Browse Publications Technical Papers 2019-01-0800
2019-04-02

Simulation and Experimental Study of Filler Pipe of Automobile Fuel Tank Based on ORVR Technology 2019-01-0800

A filler pipe of vehicle fuel tank has been simulated and optimized about refueling smoothness which is based on On-board Refueling Vapor Recovery (ORVR). Both liner of filler pipe and straight pipe section at the bottom of filler pipe have been studied. The results show that extending the end of the liner to the first elbow of the filler pipe can effectively control the phenomenon of fuel spit-back in the refueling process and promote the refueling process to be smoother. Compared with the bottom of the original filler pipe, extending the bottom length to 100 mm, adding the upper open form in check valve structure, the result shows that in the process of refueling, dynamic fluid sealing 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 50.8 L, which meets the 85% filling requirement of the regulations; the canister has gain 67.38 g, the emission result is 0.0141 g/L, which meets the requirements of the regulation of 0.05 g/L.

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