To enable a heating capability of hot gas heating to be adjusted when the heating capability cannot be adjusted only by controlling a rotation speed of a compressor.SOLUTION: A vehicular air conditioner is provided with a control device that controls a refrigerant circuit and an air conditioning unit. The refrigerant circuit has a hot gas bypass that decompresses at least a portion of a refrigerant compressed by a compressor and returns the portion to the compressor without going through an indoor heat exchange part and an external heat exchange part. The control device can execute hot gas heating operation by which the refrigerant is prevented from absorbing heat in the external heat exchange part and heat of the portion of the refrigerant compressed by the compressor is radiated in the indoor heat exchange part to heat a vehicle interior, which opens and closes at least ether of a decompressing part arranged between the indoor heat exchange part and the compressor and a hot gas decompressing part arranged in the hot gas bypass, while executing the hot gas heating operation.SELECTED DRAWING: Figure 6

    【課題】圧縮機の回転数制御のみで対応できない場合のホットガス暖房の暖房能力調整を可能にする。【解決手段】車両用空調装置は、冷媒回路及び空調ユニットを制御する制御装置を備え、冷媒回路は、圧縮機で圧縮した冷媒の少なくとも一部を、室内熱交換部及び外部熱交換部を経由することなく減圧して圧縮機に戻すホットガスバイパスを有し、制御装置は、外部熱交換部において冷媒に吸熱させず、圧縮機で圧縮した冷媒の一部を室内熱交換部で放熱させて車室内を暖房するホットガス暖房運転を実行可能であり、ホットガス暖房運転の実行中に、前記室内熱交換部から前記圧縮機までの間にある減圧部、又は、前記ホットガスバイパスに設けられたホットガス減圧部の少なくとも一方の開閉を行う。【選択図】図6


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    Titel :

    VEHICULAR AIR CONDITIONER


    Weitere Titelangaben:

    車両用空調装置


    Beteiligte:
    OKADA MIZUKI (Autor:in) / HUANG YUNSHENG (Autor:in) / MASHIMA YUTA (Autor:in) / ZHANG HONGMING (Autor:in)

    Erscheinungsdatum :

    10.05.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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