Browse Publications Technical Papers 2019-01-0800

Simulation and experimental study of filler pipe of automobile fuel tank based on ORVR Technology 2019-01-0800

A filler pipe of vechile fuel tank has been simulated and optimized for refueling smoothness which is based on on-board refueling vapor recovery(ORVR). Both liner lining of filler pipe (4 cases)and straight pipe section at the bottom of refueling pipe(4 cases) have been sthdied. The results show that extending the end of the inner lining to the first elbow of the filler pipe can effectively control the phenomenon of fuel back stroke in the refueling process and promote the refueling process to be smoother; and compared with the base of the original refueling tube, extend the bottom length to 100mm, adding the upper open form in check valve structure, the result shows that in the process of refueling, dynamic fluid sealling can be formed to meet the design requirements. After that, the fuel system bench test was carried out, and conducted a bench test to verify the simulation results. The final filling in the tank is 50.8L, which meets the 85% filling requirement of the regulations; the emission result is 0.0141g/L, which meets the requirements of the regulation of 0.05g/L.


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