Analysis of Cyclic Fluctuations of Charge Motion and Mixture Formation in a DISI Engine in Stratified Operation
Analysis of Cyclic Fluctuations of Charge Motion and Mixture Formation in a DISI Engine in Stratified Operation
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DOI：
10.4271/2007-01-1412
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发表时间：
2007-04
期刊：
影响因子：
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通讯作者：
P. Adomeit;O. Lang;S. Pischinger;Richard Aymanns;M. Graf;G. Stapf
中科院分区：
文献类型：
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作者：
P. Adomeit;O. Lang;S. Pischinger;Richard Aymanns;M. Graf;G. Stapf
内燃机的过程会受到周期性波动的影响，这对发动机的运行和排放行为有直接影响。直喷式汽油发动机存在由流量和喷射引起和叠加的波动。在分层操作中，它们可能会导致严重的操作问题，例如失火。目前，关于循环波动的形成和原因的知识相当有限，这可以归因于流动不稳定性的复杂性。
The processes of an internal combustion engine are subject to cyclic fluctuations, which have direct consequence on the operational and emission behavior of the engine. Direct injection gasoline engines have fluctuations that are induced and superimposed by the flow and the injection. In stratified operation they can cause serious operating problems, such as misfiring. Currently, the state of knowledge on the formation and causes of cyclic fluctuations is rather limited, which can be attributed to the complex nature of flow instabilities.