| 摘要 |
The combustion chamber for increasing the output of engine and dereasing exhaust gas, properly controls flow of suction air and maintains the optimised state of fuel and air mixture. The comtustion chamber comprises a cavity (2) formed by eight straight lines (3), four big-arcs (4) and four small-arcs (5) in the upper portion of the piston (1); round-top projected section (6) at the center of the cavity (2). The radius of the small arcs (5) is 17-25 % of the inscribed circle radius in the cavity (2). |
