Flexible and renewable fuel combustion engine research - high efficiency enabling with variable charge compression and ultra-high power expansion

随着行业和政府对可再生燃料的兴趣与日俱增，拟议的研究 目标是生物燃料、混合燃料和传统燃料的高效和清洁燃烧。专业知识和 我们清洁柴油发动机实验室(CDEL)的资源将得到充分利用，并增加推力 来自业界的合作伙伴，在燃烧领域取得重大改进和突破 燃油在发动机循环效率上大大超过目前的柴油发动机。合作研究 旨在为汽车和动力生产提供未来新发动机的发展方向 工业。 随着生物燃料性质的变化，先进的燃料输送技术将被开发和 已验证。随着混合的改进，生物燃料的点火将得到严格控制。动态排气 再循环和增压控制将在现有的发动机燃烧和控制研究中发展 CDEL的平台。为了改善生物燃料的混合和点火，需要对可变气门驱动进行试验；它 产生有效可变的压缩比，可通过 高膨胀比发动机。将与福特合作做出广泛努力来提高发动机 生物燃料清洁燃烧下的动力和效率。可再生燃料应用面临的挑战 发动机需要新的控制和硬件改进，包括容忍更高的气缸压力 在高升力和高负荷下。 对可再生燃料的混合、点火和燃烧的更好的理解，特别是在 以前较难达到甚至无法达到的条件将有助于整个行业改善生物燃料 发动机设计。有效利用可再生燃料，包括非食用酒精燃料和其他 生物燃料，将有助于降低二氧化碳摄像。将与业界共同研究智能 柴油和汽油生产发动机，以改善可持续燃料的清洁和高效燃烧。

In-line with growing interests in renewable fuels by the industry and governments, the proposed research targets the efficient and clean combustion of biofuels, fuel blends, and conventional fuels. The expertise and resources of our Clean Diesel Engine Laboratory (CDEL) are to be fully utilized, with the additional thrust from the industrial partners, to make significant improvements and breakthroughs in burning a wide range of fuels at an engine cycle efficiency significantly exceeding the current diesel engines. The collaborative research aims to provide future directions of new engine development for the automotive and power production industry. Commensurate with biofuel property variations, advance fuel delivery techniques are to be developed and verified. With improved mixing, the biofuel ignition is to be tightly controlled. Dynamic exhaust gas recirculation and boost control are to be developed at existing engine combustion and control research platforms at CDEL. The variable valve actuation is to be tested to improve the biofuel mixing and ignition; it produces an effectively variable compression ratio that can raise the engine fuel efficiency substantially via a high expansion ratio engine. Extensive efforts will be made in collaboration with Ford to raise the engine power and efficiency under the clean combustion of biofuels. The renewable fuels application challenges in engines demands new control and hardware improvements, including tolerating a higher cylinder pressure under elevated boost and loads. The improved understanding on mixing, ignition, and combustion for renewable fuels, especially under the previously less attainable or even unattainable conditions will help the entire industry to improve the biofuel engine design. The efficient use of renewable fuels, including the non-food alcohol fuels and the other bio-fuels, shall help to lower the CO2 footage. Researches are to be made jointly with the industry on smart diesel and gasoline production engines to improve the clean and efficient combustion of sustainable fuels.