Due to the need to achieve a fast warm-up of the after-treatment system in order to fulfill the pollutant emission regulations, a growing interest has arisen to adopt variable valve timing technolo...

中文翻译：

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通过可变气门机构策略优化柴油机和排气热管理

由于需要实现后处理系统的快速预热以满足污染物排放法规，采用可变气门正时技术的兴趣越来越大。