Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines
    28.
    发明授权
    Method for reducing nitric oxide in the exhaust gas flow of internal combustion engines 有权
    减少内燃机废气流中一氧化氮的方法

    公开(公告)号:US08771625B2

    公开(公告)日:2014-07-08

    申请号:US12738385

    申请日:2009-09-03

    Abstract: A method is described for reducing nitrogen oxides in the exhaust gas flow of combustion engines, especially a motor vehicle internal combustion engine, wherein an air/fuel mixture in the combustion chamber of the combustion engine is combusted in the presence of a fuel additive and, in the process, the fuel additive decomposes and the exhaust gas flow is guided through at least one catalyst arranged downstream of the combustion chamber. This method is characterized in that a fuel additive is used, which decomposes in the combustion chamber releasing ammonia and the exhaust gas flow containing ammonia is guided through at least one SCR catalyst arranged downstream of the combustion chamber to reduce the concentration of the nitrogen oxides contained therein. The method according to the invention is highly effective in reducing the nitrogen oxide content in the exhaust gas flow of a combustion engine without an exhaust gas aftertreatment system having to be expensively formed and the installation space having to be increased.

    Abstract translation: 描述了一种用于还原内燃机,特别是机动车辆内燃机的排气流中的氮氧化物的方法,其中燃料发动机的燃烧室中的空气/燃料混合物在燃料添加剂的存在下燃烧, 在该过程中,燃料添加剂分解并且排气流被引导通过布置在燃烧室下游的至少一个催化剂。 该方法的特征在于,使用燃料添加剂,其在燃烧室中分解释放氨,并且含有氨的排气流被引导通过布置在燃烧室下游的至少一个SCR催化剂,以减少所含的氮氧化物的浓度 其中。 根据本发明的方法,在不需要昂贵地形成排气后处理系统并且必须增加安装空间的情况下,能够有效地降低内燃机的废气流中的氮氧化物含量。

    HIGH PERFORMANCE, LOW TOXICITY HYPERGOLIC FUEL
    30.
    发明申请
    HIGH PERFORMANCE, LOW TOXICITY HYPERGOLIC FUEL 有权
    高性能,低毒性超燃料

    公开(公告)号:US20130133242A1

    公开(公告)日:2013-05-30

    申请号:US13748480

    申请日:2013-01-23

    Inventor: Debasis Sengupta

    CPC classification number: C10L1/232 A24C5/601 C06B43/00 C06B47/02

    Abstract: A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than dimethylaminoethylazide (DMAZ) and other potential reduced toxicity replacements for MMH.

    Abstract translation: 一组叔胺叠氮化物可用作高血压双组元推进剂混合物的高通量燃料。 燃料提供比单甲基肼(MMH)更高的密度脉冲,但是毒性较小并且具有较低的MMH蒸气压。 此外,燃料具有比二甲基氨基乙基叠氮化物(DMAZ)更短的点火延迟时间和其他潜在的MMH毒性替代品。

Patent Agency Ranking