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首页> 外文会议>SAE International Fuels and Lubricants Meeting and Exposition >Improving the cold-start performance of alcohol-fueled engines using a rich combustor device
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Improving the cold-start performance of alcohol-fueled engines using a rich combustor device

机译：使用丰富的燃烧装置提高酒精燃料发动机的冷启动性能

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Alcohols (methanol and ethanol) have been identified as having the potential to improve air quality when used to replace conventional gasoline. This potential is primarily due to the different organic species that are emitted by alcohol-fueled engines. The use of "near neat" alcohols gives greater benefits than fuels containing lower levels of alcohol, but neat alcohols present a significant cold-starting problem. The primary objective of this study was to develop a rich combustor device which will extend the cost-start range of alcohol-fueled engines to -30°C. In this approach, a portion of the fuel is burned outside the engine under fuel-rich conditions. This rich combustion creates a product stream that contains significant amounts of hydrogen and carbon monoxide (along with other gases such as carbon dioxide, nitrogen, water vapor, and organics). The hydrogen and carbon monoxide are combustible and non-condensable and provide the fuel for starting the engine. Once the engine starts, the engine transitions to the normal fuel system.
机译：已鉴定醇（甲醇和乙醇）具有在用于代替常规汽油时改善空气质量的潜力。这种潜力主要是由于酒精燃料发动机发射的不同有机物质。使用“近整套”醇具有比含有较低水平的含量的燃料更大的益处，但是整洁的醇类存在显着的感冒起始问题。本研究的主要目标是开发丰富的燃烧器装置，该装置将使醇燃料发动机的成本开始范围延长至-30°C。在这种方法中，在富含燃料的条件下，一部分燃料在发动机之外燃烧。这种富含燃烧产生的产物流含有大量的氢和一氧化碳（以及与二氧化碳，氮气，水蒸气和有机物等其他气体）。氢气和一氧化碳是可燃和不可缩合的并且提供用于启动发动机的燃料。发动机启动后，发动机转换到正常燃料系统。

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