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首页> 美国政府科技报告 >A Study of Fuel Economy and Emission Reduction Methods for Marine and Locomotive Diesel Engines.
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A Study of Fuel Economy and Emission Reduction Methods for Marine and Locomotive Diesel Engines.

机译：船用机车柴油机燃油经济性及减排方法研究。

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This interim report presents the results of the first phase of a two-part program to investigate methods of improving fuel consumption and reducing exhaust emissions for in-service diesel engines used as prime movers in locomotives and several classes of Coast Guard vessels. The engines are large,medium-speed units with individual cylinder displacements in excess of 150cubic inches and power ratings from 2000to 4000brake horsepower. The study that is the subject of this report uses information that was obtained from the technical literature and from interviews of engine manufacturers,railroads,and engineering staffs of Coast Guard vessels. Several methods were investigated for their potential to reduce fuel consumption and emissions,within the constraint of maintaining adequate locomotive and vessel operating flexibility and engine life. These methods included the retrofit of engines with existing state-of-the-art components (e.g.,injectors,governor,turbocharger) of improved design,the adjustment of injection timing,and changes in engine operating modes (speed-power points). The effects of engine wear and maintenance on fuel consumption and emissions were investigated,as were the effects of ambient air properties (temperature,pressure,humidity).

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