| 摘要 |
A fuel circulation system for a dimethyl-ether fuel vehicle may include a fuel tank storing a fuel, a fuel supply line connected to the fuel tank, a fuel supply pump disposed in the fuel supply line and supplying the fuel to a fuel injection system under pressure, a common rail maintaining the pressure of the fuel pressurized from the fuel supply pump, the fuel injection system injecting the fuel supplied from the common rail, a fuel return line fluid-communicating with and diverging from the fuel injection system and/or the common rail to collect remaining fuel of the fuel, and a fuel cooling system disposed on the fuel return line such that a return fuel returned from the fuel injection system and/or the common rail passes therethrough, wherein the fuel cooling system may be disposed close to a heater core to exchange a heat of the return fuel.
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