The potentials to extend the operating range of HCCI engines through two strategies, i. e. variablecompressionratio and boost, were investigated.
最后考察了通过使用变压缩比和增压两种策略扩展HCCI发动机运行范围的潜力。
2
Schemes of variablecompressionratio (VCR), variable exhaust gas recirculation (EGR), variable exhaust valve timing, and EGR with stratification by tumble charge flow are recommended.
The pump features a variable discharge port design which adjusts automatically to the internal compressionratio of the vacuum pump resulting in maximum efficiency throughout the vacuum range.