The invention discloses a safe-sealing high-strength light-weight automobile oil filling pipe assembly which comprises an oil filling pipe and an air return pipe which both have complex space trends. A straight pipe section is formed at one end of the oil filling pipe, the front section of the straight pipe section is coaxially expanded to form an oil filling end, an oil filling sleeve is welded and installed in a port of the oil filling end through the silicon bronze welding technology, and the lower portion of the oil filling sleeve is shrunk to form an anti-overflow sleeve used for preventing fuel oil from overflowing during oil filling. An oil filling port capable of enabling a gun head of the oil filling gun to extend into the oil filling end is formed in the bottom surface of the anti-overflow sleeve; the oil filling sleeve and the straight pipe section are coaxially arranged, and the oil filling port and the straight pipe section are eccentrically arranged; a plastic protective sleeve is coated at the position where the oil filling sleeve is welded on the peripheral surface of the oiling end; and the air outlet end of the air return pipe is welded and communicated with the oil filling end of the oil filling pipe. The oil filling pipe assembly is high in concentricity, smooth in oiling and capable of being used in cooperation with an oil tank carbon tank, and emission of hydrocarbon molecules during oiling is reduced.
本发明公开了安全密封高强度轻量化汽车加油管总成,包括均具有复杂空间走向的加油管和返气管;加油管的一端成型有一段直管段,该直管段的前段同轴扩径形成有加油端,加油端的端口内采用硅青铜焊接技术焊接安装有加油套,加油套的下部缩径形成有用于防止加油时燃油外溢的防溢套,该防溢套的底面成型有能使加油枪的枪头伸入加油端内的加油口;加油套与直管段为同轴心设置,加油口与直管段为偏心设置;加油端的外周面上位于焊接有加油套的位置处包塑有塑料防护套,返气管的出气端焊接连通在加油管的加油端上。本发明同心度高、加油顺畅,并且能结合油箱碳罐使用,减少加油时碳氢分子的排放。
Safe-sealing high-strength light-weight automobile oil filling pipe assembly
安全密封高强度轻量化汽车加油管总成
2021-04-30
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 |
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