Proper amount EGR inducted can dramatically enhance the combustion rate and decrease the pressure rise rate, but too much EGR would result in unstable even intermittent combustion.

引入适量的EGR能显著地改善燃烧速率，降低最大压升率，但EGR过大会使混合气不能稳定、连续地着火燃烧。

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In addition, thousands of firms and entrepreneurs own single- and multi-engine aircraft powered by Intermittent Combustion (non-turbine) engines.

FORBES: In Good Company, Mr. President