An air-conditioning apparatus for a railway vehicle includes a plurality of refrigerant circuits each including a compressor, a first heat exchanger, an expansion device, and a second heat exchanger that are connected to each other by pipes; an inverter connected to an auxiliary power supply device of a railway vehicle and configured to control a frequency of the compressor; a switching unit configured to switch between wiring connection for supplying power to the compressor via the inverter and wiring connection for directly supplying power from the auxiliary power supply device to the compressor; and a controller configured to control a switching operation of the switching unit in such a manner that, when an air conditioning load of a boarding space of the railway vehicle is higher than a load threshold value, wiring for directly supplying power from the auxiliary power supply device to at least one of the compressors of the plurality of refrigerant circuits is established.


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    Title :

    RAILROAD CAR AIR-CONDITIONING APPARATUS


    Additional title:

    EISENBAHNWAGENKLIMATISIERUNGSVORRICHTUNG
    APPAREIL DE CLIMATISATION DE WAGON DE CHEMIN DE FER


    Contributors:

    Publication date :

    2021-08-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F24F Klimatisierung , AIR-CONDITIONING / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



    RAILROAD CAR AIR-CONDITIONING APPARATUS

    MORIYAMA TAKASHI / KOBAYASHI RYOSUKE / MURAKAMI HIROKI et al. | European Patent Office | 2018

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    RAILROAD VEHICLE AIR CONDITIONING APPARATUS

    FUJIKI KATSUHIRO | European Patent Office | 2023

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    Railroad air conditioning

    Bucy, J.A. | Engineering Index Backfile | 1945


    Air conditioning in railroad cars

    Pla | Engineering Index Backfile | 1937


    Air conditioning of railroad equipment

    Beach, R.L. | Engineering Index Backfile | 1932