The invention discloses a metal oil filling pipe assembly in the technical field of oil filling pipes. The metal oil filling pipe assembly comprises an oil filling main pipe and a breather pipe, an opening section of the oil filling main pipe is made of a phi 35 * 1.2 metal welded pipe, a tail section of the oil filling main pipe is made of a phi 27.4 * 1.0 metal welded pipe, the opening section is of an eccentric structure with a conical surface on one side, and the tail section is bent into at least three sections. The first section and the opening section are welded to form a first straightline section, the elevation angle of an oil filling port of the opening section is not smaller than 30 degrees when the first straight line section is installed on an automobile body, the length of the first straight line section is larger than 120 mm, the length of the first section of the tail section is larger than 40 mm, and the other sections of the tail section are bent downwards and laterally section by section according to the condition of the automobile body. By designing and verifying the material, the diameter and the bent structure of the oil filling main pipe, effective liquid seal can be formed in the oil filling main pipe when fuel oil passes through the oil pipe, and therefore fuel oil steam is prevented from being discharged along the oil filling main pipe.
本发明公开的是加油管技术领域的一种金属加油管总成,包括加油主管和通气管,所述加油主管的口部段材料采用φ35×1.2的金属焊管,尾部段采用φ27.4×1.0的金属焊管,口部段为一侧带有锥面的偏心结构,所述尾部段弯曲成至少三段,其中第一段与口部段焊接成第一直线段,该第一直线段安装在车身上时口部段的加油口的仰角不小于30°,第一直线段的长度大于120mm,其中尾部段的第一段的长度大于40mm,所述尾部段的其余各段根据车身情况呈向下和向侧面逐段弯曲。本申请通过对加油主管的材料、直径和弯形结构的设计与验证,可使燃油在经过油管的时候能够在加油主管内形成有效液封,从而防止燃油蒸汽顺着加油主管排出。
Metal oil filling pipe assembly
一种金属加油管总成
2021-02-09
Patent
Electronic Resource
Chinese
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 |