公开(公告)号：US20050204729A1

公开(公告)日：2005-09-22

申请号：US11142355

申请日：2005-06-02

申请人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Eiji Iwasaki ,  Shinya Hirota

发明人： Kazuhiro Itoh ,  Toshiaki Tanaka ,  Eiji Iwasaki ,  Shinya Hirota

IPC分类号： F01N3/08 ,  B01D53/90 ,  B01D53/94 ,  C01B21/00 ,  F01N3/00 ,  F01N3/10 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N11/00 ,  F01N13/02 ,  F01N13/04 ,  F02D21/08 ,  F02D41/00 ,  F02D41/02 ,  F02D41/12 ,  F02M25/06 ,  F02M25/07

CPC分类号： B01D53/9409 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/2053 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N13/011 ,  F01N2250/12 ,  F01N2510/063 ,  F01N2510/0682 ,  F01N2560/06 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1622 ,  F02D35/025 ,  F02D41/0055 ,  F02D41/0235 ,  F02D41/123 ,  F02D41/1446 ,  F02D2200/0602 ,  F02D2200/0802 ,  F02M26/13 ,  F02M26/15 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.

公开(公告)号：US06840036B2

公开(公告)日：2005-01-11

申请号：US10231850

申请日：2002-08-30

申请人： Giovanni Fiengo ,  Jeffrey Arthur Cook ,  Jessy W. Grizzle

发明人： Giovanni Fiengo ,  Jeffrey Arthur Cook ,  Jessy W. Grizzle

IPC分类号： F01N11/00 ,  F01N13/02 ,  F01N13/04 ,  F02D41/02 ,  F02D41/14 ,  F02M25/07 ,  F01N3/00

CPC分类号： F02D41/1441 ,  F01N3/101 ,  F01N11/007 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N2550/02 ,  F02D41/0295 ,  F02D41/1443 ,  F02D2200/0814 ,  F02M26/13 ,  Y02T10/22 ,  Y02T10/47

摘要： A system and method for controlling an engine to regulate the oxygen storage level in an emission control device are provided. The system includes oxygen sensors disposed in an exhaust gas stream of the engine upstream and downstream of the emission control device. The oxygen sensors generate a feedgas and tailpipe air fuel signals. The system includes an electronic control unit (ECU) configured to obtain an adjusted feedgas air fuel ratio responsive to the feedgas and tailpipe air fuel signals to correct bias in the feedgas air fuel signal. The (ECU) is further configured to obtain an estimate of an oxygen storage level in the emission control device responsive to the adjusted feedgas air fuel ratio and the tailpipe air fuel signal. Finally, the (ECU) is configured to generate a control signal for the engine responsive to the adjusted feedgas air fuel ratio and the oxygen storage level estimate.

摘要翻译： 提供了一种用于控制发动机以调节排放控制装置中的氧气存储量的系统和方法。 该系统包括设置在排放控制装置的上游和下游的发动机的排气流中的氧传感器。 氧气传感器产生进气和尾气空燃料信号。 该系统包括电子控制单元（ECU），其被配置为响应于进料气和排气管空气燃料信号获得经调整的进料气空燃比，以校正进料气空燃料信号中的偏压。 （ECU）还被配置为响应于调整的进料气空燃比和尾管空气燃料信号而获得排放控制装置中的氧储存量的估计。 最后，（ECU）构成为响应调整后的进料气空燃比和氧气存储量的估计，生成发动机的控制信号。

公开(公告)号：US20040194746A1

公开(公告)日：2004-10-07

申请号：US10827313

申请日：2004-04-20

申请人： Hitachi, Ltd.

发明人： Shiro Yamaoka ,  Toshiharu Nogi ,  Minoru Oosuga ,  Takuya Shiraishi ,  Shinji Nakagawa ,  Yuusuke Kihara

IPC分类号： F01L001/34 ,  F02P005/00

CPC分类号： F02D13/0207 ,  F01L2800/00 ,  F02B1/12 ,  F02B3/06 ,  F02B11/00 ,  F02B77/085 ,  F02D13/0257 ,  F02D13/0276 ,  F02D35/028 ,  F02D41/0002 ,  F02D41/006 ,  F02D41/062 ,  F02D41/123 ,  F02D41/18 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/307 ,  F02D41/3076 ,  F02D2041/001 ,  F02D2041/002 ,  F02M26/01 ,  F02M26/13 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： It is an object of the present invention to provide a compression ignition internal combustion engine capable of making compatible an increase in compression self-ignition operating area with an optimum output torque control in the operating area and also smoothly switching between a self-ignition combustion and a spark ignition combustion. The compression ignition internal combustion engine operates by switching between the spark ignition combustion using an ignition device and the compression ignition combustion which self-ignites a mixture by piston compression. Variable valve mechanisms vary at least one of the valve timings and valve lifts of an intake valve and an exhaust valve. Intake air is regulated to vary the amount of air intake into a combustion chamber on the upstream side of a combustion chamber inlet of the compression ignition internal combustion engine. The variable valve mechanisms and the intake air regulation are controlled during the compression ignition combustion so as to perform the compression ignition combustion.

摘要翻译： 本发明的目的是提供一种压缩点火式内燃机，其能够在操作区域中具有最佳的输出转矩控制来使压缩自点火操作区域的增加相适应，并且还可以在自燃燃烧和 火花点火燃烧。 压燃式内燃机通过使用点火装置的火花点火燃烧和通过活塞压缩自发点燃混合物的压缩点火燃烧之间进行切换来进行动作。 可变阀机构改变进气阀和排气阀的阀正时和阀升程中的至少一个。 调节进气量以改变在压燃式内燃机的燃烧室入口的上游侧进入燃烧室的进气量。 在压缩点火燃烧期间控制可变阀机构和进气调节，以进行压燃点火燃烧。

公开(公告)号：US20040105801A1

公开(公告)日：2004-06-03

申请号：US10659252

申请日：2003-09-11

申请人： Isuzu Motors, Limited

发明人： Hitoshi Sato ,  Naofumi Ochi ,  Masashi Gabe ,  Takehito Imai

IPC分类号： C01B003/00

CPC分类号： B01D53/9454 ,  B01D53/944 ,  B01D53/9495 ,  B01D2255/912 ,  F01N3/0231 ,  F01N3/0821 ,  F01N3/0835 ,  F01N3/0871 ,  F01N9/002 ,  F01N13/0097 ,  F01N2250/14 ,  F01N2330/06 ,  F01N2330/10 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2430/085 ,  F01N2510/065 ,  F01N2550/03 ,  F02D41/029 ,  F02D41/1448 ,  F02D41/402 ,  F02D41/403 ,  F02D2200/0404 ,  F02D2200/0802 ,  F02D2200/501 ,  F02M26/13 ,  Y02T10/22 ,  Y02T10/44

摘要： To provide an exhaust gas purifying method for purifying the exhaust gas of an internal combustion engine (1) by an exhaust gas purifying system (10) having an oxidation catalyst (3a), which comprises the steps of estimating the quantity of unburnt hydrocarbon accumulated in a support of the oxidation catalyst (3a), performing a hydrocarbon removal control when an estimated accumulation quantity (Vhc) of the unburnt hydrocarbon exceeds a predetermined judgment value (Vhc0) and raising an exhaust gas temperature (T) to activate the oxidation catalyst (3a) and oxidizing and removing the accumulated unburnt hydrocarbon. Thereby, it is possible to prevent a white fume from being produced after a low exhaust temperature state of an idling operation or the like continues for a long time.

摘要翻译： 提供一种通过具有氧化催化剂（3a）的排气净化系统（10）对内燃机（1）的排气进行净化的排气净化方法，其特征在于，包括以下步骤：将未燃烧的碳氢化合物的量 氧化催化剂（3a）的载体，当未燃烧烃的估计累积量（Vhc）超过预定判定值（Vhc0）并提高废气温度（T）以使氧化催化剂（T）活化时，进行烃去除控制 3a）并氧化和除去累积的未燃烧的烃。 由此，可以防止在怠速运转等的低排气温度状态等长时间持续之后产生白色烟雾。

公开(公告)号：US20040065274A1

公开(公告)日：2004-04-08

申请号：US10677975

申请日：2003-10-02

发明人： Daniel R. Cohn ,  Leslie Bromberg ,  Alexander Rabinovich ,  John B. Heywood

IPC分类号： F02B023/00 ,  F02M025/07

CPC分类号： F02D41/005 ,  F02B1/12 ,  F02B43/10 ,  F02B47/04 ,  F02B51/00 ,  F02D19/0644 ,  F02D19/0671 ,  F02D19/081 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/3023 ,  F02D2250/36 ,  F02M25/10 ,  F02M26/13 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/47 ,  Y10S123/12

摘要： A hydrogen enhanced engine system using high compression ratio is optimized to minimize NOx emissions, exhaust aftertreatment catalyst requirements, hydrogen requirements, engine efficiency and cost. In one mode of operation the engine is operated very lean (equivalence ratio nullnull0.4 to 0.7) at lower levels of power. Very lean operation reduces NOx to very low levels. A control system is used to increase equivalence ratio at increased torque or power requirements while avoiding the knock that would be produced by high compression ratio operation. The increased equivalence ratio reduces the amount of hydrogen required to extend the lean limit in order to avoid misfire and increases torque and power. The engine may be naturally aspirated, turbocharged, or supercharged.

摘要翻译： 优化了使用高压缩比的氢增强发动机系统，以最大限度地减少NOx排放，废气后处理催化剂要求，氢气需求，发动机效率和成本。 在一种操作模式下，发动机的功率非常低（当量比ø= 0.4至0.7）。 非常精益操作将NOx降低到非常低的水平。 控制系统用于在增加转矩或功率要求的同时提高当量比，同时避免由高压缩比操作产生的爆震。 增加的当量比减少了扩大稀薄极限所需的氢气量，以避免失火并增加扭矩和功率。 发动机可以是自然吸气，涡轮增压或增压。

公开(公告)号：US06705287B2

公开(公告)日：2004-03-16

申请号：US10103620

申请日：2002-03-21

申请人： Johannes Kuenstler ,  Peter Hills ,  Paul Eduard Moraal

发明人： Johannes Kuenstler ,  Peter Hills ,  Paul Eduard Moraal

IPC分类号： F02D902

CPC分类号： F02D9/02 ,  F01P3/20 ,  F01P2025/08 ,  F01P2025/33 ,  F01P2037/02 ,  F01P2060/08 ,  F01P2060/18 ,  F02B3/06 ,  F02D41/068 ,  F02D2009/0225 ,  F02D2009/0244 ,  F02D2009/0288 ,  F02D2041/0022 ,  F02M26/13 ,  F02M2026/004 ,  Y02T10/16

摘要： A method and a regulating arrangement (10) for heating the cab (21) of a vehicle is described. In the event of a start in a cold environment, a heating program is carried out to heat the cab (21) more rapidly, if the diesel engine temperature, measured by a temperature sensor (15), is below a predetermined value. The supply of air to the diesel engine is reduced via the throttle valve (13) to set a currently predetermined intake pressure. If the driver demands a higher acceleration of the vehicle by actuating the accelerator pedal, throttling can be temporarily canceled. When the engine temperature has exceeded a second value, the heating program is terminated and the engine control (10) returns to normal operation. In order to assist the heating phase, in addition, the exhaust-gas recirculation valve (17) may be closed and electrical consumers switched on.

摘要翻译： 描述了用于加热车辆的驾驶室（21）的方法和调节装置（10）。 如果在寒冷环境下开始，则如果由温度传感器（15）测量的柴油发动机温度低于预定值，则进行加热程序以更快速地加热驾驶室（21）。 通过节流阀（13）减少向柴油机供应空气以设定当前预定的进气压力。 如果驾驶员通过启动加速踏板来要求较高的车辆加速度，则可以暂时取消节流。 当发动机温度超过第二值时，加热程序终止，发动机控制（10）恢复正常运行。 为了辅助加热阶段，此外，废气再循环阀（17）可以是关闭的，并且消耗电力的使用者接通。

公开(公告)号：US20040040286A1

公开(公告)日：2004-03-04

申请号：US10231850

申请日：2002-08-30

发明人： Giovanni Fiengo ,  Jeffrey Arthur Cook ,  Jessy W. Grizzle

IPC分类号： F01N003/00

CPC分类号： F02D41/1441 ,  F01N3/101 ,  F01N11/007 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N2550/02 ,  F02D41/0295 ,  F02D41/1443 ,  F02D2200/0814 ,  F02M26/13 ,  Y02T10/22 ,  Y02T10/47

摘要： System and method for controlling an engine to regulate the oxygen storage level in an emission control device are provided. The system includes oxygen sensors disposed in an exhaust gas stream of the engine upstream and downstream of the emission control device. The oxygen sensors generate a feedgas air fuel signal and a tailpipe air fuel signal. The system further includes an electronic control unit configured to obtain an adjusted feedgas air fuel ratio responsive to the feedgas air fuel signal and the tailpipe air fuel signal in order to correct any bias in the feedgas air fuel signal. The electronic control unit is further configured to obtain an estimate of an oxygen storage level in the emission control device responsive to the adjusted feedgas air fuel ratio and the tailpipe air fuel signal. Finally, the electronic control unit is configured to generate a control signal for the engine responsive to the adjusted feedgas air fuel ratio and the oxygen storage level estimate for the emission control device.

摘要翻译： 提供了一种用于控制发动机以调节排放控制装置中的氧气储存水平的系统和方法。 该系统包括设置在排放控制装置的上游和下游的发动机的排气流中的氧传感器。 氧传感器产生进料气空燃料信号和尾管空气燃料信号。 该系统还包括电子控制单元，该电子控制单元被配置为响应于进料气空燃料信号和尾管空气燃料信号而获得经调节的进料气空燃比，以校正进料气空燃料信号中的任何偏压。 电子控制单元还被配置为响应于调节的进料气空燃比和尾管空气燃料信号而获得排放控制装置中的氧气存储量的估计。 最后，电子控制单元被配置为响应于调整的进料气空燃比和排放控制装置的储氧量估计来产生用于发动机的控制信号。

公开(公告)号：US20040035395A1

公开(公告)日：2004-02-26

申请号：US10460574

申请日：2003-06-12

发明人： John B. Heywood ,  Leslie Bromberg ,  Alexander Rabinovich ,  Daniel R. Cohn ,  Jennifer Topinka

IPC分类号： F02M025/10 ,  F02M025/14

CPC分类号： F02B43/10 ,  F02B1/12 ,  F02B11/00 ,  F02B47/04 ,  F02B51/00 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/005 ,  F02D41/3023 ,  F02D41/3035 ,  F02D2250/36 ,  F02M25/10 ,  F02M26/13 ,  Y02T10/32 ,  Y02T10/47

摘要： A method for reducing required octane number and a spark ignition gasoline engine system with hydrogen-enhanced knock resistance. The method for reducing required octane number of gasoline needed to prevent knock includes the addition of hydrogen or hydrogen-rich gas containing carbon monoxide to gasoline. Octane number can be improved by 5 or more for a hydrogen energy fraction of 10%. The spark ignition gasoline engine system includes a spark ignition gasoline engine and a source of gasoline and hydrogen or hydrogen-rich gas. Apparatus is provided to supply the gasoline and the hydrogen or hydrogen-rich gas to the engine at a varying hydrogen or hydrogen-rich gas to gasoline ratio selected both to prevent knock and to ensure a desired level of combustion stability throughout a full range of engine operation. The engine system may be normally aspirated or boosted; the compression ratio may be high such as greater than 11 or below 11, and EGR may be added. The hydrogen or hydrogen-rich gas to gasoline ratio may be controlled as a function of boost pressure, torque, engine speed, or air/fuel mixture ratio.

摘要翻译： 一种减少所需辛烷值的方法和具有氢增强爆震阻力的火花点火汽油发动机系统。 用于减少所需的用于防止爆震的辛烷值的汽油的方法包括向汽油中加入含有一氧化碳的氢或富氢气体。 对于10％的氢能分数，辛烷值可提高5以上。 火花点火汽油发动机系统包括火花点火汽油发动机和汽油和氢气或富氢气体源。 提供装置以将氢气或富氢气体以不同的氢气或富氢气体与汽油比供应给发动机，以选择两者以防止爆震并确保在整个发动机范围内所需的燃烧稳定性水平 操作。 发动机系统可以通常被吸入或升压; 压缩比可以高，例如大于11或低于11，并且可以添加EGR。 可以根据增压压力，转矩，发动机转速或空气/燃料混合比来控制氢气或富氢气体与汽油的比例。

公开(公告)号：US06651616B1

公开(公告)日：2003-11-25

申请号：US09979439

申请日：2002-02-15

申请人： Andreas Juretzka ,  Rolf-Günther Nieberding

发明人： Andreas Juretzka ,  Rolf-Günther Nieberding

IPC分类号： F02B902

CPC分类号： F02D13/0261 ,  F02B1/04 ,  F02B1/12 ,  F02B3/06 ,  F02B11/00 ,  F02B69/00 ,  F02B2075/027 ,  F02D13/0265 ,  F02D21/08 ,  F02D37/02 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/3064 ,  F02D41/402 ,  F02D2250/21 ,  F02M26/01 ,  F02M26/13 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/44 ,  Y02T10/47

摘要： In a method for the operation of a four-stroke reciprocating piston internal combustion engine with alternating compression. ignition and spark ignition, fuel is injected directly, fresh charge is delivered and combustion exhaust gas is led off. At low and medium partial load a partially homogenized, lean basic mixture of air, fuel and retained exhaust gas is formed for the compression ignition, and at higher partial load and at full load a homogeneous, stoichiometric mixture is formed for the spark ignition. Further features include exhaust gas retention, a build-up of exhaust gas and activation injection into the retained exhaust gas. For a smooth transition between the two operating modes, in addition to the co-ordinated interaction of exhaust gas retention, build up of exhaust gas, restriction of the fresh charge, and of the ignition advance angle in spark ignition, together with the quantity and the timing of the fuel injection, use is also made of exhaust gas recirculation.

摘要翻译： 在用于具有交替压缩的四冲程往复活塞式内燃机的操作的方法中。 点火和火花点火，燃油直接注入，新鲜的燃料被输送，燃烧废气被排出。 在低和中等部分负载下，形成用于压缩点火的空气，燃料和保留的废气的部分均匀的贫碱性混合物，并且在较高的部分负荷和满载时，形成用于火花点火的均匀的化学计量混合物。 另外的特征包括废气保留，废气的积聚和被保留的排气中的活化注入。 为了在两种操作模式之间平滑过渡，除了废气保留，排气的积累，新鲜电荷的限制和火花点火中的点火提前角的协调相互作用以及数量和 燃油喷射的时间，也用废气再循环。

公开(公告)号：US06619328B2

公开(公告)日：2003-09-16

申请号：US10084445

申请日：2002-02-28

申请人： Kunio Otsuka

发明人： Kunio Otsuka

IPC分类号： F16L1100

CPC分类号： F16L11/16 ,  F01N13/08 ,  F01N13/1816 ,  F02M26/11 ,  F02M26/13 ,  F02M35/10137 ,  F02M35/10144 ,  F02M35/10301 ,  F02M35/10327 ,  F02M35/1034 ,  F16L11/15

摘要： The present invention provides a tubular member construction capable of preventing the end portion of a flexible pipe formed of a band member from coming loose without costing. The flexible pipe is formed by winding a metallic tubular member in a spiral shape in an overlapped manner, and a plurality of wavy corrugations are formed on the peripheral wall surface of the flexible pipe continuously in the axial direction. In order to prevent a band member located in an end portion of the flexible pipe from coming loose, collapsed portions are formed on corrugations located in the end portions of the tubular member.

摘要翻译： 本发明提供了一种管状构件结构，其能够防止由带构件形成的柔性管的端部松动而不花费成本。 柔性管是通过以重叠的方式卷绕螺旋形的金属管状构件而形成的，并且沿着轴向连续地在柔性管的周壁表面上形成多个波状波纹。 为了防止位于柔性管的端部的带部件松动，在管状部件的端部的波纹上形成有收缩部。