| 摘要 |
PURPOSE:To certainly prevent the percolation phenomenon of fuel by forming a cooling jacket onto the periphery of the float chamber of a carburetor and connecting the cooling jacket with a condenser and a reservoir tank through a piping, thus constituting a liquid sealing circuit, and by charging the inside of the circuit with a low boiling point liquid. CONSTITUTION:A constant quantity of fuel oil is stored in the lower float chamber 3 of a carburetor 1 by a valve 5 using a float 4. In this case, a cooling jacket 6 is formed on the periphery of the float chamber 3, and connected with a condenser 8 and a reservoir tank 9 through a piping 7, and thus a liquid sealing circuit is constituted. The liquid sealing circuit is charged with the low boiling point liquid such as acetone which has a boiling point of about 60 deg.C or less, and the float chamber 3 is cooled by utilizing the evaporation heat of the low boiling point liquid. The evaporated low boiling point liquid is condensed in the condenser 8 and recovered into the reservoir tank 9 for reutlization. Therefore, generation of percolation of the fuel in the float chamber 3 is prevented.
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