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    • 1. 发明申请
    • Tug Boat Engine Emissions Control Suite
    • 拖船发动机排放控制套件
    • US20110253103A1
    • 2011-10-20
    • US12840254
    • 2010-07-20
    • Mahesh TalwarFrancois Bernard
    • Mahesh TalwarFrancois Bernard
    • F02D7/00
    • F02M53/02F02D41/401F02D2250/36F02D2250/38F02M57/023F02M59/26F02M59/265Y02T10/44
    • A tug boat diesel engine emissions control suite includes modified fuel injectors including a fuel injection timing retard feature, and diesel fuel heating. Tug boats are now required to comply with USEPA emission standards under 40 CFR Part 94 regulations. Retarding the fuel injection timing reduces peak temperatures during combustion which in turn reduces production of Nitrogen Oxides (NOx) but also increases emissions of particulate matter (PM), Carbon Monoxide (CO), and Hydrocarbons (HC) in the exhaust. Heating the diesel fuel provides a reduction in increased PM, CO, and HC to acceptable levels. Experiments showed that a novel modification to a plunger in the fuel injectors providing up to six degrees of fuel injection timing retarding, and fuel heated to 120 to 140 degrees Fahrenheit, resulted in meeting the 40 CFR Part 94 regulations.
    • 拖船柴油发动机排放控制套件包括改进的燃料喷射器,包括燃料喷射正时延迟特征和柴油燃料加热。 拖船现在需要遵守40 CFR Part 94规定的USEPA排放标准。 燃料喷射时间的延迟降低了燃烧期间的峰值温度,从而降低了氮氧化物(NOx)的产生,同时也增加了废气中的颗粒物质(一氧化碳)和一氧化碳(HC)的排放。 加热柴油可以将PM,CO和HC的增加降低到可接受的水平。 实验表明,对燃料喷射器中的柱塞进行新颖的修改,提供高达六度的燃料喷射正时延迟,并将燃料加热至120至140华氏度,从而达到40 CFR Part 94的规定。
    • 2. 发明申请
    • Locomotive Engine Emissions Control Suite
    • 机车发动机排放控制套件
    • US20110253074A1
    • 2011-10-20
    • US12759890
    • 2010-04-14
    • Mahesh TalwarFrancois Bernard
    • Mahesh TalwarFrancois Bernard
    • F01P7/14F02G5/00F02M69/04F02P5/04
    • F02M31/10F01P2060/10F02D41/401F02M53/02F02M57/023Y02T10/126Y02T10/44
    • A locomotive diesel engine emissions control suite includes retarding fuel injection timing and heating the diesel fuel. Switch locomotives are now required to comply with USEPA emission standards under 40 CFR Part 1033 regulations. Retarding the fuel injection timing reduces peak temperatures during combustion which in turn reduces production of Nitrogen oxides (NOx) but also increases emissions of particulate matter (PM), Carbon Monoxide (CO), and Hydrocarbons (HC) in the exhaust. Unrelated efforts to reduce the smoke in diesel exhaust by pre-heating the diesel fuel showed an unexpected reduction in PM, CO, and HC. Such heating of the diesel fuel did not affect the reduction in NOx but reduced emissions of PM, CO, and HC to acceptable levels. Further experiments showed that two degrees of fuel injection retarding and fuel heated to 120 to 140 degrees Fahrenheit resulted in meeting the 40 CFR Part 1033 regulations.
    • 机车柴油机排放控制套件包括延迟燃油喷射正时和加热柴油。 开关机车现在需要符合40 CFR Part 1033规定中的USEPA排放标准。 燃料喷射时间的延迟降低了燃烧期间的峰值温度,从而降低了氮氧化物(NOx)的产生,同时也增加了废气中颗粒物质(一氧化碳)和一氧化碳(HC)的排放。 通过预热柴油燃料来减少柴油机排气烟雾的不相关努力显示出PM,CO和HC意外减少。 柴油的这种加热不会影响NOx的减少,而是将PM,CO和HC的排放减少到可接受的水平。 进一步的实验表明,两度燃料喷射阻燃和燃料加热到120华氏度至140华氏度,导致符合40 CFR Part 1033规定。