| 摘要 |
PURPOSE: A temperature reducing device of diesel engine fuel controls the output of an engine evenly by cooling heated fuel with a cold air. CONSTITUTION: A temperature reducing device comprises a cooler line(15), a temperature sensor(16), a valve(30), an electronic control unit(ECU). The cooler line(15) is formed in ziazag shape, and branched from a fuel line(11), and goes through rear side of an air conditioner evaporator(21). The temperature sensor(16) measures the temperature of fuel which is introduced to a fuel pump(12). The valve(30) is formed in the branching part. When the temperature measured by the temperature sensor(16) is over a set temperature, the fuel is bypassed to the cooler line(15) by the valve(30). When the measured temperature is below a set temperature, the fuel is introduced to the fuel pump(12). The ECU controls the opening/closing of the valve(30) by comparing the measured temperature with a set temperature.
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