Exhaust purification system of internal combustion engine
    31.
    发明授权
    Exhaust purification system of internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US08534048B2

    公开(公告)日:2013-09-17

    申请号:US13260641

    申请日:2009-11-27

    Applicant: Mikio Inoue

    Inventor: Mikio Inoue

    Abstract: An exhaust purification system of an internal combustion engine provided with an NOx storage reduction catalyst an oxidation catalyst which is arranged downstream of the NOx storage reduction catalyst an exhaust gas tank which is connected to the engine exhaust passage between the NOx storage reduction catalyst and the oxidation catalyst, and a switching valve which closes the engine exhaust passage toward the oxidation catalyst and makes the exhaust gas flow into the tank. When making the air-fuel ratio of the exhaust gas which flows into the NOx storage reduction catalyst rich, the engine exhaust passage toward the oxidation catalyst is shut and the flow path is switched so that the exhaust gas flows to the tank to thereby store the exhaust gas in the tank.

    Abstract translation: 一种内燃机的排气净化系统,其具有NOx吸留还原催化剂,氧化催化剂,其配置在NOx吸留还原催化剂的下游侧,该排气罐与NOx吸留还原催化剂和氧化物之间的发动机排气通路连接 催化剂和切换阀,其将发动机排气通道关闭到氧化催化剂并使排气流入罐中。 当使流入NOx吸留还原催化剂的废气的空燃比变浓时,关闭向发生氧化催化剂的发动机排气通路,切换流路,使得废气流向罐,从而将 罐内的废气。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    32.
    发明申请
    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20130202491A1

    公开(公告)日:2013-08-08

    申请号:US13582862

    申请日:2012-02-07

    Abstract: An exhaust purification system of an internal combustion engine is provided with a hydrocarbon feed valve arranged in an engine exhaust passage and an exhaust purification catalyst for causing NOX contained in exhaust gas and reformed hydrocarbons to react. The exhaust purification catalyst reduces NOX if a concentration of inflowing hydrocarbons vibrates within a predetermined range of amplitude and within a predetermined range of period and increases the amount of storage of NOX if the vibration period of the concentration of hydrocarbons longer is than a predetermined range. When hydrocarbons are being fed from the hydrocarbon feed valve within the predetermined range of amplitude and the predetermined range of period, if the amount of adsorption of hydrocarbons in the exhaust purification catalyst exceeds a predetermined judgment value of the adsorption amount, at least one of reducing amount of feed of hydrocarbons and lengthening feed interval of hydrocarbons is performed.

    Abstract translation: 内燃机的排气净化系统设置有配置在发动机排气通道中的烃进料阀和用于使废气中包含的NO x和重整烃反应的排气净化催化剂。 如果流入的碳氢化合物的浓度在预定的振幅范围内并且在预定的时间范围内振动,则排气净化催化剂会降低NO x,并且如果烃浓度的振动周期长于预定范围,则增加NOX的储存量。 当在预定的振幅范围和预定的时间范围内从烃进料阀进料烃时,如果排气净化催化剂中的烃的吸附量超过吸附量的预定判定值,则至少一个还原 碳氢化合物的进料量和碳氢化合物的进料间隔延长。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    33.
    发明申请
    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20130149198A1

    公开(公告)日:2013-06-13

    申请号:US13262442

    申请日:2010-09-02

    Abstract: In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. A first hydrocarbon feed method which injections hydrocarbons from the hydrocarbon feed valve (15) by predetermined feed intervals (ΔT) so that the air-fuel ratio of the exhaust gas falls to the demanded minimum air-fuel ratio (X) to thereby remove the NOx contained in the exhaust gas and a second hydrocarbon feed method which lowers the feed amount of hydrocarbons from the hydrocarbon feed valve (15) and feeds fuel to the combustion chambers (2) during a second half of the expansion stroke or the exhaust stroke are selectively used.

    Abstract translation: 在内燃机中,在发动机排气通路内配置有碳氢化合物供给阀15和排气净化催化剂13。 一种第一烃进料方法,其通过预定的进料间隔(DeltaT)从烃进料阀(15)喷射烃,使得排气的空燃比降至所需的最小空燃比(X),从而除去 废气中含有的NOx和第二烃进料方法,其在膨胀冲程或排气冲程的后半期间降低来自烃供给阀(15)的烃的进料量并将燃料供给到燃烧室(2) 有选择地使用。

    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    34.
    发明申请
    EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20130081378A1

    公开(公告)日:2013-04-04

    申请号:US13262506

    申请日:2010-03-15

    Abstract: Inside of an engine exhaust passage, in order from an upstream side, a hydrocarbon feed valve oxidation catalyst exhaust purification catalyst, and NOX selective reduction catalyst are arranged. By lowering the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst by a predetermined period while maintaining it lean, the NOx is reduced in the exhaust purification catalyst and the NOX which was not reduced at the exhaust purification catalyst is reduced by the ammonia which is adsorbed at the NOX selective reduction catalyst. The air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst is sometimes switched from lean to rich. At this time, the ammonia which was generated at the exhaust purification catalyst is adsorbed at the NOX selective reduction catalyst.

    Abstract translation: 在发动机排气通道的内部,从上游侧开始,设置烃进料阀氧化催化剂排气净化催化剂和NO x选择还原催化剂。 通过将流入排气净化催化剂的排气的空燃比降低预定的时间,同时保持稀薄,则排气净化催化剂中的NOx减少,并且在排气净化催化剂下没有还原的NO x降低 吸附在NOX选择还原催化剂上的氨。 流入排气净化催化剂的废气的空燃比有时从稀薄转为浓。 此时,在排气净化催化剂上产生的氨被NO X选择还原催化剂吸附。

    Exhaust gas purification system for internal combustion engine
    35.
    发明授权
    Exhaust gas purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US08371111B2

    公开(公告)日:2013-02-12

    申请号:US12666463

    申请日:2008-06-13

    Abstract: An object of the present invention is to prevent an excessive temperature rise of a precatalyst in the case where the precatalyst is provided in the exhaust passage upstream of an exhaust gas purification apparatus and has a heat capacity smaller than that of the exhaust gas purification apparatus, and reducing agent is added from a reducing agent addition valve toward an upstream end surface of the precatalyst. According to the present invention, the reducing agent addition valve is located in such a way that the reducing agent added through it reaches the precatalyst in a liquid state. In the case where the level of activity of the precatalyst is higher than a specific level at the time when the addition of reducing agent through the reducing agent addition valve is performed so as to supply the reducing agent to the precatalyst and the exhaust gas purification apparatus, the reducing agent is added more intensively than in the case where the level of activity of the precatalyst is not higher than the specific level.

    Abstract translation: 本发明的目的是为了防止在排气净化装置的上游侧的排气通路中设置有预催化剂的情况下的预催化剂的过度的升温,并且具有比排气净化装置的热容小的热容量, 并且还原剂从还原剂添加阀向预催化剂的上游端面添加。 根据本发明,还原剂添加阀的位置使得通过其添加的还原剂以液态达到预催化剂。 在进行通过还原剂添加阀添加还原剂以将还原剂供给到预催化剂和排气净化装置的情况下,预催化剂的活性水平高于特定水平的情况下 与预催化剂的活性水平不高于特定水平的情况相比,还原剂的添加量更多。

    Exhaust gas control apparatus for internal combustion engine
    36.
    发明授权
    Exhaust gas control apparatus for internal combustion engine 有权
    内燃机排气控制装置

    公开(公告)号:US08353151B2

    公开(公告)日:2013-01-15

    申请号:US12921045

    申请日:2009-09-03

    Abstract: An exhaust gas control apparatus includes an oxidation catalyst, a compact oxidation catalyst having a smaller cross section than that of an engine exhaust passage, a fuel supply valve, a glow plug, and an electronic control unit. The control modes for the exhaust gas control apparatus include a first control mode where the fuel is supplied from the fuel supply valve, heated by the glow plug, and ignited, a second control mode where the fuel is supplied from the fuel supply valve, and heated by the glow plug but is not ignited, and a third control mode where the fuel is supplied from the fuel supply valve and the glow plug does not provide heating. The electronic control unit selects the first or third control mode in the operation region where ignition is possible, and selects the second or third control mode in the operation region where ignition is not possible.

    Abstract translation: 排气控制装置包括氧化催化剂,具有比发动机排气通道,燃料供给阀,电热塞和电子控制单元的截面小的横截面的紧凑型氧化催化剂。 排气控制装置的控制模式包括第一控制模式,其中燃料从燃料供给阀供应,由电热塞加热并被点燃;第二控制模式,其中燃料从燃料供应阀供应;以及 由电热塞加热但不点燃,并且从燃料供给阀和电热塞供给燃料的第三控制模式不提供加热。 电子控制单元在可能点火的操作区域中选择第一或第三控制模式,并且在不可能点火的操作区域中选择第二或第三控制模式。

    Exhaust gas purification apparatus for internal combustion engine
    37.
    发明授权
    Exhaust gas purification apparatus for internal combustion engine 有权
    内燃机废气净化装置

    公开(公告)号:US08333064B2

    公开(公告)日:2012-12-18

    申请号:US12674111

    申请日:2008-08-06

    Abstract: In an exhaust gas purification apparatus for an internal combustion engine, reducing agent is diffused and the exhaust resistance is made small. The apparatus includes a reducing agent addition valve that injects reducing agent, a reducing agent addition valve mount portion that has a space in which the reducing agent addition valve injects the reducing agent outside a stream of exhaust gas flowing in an exhaust passage of an internal combustion engine and on which the reducing agent addition valve is mounted, and an impingement portion that is provided in the reducing agent addition valve mount portion and on which the reducing agent injected through the reducing agent addition valve impinges, wherein the direction of injection of the reducing agent from the reducing agent addition valve is oriented toward the impingement portion, and toward downstream of the reducing agent addition valve with respect to the exhaust gas flow.

    Abstract translation: 在内燃机的废气净化装置中,还原剂扩散,排气阻力变小。 该装置包括注入还原剂的还原剂添加阀,还原剂添加阀安装部分,其具有空间,还原剂添加阀将还原剂注入到在内燃机的排气通道中流动的排气流之外 发动机,并且安装有还原剂添加阀的冲击部分和设置在还原剂添加阀安装部分中并且通过还原剂添加阀喷射的还原剂撞击的冲击部分,其中, 来自还原剂添加阀的试剂朝向冲击部,朝向排气流的还原剂添加阀的下游。

    Exhaust purification system for internal combustion engine
    38.
    发明授权
    Exhaust purification system for internal combustion engine 失效
    内燃机排气净化系统

    公开(公告)号:US08266896B2

    公开(公告)日:2012-09-18

    申请号:US12450723

    申请日:2008-04-04

    Abstract: A technique is provided that enables reducer concentrations in exhaust gas flowing into an exhaust purification device on the upstream side and an exhaust purification device on the downstream side provided to an exhaust pipe in series to be controlled separately with a simple configuration. Included are the two exhaust purification devices provided to an exhaust passage in series, a bypass passage that bypasses the exhaust purification device on the upstream side, an exhaust control valve provided to the bypass passage, and reducer supply means provided on the upstream side of a branch portion. A reducer is supplied intermittently from the reducer supply means to periodically change the reducer concentration in the exhaust gas, and the exhaust control valve is opened or closed periodically at a predetermined timing with respect to the change in the reducer concentration. Accordingly, the supplied reducer is distributed to be introduced to the exhaust purification device on the upstream side or to be introduced to the exhaust purification device on the downstream side via the bypass passage.

    Abstract translation: 本发明提供一种技术,其能够使排出气体中的上游侧的排气净化装置的浓度和排气管的下游侧的排气净化装置串联进行控制,并以简单的结构分别进行控制。 包括设置在串联排气通道的两个排气净化装置,旁路上游侧的排气净化装置的旁通通路,设置在旁通通路的排气控制阀,以及设置在旁通通路的上游侧的减速器供给单元 分支部分。 从减速器供给装置间歇地供给减速器,以周期性地改变排气中的还原剂浓度,并且在相对于还原剂浓度的变化的预定定时周期性地打开或关闭排气控制阀。 因此,所供给的减速器被分配以在上游侧被引入到排气净化装置,或者经由旁通通路被引入下游侧的排气净化装置。

    Water hammerless valve
    39.
    发明授权
    Water hammerless valve 失效
    无水锤阀

    公开(公告)号:US08210493B2

    公开(公告)日:2012-07-03

    申请号:US12214408

    申请日:2008-06-18

    CPC classification number: F16K31/046 F16K37/00 F16K47/02

    Abstract: A water hammerless valve includes a pneumatically-operated valve having a valve disc for opening and closing a fluid channel by moving upward and downward through a pneumatic actuator operation, and a limiting mechanism for interfering with upward movement of the valve disc when the water hammer occurs. The limiting mechanism includes a stepping motor including a rotation shaft fixed on the upper actuator; a vertical movement component connected to the rotation shaft for moving upward and downward via rotation of the rotation shaft; a lower detecting component for detecting the fact that the vertical movement component contacts the upper end of a stem when the lower detecting component moves downward; and a control device for rotating the stepping motor, for controlling the air supply, and for transmitting a stop signal to the stepping motor when the lower end of the lower detecting component detects the fact.

    Abstract translation: 无水锤阀包括气动阀,其具有阀盘,用于通过气动致动器操作向上和向下移动来打开和关闭流体通道;以及限制机构,用于在发生水锤时干扰阀盘向上运动 。 限制机构包括步进电机,该步进电机包括固定在上致动器上的旋转轴; 连接到旋转轴的垂直运动部件,用于通过旋转轴的旋转而上下移动; 下检测部件,用于检测当下检测部件向下移动时垂直运动部件接触杆的上端的事实; 以及用于旋转步进电机的控制装置,用于控制供气,并且当下部检测部件的下端检测到该事实时,向步进电机发送停止信号。

    METHOD AND APPARATUS FOR PROCESSING EXHAUST GAS IN INTERNAL COMBUSTION ENGINE
    40.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING EXHAUST GAS IN INTERNAL COMBUSTION ENGINE 审中-公开
    在内燃机中处理排气的方法和装置

    公开(公告)号:US20120042632A1

    公开(公告)日:2012-02-23

    申请号:US13140341

    申请日:2010-08-23

    Applicant: Mikio Inoue

    Inventor: Mikio Inoue

    Abstract: An exhaust gas processing apparatus (26) has a bypass passage (31a) arranged in parallel with exhaust turbine (24b), an actuator (33) for opening/closing a bypass valve (32) to open/close the bypass passage, a fuel supplying valve (29) for supplying fuel to an exhaust passage (22a) upstream of a branch portion between the exhaust and bypass passages, a glow plug (30) for igniting the fuel supplied from the fuel valve, and an ECU (13) including a processing mode selecting unit (13k) for selecting a first exhaust gas processing mode for igniting the fuel to introduce the ignited fuel from the bypass passage to an exhaust emission purifier (25), or a second exhaust gas processing mode for introducing the fuel supplied to the exhaust passage through an exhaust turbine (24b) to the exhaust emission purifier without igniting the fuel, based upon whether or not there is a flame failure of the fuel.

    Abstract translation: 排气处理装置(26)具有与排气涡轮(24b)并列配置的旁通通路(31a),用于打开/关闭旁通阀(32)的开闭阀(33),将旁通通路开闭 供给用于向排气通道和旁通通道之间的分支部分上游的排气通道(22a)供应燃料的阀(29),用于点燃从燃料阀供应的燃料的电热塞(30),以及包括 一种处理模式选择单元(13k),用于选择用于点燃燃料的第一废气处理模式以将来自旁路通道的点燃燃料引入废气排放净化器(25),或者用于引入供应的燃料的第二废气处理模式 通过排气涡轮机(24b)到废气排放净化器的排气通道,而不点燃燃料,基于燃料是否存在火焰故障。

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