Exhaust Gas Post Processing System and Control Method Thereof
    41.
    发明申请
    Exhaust Gas Post Processing System and Control Method Thereof 审中-公开
    废气后处理系统及其控制方法

    公开(公告)号:US20120006005A1

    公开(公告)日:2012-01-12

    申请号:US12949450

    申请日:2010-11-18

    Applicant: Jin Ha Lee

    Inventor: Jin Ha Lee

    Abstract: An exhaust gas processing method may include desulfurizing a catalyst by raising temperature of the catalyst to a predetermined value, if the front/end temperature difference ΔT is less than a predetermined temperature difference X, while reducing agent is being injected, determining whether travel distance, fuel consumption amount, or travel time exceeds a first reference value, after the desulfurization, determining whether fuel is replenished by detecting the fuel amount, and determining whether a high sulfur fuel is refueled or not, if the first reference value does not exceed a predetermined value, the fuel is replenished, and the temperature difference (ΔT) is less than the predetermined temperature difference (X) during injection of the reducing agent. Accordingly, while the nitrogen oxide purification mode is being performed so as to eliminate the nitrogen oxide, the desulfurization control is performed according to a temperature difference between the front and the rear of the catalyst, and if the abnormal desulfurization control is repeatedly performed, it is determined that the high sulfur fuel is replenished. Further, this method has the vehicle driver effectively determine whether the high sulfur fuel is replenished or not and guide the vehicle driver not to replenish the high sulfur fuel some other time.

    Abstract translation: 废气处理方法可以包括:如果前/末温度差Dgr; T小于预定的温度差X,同时还原剂被注入,则确定是否行进,以使催化剂的温度升高到预定值,从而使催化剂脱硫 距离,燃料消耗量或行驶时间超过第一参考值,在脱硫之后,通过检测燃料量确定燃料是否被补充,以及如果第一参考值不超过,则确定是否加油高硫燃料 预定值,补充燃料,并且在注入还原剂期间温度差(&Dgr; T)小于预定温度差(X)。 因此,在进行氮氧化物净化模式以除去氮氧化物的情况下,根据催化剂的前后的温度差进行脱硫控制,如果反复进行异常脱硫控制,则 确定高硫燃料被补充。 此外,这种方法使得车辆驾驶员有效地确定高硫燃料是否被补充,并且引导车辆驾驶员不在其他时间补充高硫燃料。

    Exhaust Purification System for Internal Combustion Engine and Desulfurization Method for the Same
    42.
    发明申请
    Exhaust Purification System for Internal Combustion Engine and Desulfurization Method for the Same 有权
    内燃机排气净化系统及其脱硫方法

    公开(公告)号:US20110126513A1

    公开(公告)日:2011-06-02

    申请号:US12847841

    申请日:2010-07-30

    Abstract: An exhaust purification system for an internal combustion engine, and a desulfurization method for the same, recovers purification performance of a denitrification catalyst by removing sulfur poisoned at the denitrification catalyst in an exhaust system. The exhaust purification system may include an exhaust pipe through which an exhaust gas flows, the exhaust gas being generated at the internal combustion engine having a first injector injecting a fuel to a combustion chamber, a second injector mounted at the exhaust pipe and additionally injecting the fuel, a particulate filter mounted at the exhaust pipe downstream of the second injector and filtering particulate matters (PM) in the exhaust gas, a denitrification catalyst mounted at the exhaust pipe downstream of the particulate filter and reducing nitrogen oxide contained in the exhaust gas, and a control portion performing desulfurization of the denitrification catalyst when a desulfurization entering condition and a desulfurization condition are satisfied during regenerating the particulate filter.

    Abstract translation: 用于内燃机的排气净化系统及其脱硫方法通过去除排气系统中脱氮催化剂中毒的硫来回收脱氮催化剂的净化性能。 排气净化系统可以包括废气流过的排气管,在内燃机处产生的废气具有将燃料喷射到燃烧室的第一喷射器,安装在排气管处的第二喷射器,另外喷射 燃料,安装在第二喷射器下游的排气管和排气中的过滤颗粒物质(PM)的微粒过滤器,安装在微粒过滤器下游的排气管处并且还原废气中包含的氮氧化物的脱氮催化剂, 以及在再生所述微粒过滤器期间满足脱硫进入条件和脱硫条件时,进行脱氮催化剂的脱硫的控制部。

    EXHAUST SYSTEM
    43.
    发明申请
    EXHAUST SYSTEM 审中-公开
    排气系统

    公开(公告)号:US20110047984A1

    公开(公告)日:2011-03-03

    申请号:US12621263

    申请日:2009-11-18

    Abstract: An exhaust system, may include an exhaust line through which exhaust gas passes, a nitrogen oxide purification catalyst that is mounted on the exhaust line to reduce nitrogen oxide of the exhaust gas, an injector that is mounted at an upstream side of the nitrogen oxide purification catalyst to additionally inject fuel such that nitrogen oxide that is trapped in the nitrogen oxide purification catalyst is detached to be reduced thereby, and a control portion that varies an injection pattern of the injector if it is determined that a purification rate of the nitrogen oxide purification catalyst is higher than a first predetermined value.

    Abstract translation: 排气系统可以包括排气通过的排气管,安装在排气管上的氮氧化物净化催化剂,以减少排气的氮氧化物;安装在氮氧化物净化的上游侧的喷射器 催化剂,以附加地注入燃料,从而将氮氧化物净化催化剂中被捕获的氮氧化物分离,由此降低其控制部分,如果确定氮氧化物净化的净化速率,则改变喷射器的喷射模式 催化剂高于第一预定值。

    System for purifying exhaust gas and exhaust system having the same
    46.
    发明授权
    System for purifying exhaust gas and exhaust system having the same 有权
    排气净化系统及其排气系统

    公开(公告)号:US08919103B2

    公开(公告)日:2014-12-30

    申请号:US13307890

    申请日:2011-11-30

    Applicant: Jin Ha Lee

    Inventor: Jin Ha Lee

    Abstract: A system for purifying an exhaust gas and an exhaust system having the same while preventing degradation of a selective reduction catalyst may include an exhaust pipe connected to an engine, the exhaust gas generated at the engine passing through the exhaust pipe, a particulate filter mounted on the exhaust pipe, coated with a selective reduction catalyst adapted to reduce nitrogen oxides contained in the exhaust gas by an injection of a reducing agent, and adapted to trap particulate matters contained in the exhaust gas, and one or more injectors adapted to inject the reducing agent and/or oxygen storage capacity material together or separately into the exhaust gas passing through the exhaust pipe.

    Abstract translation: 用于净化废气的系统和具有该排气系统的排气系统同时防止选择还原催化剂的劣化可以包括连接到发动机的排气管,在通过排气管的发动机处产生的废气,安装在 所述排气管涂覆有选择性还原催化剂,所述选择性还原催化剂适于通过注入还原剂还原废气中包含的氮氧化物,并且适于捕集废气中所含的颗粒物质,以及适于注入还原剂的一个或多个注射器 试剂和/或储氧能力的材料一起或分开地排放到通过排气管的废气中。

    Desulfurization method for LNT system
    48.
    发明授权
    Desulfurization method for LNT system 有权
    LNT系统脱硫方法

    公开(公告)号:US08664139B2

    公开(公告)日:2014-03-04

    申请号:US13315003

    申请日:2011-12-08

    CPC classification number: F02D41/028 F02D41/029 F02D2200/0812

    Abstract: A desulfurization method of a nitrogen oxide absorption catalyst when diesel is used may include determining how many times a regeneration of a diesel particulate filter (DPF) is completed, ending a DPF regeneration, if the number of times of the DPF regeneration reaches a predetermined value and entering into a desulfurization mode to desulfurize the DPF, ending the desulfurization mode after the desulfurization mode is performed for a predetermined time, and calculating a particulate matters (PM) amount that is trapped in the DPF after the desulfurization, compensating the trapped PM amount, and determining a time of the DPF regeneration. A desulfurization timing is determined based on the number of times that the DPF is regenerated to be able to simplify the desulfurization logic and also reduce the memory of ECU, when the LNT catalyst is poisoned by a small amount of sulfur included in exhaust gas.

    Abstract translation: 当使用柴油时,氮氧化物吸收催化剂的脱硫方法可以包括如果DPF再生的次数达到预定值,则确定柴油机微粒过滤器(DPF)的再生次数完成多少次,结束DPF再生 进入脱硫模式,对DPF进行脱硫,在脱硫模式进行规定时间后结束脱硫模式,计算脱硫后的DPF中捕集的颗粒物质(PM)的量,补偿被捕获的PM量 ,并确定DPF再生的时间。 当LNT催化剂被废气中包含的少量硫中毒时,基于DPF再生次数能够简化脱硫逻辑并减少ECU的存储量来确定脱硫时间。

    SYSTEM FOR PURIFYING EXHAUST GAS AND METHOD FOR CONTROLLING THE SAME
    50.
    发明申请
    SYSTEM FOR PURIFYING EXHAUST GAS AND METHOD FOR CONTROLLING THE SAME 有权
    用于净化排气的系统及其控制方法

    公开(公告)号:US20130061573A1

    公开(公告)日:2013-03-14

    申请号:US13315223

    申请日:2011-12-08

    Abstract: An exhaust gas purification device may deactivate at least one of cylinders to supply a gasoline particulate filter with sufficient air according to a driving condition of a gasoline engine, and a control method thereof and a control method thereof may include comparing a pressure difference of the gasoline particulate filter with a predetermined value, determining a cylinder that may be to be deactivated when the pressure difference may be larger than the predetermined value, regenerating the gasoline particulate filter by supplying it with air through the deactivated cylinder, determining whether the engine may be in an over-run condition during the regeneration process, and returning to a general driving condition in a case that the engine may be in the over-run condition.

    Abstract translation: 废气净化装置可以根据汽油发动机的驱动条件使气缸中的至少一个停止供给具有足够空气的汽油微粒过滤器,其控制方法及其控制方法可以包括比较汽油的压力差 确定具有预定值的微粒过滤器,当压力差可能大于预定值时,确定可以被去激活的气缸;通过将汽油微粒过滤器通过停用气缸供给空气来重新生成汽油微粒过滤器;确定发动机是否在 在再生过程中的过载状态,并且在发动机可能处于过运行状态的情况下返回到一般驾驶状态。

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