The invention relates to the field of sealing structures, in particular to a novel pump opening sealing structure of a fuel tank, which comprises an oil pump flange mounted at a fuel pump opening of the fuel tank, and an L-shaped sealing ring is arranged between the fuel pump opening of the fuel tank and the oil pump flange. The L-shaped sealing ring comprises a vertical sealing part attached to the inner wall of the fuel tank and a horizontal sealing part attached to the outer top wall of the fuel tank, and a locking ring used for pressing the fuel pump flange to the fuel pump opening of the fuel tank is arranged on the circumferential face of the fuel pump opening of the fuel tank. The sealing structure at the fuel pump opening has the advantages of simplicity in processing and assembling and better sealing effect.
本申请涉及密封结构领域,尤其是涉及一种燃油箱的新型泵口密封结构,包括安装于燃油箱燃油泵口处的油泵法兰,所述燃油箱燃油泵口与油泵法兰之间设置有L型密封圈,L型密封圈包括与燃油箱内壁贴合的竖直密封部以及与燃油箱外顶壁贴合的水平密封部,所述燃油箱燃油泵口的周面设置有用于将油泵法兰压紧于燃油箱燃油泵口的锁紧环,具有燃油泵口处的密封结构加工和装配简单、密封效果更佳的优点。
Novel pump opening sealing structure of fuel tank
一种燃油箱的新型泵口密封结构
28.03.2023
Patent
Elektronische Ressource
Chinesisch
Systems and methods for installing and sealing fuel pump in fuel tank
Europäisches Patentamt | 2019
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