《柴油机燃料供给与调节》出版发行

《柴油机燃料供给与调节》一书由江苏大学与无锡油泵油嘴研究所的教授、专家合作编写，对柴油机燃油系统的原理、结构设计、典型制造技术及电子控制技术作了全面系统的论述，对柴油机及其燃油系统的发展历史作出了详细的介绍。     

提高喷油系统零部件清洁度的工艺技术研究

介绍了柴油机燃油喷射系统的清洁度控制技术,对燃油喷射系统的工作性能特点和机械零件的要求进行研究,提出了燃油喷射系统零部件的清洁度要求,通过对影响系统清洁度的毛刺产生机理的研究,介绍和分析了燃油喷射系统零部件电解、挤压研磨等去毛刺技术及相应设备,并对提高系统零部件清洁度的清洗技术作了介绍和比较。     

车用高压共轨柴油机冷起动性能研究

对匹配高压共轨燃油系统的柴油机,使用冷起动试验台架进行试验,研究其冷起动性能,主要是最低起动温度和起动时间,同时试验在冷起动情况下,主喷提前角对于冷起动性能的影响。试验证明,匹配高压共轨燃油系统的柴油机,可以有效的提高冷起动性能,同时得到了该款柴油机冷起动的最佳主喷提前角的标定数据量。     

船舶柴油机节能减排技术

有效地控制好燃油消耗,将对船舶的经济性、环保性产生重大影响。文章介绍了船舶柴油机节能减排的几项技术措施:采用经济航速,降低燃油消耗;采用两级涡轮机增压,提高柴油机的效率;采用VTA涡轮增压技术,提高燃料燃烧的效率;使用共轨燃油喷射技术改进燃油喷射系统,提高柴油机功率,降低油耗。这些措施已在实际中应用,取得了良好的效果。     

基于SCR技术路线的国Ⅳ柴油机开发’

在一台国Ⅲ电控重型柴油机上进行了基于自主电控共轨燃油系统、自主选择性催化还原（SCR）技术的国Ⅳ柴油机开发,系统研究了燃油系统、进排气系统、SCR系统等对柴油机性能和排放的影响,研究结果表明：通过优化增压系统参数,采用高轨压和小孔径喷嘴,在爆压限值条件下调整喷油定时,柴油机比油耗和烟度较原机大幅改善,SCR喷射系统在当量比接近1时,NO。转换效率达到80％以上。循环测试结果表明：通过对燃烧系统和喷油控制参数的综合优化,并采用自主SCR系统,柴油机气体排放（N0,,Hc和cO）和颗粒（PT）排放可以达到国IV排放标准要求,加权比油耗较原机大幅改善。     

自主电控高压共轨柴油机冷起动控制策略研究

为了解决6DF2柴油机冷起动困难的问题,用自主开发的电控高压共轨系统取代原机所用的机械泵系统,并设计了起动控制策略,主要包括对主喷及预喷油量,主喷及预喷定时以及起动轨压的控制。试验结果表明,采用自主高压共轨系统及以上控制策略能在不增加任何硬件设备的基础上大幅提高6DF2柴油机的冷起动性能,满足实际车用柴油机的使用要求。     

自主共轨系统在CA4DC柴油机上的应用研究

对CA4DC柴油机的燃油系统进行了国产化研究：沿用原机的进气道和燃烧室方案,采用6×Φ0.14 mm喷油嘴方案,并匹配自主研发的高压共轨燃油喷射系统,通过对控制参数的详细标定,发动机外特性试验及负荷特性试验结果表明,匹配自主共轨系统的发动机完全满足国3排放标准。     

机械驱动钻机柴油机节油控制器的设计

针对钻井用柴油机起钻、下钻过程中,柴油机工作在1 300r/min时,存在着燃油浪费的问题,在分析机械驱动钻机柴油机扭矩速度特性及喷油速度特性的基础上,研制了一种基于DSP TMS320F2812的柴油机转速的节能控制系统。通过与绞车同轴安装的扭矩转速传感器计算得到绞车功率,实时调节柴油机转速,降低油耗。介绍了系统主要构成和工作原理,设计了系统相应的硬件电路,编写了DSP控制软件。应用表明,该系统具有良好的操控性,降低了柴油机的燃油消耗。     

船用高速柴油机使用重质燃油的影响及对策

在油价高企的背景下，为节约成本，航运业开始越来越多地使用重质燃油作为船舶燃料。对船用高速柴油机改用重质燃油的影响及重质燃油的危害机理进行了分析，从柴油机技术管理和相关润滑油品选用方面提出了解决对策。     

石油矿场机械液压传动输出外特性及调速特性设计

分析了电机和柴油机的机械特性及工作稳定性；提出了电机和柴油机驱动的液压系统输出特性的设计方法；论述了柴油机驱动系统采用双重调速的方法和调速特性；指出了双重调速可以提高柴油机和液压泵工作寿命，提高燃油经济性。     

Performance and exhaust emissions of a diesel engine using diesel nanoemulsions as alternative fuels

The aim of this paper is to investigate the effect of water-in-diesel fuel nanoemulsions on diesel engine performance and exhaust emissions of a single cylinder diesel engine at different engine loads. Emulsified diesel fuel was prepared by mixing diesel fuel with surfactant in the percentage of 4, 6, 8 and 10 wt% of the emulsion total weight. Emulsified diesel oils with varying content of water and surfactant concentrations were prepared via the batch method technique. Different concentrations of water as 5, 6 and 7 wt% was gradually added. Effect of water content and surfactant concentration on engine performance parameters and exhaust emissions were investigated. From the obtained results, specific fuel consumptions for water diesel emulsions were reduced by 8% compared to pure diesel fuel at 4 wt% surfactant concentration, 7 wt% water content and engine load of 1 kW. Furthermore, the lowest HC, CO and NOx emissions value of 66, 48 and 32%, respectively were obtained in case of using 6 wt% of surfactant concentration, 7% water content and engine load of 1 kW. The prepared emulsified diesel fuel achieved a higher engine performance and lower exhaust emissions compared to neat diesel fuel.     

模拟高原环境下无灰助燃剂对柴油机性能的影响

在大气模拟试验装置上进行了模拟高原环境下柴油机燃用0号柴油和添加无灰助燃剂燃油（1号柴油）的发动机台架试验,通过测试功率、燃油消耗率、碳烟等有害物质排放量来评价柴油添加剂节能减排功效。结果表明,柴油机在模拟海拔3 000 m气压（70 kPa）条件下,与燃用0号柴油相比,燃用1号柴油时发动机输出功率升高,燃油消耗率及CO、HC、碳烟排放量降低,NOx排放量略有增加。添加无灰助燃剂可有效提升柴油机的动力性、节省燃料和降低排放,改善发动机的高原适应性。     

Kinetic modeling and experimental study on the combustion,performance and emission characteristics of a PCCI engine fueled with ethanol-diesel blends

The combustion process in the Premixed Charge Compression Ignition (PCCI) engine is basically restricted by the in cylinder charged mixture components. Also, the homogeneity of the charged mixture is determining the quality and process of the chemical reaction during the first stage of combustion which establish the auto-ignition process. In the present work, the engine experimental setup is equipped with a new suggested modification on the original fuel system device in order to produce a perfect commixture of diesel/ethanol at different blends ratio with the charged air. The obtained laboratory results are used to validate the simulation's data of the PCCI engine ignition. The prediction is performed using a detailed kinetic reaction mechanism. The simulation study has been achieved to predict the auto-ignition timing and the combustion characteristics of the PCCI engine fueled with different blends of ethanol and diesel at different volume percentage. The obtained results show that the premixed ratio of the ethanol in the ethanol/diesel fuel blends can be used to control the auto-ignition timing and the combustion characteristics at different engine air/fuel ratios. Also, the main pathway of this work is to establish the influence of the engine operating parameters which including the premixed ratio, fuel–air equivalence ratio on the engine performance, combustion and emission characteristics of the PCCI engine. These effects are studied and traced through the simulation result data of the in-cylinder pressure, temperature, and gas phase heat release at different a premixed ratio of ethanol-diesel fuels blends of 0, 10, 20, 30,40 and 50% (by volume).     

Performance and emissions characteristics of C.I. engine fueled with palm oil/palm oil methyl ester blended with diesel fuel

The rapid increasing worldwide demand for energy, continuous increasing of fuel consumption and the progressive depletion of fossil fuels led to an intensive search for biodiesel as alternative fuel for diesel engine. Performance and emissions characteristics of C.I. engine fueled with palm oil/palm oil methyl ester blended with diesel fuel is investigated experimentally. Biodiesel was prepared from palm oil by transesterification process. Diesel, biodiesel and palm oil blends were prepared in volume percentages of 20 and 100% as B20, B100 and PO20. Physical and chemical properties of biodiesel blends were near to diesel fuel. The experimental study is conducted on a diesel engine at different engine loading from zero to full loads using palm oil and palm biodiesel and its blends with diesel fuel. Thermal efficiency of biodiesel and oil blends with diesel fuel was lower than diesel fuel. Specific fuel consumptions for biodiesel and oil blends were found to be higher than diesel oil. Unburned hydrocarbons and carbon monoxide emissions have been decreased for biodiesel blends but it increased for oil blends compared to diesel fuel. Nitrogen oxide emissions have slightly been increased for biodiesel and oil blends compared to diesel fuel. Blends of diesel – biodiesel up to 20% biodiesel percentage by volume are recommended because of the improvement in performance and emissions as compared to diesel fuel.     

柴油机油的衰变与电导率的相关性分析

通过模拟实验考察了水,铁和柴油等污染物对柴油机油电导率的影响。同时考察了T501抗氧剂及氧化过程与柴油机油电导率的相关性。考察发现,柴油机油的电导率随着氧化时间的增加先降低尔后迅速增加。     

ECU硬件在环用涡轮增压共轨柴油机模型开发

基于MATLAB/SIMULINK软件平台,开发了应用于电控单元（ECU）硬件在环测试的涡轮增压共轨柴油机模型。该模型包括进气系统模块,共轨燃油系统模块,扭矩计算模块,负载自动控制模块,冷却系统模块,发动机配置及信号转换模块和控制面板。为验证模型的准确性,以6DE柴油机为原型,利用试验数据对模型进行了校准。校准后的模型对发动机关键参数的计算值与试验值相吻合,满足控制系统开发对模型的需求。     

新型燃烧模型在柴油机燃烧模拟中的应用（上）

将每个计算单元分为燃料区、空气区和混合区3个区域,在火焰传播方向上又将每个区域分为已燃区和未燃区,建立了柴油机的三区相关火焰燃烧模型,利用该模型对超多喷孔柴油机和传统柴油机缸内燃烧过程进行三维数值模拟,不仅得到了与试验值相符的气缸压力、NOx和SOOT排放量等结果,而且获得了柴油机缸内混合气的浓度场、温度场、NOx质量分数、SOOT质量分数分布等三维结果,三维结果很好地解释了超多喷孔柴油机的低排放的形成机理。     

柴油机起动工况喷油策略

采用了模糊比例积分微分（PID）怠速稳定控制方法中的恒定油量进怠速、平滑降油进怠速、阶梯降油进怠速3种喷油量控制策略研究柴油机起动时的排放,结果显示：采用恒定油量进怠速、平滑降油进怠速这2种油量控制策略时,起动过渡阶段有许多不完全燃烧循环,导致起动阶段排放很高;采用阶梯降油进怠速控制策略时首循环没有失火现象,起动过渡阶段燃烧状况较好,排放性能较为优越。     

新型燃烧模型在柴油机燃烧模拟中的应用（下）

将每个计算单元分为燃料区、空气区和混合区3个区域,在火焰传播方向上又将每个区域分为已燃区和未燃区,建立了柴油机的三区相关火焰燃烧模型,利用该模型对超多喷孔柴油机和传统柴油机缸内燃烧过程进行三维数值模拟,不仅得到了与试验值相符的气缸压力、NOx和SOOT排放量等结果,而且获得了柴油机缸内混合气的浓度场、温度场、NOx质量分数、SOOT质量分数分布等三维结果,三维结果很好地解释了超多喷孔柴油机的低排放的形成机理。