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公开(公告)号：US09890685B2
公开(公告)日：2018-02-13
申请号：US14928438
申请日：2015-10-30
发明人： Hwa Yong Jang
CPC分类号： F01N11/007 , F01N3/2066 , F01N2550/05 , F01N2560/026 , F01N2610/02 , F01N2900/0416 , F01N2900/0418 , F01N2900/1616 , F01N2900/1622 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： The present disclosure provides a method of diagnosing a failure of a Selective Catalytic Reduction (SCR) system, the method including: injecting urea into the interior of an exhaust pipe using an injector; after the injection step, detecting an amount of NOx and an amount of ammonia through an NOx sensor provided at a rear end of the exhaust pipe; and diagnosing a failure of the injector based on at least one of the amount of NOx and the amount of ammonia.
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公开(公告)号：US09890677B2
公开(公告)日：2018-02-13
申请号：US14570533
申请日：2014-12-15
申请人： Cummins, Inc.
CPC分类号： F01N3/2006 , F01N3/106 , F01N3/2033 , F01N3/208 , F01N11/002 , F01N13/009 , F01N2560/026 , F01N2560/06 , F01N2560/07 , F01N2900/1402 , F01N2900/1404 , F01N2900/1406 , F01N2900/1411 , F01N2900/1812 , G05B23/0283 , G05B23/0286 , G05B23/0294 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An apparatus for controlling a total emissions amount from a facility includes an emissions module structured to interpret data indicative of an emissions amount from a test cell system in the facility; an emissions threshold module structured to aggregate the emissions amount from each test cell system in the facility to determine a total emissions amount for the facility and compare the total emissions amount to a predetermined threshold for the facility; and an aftertreatment system control module structured to selectively control a component in an aftertreatment system associated with each test cell system responsive to the comparison of the total emissions amount to the predetermined threshold.
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公开(公告)号：US20180038302A1
公开(公告)日：2018-02-08
申请号：US15641501
申请日：2017-07-05
IPC分类号： F02D41/14 , F01N3/20 , F01N13/00 , B01D53/94 , F01N9/00 , F02D41/10 , F02D41/40 , F02D41/00 , F01N3/08 , F02D41/02
CPC分类号： F02D41/1454 , B01D53/9418 , B01D53/9431 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2255/2065 , B01D2255/20707 , B01D2255/20738 , B01D2255/20776 , B01D2255/50 , B01D2255/91 , B01D2255/911 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N13/009 , F01N2240/25 , F01N2430/06 , F01N2570/14 , F01N2610/02 , F01N2900/0422 , F01N2900/1602 , F01N2900/1622 , F01N2900/1624 , F01N2900/1812 , F02D41/0002 , F02D41/0007 , F02D41/0047 , F02D41/025 , F02D41/0275 , F02D41/0295 , F02D41/10 , F02D41/1461 , F02D41/405 , F02D2041/389 , F02D2200/0802 , F02D2200/0806 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02D2250/36 , Y02A50/2325 , Y02T10/144 , Y02T10/24 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： An exhaust emission control system of an engine, including an NOx catalyst disposed in an exhaust passage for storing NOx within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored NOx when the air-fuel ratio is approximately stoichiometric or rich, is provided. The system includes an SCR catalyst disposed in the exhaust passage downstream of the NOx catalyst and for purifying NOx within exhaust gas by causing a reaction with ammonia, a controller executing a NOx reduction controlling module for executing a control in which the air-fuel ratio is controlled to a target air-fuel ratio so that the stored NOx is reduced, and an ammonia adsorption amount acquiring module for acquiring an ammonia adsorption amount of the SCR catalyst by detection or estimation. The NOx reduction controlling module controls the target air-fuel ratio to be leaner as the ammonia adsorption amount increases.
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公开(公告)号：US20180038255A1
公开(公告)日：2018-02-08
申请号：US15549236
申请日：2016-02-09
申请人： Cummins, Inc.
发明人： Phanindra V. Garimella , Aniket Gupta , Ming-Feng Hsieh , Paul V. Moonjelly , Anant Puri , Gokul Vishwanathan
CPC分类号： F01N3/208 , F01N3/035 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N2370/04 , F01N2560/021 , F01N2560/06 , F01N2560/14 , F01N2570/18 , F01N2610/02 , F01N2610/03 , F01N2900/0416 , F01N2900/08 , F01N2900/1402 , F01N2900/1404 , F02D35/02 , F02D35/026 , F02D41/0062 , F02D41/0072 , F02D41/1454 , F02D41/1458 , F02D41/1461 , F02D41/1462 , F02D2041/1472 , F02D2041/228 , F02D2200/021 , F02D2200/0418 , F02D2200/0602 , F02D2200/1002 , F02D2200/101 , F02D2250/36 , Y02T10/24 , Y02T10/47
摘要： An apparatus includes an engine module, an in-cylinder content module, and an engine out NOx module. The engine module is structured to interpret engine in-cylinder data regarding an operating condition within a cylinder of an engine, wherein the engine in-cylinder data includes an engine torque, an engine speed, a rail pressure, and a start-of-injection. The in-cylinder content module is structured to interpret at least one additional in-cylinder data point regarding the operating condition within the cylinder of the engine. The engine out NOx module is structured to determine an engine out NOx amount responsive to the engine in-cylinder data and the at least one additional in-cylinder data point.
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公开(公告)号：US20180028975A1
公开(公告)日：2018-02-01
申请号：US15551512
申请日：2016-02-01
申请人： ISUZU MOTORS LIMITED
发明人： Daiji NAGAOKA
CPC分类号： B01D53/9495 , B01D53/94 , B01D53/9422 , B01D53/944 , B01D53/96 , B01D2255/91 , B01D2255/915 , B01J38/02 , F01N3/08 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N2610/06 , Y02T10/24
摘要： There is provided an exhaust gas purification system including a lean NOx trap catalyst device which is provided on an exhaust passage of an internal combustion engine, wherein a control unit for controlling the exhaust gas purification system sets a desulfurization temperature Tt which is a target temperature in executing a desulfurization control on the lean NOx trap catalyst device so as to correspond to an sulfur accumulation amount Sa in the lean NOx trap catalyst device. Thereby, the desulfurization control with superior robustness is executed in which the desulfurization process is executed in an ensured fashion while suppressing the lean NOx trap catalyst device from being thermally deteriorated or fused, whereby the exhaust gas purification system for an internal combustion engine, the internal combustion engine and the exhaust gas purification method for an internal combustion engine which can maintain the NOx purification factor high are provided.
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公开(公告)号：US09879628B2
公开(公告)日：2018-01-30
申请号：US15064809
申请日：2016-03-09
CPC分类号： F02D41/0235 , F01N3/021 , F01N3/0814 , F01N3/0828 , F01N3/0842 , F01N3/0871 , F01N3/2066 , F01N3/2073 , F01N9/00 , F01N11/00 , F01N2430/06 , F01N2560/025 , F01N2560/05 , F01N2560/20 , F01N2570/14 , F01N2570/18 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： In a failure diagnosis device of an emission control system that utilizes an electrode-based PM sensor to diagnose a failure of a particulate filter, some embodiments may be to suppress reduction of accuracy of diagnosis of a failure due to in-cylinder rich control. The failure diagnosis device of the emission control system performs a measurement process. The measurement process includes a sensor recovery process of removing PM depositing between the electrodes of the electrode-based PM sensor, a process of starting application of the predetermined voltage to the electrodes of the PM sensor after completion of the sensor recovery process, and a process of obtaining an output value of the PM sensor after elapse of a predetermined time period since the start of application of the predetermined voltage to the electrodes of the PM sensor.
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公开(公告)号：US09878917B2
公开(公告)日：2018-01-30
申请号：US14419928
申请日：2013-08-09
申请人： AAQIUS & AAQIUS SA
CPC分类号： C01C1/006 , B65D81/3823 , F01N3/2066 , F01N3/208 , F01N3/24 , F01N2610/02 , F01N2610/06 , F01N2610/10 , F01N2610/105 , F01N2610/1406 , F01N2610/1413 , F01N2610/1453 , Y02A50/2325 , Y02T10/24 , Y10T156/10
摘要： Ammonia storage structure, characterized in that it comprises an alternation:—of at least one ammonia storage layer, and—of at least one layer of a thermally conductive material of a thermal conductivity higher than that of the storage layer, the at least one layer of thermally conductive material being intended to increase heat transfers within the structure.
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公开(公告)号：US09878316B2
公开(公告)日：2018-01-30
申请号：US14991272
申请日：2016-01-08
申请人： John L. Casci , Hai-Ying Chen , Joseph Michael Fedeyko , Jillian Elaine Collier , Raj Rao Rajaram , David Thompsett , Robert P. Hodgkins
发明人： John L. Casci , Hai-Ying Chen , Joseph Michael Fedeyko , Jillian Elaine Collier , Raj Rao Rajaram , David Thompsett , Robert P. Hodgkins
IPC分类号： C01B39/54 , B01J29/85 , B01J29/76 , C01B39/10 , B01J37/28 , B01D53/94 , B01J29/70 , C01B39/04 , B01D53/86 , B01J29/88 , B01J35/04 , B01J37/02
CPC分类号： B01J29/763 , B01D53/8628 , B01D53/9418 , B01D2251/2062 , B01D2251/2067 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/707 , B01J29/7015 , B01J29/85 , B01J29/88 , B01J35/04 , B01J37/0246 , B01J37/28 , B01J2229/183 , B01J2229/186 , C01B39/04 , C01B39/10 , C01B39/54 , Y02T10/24
摘要： A catalyst washcoat is provided having a molecular sieve with a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The washcoat includes one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article.
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公开(公告)号：US20180017003A1
公开(公告)日：2018-01-18
申请号：US15644438
申请日：2017-07-07
发明人： Takayuki Yamaguchi , Takashi Tanaka , Kota Matsue , Hiroshi Hayashibara , Yoshiaki Tomita , Kaoru Yamada , Masayuki Tetsuno , Daishi Ikeda , Kazunori Hirasawa , Masanobu Kanno
CPC分类号： F02D41/0275 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N9/00 , F01N2430/06 , F01N2560/026 , F01N2570/14 , F01N2610/02 , F01N2900/0416 , F01N2900/08 , F01N2900/1614 , F02D41/0055 , F02D41/10 , F02D41/1454 , F02D41/1461 , F02D41/405 , F02D2200/0802 , F02D2200/0806 , F02D2200/602 , F02D2250/36 , Y02A50/2325 , Y02A50/2344 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An exhaust emission control system of an engine is provided, which includes a NOx catalyst disposed in an exhaust passage for storing NOx within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored NOx when the air-fuel ratio is approximately stoichiometric or rich. A processor executes a NOx reduction controlling module for performing, when the NOx stored amount exceeds a given amount, a NOx reduction control in which a fuel injector performs a post injection of fuel to continuously control the air-fuel ratio to a target ratio so that the stored NOx is reduced to be below a given amount, the target air-fuel ratio being a ratio at which the stored NOx is reducible, the post injection causing the injected fuel to combust inside a cylinder, the execution of the control permitted when an engine load is within a medium load range.
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公开(公告)号：US20180016958A1
公开(公告)日：2018-01-18
申请号：US15374768
申请日：2016-12-09
发明人： ChangHo JUNG , Pyung Soon KIM
IPC分类号： F01N9/00 , B01D46/00 , B01D53/94 , B01J38/00 , F01N3/20 , F01N13/00 , F01N3/025 , F01N3/035 , F01N11/00
CPC分类号： F01N9/002 , B01D46/0027 , B01D46/006 , B01D53/9422 , B01D53/9495 , B01D2279/30 , B01J38/00 , F01N3/0222 , F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/20 , F01N9/00 , F01N11/002 , F01N11/007 , F01N13/009 , F01N13/0093 , F01N2510/06 , F01N2900/1402 , F01N2900/1602 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.
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