EFFECTS OF CO2 IN-CYLINDER INJECTION ON PCCI COMBUSTION
In this study, two fuel injections were used to realize Premixed Charge Compression Ignition (PCCI) combustion. The first is during Negative Valve Overlap (NVO) period; the second is just before the compression Top Dead Center (TDC). CO<,2> in-cylinder injection was used to reduce the diffusive combustion of the second injected fuel. Engine experiments were conducted to study the effect of CO<,2> injection parameters, including injection timing (SOI<,CO2>) and injection quantity, on PCCI combustion and emissions. The results revealed that, for in-cylinder CO<,2> injection, either advancing SOI<,CO2> or increasing cyclic injection quantity can largely reduce NO<,x> emission with little impairment to the thermal efficiency. Although CO<,2> in-cylinder injection has a weaker effect in reducing NO<,x> emission than intake-pipe injection, it has little effect on smoke.
S. Qu K.Y. Deng Y. Cui L. Shi
Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong Univ Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong Univ Key Laboratory for Power Machinery and Engineering of Ministry of Education,Shanghai Jiao Tong Unive
国际会议
2007年(中国内燃机学会第六届学术年会暨国际内燃机学术研讨会和第六届中国国际内燃机及制造装备展览会)两会一展国际学术会议
上海
英文
271-277
2007-10-09（万方平台首次上网日期，不代表论文的发表时间）