A check valveexhaustgasrecirculation (EGR) system, which makes effective use of intake and exhaust pressure waves, was proposed for turbocharged diesel engines.
提出了采用单向阀利用进排气压力波动的废气再循环(EGR)系统。
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Schemes of variable compression ratio (VCR), variable exhaustgasrecirculation (EGR), variable exhaustvalve timing, and EGR with stratification by tumble charge flow are recommended.
The key technologies to lower the exhaust emission, included the in-cylinder control, exhaustgasrecirculation, variable geometry turbo, 4-valve, common rail and after-treatment are presented.