The invention relates to an internal and external exhaust system of a plastic fuel tank and a connecting method. The internal and external exhaust system comprises the fuel tank, internal exhaust pipes, positioning pins and exhaust joints, the fuel tank is at least provided with an oil pump hole and a fuel tank exhaust hole, the internal exhaust pipe is arranged in the fuel tank, the outer end ofthe internal exhaust pipe is inserted into the fuel tank exhaust hole, and the positioning pin is inserted into the outer end of the internal exhaust pipe from the outer side of the fuel tank and fixedly connected with the wall of the fuel tank. And after the exhaust joint is sleeved on the positioning pin from the outer side of the fuel tank and is fixedly connected with the wall of the fuel tank, the internal exhaust pipe, the positioning pin and the exhaust joint form an exhaust passage. According to the technical scheme, by means of the connection mode among the positioning pin, the internal exhaust pipe and the exhaust connector, compared with the technical scheme that two quick connectors are used for connection in the prior art, connection matching is good, the structure is simple,and cost is saved.

    本发明涉及一种塑料燃油箱内外排气系统及连接方法,包括燃油箱、内部排气管、定位销及排气接头;燃油箱上至少设置有油泵孔和油箱排气孔,内部排气管设置于燃油箱内,内部排气管的外端插入油箱排气孔内,定位销从燃油箱的外侧插入内部排气管的外端并与燃油箱壁固定连接,排气接头从燃油箱的外侧套于定位销上并与燃油箱壁固定连接后,内部排气管、定位销及排气接头形成排气通路。本技术方案通过定位销、内部排气管及排气接头之间的连接方式,与目前在用技术方案中使用两个快插接头进行连接的技术方案相比,不仅连接配合好,而且结构简单,并且节约成本。


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    Title :

    Internal and external exhaust system of plastic fuel tank and connecting method


    Additional title:

    一种塑料燃油箱内外排气系统及连接方法


    Contributors:
    GU HUA (author) / JIANG LIN (author) / LIU LIANG (author) / LYU HAO (author) / FANG MIN (author) / LI TAO (author)

    Publication date :

    2021-02-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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



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