涡流室与主燃烧室之间的通道节流是影响涡流室式柴油机热效率的主要原因之一。本文据此原理对一台单缸涡流室式柴油机的燃烧室镶块连接通道进行了开发研究。试验结果表明新型连接通道能有效地增加流通系数（尤其是高速高负荷时），减小节流损失，加快主燃烧室的燃烧和降低燃油消耗率。 The throttling of the passage between the vortex chamber and the main combustion chamber is one of the main reasons that affect the thermal efficiency of the vortex chamber diesel engine. Based on this principle, a single cylinder vortex chamber diesel engine combustion chamber insert connection channel was developed. The experimental results show that the new connecting passage can effectively increase the circulation coefficient (especially at high speed and high load), reduce the throttling loss, accelerate the combustion in the main combustion chamber and reduce the fuel consumption rate.