The invention discloses a plastic oil filling pipe which is connected with a fuel tank, the plastic oil filling pipe comprises at least one flexible corrugated section, and the wall thickness of a wave crest of the flexible corrugated section is larger than that of a wave trough of the flexible corrugated section. Through the different wall thicknesses of the wave crests and the wave troughs, the oil filling pipe has certain flexibility on the basis that the mechanical strength performance of the oil filling pipe is kept, and oil leakage caused by oil filling pipe breakage in the automobile side face collision process is avoided.
本申请公开了一种塑料加油管,塑料加油管与燃油箱连接,塑料加油管包括至少一个柔性波纹段,柔性波纹段的波峰的壁厚大于柔性波纹段的波谷的壁厚。本申请通过波峰和波谷处的不同壁厚使得加油管在保留其机械强度性能的基础上具有一定的柔性,避免出现汽车侧面碰撞过程中产生的加油管断裂漏油。
Plastic oil filling pipe
一种塑料加油管
2021-08-10
Patent
Electronic Resource
Chinese
Sealing connecting structure and method for plastic oil filling pipe and fuel tank
European Patent Office | 2015
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