| 摘要 |
PROBLEM TO BE SOLVED: To downsize a return fuel-cooling structure by naturally cooling air flow produced by the traveling of a vehicle while an excess fuel flows in a filler tube connected to a return tube. SOLUTION: This return fuel cooling structure comprises the filler tube guiding the fuel fed from a filler port to a fuel tank and the return tube 20 connected, at its one end, to an engine and returning the excess fuel not burned in the engine 17 to the fuel tank 13. The return tube 20 is connected to a neck 21 near the filler port 11 of the filler tube 15. COPYRIGHT: (C)2007,JPO&INPIT
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