Helical port also produces swirl by airflow interaction of valve gap and cylinder wall, so swirl number depends on helical line direction of relevant cylinder center.
2
本文以2105 A型柴油机为例，探讨了柴油机工作状态下气缸壁间隙不同时所引起的机体振动信号。
Taking the 2105A model diesel engine as an example, this paper investigates the vibration signal of running engine surface caused by the different cylinder clearance.
3
底部间隙对各种扰流片引起的壁面压力分布的影响趋势完全相似。
The influences of gap with different height on pressure distribution are in the same manner.
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