公开(公告)号：US11879368B2

公开(公告)日：2024-01-23

申请号：US17893513

申请日：2022-08-23

申请人： Robert Bosch GmbH

发明人： Frank Goldeck ,  Angela Leo ,  Henrik Smith ,  Isabell Kathrin Ohrnberger ,  Jens Reimer ,  Rouven Leibbrand

IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N3/32 ,  F01N13/08 ,  F01N3/22 ,  F01N3/05 ,  F01N1/14 ,  F01N3/30

CPC分类号： F01N11/007 ,  F01N3/101 ,  F01N1/14 ,  F01N3/05 ,  F01N3/22 ,  F01N3/222 ,  F01N3/225 ,  F01N3/30 ,  F01N3/32 ,  F01N3/323 ,  F01N3/326 ,  F01N13/082 ,  F01N2270/02 ,  F01N2270/04 ,  F01N2270/10 ,  F01N2550/14 ,  F01N2560/07 ,  F01N2610/085

摘要： A method (200) for ascertaining an air volume provided by means of an electric air pump (134) in an exhaust system (120) of an internal combustion engine (110), including detecting at least one activation parameter (5) of the air pump and ascertaining (220) a provided air mass flow rate (8) on the basis of a calculation specification from the at least one activation parameter (5) by utilizing an inertia of the air pump (134) and/or an inertia of the air upstream and/or downstream from the air pump (134) and/or a differential pressure from upstream from the air pump to downstream from the air pump. In addition, a processing unit and a computer program for carrying out a method (200) of this type is provided.

公开(公告)号：US09822685B2

公开(公告)日：2017-11-21

申请号：US14512609

申请日：2014-10-13

申请人： Tenneco Automotive Operating Company Inc.

发明人： Timothy P. Gardner ,  Padmanabha Reddy Ettireddy ,  Adam J. Kotrba ,  Michael Golin

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  F01N2610/02 ,  F01N2610/085 ,  F01N2610/1406 ,  F01N2610/1426 ,  F01N2610/1433 ,  F01N2610/144 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2610/1473 ,  F01N2610/1493 ,  F01N2900/1812 ,  F01N2900/1818 ,  Y02T10/24

摘要： An exhaust aftertreatment system may include a reductant supply and diluent supply conduits, an injector and a control module. The reductant supply conduit includes a first valve controlling a flow of reductant through the reductant supply conduit. The diluent supply conduit includes a second valve controlling a flow of diluent through the diluent supply conduit. The injector is in fluid communication with the reductant supply conduit and the diluent supply conduit and is configured to provide fluid to an exhaust stream. The control module may control the first valve to provide a targeted amount of reductant through the injector. The control module may control the second valve to maintain a fluid flow rate through the injector that is at or above a minimum flow rate threshold of the injector based on a difference between a flow rate through the reductant supply conduit and the minimum flow rate threshold.

公开(公告)号：US20170328252A1

公开(公告)日：2017-11-16

申请号：US15522088

申请日：2015-10-19

申请人： Youchun JIN

发明人： Youchun JIN

IPC分类号： F01N3/20 ,  F01N3/22

CPC分类号： F01N3/208 ,  F01N3/2066 ,  F01N3/222 ,  F01N9/00 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/085 ,  F01N2610/1406 ,  F01N2610/1493 ,  F01N2900/08 ,  Y02T10/24 ,  Y02T10/47

摘要： A device for adjusting and controlling the actual supplied amount of urea entering an exhaust system comprises an electronic control unit (1), a compressed air supply device (2), a urea storage device (3), a compressed air control device (4), a metering pump or a metering valve (5), a spray nozzle (6), a main pipeline (7), a urea pipeline (8), and a urea control device (9). The urea control device (9) is in communication with the electronic control unit (1) and controls the actual supplied amount of urea injected into the exhaust system from the spray nozzle according to the starting time point and the finishing time point. A method for adjusting and controlling the actual supplied amount of urea entering an exhaust system is also disclosed. The present device and method effectively prevent the excessive urea from being injected into the exhaust system, and enable the original exhaust system to match with stricter emission standards through a low cost improvement.

公开(公告)号：US20170058742A1

公开(公告)日：2017-03-02

申请号：US14838804

申请日：2015-08-28

申请人： General Electric Company

发明人： Hua Zhang ,  Gordon Raymond Smith ,  Parag Prakash Kulkarni

IPC分类号： F01N3/20 ,  F01N3/08 ,  B01D53/94

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9418 ,  B01D53/9431 ,  B01D2251/11 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2255/904 ,  B01D2257/404 ,  B01D2257/502 ,  F01D25/305 ,  F01N3/0842 ,  F01N3/2046 ,  F01N3/208 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/085 ,  F01N2610/1433 ,  F01N2610/1453 ,  F02C3/30 ,  Y02E20/16 ,  Y02T10/24

摘要： An exhaust processing system for treating an exhaust gas stream that includes an exhaust duct for directing the exhaust gas stream; a first catalyst positioned within the exhaust duct for receiving the exhaust gas stream flowing therethrough; and an injection system for injecting cooling air and reductant in the exhaust gas stream. The injection system may include: a reductant supply feed for supplying the reductant; a cooling air supply feed for supplying the cooling air; a junction configured at which the reductant supply feed and the cooling air supply feed combine to form a combined supply feed thereafter; and an injector disposed within the exhaust duct to which the combined supply feed connects.

摘要翻译： 一种废气处理系统，用于处理废气流，所述废气流包括用于引导废气流的排气管道; 位于排气管内的第一催化剂，用于接收流过其中的废气流; 以及用于在排气流中注入冷却空气和还原剂的注射系统。 注射系统可以包括：用于供应还原剂的还原剂供应进料; 用于供应冷却空气的冷却空气供给源; 接合部，其中还原剂供给进料和冷却空气供给进料结合在一起形成其后的组合供应进料; 以及设置在组合供应进料连接到的排气管道内的喷射器。

公开(公告)号：US09453446B2

公开(公告)日：2016-09-27

申请号：US14520127

申请日：2014-10-21

申请人： Cummins Emission Solutions, Inc.

发明人： Douglas A. Mitchell

IPC分类号： F01N3/22 ,  F01N3/32 ,  F01N3/20 ,  F02B37/16

CPC分类号： F01N3/206 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/225 ,  F01N3/32 ,  F01N9/00 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/08 ,  F01N2610/085 ,  F01N2610/1453 ,  F01N2900/0414 ,  F01N2900/1812 ,  F01N2900/1824 ,  F02B37/164 ,  Y02T10/24 ,  Y02T10/47

摘要： Exhaust aftertreatment assemblies and methods of manufacturing and operating exhaust aftertreatment assemblies. The exhaust aftertreatment assembly includes a reductant delivery device, a reductant source fluidly coupled to the reductant delivery device, a mixing chamber positioned between the reductant delivery device and the reductant source and thereby fluidly coupling the reductant source to the reductant delivery device, and a compressed air source fluidly coupled to the mixing chamber upstream of the mixing chamber with respect to the reductant delivery device. The compressed air source provides compressed air to mix with reductant in the mixing chamber.

摘要翻译： 排气后处理组件及制造和运行废气后处理组件的方法。 排气后处理组件包括还原剂递送装置，流体耦合到还原剂输送装置的还原剂源，位于还原剂输送装置和还原剂源之间并由此将还原剂源流体耦合到还原剂输送装置的混合室， 空气源相对于还原剂输送装置流体地耦合到混合室上游的混合室。 压缩空气源提供压缩空气与混合室中的还原剂混合。

公开(公告)号：US20140230757A1

公开(公告)日：2014-08-21

申请号：US14237836

申请日：2012-08-06

申请人： Shinya Kondo ,  Ryosuke Tsukamoto ,  Hironori Kitadani ,  Jun Aoki ,  Shinsuke Kiyomiya ,  Kazuyoshi Tashiro ,  Satoshi Kawai ,  Tatsuro Nakata

发明人： Shinya Kondo ,  Ryosuke Tsukamoto ,  Hironori Kitadani ,  Jun Aoki ,  Shinsuke Kiyomiya ,  Kazuyoshi Tashiro ,  Satoshi Kawai ,  Tatsuro Nakata

IPC分类号： F02B43/10

CPC分类号： F02B43/10 ,  F01N3/22 ,  F01N3/32 ,  F01N11/00 ,  F01N2260/26 ,  F01N2550/14 ,  F01N2610/085 ,  F01N2610/1486 ,  F01N2610/1493 ,  Y02T10/20 ,  Y02T10/47

摘要： An internal combustion engine control apparatus includes a secondary air supply device having a secondary air supply passage that supplies secondary air pumped by an air pump into an exhaust system of an internal combustion engine and an opening/closing unit that opens and closes the secondary air supply passage. A controller provided in the internal combustion engine control apparatus sets the opening/closing unit in an open condition such that the secondary air is supplied to the secondary air supply passage, and then executes foreign matter removal control in which the opening/closing unit is opened and closed. As a result, foreign matter caught in an ASV during AI control is removed immediately. By implementing OBD after removing the foreign matter, detection of an open sticking abnormality caused by foreign matter caught in the ASV is suppressed.

摘要翻译： 内燃机控制装置包括二次空气供给装置，该二次空气供给装置具有二次空气供给通路，其将由空气泵泵送的二次空气供给到内燃机的排气系统中，以及打开/关闭二次空气供给的打开/关闭单元 通道。 设置在内燃机控制装置中的控制器将打开/关闭单元设置在打开状态，使得二次空气被供给到二次空气供给通道，然后执行打开/关闭单元打开的异物去除控制 并关闭。 因此，AI控制期间陷入ASV的异物被立即取消。 通过在去除异物之后实施OBD，抑制由ASV中捕获的异物引起的开放粘连异常的检测。

公开(公告)号：US11692471B1

公开(公告)日：2023-07-04

申请号：US17661865

申请日：2022-05-03

申请人： Garrett Transportation I Inc.

发明人： Malay Maniar ,  Jens Keuler ,  Surya Yadla

IPC分类号： F01N3/20 ,  F01N3/32 ,  F01N9/00 ,  F01N3/22

CPC分类号： F01N3/2013 ,  F01N3/323 ,  F01N9/00 ,  F01N3/225 ,  F01N2610/085 ,  F01N2900/10 ,  F01N2900/1602

摘要： In an internal combustion engine system having an emissions control system including an electrically heated catalyst (E-cat) and an E-compressor (either standalone or part of an E-turbocharger), a method for operating the emissions control system includes predicting that a cold start of the engine is imminent, activating the E-cat and the E-compressor in response to the prediction, and monitoring a characteristic parameter Pe of the E-cat as it changes. The E-compressor speed Nc is regulated to change in proportion to the changing Pe while the E-cat is activated. If no engine start occurs, the E-cat is deactivated, and speed Nc is regulated to track the changing Pe.

公开(公告)号：US20150283508A1

公开(公告)日：2015-10-08

申请号：US14245197

申请日：2014-04-04

申请人： Caterpillar Inc.

发明人： Bryan Edward Nelson ,  Kevin L. Dea ,  Brian Cole

IPC分类号： B01D53/94

CPC分类号： B01D53/9495 ,  F01N3/2066 ,  F01N3/208 ,  F01N2590/10 ,  F01N2610/02 ,  F01N2610/085 ,  F01N2610/1433 ,  F01N2610/1473 ,  F01N2900/1808 ,  Y02T10/24

摘要： A reductant dosing system for an engine is disclosed. The disclosed reductant dosing system includes a reservoir of reductant fluid that is connected to an inlet of a reductant pump. The pump has an outlet that is fluidly connected to the reservoir, an inlet of a pressure regulator and an inlet of an injector. The pressure regulator includes a reductant pressure control valve that fluidly connects the outlet of the reductant pump to the reservoir when the reductant pressure control valve is in an open position. A compressed gas source is fluidly connected to an air supply control valve that fluidly connects the compressed gas source to the reservoir when the air supply control valve is in an open position. The air supply control valve also has a closed position and is shifted between the open and closed positions by a controller.

摘要翻译： 公开了用于发动机的还原剂计量系统。 所公开的还原剂计量系统包括连接到还原剂泵的入口的还原剂流体储存器。 泵具有流体连接到储存器的出口，压力调节器的入口和注射器的入口。 压力调节器包括还原剂压力控制阀，当还原剂压力控制阀处于打开位置时，还原剂压力控制阀将还原剂泵的出口流体连接到储存器。 压缩气体源流体地连接到空气供应控制阀，当供气控制阀处于打开位置时，该气源控制阀将压缩气体源流体连接到储存器。 供气控制阀也具有关闭位置，并通过控制器在打开位置和关闭位置之间移动。

公开(公告)号：US09057304B2

公开(公告)日：2015-06-16

申请号：US12810335

申请日：2009-02-02

申请人： Georg Hüthwohl

发明人： Georg Hüthwohl

IPC分类号： F01N3/30 ,  F01N3/20

CPC分类号： F01N3/2066 ,  F01N3/208 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/085 ,  F01N2610/14 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2610/1473 ,  F01N2610/148 ,  F01N2900/1824 ,  Y02T10/24

摘要： The invention relates to a metering system for injecting a urea solution into the exhaust gas flow (9) of an internal combustion engine for selective catalytic reduction, and method for controlling the injecting of a urea solution by means of compressed air, wherein the metering system can be connected to a urea solution tank (1), wherefrom urea solution can be removed, and wherein the metering system can be connected to a compressed air supply (6), wherein the metering system comprises at least one nozzle (5) through which the urea solution can be injected into the exhaust gas flow (9) by means of compressed air, wherein the metering system comprises an air valve (7) by means of which the pressure and/or the quantity of air and/or the valve opening times of the compressed air supply (6) can be regulated, and a sensor for measuring the pressure and/or the quantity of air is disposed in the compressed air supply (6) between the air valve (7) and the nozzle (5), so that the quantity of compressed air fed in for atomizing the urea solution is controlled and lowered to the minimum air quantity required at a given moment, depending on the operating parameters of exhaust gas temperature and exhaust gas mass flow.

摘要翻译： 本发明涉及一种用于将尿素溶液注入用于选择性催化还原的内燃机的排气流（9）中的计量系统，以及用于通过压缩空气喷射尿素溶液的方法，其中计量系统 可以连接到尿素溶液罐（1），尿素溶液罐可以从中除去尿素溶液，并且其中计量系统可以连接到压缩空气供应源（6），其中计量系统包括至少一个喷嘴（5），通过该喷嘴 可以通过压缩空气将尿素溶液注入废气流（9）中，其中计量系统包括空气阀（7），空气阀（7）通过该空气阀和空气的压力和/或数量 可以调节压缩空气供应（6）的时间，并且用于测量空气压力和/或空气量的传感器设置在空气阀（7）和喷嘴（5）之间的压缩空气供应（6）中， ，使c的数量 根据废气温度和废气质量流量的运行参数，进料用于雾化尿素溶液的空气压力被控制并降低到给定时刻所需的最小空气量。

公开(公告)号：US09057302B2

公开(公告)日：2015-06-16

申请号：US14178149

申请日：2014-02-11

申请人： Ford Global Technologies, LLC

发明人： Yasser Mohamed sayed Yacoub

IPC分类号： F01N3/22 ,  F01N3/20 ,  F01N3/30 ,  F01N3/10 ,  F02B37/12 ,  F02B37/16 ,  F01N3/035 ,  F01N13/00 ,  F02B37/18

CPC分类号： F01N3/2006 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2053 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/22 ,  F01N3/30 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/20 ,  F01N2240/36 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/085 ,  F01N2610/1453 ,  F01N2900/1811 ,  F02B37/127 ,  F02B37/168 ,  F02B37/18 ,  F02B37/183 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/26

摘要： A system and method for controlling temperature of a urea reductant to form ammonia for NOx reduction in a selective catalytic reducer coupled to a turbocharged engine exhaust by portioning a flow across the reductant of one or more of the following: a combination of compressed air and ambient air; and/or a combination of the exhaust upstream and downstream the turbine.

摘要翻译： 一种用于控制尿素还原剂的温度的系统和方法，用于在选择性催化还原剂中连接涡轮增压发动机排气以形成用于NOx还原的氨，用于通过分离穿过所述还原剂的流动而将以下一种或多种的一种或多种分配：压缩空气和环境 空气; 和/或涡轮机上游和下游的排气的组合。