转速拓展下喷油策略对柴油机低负荷预混燃烧的影响
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范超, 鹿盈盈, 刘一泽
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Effect of Injection Strategy on Low Load Premixed Combustion of a Diesel Engine in Engine Speed Extension
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FAN Chao, LU Yingying, LIU Yize
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表5 高转速方案比较
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Tab.5 Comparison of high speed schemes
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方案 | R/% | φCA/(°) (P2SOI/D2/P1SOI/D1/MSOI/D) | N/[g·(kW·h)-1] | C/[g·(kW·h)-1] | E/% | 1 | 0 | 0/0/0/0/-30/7.4 | 2.18×10-2 | 2.06×10-3 | 42.14 | 2 | 0 | 0/0/0/0/-25/7.4 | 2.02×10-2 | 3.68×10-3 | 42.62 | 3 | 0 | 0/0/0/0/-15/7.4 | 1.06×10-2 | 1.01×10-2 | 47.98 | 4 | 40 | 0/0/-30/3/-20/4.6 | 1.97×10-2 | 6.7×10-3 | 48.84 | 5 | 50 | 0/0/-30/3.7/-20/3.9 | 1.99×10-2 | 7.09×10-3 | 48.61 | 6 | 40 | 0/0/-25/3/-15/4.6 | 1.64×10-2 | 3.37×10-3 | 49.55 | 7 | 50 | 0/0/-25/3.7/-15/3.9 | 1.88×10-2 | 3.08×10-3 | 49.83 | 8 | 20+20 | -25/1.9/-18/1.9/-15/3.9 | 1.32×10-2 | 3.27×10-3 | 48.88 | 9 | 25+25 | -25/1.9/-18/1.9/-15/3.9 | 1.34×10-2 | 5.67×10-3 | 48.70 |
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