Automobile fuel tank valve body arrangement method and structure

• Main Authors: BU JIANGHUA, GUO YAWEI, DENG XIANG
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to an automobile fuel tank valve body arrangement method and structure. The valve body arrangement structure comprises a fuel tank upper shell, a safety valve, an evaporation pipe, an oil discharge valve and an oil discharge pipe. The oil tank upper shell is provided with an air vent, the safety valve is installed on the inner wall of the oil tank upper shell, and the evaporation pipe is communicated with the air vent and the safety valve. A sinking groove is further formed in the oil tank upper shell, and the evaporation pipe passes through the sinking groove to form a sinking section; the oil discharge valve is mounted on the inner wall of the oil tank upper shell; the oil discharge pipe is communicated with the oil discharge valve and the sinking section; the oil drain valve is arranged to communicate with the sinking section of the evaporation pipe, when the liquid level in the fuel tank descends to a certain height, fuel accumulated in the sinking section flows back into the fuel ta