To provide a variable displacement compressor for enabling power saving operation by itself without using a signal for displacement control from external control equipment.SOLUTION: The variable displacement compressor includes a displacement control valve 70 having a ball valve 700 for controlling a compression displacement with the ball valve 700 opening/closing a communication path 785 so that the suction pressure of a suction chamber 14 becomes a first pressure, a solenoid valve coil 750 for driving the ball valve 700, a discharge pressure sensor 80, and a solenoid valve driving circuit 82 for, when the discharge pressure of a discharge chamber 15 is determined to fall within a predetermined range on the basis of a signal output from the discharge pressure sensor 80, controlling the solenoid valve coil 750 so that the suction pressure of the suction chamber 14 becomes a second pressure higher than the first pressure.SELECTED DRAWING: Figure 2

    【課題】外部制御機器からの容量制御のための信号を用いることなく、単独で省動力運転ができるようにする。【解決手段】ボール弁700を有し、吸入室14の吸入圧力が第1の圧力となるようにボール弁700が連通路785を開閉することで圧縮容量を制御する容量制御弁70と、ボール弁700を駆動する電磁弁コイル750と、吐出圧力センサ80と、吐出圧力センサ80より出力された信号に基づいて吐出室15の吐出圧力が所定範囲内にあることを判定した場合、吸入室14の吸入圧力が第1の圧力より高い第2の圧力となるよう電磁弁コイル750を制御する電磁弁駆動回路82を備える。【選択図】図2


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    Title :

    VARIABLE DISPLACEMENT COMPRESSOR


    Additional title:

    容量可変圧縮機


    Contributors:

    Publication date :

    2019-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS / 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 / F16K VALVES , Ventile



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