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汽车安全与节能学报

JASE ›› 2017, Vol. 08 ›› Issue (03): 226-238.DOI: 10.3969/j.issn.1674-8484.2017.03.002

• 综述与展望 • 上一篇    下一篇

汽油直喷发动机的颗粒物排放研究综述( 英文)

方铁钢1 ，王利兵 1，王 志2   

  1. 1. 北卡罗莱纳州州立大学 机械与航空工程系，Raleigh, NC 27695，美国；
    2. 清华大学 汽车安全与能源国家重点实验室，北京 100084，中国
  • 出版日期:2017-09-28 发布日期:2017-10-03
  • 作者简介:方铁钢 博士 方铁钢博士现在是北卡罗莱纳州州立大学(NC State University) 机械与航空工程系的教授。毕业于清华大学汽车工程系，获计算机科学与技术系第二学士学位，其后于罗格斯大学（Rutgers University）获硕士学位，于伊利诺伊大学（University of Illinois at Urbana-Champaign）获得博士学位。研究方向包括：内燃机、可替代燃料及生物燃料、高压喷雾燃烧、碳烟生成、液滴破碎及雾化、化学反应流体的光学测量、传热传质及流体力学。是燃烧协会、国际自动机工程师学会(SAE)、国际液体雾化与喷雾系统 学会(ILASS)、美国工程教育学会(ASEE) 和美国机械工程师学会(ASME) 等学会的会员。
  • 基金资助:

    Supported by ： 汽车安全与能源国家重点实验室开放基金(KF16082)。

Particulate Matter Emissions from Gasoline Direct Injection Engines: Research Review

FANG Tiegang 1, WANG Libing 1, WANG Zhi 2   

  1. 1. Department of Mechanical and Aerospace Engineering North Carolina State University, Raleigh, NC 27695, USA;
    2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Online:2017-09-28 Published:2017-10-03
  • About author:Dr. FANG Tiegang He is a professor in the Mechanical and Aerospace Engineering Department at North Carolina State University. He obtained his Bachelor of Engineering degree from the Automotive Engineering Department with a minor from the Computer Science and Technology Department of Tsinghua University. Before receiving his Ph.D. from the University of Illinois at Urbana-Champaign, he obtained his Master of Sciences degree from the Mechanical and Aerospace Engineering Department at Rutgers University. His research interests include internal combustion engines, alternative fuels including biofuels, high-pressure spray combustion, soot, liquid breakup and atomization, optical diagnostics on reacting flows, heat and mass transfer, and fluid mechanics. He is a member of a few professional societies including the Combustion Institute, the Society of Automotive Engineers (SAE), the Institute for Liquid Atomization and Spray Systems (ILASS), the American Society of Engineering Education (ASEE), and the American Society of Mechanical Engineers (ASME).

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摘要：

       相比于多点电喷(PFI) 发动机，汽油直喷(GDI) 发动机会产生更多的颗粒物(PM) 排放。目前欧洲和中国即将实施更严格的排放法规，尤其对直喷发动机有颗粒物数目(PN) 的要求。为了满足即将到来的严格的排放标准，降低直喷发动机颗粒物排放，本文概略综述了汽油发动机的颗粒物排放（尤其是汽油直喷发动机）的研究工作。讨论了汽油发动机产生颗粒物的过程，对比了直喷和歧管喷射的不同。分析了直喷发动机产生高颗粒物排放的机理。总结了近期关于直喷发动机的研究趋势。讨论了不同降低直喷发动机颗粒物排放的方法。结果表明：即便考虑到燃油消耗和二氧化碳增加的情况，汽油机颗粒物过滤器(GPF) 仍有潜力成为合适并有性价比的一种解决方案。

关键词: 汽车发动机, 颗粒物 (PM) 排放, 颗粒数 (PN) , 汽油直喷 (GDI) , 汽油颗粒过滤器 (GPF)

Abstract:

Gasoline direct injection (GDI) engines produce more particulate matter (PM) emissions compared with port fuel injection (PFI) engines. Facing the upcoming stringent regulations in Europe and China, much attention has been paid to reduce the PM emissions of GDI engines. This article provided a brief overview of the research works on particulate matter emissions of gasoline engines, especially for GDI engines to reduce the particulate matter emission, and to meet the requirement of the upcoming stringent regulation. First, discussed the formation of particulate matter in gasoline engines and the difference between GDI and PFI engines. Then,  analysed the mechanisms leading to the GDI engines’ higher PM emission. Moreover, summarized some recent research and development trends of studies on particulate emissions of GDI engines. At last, discussed different approaches to reduce the particle emissions of GDI engines. The results show that gasoline particle filter (GPF) has good potential to be a suitable and cost effective solution, even when considering the fuel consumption and carbon dioxide penalties.

Key words: vehicle engines, particulate matter (PM) emissions, particle number (PN), gasoline direct injection(GDI),  gasoline particulate filter (GPF)