| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel adjusting device for a model engine, which can adjust a pressurized fuel flow according to high/low engine speed. SOLUTION: The main body 31 of this fuel adjusting device 30 is equipped with a fuel inlet 32, a fuel outlet 33 and an air inlet 42 to which air pressure from a crank chamber is applied. The inlet 32 and outlet 33 are communicated with each other through a channel 34 having a sheet surface 37. A regulating valve 35 is arranged in the inside of the channel 34 and closes the sheet surface 37. A spring 38 pushes the regulating valve 35 to a direction where the sheet surface 37 is closed. The other end of the regulating valve 35 is brought into contact with a piston 39. The air inlet 42 can be positioned and adjusted by a screw 43. The spring 38 pushes the piston 39 to a direction where the sheet surface 37 is opened. The outlet 33 is connected to a fuel injection device. The fuel injection device ejects fuel to the inside of the crank chamber. The piston 39 is pushed according to air pressure in the crank chamber corresponding to an engine speed so as to open the sheet surface 37. Flow control according to the engine speed can be performed. Fuel tending to be insufficient at the time of high speed can be increased, and fuel supply tending to be rich at the time of low speed can be narrowed down.
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