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公开(公告)号：US09739761B2
公开(公告)日：2017-08-22
申请号：US14567632
申请日：2014-12-11
Applicant: Michael A Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P Wuttke , Brett Schubring , Craig L Dimaggio , Michael G Zammit , Michael T Vincent
Inventor： Michael A Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P Wuttke , Brett Schubring , Craig L Dimaggio , Michael G Zammit , Michael T Vincent
CPC classification number: G01N33/004 , F01N9/002 , F02B3/06 , G01M15/106 , G01N1/2205 , G01N1/24 , G01N1/38 , G01N15/0656 , G01N33/0037 , Y02A50/245 , Y02A50/25
Abstract: A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20160169784A1
公开(公告)日：2016-06-16
申请号：US14567632
申请日：2014-12-11
Applicant: Michael A. Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P. Wuttke , Brett Schubring , Craig L. Dimaggio , Michael G. Zammit , Michael T. Vincent
Inventor： Michael A. Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P. Wuttke , Brett Schubring , Craig L. Dimaggio , Michael G. Zammit , Michael T. Vincent
CPC classification number: G01N33/004 , F01N9/002 , F02B3/06 , G01M15/106 , G01N1/2205 , G01N1/24 , G01N1/38 , G01N15/0656 , G01N33/0037 , Y02A50/245 , Y02A50/25
Abstract: A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.
Abstract translation: 用于诊断排气系统的颗粒物质（PM）过滤器的性能的诊断系统和方法各自包括由控制器从至少一个传感器接收流过排气系统和PM过滤器的废气的气体成分测量 。 控制器通过PM滤波器计算气体成分的转换效率，将计算出的转换效率与表示流通催化剂的预期转换效率的规定转换效率阈值进行比较。 然后，控制器基于计算的转换效率与预定的转换效率阈值之间的比较来确定PM滤波器是否破裂或损坏。
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3.发明申请DUAL PATH AFTERTREATMENT SYSTEM AND METHOD UTILIZING FUEL AS AN ON-BOARD REDUCTANT FOR NOx SCR 有权双路径后处理系统和使用燃料作为NOx排放减少的板块公开(公告)号：US20160230632A1
公开(公告)日：2016-08-11
申请号：US15018993
申请日：2016-02-09
Applicant: Michael A. Smith , Craig L. Dimaggio , Jeffrey P. Wuttke , Andrew Brocker , Travis T. Hamilton , Ken Hardman , Cody Baldwin-Squib
Inventor： Michael A. Smith , Craig L. Dimaggio , Jeffrey P. Wuttke , Andrew Brocker , Travis T. Hamilton , Ken Hardman , Cody Baldwin-Squib
CPC classification number: F01N3/2073 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/208 , F01N13/008 , F01N13/011 , F01N13/04 , F01N13/107 , F01N2240/25 , F01N2430/02 , F01N2430/06 , F01N2610/02 , F01N2900/1616 , F01N2900/1814 , Y02T10/22 , Y02T10/24
Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.
Abstract translation: 提供了一种用于利用燃料作为板上还原剂用于选择性催化还原NOx的系统和方法，并且包括用于控制发动机以产生稀薄的第一排气流和富集的第二排气流的控制器，所述第一排气流和第二排气流在相应的第一和第二 双路后处理系统的通道。 富含的第二废气流与存储在第二通道的NOx储存和还原催化剂中的NOx反应，以再生该催化剂并产生氨。 具有生成的氨的第一排气流和第二排气流在下游公共通道中组合以形成组合的贫排气流，其中运载在其中的氨由用于NOx还原的公共通道的SCR催化剂储存或使用。 发动机随后被控制以产生富有的第一排气流和贫的第二排气流。
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4.发明授权Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines 有权用于贫燃内燃机排气的双催化剂NOx还原系统公开(公告)号：US08245500B2
公开(公告)日：2012-08-21
申请号：US12217568
申请日：2008-07-07
Applicant: Galen B. Fisher , Craig L. DiMaggio , Ken M. Rahmoeller , Mark C. Sellnau
Inventor： Galen B. Fisher , Craig L. DiMaggio , Ken M. Rahmoeller , Mark C. Sellnau
IPC: F01N3/20
CPC classification number: F01N3/208 , B01D53/9418 , B01D53/9477 , B01D53/9495 , B01D2251/202 , B01D2251/208 , B01D2255/104 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2258/012 , B01D2258/014 , F01N3/2066 , F01N3/2073 , F01N13/0093 , F01N2240/25 , F01N2560/021 , F01N2560/026 , F01N2560/14 , F01N2610/03 , F01N2610/04 , F01N2610/146 , Y02T10/24
Abstract: A method and apparatus for reducing the percentage of nitrogen dioxide and nitrogen monoxide in an exhaust gas stream of an internal combustion engine, comprising the steps of injecting a hydrocarbon compound and optionally hydrogen into the exhaust gas stream; passing the exhaust gas through a first catalyst for selective reduction of a portion of the nitrogen oxides to nitrogen, ammonia, and N-containing species; passing the exhaust gas through a second catalyst for selective reduction of a portion of the nitrogen oxides with ammonia to molecular nitrogen; sensing ammonia concentration in the exhaust gas stream after passage through either or both of the first and second catalysts; and controlling by a controller in a feedback loop the injecting to an amount of hydrocarbon that will produce a predetermined concentration of ammonia and nitrogen oxides at the sensor that will lead to high NOx conversion.
Abstract translation: 一种用于降低内燃机排气流中的二氧化氮和一氧化氮的百分比的方法和装置，包括将烃化合物和任选的氢气注入废气流中的步骤; 使废气通过用于将一部分氮氧化物选择性还原成氮，氨和含氮物质的第一催化剂; 使废气通过第二催化剂，以用氨将氮氧化物的一部分选择性还原成分子氮; 感测通过第一和第二催化剂中的任一个或两者的废气流中的氨浓度; 并且通过控制器在反馈环路中控制注入一定量的碳氢化合物，其将在传感器处产生将导致高NOx转化的预定浓度的氨和氮氧化物。
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5.发明授权公开(公告)号：US09765666B2
公开(公告)日：2017-09-19
申请号：US15018993
申请日：2016-02-09
Applicant: Michael A Smith , Craig L Dimaggio , Jeffrey P Wuttke , Andrew Brocker , Travis T Hamilton , Ken Hardman , Cody Baldwin-Squib
Inventor： Michael A Smith , Craig L Dimaggio , Jeffrey P Wuttke , Andrew Brocker , Travis T Hamilton , Ken Hardman , Cody Baldwin-Squib
CPC classification number: F01N3/2073 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/208 , F01N13/008 , F01N13/011 , F01N13/04 , F01N13/107 , F01N2240/25 , F01N2430/02 , F01N2430/06 , F01N2610/02 , F01N2900/1616 , F01N2900/1814 , Y02T10/22 , Y02T10/24
Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.
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6.发明申请Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines 有权用于贫燃内燃机排气的双催化剂NOx还原系统公开(公告)号：US20100000202A1
公开(公告)日：2010-01-07
申请号：US12217568
申请日：2008-07-07
Applicant: Galen B. Fisher , Craig L. DiMaggio , Ken M. Rahmoeller , Mark C. Sellnau
Inventor： Galen B. Fisher , Craig L. DiMaggio , Ken M. Rahmoeller , Mark C. Sellnau
IPC: F01N3/20
CPC classification number: F01N3/208 , B01D53/9418 , B01D53/9477 , B01D53/9495 , B01D2251/202 , B01D2251/208 , B01D2255/104 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2258/012 , B01D2258/014 , F01N3/2066 , F01N3/2073 , F01N13/0093 , F01N2240/25 , F01N2560/021 , F01N2560/026 , F01N2560/14 , F01N2610/03 , F01N2610/04 , F01N2610/146 , Y02T10/24
Abstract: A method and apparatus for reducing the percentage of nitrogen dioxide and nitrogen monoxide in an exhaust gas stream of an internal combustion engine, comprising the steps of injecting a hydrocarbon compound and optionally hydrogen into the exhaust gas stream; passing the exhaust gas through a first catalyst for selective reduction of a portion of the nitrogen oxides to nitrogen, ammonia, and N-containing species; passing the exhaust gas through a second catalyst for selective reduction of a portion of the nitrogen oxides with ammonia to molecular nitrogen; sensing ammonia concentration in the exhaust gas stream after passage through either or both of the first and second catalysts; and controlling by a controller in a feedback loop the injecting to an amount of hydrocarbon that will produce a predetermined concentration of ammonia and nitrogen oxides at the sensor that will lead to high NOx conversion.
Abstract translation: 一种用于降低内燃机排气流中的二氧化氮和一氧化氮的百分比的方法和装置，包括将烃化合物和任选的氢气注入废气流中的步骤; 使废气通过用于将一部分氮氧化物选择性还原成氮，氨和含氮物质的第一催化剂; 使废气通过第二催化剂，以用氨将氮氧化物的一部分选择性还原成分子氮; 感测通过第一和第二催化剂中的任一个或两者的废气流中的氨浓度; 并且通过控制器在反馈环路中控制注入一定量的碳氢化合物，其将在传感器处产生将导致高NOx转化的预定浓度的氨和氮氧化物。
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