共查询到12条相似文献,搜索用时 58 毫秒
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介绍了新型预热燃油箱的研制和应用试验情况。指出将柴油机高温冷却水通过散热管引入燃油箱对燃油进行预热,可使机车在0℃以下的外温条件下使用0号柴油,实现"燃油低烧一号"工程,达到节资降耗的目的。 相似文献
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Effects of Fischer-Tropsch diesel fuel on combustion and emissions of direct injection diesel engine
Yongcheng HUANG Shangxue WANG Longbao ZHOU 《Frontiers of Energy and Power Engineering in China》2008,2(3):261-267
Effects of Fischer-Tropsch (F-T) diesel fuel on the combustion and emission characteristics of a single-cylinder direct injection
diesel engine under different fuel delivery advance angles were investigated. The experimental results show that F-T diesel
fuel exhibits shorter ignition delay, lower peak values of premixed burning rate, lower combustion pressure and pressure rise
rate, and higher peak value of diffusion burning rate than conventional diesel fuel when the engine remains unmodified. In
addition, the unmodified engine with F-T diesel fuel has lower brake specific fuel consumption and higher effective thermal
efficiency, and presents lower HC, CO, NO
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and smoke emissions than conventional diesel fuel. When fuel delivery advance angle is retarded by 3 crank angle degrees,
the combustion duration is obviously shortened; the peak values of premixed burning rate, the combustion pressure and pressure
rise rate are further reduced; and the peak value of diffusion burning rate is further increased for F-T diesel fuel operation.
Moreover, the retardation of fuel delivery advance angle results in a further significant reduction in NO
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emissions with no penalty on specific fuel consumption and with much less penalty on HC, CO and smoke emissions.
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Translated from Chinese Internal Combustion Engine Engineering, 2007, 28(2): 19–23 [译自: 内燃机工程] 相似文献
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试验在一台S195柴油机上进行,试验结果表明,新型多碳醇-柴油混合燃料的油耗率比纯柴油高,但随负荷的增大,差距呈下降趋势。新型混合燃料在较大工况范围都保持较低的CO排放量。新型混合燃料中,小比例多碳醇油料的加入有利于混合燃料的HC排放状况的改善,大比例多碳醇油料的加入,对改善混合燃料的HC排放影响不明显;新型混合燃料的NOx排放均比纯柴油低,并且小比例多碳醇-柴油混合燃料的NOx排放比其大比例混合燃料的NOx排放量低;新型混合燃料的碳烟排放均比纯柴油低,并且随着多碳醇掺混比例的增大,改善效果越好。 相似文献
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介绍了大连机车车辆厂引进国外电子控制燃油喷射系统的原理、结构及其装机台架试验的情况。试验表明,装用该喷油系统后柴油机游车问题得到解决,燃油经济性也有所提高。另外,对柴油机供油提前角进行调整时不再需要停机。 相似文献
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从发展内燃机车燃油替代品、降低现有内燃机车的维修费用两个方面进行了探讨,并提出了建议。 相似文献