To provide a prechamber gas engine such that occurrences of knocking are suppressed.
A prechamber gas engine (1) includes a cylinder (2), a cylinder head (4), a piston (6) defining a main combustion chamber (10) with the cylinder head, a prechamber cap (8) with a precombustion chamber (20) defined therein, having a plurality of injection holes (16) communicating the precombustion chamber and the main combustion chamber with each other, an air supply valve (12) for opening and closing an air supply port (13) formed on the cylinder head, and an exhaust valve (14) for opening and closing an exhaust port (15) formed on the cylinder head. In a plane view as seen from below the cylinder head, at least one supply side injection hole (16b) and at least one exhaust side injection hole (16a) are present, and the total injection hole area of the supply side injection holes is larger than the total injection hole area of the exhaust side injection holes.
TANAKA KENGO
YUNOKI AKIHIRO
| JP2012137083A | 2012-07-19 | |||
| JP2006177248A | 2006-07-06 | |||
| JP2007113534A | 2007-05-10 |