The invention relates to the technical field of automobile parts, and discloses an oil filling pipe assembly capable of preventing air return, which comprises an oil tank, the top of the oil tank is communicated with an oil steam pipe, the right side wall of the oil tank is communicated with an oil filling pipe, and the end, away from the oil tank, of the oil filling pipe is communicated with an auxiliary pipe. According to the oil filling pipe assembly, through the arrangement of the device, when gasoline is added into an oil tank from the oil filling pipe, the gas return prevention ball can move under the action of the gravity of the gasoline, and when the gas return prevention ball moves, oil steam in the oil filling pipe can enter the oil tank again through the gas conveying hose, so that air returning of oil steam is prevented. When the anti-air-return ball moves out of the oil filling pipe, gasoline falls to the bottom of the oil tank along the right side wall of the oil tank under the action of the arc-shaped drainage plate; thus, by means of the arrangement, the phenomenon that oil steam enters the oil filling pipe and flows back due to the fact that the internal space of the oil tank becomes small during oil filling can be prevented.
本发明涉及汽车零部件技术领域,且公开了一种防回气加油管总成,包括油箱,所述油箱的顶部连通设置有油蒸汽管,所述油箱的右侧壁连通设置有加油管,所述加油管远离油箱的一端连通设置有辅助管。该防回气加油管总成,通过该装置的设置,当汽油从加油管加入到油箱内部时,在油自身重力作用下,可以使防回气球发生移动,在防回气球移动时,可以使加油管内部的油蒸汽通过输气软管重新进入到油箱内部,而防止了油蒸汽出现回气现象,当防回气球移出加油管时,汽油进而在弧形引流板的作用下沿着油箱的右侧壁落到油箱的底部,这样的设置可以防止在加油时,油箱内部空间变小而使油蒸汽进入到加油管的内部出现回流现象。
Oil filling pipe assembly capable of preventing air return
一种防回气加油管总成
2022-02-08
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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European Patent Office | 2022
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