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    SYSTEM FOR INCREASING EFFICIENCY OF AN SCR CATALYST
    4.
    发明申请
    SYSTEM FOR INCREASING EFFICIENCY OF AN SCR CATALYST 审中-公开
    提高SCR催化剂效率的系统

    公开(公告)号：WO2007130212A1

    公开(公告)日：2007-11-15

    申请号：PCT/US2007/006083

    申请日：2007-03-09

    Applicant: CATERPILLAR INC. ,  DRISCOLL, James, J.

    Inventor： DRISCOLL, James, J.

    IPC: F01N3/20

    CPC classification number: F02M43/00 ,  F01N3/2066 ,  F01N2430/04 ,  F01N2610/00 ,  F01N2610/03 ,  F02D19/0655 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/081 ,  F02D19/12 ,  F02D41/0025 ,  F02D41/0275 ,  F02M25/00 ,  F02M37/0064 ,  Y02T10/121 ,  Y02T10/36

    Abstract: A power source (18) has at least one combustion chamber (30), an exhaust system (17) fluidly connected to the at least one combustion chamber and configured to carry an exhaust-gas stream, and a fuel source (38) configured to supply fuel to the at least one combustion chamber. The power source also has an additive supply device (32) configured to supply an ethanol additive to the at least one combustion chamber; and a selective reduction catalyst system catalyst (23) fluidly connected to the exhaust system and configured to receive the exhaust-gas stream.

    Abstract translation: 电源（18）具有至少一个燃烧室（30），与所述至少一个燃烧室流体连接并构造成承载废气流的排气系统（17），以及燃料源（38） 向所述至少一个燃烧室供应燃料。 电源还具有被配置为向至少一个燃烧室供应乙醇添加剂的添加剂供应装置（32） 以及选择性还原催化剂体系催化剂（23），其流体连接到排气系统并且构造成接收排气流。

    SYSTEM FOR SELECTIVE HOMOGENEOUS CHARGE COMPRESSION IGNITION
    5.
    发明申请
    SYSTEM FOR SELECTIVE HOMOGENEOUS CHARGE COMPRESSION IGNITION 审中-公开
    选择性均匀充电压缩点火系统

    公开(公告)号：WO2007089401A1

    公开(公告)日：2007-08-09

    申请号：PCT/US2007/000534

    申请日：2007-01-09

    Applicant: CATERPILLAR INC. ,  ROBEL, Wade, J. ,  DRISCOLL, James, J. ,  EASLEY, William, L., Jr.

    Inventor： ROBEL, Wade, J. ,  DRISCOLL, James, J. ,  EASLEY, William, L., Jr.

    IPC: F02D41/02 ,  F02D41/30 ,  F01N3/20 ,  F02D41/08

    CPC classification number: F02D41/3076 ,  F01N3/206 ,  F02B1/12 ,  F02B23/0669 ,  F02B23/0696 ,  F02B2275/14 ,  F02D41/024 ,  F02D41/08 ,  F02D41/3035 ,  F02D2200/0802 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/128

    Abstract: A method of operating an internal combustion engine (12) may include selectively operating the engine in a first mode of operation, wherein fuel may be injected into compressed fluid to create a substantially heterogeneous mixture of fuel and compressed fluid, and fuel may be ignited by the heat of the compressed fluid. The method may also include selectively operating the engine in a second mode of operation, wherein fuel is injected into gas to create a substantially homogeneous mixture of gas and fuel, the substantially homogeneous mixture is compressed, and fuel is ignited by the heat of the compressed gas. The method may further include determining whether to operate the engine in the first or second mode according to engine conditions.

    Abstract translation: 操作内燃机（12）的方法可以包括以第一操作模式选择性地操作发动机，其中燃料可以被注入到压缩流体中以产生燃料和压缩流体的基本上不均匀的混合物，并且燃料可以被 压缩流体的热量。 该方法还可以包括在第二操作模式中选择性地操作发动机，其中燃料被注入到气体中以产生气体和燃料的基本均匀的混合物，基本均匀的混合物被压缩，并且燃料被压缩的热量点燃 加油站。 该方法还可以包括根据发动机条件确定是否以第一或第二模式操作发动机。

    SELECTIVE CATALYTIC REDUCTION USING CONTROLLED CATALYTIC DEACTIVATION
    8.
    发明申请
    SELECTIVE CATALYTIC REDUCTION USING CONTROLLED CATALYTIC DEACTIVATION 审中-公开
    选择性催化还原使用控制催化脱氢

    公开(公告)号：WO2009140245A3

    公开(公告)日：2010-04-01

    申请号：PCT/US2009043565

    申请日：2009-05-12

    Applicant: CATERPILLAR INC ,  DRISCOLL JAMES J ,  ROBEL WADE J ,  CHAVANNAVAR PRAVEEN S

    Inventor： DRISCOLL JAMES J ,  ROBEL WADE J ,  CHAVANNAVAR PRAVEEN S

    IPC: F01N3/10 ,  B01D53/56 ,  B01D53/94 ,  B01J21/18 ,  F01N3/20 ,  F01N9/00

    CPC classification number: F01N3/2066 ,  B01D53/9409 ,  B01D53/9495 ,  F01N2570/14 ,  F01N2610/03 ,  Y02T10/24

    Abstract: An exhaust treatment control system includes a controller (28) configured to determine a value representative of a NO2 concentration associated with an exhaust gas upstream of a selective catalytic reduction (SCR) catalyst (22), and determine a value representative of a NO concentration associated with the exhaust gas upstream of the SCR catalyst. The controller can also be configured to transmit a signal to at least partially control an injection of a hydrocarbon into the exhaust gas, wherein the hydrocarbon injection can occur upstream of an oxidation catalyst (20) to at least partially decrease the NO2 concentration of the exhaust gas downstream of the oxidation catalyst, and wherein the oxidation catalyst can be located upstream of the SCR catalyst.

    Abstract translation: 排气处理控制系统包括控制器（28），其被配置为确定代表与选择性催化还原（SCR）催化剂（22）上游的废气相关联的NO 2浓度的值，并且确定代表与NO浓度相关联的值 在SCR催化剂上游排出废气。 控制器还可以被配置为传输信号以至少部分地控制将烃注入到废气中，其中烃注入可以发生在氧化催化剂（20）的上游，以至少部分地降低排气的NO 2浓度 气体在氧化催化剂的下游，并且其中氧化催化剂可以位于SCR催化剂的上游。

    EXHAUST SYSTEM IMPLEMENTING SCR AND EGR
    9.
    发明申请
    EXHAUST SYSTEM IMPLEMENTING SCR AND EGR 审中-公开
    排气系统实现SCR和EGR

    公开(公告)号：WO2009099528A2

    公开(公告)日：2009-08-13

    申请号：PCT/US2009/000509

    申请日：2009-01-27

    Applicant: CATERPILLAR INC. ,  ROBEL, Wade, J. ,  DRISCOLL, James, J.

    Inventor： ROBEL, Wade, J. ,  DRISCOLL, James, J.

    IPC: F01N3/28 ,  F01N3/24 ,  F01N3/00 ,  B01D53/86

    CPC classification number: F02M26/15 ,  F01N3/0821 ,  F01N2570/18 ,  F01N2610/02 ,  F02B37/00

    Abstract: An exhaust system (18) for use with an engine (10) is disclosed. The exhaust system may have an exhaust passageway (26), a reduction catalyst (38) located within the exhaust passageway, and a particulate filter (34) located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst (44) located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO2 to the reduction catalyst, and an exhaust gas recirculation loop (22). The exhaust gas recirculation loop may be situated to receive exhaust from the exhaust passageway at a location upstream of the oxidation catalyst and downstream of the particulate filter.

    Abstract translation: 公开了一种与发动机（10）一起使用的排气系统（18）。 排气系统可以具有排气通道（26），位于排气通道内的还原催化剂（38）和位于还原催化剂上游的排气通道内的微粒过滤器（34）。 排气系统还可以具有位于还原催化剂上游的排气通道内的氧化催化剂（44），以提供NO：NO 2与还原催化剂的期望比例和排气再循环回路（22）。 废气再循环回路可以被定位成在氧化催化剂的上游位置和微粒过滤器的下游处接收来自排气通道的排气。

    SYSTEM IMPLEMENTING LOW-REDUCTANT ENGINE OPERATION MODE
    10.
    发明申请
    SYSTEM IMPLEMENTING LOW-REDUCTANT ENGINE OPERATION MODE 审中-公开
    系统实施低能耗发动机运行模式

    公开(公告)号：WO2008054628A1

    公开(公告)日：2008-05-08

    申请号：PCT/US2007/021910

    申请日：2007-10-12

    Applicant: CATERPILLAR INC. ,  DONALDSON, George, E. ,  DRISCOLL, James, J.

    Inventor： DONALDSON, George, E. ,  DRISCOLL, James, J.

    IPC: F01N3/20 ,  F02D41/22

    CPC classification number: F02D41/401 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2900/08 ,  F01N2900/1806 ,  F01N2900/1814 ,  F02D41/0235 ,  F02D41/2422 ,  F02D2250/36 ,  G01F9/001 ,  G01F23/30 ,  Y02T10/24 ,  Y02T10/44

    Abstract: A control system (80) for a power unit (10) having a supply of fuel (22) and a supply of reductant (64) is disclosed. The control system may have a first sensor (24) associated with the supply of fuel to generate a signal indicative of a quantity of fuel remaining. The control system may also have a second sensor (72) associated with the supply of reductant to generate a signal indicative of a quantity of the reductant remaining. The control system may further have a controller (82) in communication with the first and second sensors. The controller may be configured to affect operation of the power unit such that the remaining fuel is consumed before consumption of the remaining reductant.

    Abstract translation: 公开了一种用于具有燃料供应（22）和还原剂供应源（64）的动力单元（10）的控制系统（80）。 控制系统可以具有与燃料供应相关联的第一传感器（24），以产生指示剩余燃料量的信号。 控制系统还可以具有与还原剂的供给相关联的第二传感器（72），以产生指示残留还原剂的量的信号。 控制系统还可以具有与第一和第二传感器通信的控制器（82）。 控制器可以被配置为影响动力单元的操作，使得剩余的燃料在消耗剩余的还原剂之前消耗。

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