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燃燒室結(jié)構(gòu)對(duì)稀燃天然氣發(fā)動(dòng)機(jī)性能的影
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of the Combustion Chamber Structure on the Lean Burn CNG Engine Performance
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    摘要:

    闡述了稀燃天然氣發(fā)動(dòng)機(jī)缸內(nèi)不同氣體運(yùn)動(dòng)及其產(chǎn)生機(jī)理，分析了缸內(nèi)氣體運(yùn)動(dòng)對(duì)發(fā)動(dòng)機(jī)燃燒過(guò)程的影響,。針對(duì)稀燃天然氣發(fā)動(dòng)機(jī)的燃燒過(guò)程,設(shè)計(jì)了不同結(jié)構(gòu)形狀和尺寸的燃燒室,并分別通過(guò)數(shù)值模擬和試驗(yàn)方法,，就不同結(jié)構(gòu)的燃燒室對(duì)天然氣發(fā)動(dòng)機(jī)性能的影響進(jìn)行了研究。結(jié)果顯示,，產(chǎn)生湍流強(qiáng)度大的燃燒室燃燒速度快,，動(dòng)力性和經(jīng)濟(jì)性較好，而NOx排放量也較大,。

    Abstract:

    This paper presented the different mass motion and the mechanism, analyzed the effect of the mass motion on the combust process of the engine. Combustion chambers with different structure and size that fit the combustion of the lean burn CNG engine were given and the effect of the chambers with different structure on the performance of CNG engine was studied through numerical study and experiment. The result shows that the combustion of lean burn engine with high turbulence chamber is fast, provides more power and economic performance, but high NOx emissions.

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司鵬鹍,張惠明,楊志勇,張自立,焦運(yùn)景,程輝.燃燒室結(jié)構(gòu)對(duì)稀燃天然氣發(fā)動(dòng)機(jī)性能的影[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(4):53-57. of the Combustion Chamber Structure on the Lean Burn CNG Engine Performance[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(4):53-57.

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