| 摘要 |
PURPOSE:To make it perform evaporation and diffusion of fuel as well as to improve a utilization factor at the time of combustion ever so high, by forming the tip end from a projection part, installed in a central zone of a combustion chamber, for deflecting a fuel jet stream out of a nozzle, into a conical form or the like. CONSTITUTION:Fuel to be spouted out of a nozzle 2 comes into collision with a projection part 4 being installed in a central zone of a toroidal type combustion chamber 3 of a piston 1 and made so as to be deflected in design. And the fuel is deflected at an optional angle of reflection by a tip end form of the projection part 4. In this case, this tip end form of the projection part 4 is formed into conical, multi-pyramidal, polygonal surface bodies, etc. According to this method, fuel is made to collide with the tip end of the projection part 4 whereby evaporation and diffusion of the fuel are polygonally performable with a time difference and a phase difference, thus an air utilization factor at the time of combustion is improvable. Therefore, a combustion speed is well accelerable. |
