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本文通过调整导气屏气阀位置产生大范围变化的缸内气流运动形式。用传统的稳流试验台和作者最近研制的测缸内滚流运动的稳流试验台对各种气流运动形式进行稳流试验，用二维激光多普勒测速仪在反拖的发动机气缸内测量缸内紊流运动的发展变化并用着大发动机的性能实验结果来分析各种气流形式的涡流、滚流和紊流特性。试验结果表明，在气缸中产生较强的横轴涡流即滚动或接近滚动气流运动时，燃烧室内的紊流强度可获得较大的提高，性能也有明显的改善，而传统的立轴涡流对汽油机燃烧室内紊流强度没有明显增加，对发动机的燃烧和性能也不带来改善。
In this paper, by adjusting the position of the air guide screen valve to produce a wide range of changes in the form of cylinder air movement. The steady current test was carried out on all kinds of airflow by using the steady current test bench and the steady flow test bench recently developed by the author to measure the tumble flow in the cylinder. The two-dimensional laser Doppler velocimeter The development of turbulent flow in the cylinder was measured and the turbulence, tumble and turbulence characteristics of various gas flows were analyzed with the experimental results of large engines. The experimental results show that the turbulence intensity in the combustion chamber can be greatly improved and the performance is improved obviously when the horizontal axis vortex is generated in the cylinder, that is, the rolling or near-rolling airflow. However, the traditional vertical axis vortex can cause the combustion of the gasoline engine Indoor turbulence intensity is not significantly increased, the combustion and performance of the engine does not bring improvement.