The invention discloses a novel FLVV valve, a combination valve and a CFLVV valve. The novel FLVV valve comprises a valve base and a flange piece, wherein the valve base is fixedly connected to a fueltank through the flange piece, an "O"-shaped sealing ring is further arranged between the valve base and the flange piece, a large valve element assembly and a small valve element assembly are arranged on the valve base, the small valve element assembly is arranged inside the large valve element assembly, a large vent hole and a small vent hole which correspond to the large valve element assemblyand the small valve element assembly are formed in the upper end of the valve base, and sealing is carried out by arranging a sealing assembly. A large valve element is sensitive and timely in closing, and can reduce dynamic leakage to the maximum extent, a small valve element is high in reopening capacity, and can maintain the pressure in an oil tank low, and meanwhile due to the fact that the corresponding vent hole of a small floater is small and located inside a large floater, dynamic leakage generated by the hole corresponding to the small floater is low.

    本发明公开了一种新型的FLVV阀、组合阀及CFLVV阀,包括阀门基座、法兰件,所述的阀门基座通过法兰件固定连接在燃料箱上,所述的阀门基座和所述法兰件之间还设置有“O”形密封圈,所述的阀门基座上设置有大阀芯组件和小阀芯组件,所述的小阀芯组件设置在所述大阀芯组件的内部,所述的阀门基座的上端设置有与所述大阀芯组件和小阀芯组件对应的大通气孔和小通气孔,并通过设置密封组件进行密封;大阀芯比较灵敏,关闭及时,能极大限度地减小动态泄漏,小阀芯重新打开能力较强,能保持油箱内的压力较低,同时小浮子由于对应的通气孔较小,且在大浮子的内部,所以小浮子对应的孔产生的动态泄漏也较低。


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    Titel :

    Novel FLVV valve, combination valve and CFLVV valve


    Weitere Titelangaben:

    一种新型的FLVV阀、组合阀及CFLVV阀


    Beteiligte:
    ZHU XIAOTONG (Autor:in)

    Erscheinungsdatum :

    2021-01-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    F16K VALVES , Ventile / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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