PURPOSE: To aim at miniaturization and lightweightiness with a simple system, by making up fuel injection nozzles and injection pipes per cylinder into one piece each alone.
CONSTITUTION: At a fixted stroke interval from time that a feed hole 38 is closed by a piston 31 and interconnected to an annular groove 31a, pressure inside a chamber 37a becomes high whereby a check valve 36 opens. And, light oil in the chamber 37a is fed under pressure to an empty space 13 of a nozzle 1 via a second fuel passage 12 and a second fuel system passage 22, and a needle valve 14 opens against a spring 23, causing the light oil to be spouted. In addition, almost simultaneously with that the feed hole 38 is interconnected to the annular groove 31a or after that, an alcohol port 39 is opened. Then, alcohol is fed under pressure to the empty space 13 of the nozzle 1 via a first fuel passage 11 and a first fuel system passage 21.
MASHIMA YOUZOU
TSUKAHARA KENJI
