An apparatus for protecting negative pressure is provided. The apparatus includes a main flow passage that circulates coolant of a vehicle and includes a section where negative pressure is formed therein. A housing is positioned at the section where the negative pressure of the main flow passage is formed and has a communication aperture that communicates with the main flow passage therein. A negative pressure valve is disposed at the inside of the housing to open or close the communication aperture based on the relationship of an exterior pressure and a valve inside pressure to maintain the valve inside pressure above a predetermined reference value.


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    Title :

    APPARATUS FOR PROTECTING NEGATIVE PRESSURE


    Contributors:

    Publication date :

    2020-10-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F16K VALVES , Ventile / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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