ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE AND HYDROCARBONS IN EXHAUSTS OF INTERNAL COMBUSTION ENGINES
    3.
    发明申请
    ASSEMBLY AND METHOD FOR REDUCING NITROGEN OXIDES, CARBON MONOXIDE AND HYDROCARBONS IN EXHAUSTS OF INTERNAL COMBUSTION ENGINES 有权
    用于减少内燃机废气中的氮氧化物,一氧化碳和碳氢化合物的组装和方法

    公开(公告)号:US20110265451A1

    公开(公告)日:2011-11-03

    申请号:US12816706

    申请日:2010-06-16

    IPC分类号: F01N3/10 F01N3/18

    摘要: An assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines, wherein the exhaust is acted upon in a first stage catalytic converter. A first portion of the first stage catalytic converter output is cooled and a second portion of the catalytic converter output is not cooled. The cooled and not cooled exhausts are united and directed to a second stage catalytic converter. Air is injected into a selected one of (1) the not cooled exhaust prior to the juncture thereof with the cooled exhaust, and (2) the combined cooled and not cooled exhausts after the juncture thereof.

    摘要翻译: 一种用于还原内燃机排气中的氮氧化物,一氧化碳和碳氢化合物的装置和方法,其中排气在第一级催化转化器中作用。 第一级催化转化器输出的第一部分被冷却,催化转化器输出的第二部分不被冷却。 冷却和未冷却的排气联合并且引导到第二级催化转化器。 空气被注入到(1)未冷却的废气中与冷却的排气接合之前的所选择的一个中,以及(2)在其结合之后的组合的冷却和未冷却的废气。

    Air flow regulation system for exhaust stream oxidation catalyst
    5.
    发明申请
    Air flow regulation system for exhaust stream oxidation catalyst 审中-公开
    排气流氧化催化剂气流调节系统

    公开(公告)号:US20060179824A1

    公开(公告)日:2006-08-17

    申请号:US11399818

    申请日:2006-04-08

    申请人: Ranson Roser

    发明人: Ranson Roser

    IPC分类号: F01N3/00 F02M25/06 F01N3/10

    摘要: An air flow regulation system for enhancing the performance of oxidation catalyst in the exhaust stream of an internal combustion engine is provided wherein air flow into the exhaust upstream of an oxidation catalyst is dynamically controlled via a controlled feedback loop to ensure sufficient oxygen availability to induce enhanced oxidation catalyst performance while simultaneously limiting the exhaust cooling effect of the incoming air stream and the associated loss of catalytic conversion performance. The modulation of air temperature and flow into the exhaust gas stream of a reciprocating internal combustion natural gas fuel engine upstream of an oxidation catalyst is regulated such that oxidation of carbon monoxide, hydrocarbons, and ammonia is achieved to a level beyond the levels attainable and maintainable with a catalyst strategy that relies only upon pre-combustion air/fuel ratio management. In one aspect, the modulation of air flow into the exhaust is via an electronically controlled feedback loop. In another aspect, the induced air is heated to assure catalyst performance and retard the loss of recoverable heat from the exhaust stream for combined heat and power applications.

    摘要翻译: 提供了一种用于提高内燃机排气流中的氧化催化剂性能的气流调节系统,其中通过受控的反馈回路动态地控制在氧化催化剂上游排出的排气中的空气流,以确保足够的氧气可用性以诱导增强 氧化催化剂性能同时限制进入的空气流的排气冷却效果和相关的催化转化性能的损失。 调节空气温度和进入氧化催化剂上游的往复式内燃天然气燃料发动机的废气流中的流量被调节,使得一氧化碳,碳氢化合物和氨的氧化达到超过可获得和可维持水平的水平 其催化剂策略仅依赖于预燃空燃比管理。 在一个方面,通过电子控制的反馈回路调节进入排气的空气流。 另一方面,加热感应空气以确保催化剂性能并延迟来自排气流的可回收热量的损失,以用于组合的热和电力应用。

    EGR cooling and condensate regulation system for natural gas fired co-generation unit
    6.
    发明申请
    EGR cooling and condensate regulation system for natural gas fired co-generation unit 审中-公开
    天然气联合发电机组的EGR冷却和冷凝水调节系统

    公开(公告)号:US20060130470A1

    公开(公告)日:2006-06-22

    申请号:US11317134

    申请日:2005-12-23

    摘要: A recycled exhaust gas cooling and condensate regulation system for a natural gas fired internal combustion engine driven co-generation plant, which allows efficient exhaust recycled gas combustion while maintaining lower head temperatures to reduce thermal NOx emissions and delivering increased process/utility heat to a proximate co-generation client, is provided. The recycled exhaust gas cooling and condensate regulation system has primary and secondary, air-to-gas, exchanger units, coupled in series, such that the first unit, designed to take exhaust gas exiting the engine, cools the gas to a first exhaust gas temperature effectively super saturating the water vapor in the cooled exhaust gas; and, the second unit, designed to handle lower inlet temperatures, condenses the water vapor and super cools the exhaust gas to

    摘要翻译: 一种用于天然气燃烧内燃机驱动的共发电厂的再循环废气冷却和冷凝物调节系统,其允许高效排气再循环燃烧燃烧,同时保持较低的头温度以减少热排放和排放 提供了向邻近联合发电客户端增加的过程/效用热。 回收的废气冷却和冷凝物调节系统具有串联的一次和二次,空气对气体,交换器单元,使得设计成从排气口排出的排气的第一单元将气体冷却至第一废气 温度有效地使冷却废气中的水蒸汽饱和; 并且设计成处理较低入口温度的第二单元将水蒸气冷凝并将废气超冷却至<130°F。在一个实施例中,包括废气的发动机进气混合物被增压。 在另一个实施例中,单独的中间冷却器回路用于在进入进气发动机歧管之前冷却包含再循环气体的压缩进料装置,以进一步降低喷头温度并控制热NO x排放。