A drive control device performs a mode change with a constant current between a first mode in which an opening degree of a refrigerant passage is changed in a first flow region where a flow rate of refrigerant flowing through the refrigerant passage is lower than or equal to a predetermined value and a second mode in which the opening degree of the refrigerant passage is changed in a second flow region where the flow rate of refrigerant flowing through the refrigerant passage is higher than the predetermined value. The drive control device increases a value of the constant current at the mode change to be larger than a value of a constant current when the opening degree of the refrigerant passage is changed in the first mode.


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    Title :

    Expansion valve device


    Contributors:

    Publication date :

    2017-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16K VALVES , Ventile / 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 / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS



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