The present invention relates to a fuel tank venting system for enabling fuel vapor gas generated in a fuel tank of a vehicle to pass through a canister to be processed. The fuel tank venting system comprises: a roll over valve (ROV) installed in the fuel tank and controlling internal pressure of the fuel tank by discharging the vapor gas generated in the fuel tank; and a pressure control valve connected to a vapor gas discharge line connected to the roll over valve and selectively blocking the vapor gas discharge line in accordance with generation of negative pressure of the inside of the fuel tank.

    본 발명은 차량의 연료탱크에서 발생한 연료 증발가스를 캐니스터를 통과시켜 처리하는 연료탱크 밴팅 시스템에 있어서, 상기 연료탱크에 설치되고, 상기 연료탱크에서 발생된 증발가스를 상기 캐니스터로 배출시켜 상기 연료탱크의 내부 압력을 조절하는 롤 오버 밸브(Roll Over Valve : ROV) 및 상기 롤 오버 밸브와 연결된 증발가스 배출라인과 연결되고, 상기 연료탱크 내부의 부압 발생에 따라 상기 증발가스 배출라인을 선택적으로 차단하는 압력조절밸브를 포함한다.


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    Title :

    Fuel tank venting system for preventing negative pressure generation of fuel tank


    Additional title:

    연료탱크의 과다 부압 발생을 방지하는 연료탱크 밴팅 시스템


    Contributors:

    Publication date :

    2017-01-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF




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