Design and experiment of multi spark capacitor discharge ignition system
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摘要: 针对某型二冲程点燃式空气辅助缸内直喷发动机燃用柴油问题,提出了实现单电容连续多次放电点火的方法,研制了直流电容式多次放电点火模块,进行了多次点火功能性验证及点火能量测试.在此基础上,进行了环境温度为6℃下的冷起动试验及3000r/min小负荷性能试验,结果表明:在该环境条件下,采用5次放电点火策略能够使发动机起动成功,在小负荷工况下,增加点火次数有利于改善缸内燃烧,点火提前角在10°~20°之间时,4次点火对发动机动力性、燃油消耗率及排放性能改善比2次点火更明显,当点火提前角提前至30°后,其改善作用逐渐减小.Abstract: A multi spark discharge ignition mode with a single capacitor for a two stroke airassisted direct injection spark ignition engine fueled with diesel was proposed, and a direct current multi spark capacitor discharge ignition system was developed, in which the multi spark ignition mode was verified and ignition energies were tested. On these basis, the engine tests of cold start and low load at 3000r/min under 6℃ ambient temperature were conducted. The test results show that, applying 5 times capacitor discharge ignition is able to make a successful engine cold start, and under the low load condition, increasing the ignition times promotes the combustion in cylinder; 4 times ignition is obviously more beneficial to improve the power performance, fuel economy and emissions performance than 2 times ignition with the ignition advance angle between 10° crank angle before top dead center and 20° rank angle before top dead center ; the improvement effects gradually become small with the ignition timing angle advanced to 30° crank angle before top dead center.
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[1] 尹泽勇,李上福,李概奇.无人机动力装置的现状与发展[J].航空发动机,2007,33(1):10-15. YIN Zeyong,LI Shangfu,LI Gaiqi.Current state and development of the unmanned aerial vehicle power plants[J].Aeroengine,2007,33(1):10-15.(in Chinese) [2] 张奇,徐国强,杜发荣.小型航空活塞发动机点火系统优化设计[J].航空动力学报,2012,27(2):343-349. ZHANG Qi,XU Guoqiang, DU Farong. Aero piston engine capacitor discharge ignition system optimization research and design[J].Journal of Aerospace Power,2012,27(2):343-349.(in Chinese) [3] Cathcart G,Dickson G,Ahern S.The application of airassist direct injection for sparkignited heavy fuel 2stroke and 4stroke engines[R].SAE Technical Paper 2005-32-0065,2005. [4] 张立鹏,李志锐,吴广顺,等.电容放电式点火系统的优化设计[J].小型内燃机与摩托车,2008,37(6):39-41,76. ZHANG Lipeng,LI Zhirui,WU Guangshun,et al.Optimizing design of capacity discharge electronic ignition system[J].Small Internal Combustion Engine and Vehicle Technique,2008,37(6):39-41,76.(in Chinese) [5] Patrick J.Lawrence W,Julie E,et al.The feasibility of a kerosene fueled spark ignited twostroke engine[R].SAE Technical Paper 911846,1991. [6] 王春丰,魏民祥.航空活塞发动机燃烧煤油冷起控制研究[J].航空动力学报,2012,27(7):1619-1624. WANG Chunfeng,WEI Mingxiang.Research on cold start fuel flow control of aeropiston engine burning kerosene[J].Journal of Aerospace Power,2012,27(7):1619-1624.(in Chinese) [7] 石允.小型点燃式二冲程活塞重油发动机混合气形成的模拟研究[D].北京:北京交通大学,2012. SHI Yun.Study on heavyfuel mixture formation of lightweight sparkignition two stroke engine[D].Beijing:Beijing Jiaotong University,2012.(in Chinese) [8] 莫胜钧.小型航空点燃式重油活塞发动机点火及火焰传播特性的模拟研究[D].北京:北京交通大学,2012. MO Shengjun.Study on the ignition and flame propagation property of lightweight spark ignition heavy oil aeroengine[D].Beijing:Beijing Jiaotong University,2012.(in Chinese) [9] 乔安平,高峰,李云清.一种新的能量叠加点火系电路理论研究[J].农业机械学报,2004,35(2):21-24,28. QIAO Anping,GAO Feng,LI Yunqing.Research on circuit theory of a new superposed energy type of ignition system[J].Transactions of the Chinese Society for Agricultural Machinery,2004,35(2):21-24,28.(in Chinese) [10] 乔安平,高峰,李云清.一种新的能量叠加点火系性能匹配研究[J].农业机械学报,2004,35(3):41-44. QIAO Anping,GAO Feng,LI Yunqing.New superposed energy type ignition system and its matching performance[J].Transactions of the Chinese Society for Agricultural Machinery,2004,35(3):41-44.(in Chinese) [11] 张晓,汪洋,史家涛,等.多脉冲点火对火花助燃均质充量压缩着火燃烧的影响[J].天津大学学报,2007,40(10):1146-1150. ZHANG Xiao,WANG Yang,SHI Jiatao,et al.Effect of multiPulse ignition on sparkassisted homogenous charge compression ignition combustion[J].Journal of Tianjin University,2007,40(10):1146-1150.(in Chinese) [12] 卫忠星,何文华,邵千钧,等.多次点火对LPG发动机怠速性能影响的研究[J].内燃机工程,2004,25(6):27-29. WEI Zhongxing,HE Wenhua,SHAO Qianjun,et al.Study on the effects of multitime ignition upon idle performance of LPGfueled engine[J].Chinese Internal Combustion Engine Engineering,2004,25(6):27-29.(in Chinese) [13] 邵千钧,何文华,卫忠星,等.多次点火提高LPG发动机点火可靠性的研究[J].内燃机工程,2005,26(4):59-62. SHAO Qianjun,HE Wenhua,WEI Zhongxing,et al.Study of multitime ignition improving ignition reliability of LPGfueled engine[J].Chinese Internal Combustion Engine Engineering,2005,26(4):59-62.(in Chinese) [14] Gerald J R.An efficient,powerenhanced ignition system[J].IEEE Transactions on Plasma Science,1997,25(2):306-310. [15] Sung B H,Kyu H C,Sung O R,et al.Ignitability and combustion characteristics of the multi spark capacitor discharge ignitor for a lean burn engine[R].SAE Technical Paper 952396,1995. [16] 张德福,张惠明,孙文广,等.多脉冲点火天然气发动机的初步研究[J].汽车技术,2008,8:13-16. ZHANG Defu,ZHANG Huiming,SUN Wenguang,et al.Preliminary investigation on CNG engine with multipulse ignition[J].Automobile Technology,2008,8:13-16.(in Chinese) [17] 姜立标,杨建国,杨书华.数字式点火模块自适应控制的研究[J].汽车工程,2004,26(5):549-552. JIANG Libiao,YANG Jianguo,YANG Shuhua.A study on adaptive control for digital ignition module[J].Automobile Engineering,2004,26(5):549-552.(in Chinese) [18] 王永伟,魏民祥,杨海青,等.空气辅助缸内直喷发动机正时控制策略[J].航空动力学报,2014,29(12):2942-2947. WANG Yongwei,WEI Mingxiang,YANG Haiqing,et al.Timing control strategies of airassisted direct injection engine[J].Journal of Aerospace Power,2014,29(3):2942-2947.(in Chinese) [19] LI Binglin,WEI Minxiang.Study on adaptive ignition energy system of twostroke spark ignition engine[C]∥Proceedings of the 2009 International Conference on Energy and Environment Technology.Guilin,China:IEEE,2009:337-340. [20] 邹开凤,李勋章,殷合香.电容放电点火装置参数的选择研究[J].汽车工程,2007,29(5):401-403. ZOU Kaifeng,LI Xunzhang,YIN Hexiang.A study on the selection of parameters for capacitor discharge ignition device[J].Automobile Engineering,2007,29(5):401-403.(in Chinese)
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