| 摘要 |
PURPOSE:To improve the safety by providing an opening for discharging the combustion gas in the combustion chambers to the outside to a top dead center side and preventing the outside discharge of non-combustion gas. CONSTITUTION:An ignition plug 18 is discharged by an igniting control device 16 to ignite to the fuel mixed gas. Then, the combustion gas is expanded by the combustion in a combustion chamber 7a, the non-combustion gas is pushed to flow into a combustion chamber 7b through a gap 44a of a grid 15a and the combustion speed at the combustion chamber 7b increases. And, the non- combustion gas in the combustion chamber 7b flows into a combustion chamber 7c through a gap 44b of a grid 15b, the combustion speed at the combustion chamber 7c increases and the inside of a housing 1 attains to high pressure instantaneously. Further, a piston 3 is extruded to the direction of a guide 4 to be driven. |
