| 摘要 |
PURPOSE:To increase a suction pressure without reducing a compression ratio and improve the output of the engine by a method wherein the spray of a fuel injection valve is sprayed against a compression blade directly to cool suction air by utilizing the spray cooling effect of the fuel. CONSTITUTION:The fuel injection valve 42 is arranged in the upstream of a compressor 22 so as to include the blade of the compressor 22 within the injecting angle of the fuel injection valve 42. Accordingly, the fuel, injected from the fuel injection valve 42, collides against the blade of the compressor and vaporizes on the surface of the blade. According to this effect, not only the temperature of the compressor but also the same of suction air may be reduced. The temperature of the suction air is increased by condensation heat since the suction air is compressed by the compressor 22, however, the atomized particles of the fuel is sent into the engine together with the suction air by the compression blade, therefore, the atomized particles absorb the condensation heat as the vaporization heat thereof and the suction air may be cooled efficiently. |
