公开(公告)号：US12037936B1

公开(公告)日：2024-07-16

申请号：US18526081

申请日：2023-12-01

申请人： FCA US LLC

发明人： William Attard ,  Filip Vucak ,  Michael Barkey ,  Jeongyong Choi

IPC分类号： F02B37/18 ,  F01M1/16 ,  F02B39/14 ,  F02D41/00 ,  F01N3/10

CPC分类号： F02B37/183 ,  F01M1/16 ,  F02B39/14 ,  F02D41/0007 ,  F01N3/105 ,  F01N2430/06

摘要： A control system for an engine comprising a turbocharger includes a cold light off catalyst (CLOC), a CLOC valve, an oil control valve and a controller. The CLOC is positioned in a bypass passage around a turbine of the turbocharger. The CLOC valve selectively routes exhaust flow from the engine between the turbine and the CLOC. The oil control valve regulates lubrication oil from the engine to the turbocharger. The controller is configured to command the CLOC valve to a first position whereby exhaust flow is routed to the CLOC in a CLOC mode; determine, based on operation in the CLOC mode, a pressure of the turbine of the turbocharger; compare the determined pressure to a pressure threshold; determine a target position of the oil control valve to mitigate oil leakage from the turbocharger during CLOC operation; and command the oil control valve to the target position.

公开(公告)号：US20180156093A1

公开(公告)日：2018-06-07

申请号：US15366136

申请日：2016-12-01

申请人： Caterpillar Inc.

发明人： Guru Gireesh ,  Arvind Jujare ,  Tim T. Trubnikov

IPC分类号： F01N3/28 ,  F01N3/20 ,  F01N3/035

CPC分类号： F01N3/2892 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/103 ,  F01N3/105 ,  F01N3/206 ,  F01N3/2066 ,  F01N2240/20 ,  F01N2250/02 ,  F01N2470/02 ,  F01N2470/04 ,  F01N2470/18 ,  F02M26/15 ,  F02M26/19 ,  Y02T10/24

摘要： An exhaust aftertreatment system includes a housing including first and second axial ends. An exhaust inlet is disposed adjacent the first axial end. An exhaust outlet is disposed adjacent the second axial end. A catalytic converter is disposed between the first and second axial ends. A diffuser is disposed inside the housing between the first axial end and the catalytic converter. The diffuser includes a shell in communication with the exhaust inlet. The shell includes proximal and distal portions and a front side facing the catalytic converter. The proximal and distal portions are substantially equal in frontal area. The proximal portion is adjacent the exhaust inlet and includes a first plurality of front side openings totaling a first open area and the distal portion includes a second plurality of front side openings totaling a second open area. The first open area is about 1.8-2.2 times the second.

公开(公告)号：US20180135488A1

公开(公告)日：2018-05-17

申请号：US15354191

申请日：2016-11-17

申请人： Ford Global Technologies, LLC

发明人： Cory Scott Hendrickson ,  Michiel J. Van Nieuwstadt ,  Christine Kay Lambert

IPC分类号： F01N3/20 ,  F01N3/10

CPC分类号： F01N3/208 ,  F01N3/105 ,  F01N13/0093 ,  F01N2510/0682 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1602 ,  F01N2900/1808

摘要： Methods and systems are provided for SCR devices cascaded along an exhaust passage. In one example, a method may include adjusting a reductant injection pressure based on a temperature of one or more of the SCR devices.

公开(公告)号：US20170209857A1

公开(公告)日：2017-07-27

申请号：US15482966

申请日：2017-04-10

申请人： Johnson Matthey Public Limited Company

发明人： Guy Richard CHANDLER ,  Alexander Nicholas Michael GREEN ,  Joanne Elizabeth MELVILLE ,  Paul Richard PHILLIPS ,  Stuart David REID

IPC分类号： B01J29/88 ,  B01J29/76 ,  B01J29/00 ,  B01J35/00 ,  F01N3/20 ,  B01J37/02 ,  B01J37/00 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  B01J29/80 ,  B01J35/04

CPC分类号： B01J29/88 ,  B01D53/56 ,  B01D53/8628 ,  B01D53/9413 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/9032 ,  B01D2258/012 ,  B01J29/005 ,  B01J29/0352 ,  B01J29/0354 ,  B01J29/0356 ,  B01J29/0358 ,  B01J29/072 ,  B01J29/46 ,  B01J29/70 ,  B01J29/7007 ,  B01J29/7049 ,  B01J29/7065 ,  B01J29/72 ,  B01J29/7215 ,  B01J29/723 ,  B01J29/74 ,  B01J29/7415 ,  B01J29/743 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/78 ,  B01J29/7815 ,  B01J29/783 ,  B01J29/80 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0215 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/08 ,  B01J37/30 ,  B01J2029/062 ,  F01N3/035 ,  F01N3/0842 ,  F01N3/105 ,  F01N3/2066 ,  F01N13/009 ,  F01N2330/06 ,  F01N2370/04 ,  F01N2510/06 ,  Y02A50/2325 ,  Y02C20/10 ,  Y02T10/24

摘要： A heterogeneous catalyst article having at least one combination of a first molecular sieve having a medium pore, large pore, or meso-pore crystal structure and optionally containing a first metal, and a second molecular sieve having a small pore crystal structure and optionally containing a second metal, and a monolith substrate onto or within which said catalytic component is incorporated, wherein the combination of the first and second molecular sieves is a blend, a plurality of layers, and/or a plurality of zones.

公开(公告)号：US20170107885A1

公开(公告)日：2017-04-20

申请号：US15128535

申请日：2014-10-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Masakazu TABATA

IPC分类号： F01N5/04 ,  F01N3/10 ,  B01D53/94 ,  F02B37/00 ,  B01D46/24 ,  F01N3/021 ,  F01N3/28

CPC分类号： F01N5/04 ,  B01D46/2455 ,  B01D53/94 ,  B01D2046/2492 ,  B01D2275/20 ,  B01D2277/10 ,  B01D2279/30 ,  F01N3/0217 ,  F01N3/10 ,  F01N3/105 ,  F01N3/2803 ,  F01N2330/32 ,  F01N2330/60 ,  F01N2340/06 ,  F02B37/00 ,  Y02T10/144 ,  Y02T10/20

摘要： The invention relates to an exhaust gas purification system applied to an internal combustion engine. The engine has a turbocharger including a turbine wheel and a housing for housing the turbine wheel. The housing defines a turbine outlet passage communicating with an exhaust gas discharging part of the turbine wheel. The engine further has an exhaust passage part communicating with an exhaust gas outlet of the turbine outlet passage. The system comprises an exhaust gas purification apparatus disposed in the exhaust passage part at a position adjacent to the exhaust gas outlet of the turbine outlet passage. Further, the apparatus includes an exhaust gas purification member. The member is provided such that its density in a peripheral part of the exhaust passage part is larger than that in a central part of the exhaust passage part and a flow passage resistance per unit volume of the member at an area of the central part of the exhaust passage part is smaller than that at an area of the peripheral part of the exhaust passage part.

公开(公告)号：US20160245139A1

公开(公告)日：2016-08-25

申请号：US15049753

申请日：2016-02-22

申请人： Johnson Matthey Public Limited Company

发明人： David Michael REPP

IPC分类号： F01N3/02 ,  F01N3/20 ,  F01N3/10

CPC分类号： F01N3/0205 ,  F01N3/105 ,  F01N3/106 ,  F01N3/206 ,  F01N3/2066 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2610/02 ,  F22B37/008 ,  Y02E20/16

摘要： An exhaust system for a power generating apparatus comprising a heat source for combusting a fuel in air to produce power, which exhaust system being adapted to receive a flowing exhaust gas and comprising a catalyst system for treating the exhaust gas, which catalyst system comprising a first oxidation catalyst and a second catalyst, wherein the first oxidation catalyst is positioned downstream from the heat source so that the flowing exhaust gas contacts the first oxidation catalyst before the second catalyst.

摘要翻译： 一种用于发电设备的排气系统，包括用于在空气中燃烧燃料以产生动力的热源，该排气系统适于接纳流动废气并且包括用于处理排气的催化剂系统，该催化剂系统包括第一 氧化催化剂和第二催化剂，其中第一氧化催化剂位于热源的下游，使得流动的废气在第二催化剂之前与第一氧化催化剂接触。

公开(公告)号：US09261032B2

公开(公告)日：2016-02-16

申请号：US13980467

申请日：2011-01-18

申请人： Ryota Onoe ,  Takahiko Fujiwara ,  Makoto Tomimatsu ,  Junichi Suzuki

发明人： Ryota Onoe ,  Takahiko Fujiwara ,  Makoto Tomimatsu ,  Junichi Suzuki

IPC分类号： F01N3/00 ,  F02D41/00 ,  F02D41/02 ,  F02D41/14 ,  F01N3/10 ,  F02D41/12

CPC分类号： F02D41/00 ,  F01N3/101 ,  F01N3/105 ,  F02D41/0295 ,  F02D41/126 ,  F02D41/1439 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D2200/0814 ,  Y02T10/22

摘要： An air-fuel ratio control apparatus for an internal combustion engine of the present invention determines whether or not a lean request has occurred, based on a comparison between a value correlating with an output value of the downstream air-fuel ratio sensor disposed downstream of the catalyst (downstream air-fuel ratio sensor output correlating value) and a predetermined lean request determining value, and determines whether or not a rich request has occurred, based on a comparison between the downstream air-fuel ratio sensor output correlating value and a predetermined rich request determining value. Further, the air-fuel ratio control apparatus calculates a total amount of oxygen (released oxygen amount) released from the catalyst in the rich request occurring period, and calculates an integrated value (present stored oxygen amount) of oxygen stored in the catalyst after a start of the lean request occurring period which follows the rich request occurring period. The apparatus changes the rich request determining value in such a manner that a point in time at which it is determined that the rich request has occurred comes much earlier as the present stored oxygen amount comes closer to the released oxygen amount.

摘要翻译： 本发明的用于内燃机的空燃比控制装置基于与下游空燃比传感器的输出值相关联的值的比较来确定是否发生了精益请求， 催化剂（下游空燃比传感器输出相关值）和预定的稀薄要求确定值，并且基于下游空燃比传感器输出相关值和预定浓度之间的比较来确定是否发生了丰富请求 请求确定值。 此外，空燃比控制装置计算在富请求发生期间从催化剂释放的氧的总量（释放氧量），并计算在催化剂中存储的氧的积分值（存储的氧量） 紧随需求发生期的精益发送期的开始。 该装置以这样一种方式改变富请求确定值，使得确定富请求已经发生的时间点早于当前存储的氧量接近释放的氧量。

公开(公告)号：US09181845B2

公开(公告)日：2015-11-10

申请号：US14381359

申请日：2013-02-20

申请人： Steven Maertens

发明人： Steven Maertens

IPC分类号： F01N3/00 ,  F01N11/00 ,  F01N3/20 ,  F01N3/10 ,  F01N3/021

CPC分类号： F01N11/007 ,  F01N3/021 ,  F01N3/105 ,  F01N3/2066 ,  F01N3/208 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2900/0412 ,  F01N2900/0418 ,  F01N2900/0601 ,  F01N2900/1402 ,  Y02T10/24

摘要： A method for the calculation of the NO2 content at the inlet of a selective catalytic reduction—SCR—device (22) of an exhaust system (4) with: an exhaust pipe (10); a tank for a reducing agent and injection elements (18); a first sensor (20) for measuring the concentration of nitrogen oxides upstream of the SCR; and a second sensor (24) for measuring the concentration of nitrogen oxides downstream of the SCR, includes the following stages: halting the injection of reducing agent; measuring the concentration of nitrogen oxides upstream and downstream of the SCR during a period of time; calculating the amount of NO2 accumulated in the SCR during the period of time; and determining the NO2 content upstream of the SCR from the calculated amount of NO2 accumulated per unit of time.

摘要翻译： 一种用于计算排气系统（4）的选择性催化还原SCR装置（22）的入口处的NO 2含量的方法，其具有：排气管（10）; 用于还原剂和注入元件（18）的罐; 用于测量SCR上游氮氧化物浓度的第一传感器（20）; 和用于测量SCR下游氮氧化物浓度的第二传感器（24）包括以下阶段：停止还原剂的注入; 在一段时间内测量SCR上游和下游的氮氧化物的浓度; 计算一段时间内SCR积累的NO2量; 以及从计算出的每单位时间积累的NO 2量来确定SCR上游的NO2含量。

公开(公告)号：US08899016B2

公开(公告)日：2014-12-02

申请号：US13420936

申请日：2012-03-15

申请人： Jess W. Gingrich ,  Steven H. Almaraz

发明人： Jess W. Gingrich ,  Steven H. Almaraz

IPC分类号： F01N3/00

CPC分类号： F01N3/101 ,  F01N3/105 ,  F01N5/02 ,  F01N13/017 ,  F01N13/107 ,  F01N2410/03 ,  F01N2470/14 ,  F01N2470/16 ,  F01N2470/24 ,  F02B37/00 ,  F02M26/19 ,  F02M26/35 ,  F02M26/43 ,  Y02T10/16 ,  Y02T10/22

摘要： An integrated water-gas-shift (WGS) and emissions control device (ECD) catalyst for treating exhaust from an internal combustion engine. The engine is assumed to have an EGR loop, such that exhaust is recirculated back to the engine's intake. A WGS catalyst on the EGR loop, for conditioning the EGR flow, is integrated with a catalyzed ECD on the main exhaust line, for reducing pollutant emissions.

摘要翻译： 用于处理来自内燃机的排气的综合水煤气变换（WGS）和排放控制装置（ECD）催化剂。 假设发动机具有EGR回路，使得排气再循环回发动机的进气口。 用于调节EGR流量的EGR回路上的WGS催化剂与主排气管线上的催化ECD集成，以减少污染物排放。

公开(公告)号：US08833061B2

公开(公告)日：2014-09-16

申请号：US13442270

申请日：2012-04-09

申请人： Klaus Winkler ,  Thomas Zein

发明人： Klaus Winkler ,  Thomas Zein

IPC分类号： F01N3/00 ,  F02D41/02 ,  F01N3/08 ,  F01N13/04 ,  F01N3/10 ,  F01N3/023 ,  F01N3/28 ,  F02D41/14 ,  F01N3/035

CPC分类号： F02D41/0275 ,  F01N3/023 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/101 ,  F01N3/105 ,  F01N3/2825 ,  F01N13/04 ,  F01N2470/14 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1467 ,  F02D2041/1433 ,  Y02T10/22 ,  Y02T10/26

摘要： A method and device for regenerating an exhaust gas aftertreatment component for filtering soot particles in an engine having a first cylinder group, exhaust gases being guided through an exhaust gas channel and whose fuel/air mixture ratio is set via a fuel metering system, activated via a control unit, by a control loop for setting a lambda value using a signal of a first exhaust gas sensor, in the exhaust gas flow direction upstream from a catalytic converter, having at least another cylinder group, exhaust gases being guided through another exhaust gas channel and whose fuel/air mixture ratio is set via another fuel metering system by another control loop for setting another lambda value based on the signal of another exhaust gas sensor, in the exhaust gas flow direction upstream from a catalytic converter, the separate channels joined together downstream to form a shared channel, having a shared catalytic converter.

摘要翻译： 一种用于再生废气后处理部件的方法和装置，用于对具有第一气缸组的发动机中的烟灰颗粒进行过滤，废气被引导通过排气通道，并且其燃料/空气混合比通过燃料计量系统设定， 控制单元，通过控制回路，用于使用第一排气传感器的信号在催化转化器上游的废气流动方向中设置λ值，该催化转化器具有至少另一个气缸组，废气被引导通过另一排气 并且其燃料/空气混合比率通过另一个控制回路通过另一个燃料计量系统设定，用于根据另一废气传感器的信号在催化转化器上游的废气流动方向上设定另一个λ值， 一起下游形成共享通道，具有共用催化转化器。