interior of a railway vehicle. The intake grill comprises a frame, bars (40), and a deformation means. The frame defines an outer edge of the intake opening. The bars (40) are plate-shaped members spanned between portions of the frame to connect the portions to each other. The deformation means elastically deforms the bars (40) to generate reaction force therein.