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开发了一种新型燃烧室,解决小型高速汽油机燃烧时间短、燃烧过程不充分的难题.它利用在活塞顶面的火花塞的远端和近端处设计的与缸盖形状相吻合的特殊突起,可在发动机压缩和膨胀过程中产生强烈的挤气旋流.将它应用在高速汽油机中,可提高混合气的燃烧速率和火焰传播速率,从而全面改善内燃机的性能.实验研究表明,在空燃比和压缩比优化条件下使用该燃烧室,与原机相比发动机的输出功率和转矩分别提高了3.8%和1%,燃油消耗率节省19.3%,HC排放降低50%以上.
A new type of combustion chamber is developed to solve the problem of short combustion time and insufficient combustion process of a small high speed gasoline engine.It utilizes the special protrusions designed at the distal and proximal ends of the spark plug at the top of the piston to match the cylinder head shape, Which can produce strong squish swirling during the process of engine compression and expansion.It can be used in high speed gasoline engine to improve the combustion rate and flame propagation rate of the mixture and improve the performance of the internal combustion engine.Experimental results show that when the air- Compression ratio optimization of the use of the combustion chamber, compared with the original engine output power and torque increased by 3.8% and 1%, 19.3% savings in fuel consumption, HC emissions reduced by 50% or more.