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公开(公告)号：US20240328337A1
公开(公告)日：2024-10-03
申请号：US18742225
申请日：2024-06-13
发明人： Ryan M. Johnson
CPC分类号： F01N3/2066 , F01N3/035 , F01N3/2013 , F01N3/2892 , F01N13/0097 , F01N13/0093 , F01N2240/16 , F01N2610/02 , F01N2610/08
摘要： An exhaust gas aftertreatment system includes: a first decomposition chamber; a first dosing module coupled to the first decomposition chamber and configured to provide a first treatment fluid into the first decomposition chamber; a first conversion catalyst member; a second decomposition chamber; a second dosing module coupled to the second decomposition chamber and configured to provide a second treatment fluid into the second decomposition chamber; a second conversion catalyst member; and a third conversion catalyst member.
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公开(公告)号：US20240254910A1
公开(公告)日：2024-08-01
申请号：US18104420
申请日：2023-02-01
CPC分类号： F01N13/1827 , F01N3/0211
摘要： An aftertreatment system includes an inlet body, a cartridge, and an outlet body. The inlet body includes an inlet body wall and an inlet engagement member. The inlet engagement member includes an inlet engagement member wall and an inlet coupling flange. The inlet coupling flange extends in a downstream direction from the inlet engagement member wall. The cartridge includes a cartridge wall and an adaptor that extends away from the cartridge wall. The outlet body includes an outlet body wall and an outlet engagement member. The outlet engagement member includes an outlet engagement member wall and an outlet coupling flange. The outlet coupling flange extends in an upstream direction from the outlet engagement member wall and towards the adaptor such that the adaptor is disposed between the inlet coupling flange and the outlet coupling flange.
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公开(公告)号：US12013075B2
公开(公告)日：2024-06-18
申请号：US17785291
申请日：2019-12-17
发明人： Jacob D. Canik , Andrew Komisarek , Corey Verseman
CPC分类号： F16L59/182 , F01N13/148 , F16L21/065
摘要： An insulated exhaust gas conduit system includes a first exhaust gas conduit, a second exhaust gas conduit, a first insulation sleeve, and a second insulation sleeve. The first exhaust gas conduit has a first exhaust gas conduit end portion. The second exhaust gas conduit has a second exhaust gas conduit end portion that is configured to engage with the first exhaust gas conduit end portion. The first insulation sleeve includes a first insulation sleeve insulation layer and a first insulation sleeve heat shield. The first insulation sleeve insulation layer is disposed around the first exhaust gas conduit. The first insulation sleeve heat shield is disposed around the first insulation sleeve insulation layer. The first insulation sleeve extends beyond the first exhaust gas conduit end portion. The second insulation sleeve includes a second insulation sleeve insulation layer and a second insulation sleeve heat shield.
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4.发明公开公开(公告)号：US20240141815A1
公开(公告)日：2024-05-02
申请号：US18406857
申请日：2024-01-08
发明人： Samuel Johnson , Nassim Khaled , Patrick C. Hudson
CPC分类号： F01N3/208 , F01N9/00 , B01D53/9418
摘要： A system for controlling reductant spray momentum for a target spray distribution includes an exhaust system having an exhaust conduit with exhaust flowing therethrough, a reductant injection system for injecting reductant into the exhaust flowing through the exhaust system based on one or more injection parameters, a reductant supply system for supplying reductant to the reductant injection system based on one or more supply parameters, and a controller. The controller is configured to access current vehicle, engine, exhaust, or reductant condition parameters, determine one or more control parameters based on a control model and the accessed current vehicle, engine, exhaust, or reductant condition parameters, and modify a value of the one or more injection parameters or the one or more supply parameters to control the reductant spray.
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公开(公告)号：US20240110499A1
公开(公告)日：2024-04-04
申请号：US18530012
申请日：2023-12-05
IPC分类号： F01N3/28 , B01D53/94 , B01J19/00 , B01J23/745 , B01J29/072 , F01N3/021 , F01N3/10 , F01N3/20 , F01N9/00 , F01N13/00 , G05D7/06
CPC分类号： F01N3/2892 , B01D53/9418 , B01D53/9436 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01J19/0033 , B01J23/745 , B01J29/072 , F01N3/021 , F01N3/106 , F01N3/2006 , F01N3/2066 , F01N3/2803 , F01N9/00 , F01N13/011 , G05D7/0635 , B01D2255/20723 , B01D2255/20738 , B01D2255/20761 , B01D2255/904 , B01D2255/915 , F01N2370/04 , F01N2610/1453
摘要： An aftertreatment system includes: a first exhaust gas path comprising a heater; a second exhaust gas path comprising a first decomposition chamber configured to receive reductant and a first selective catalytic reduction catalyst downstream of the first decomposition chamber; a combined exhaust gas path downstream of the first exhaust gas path and the second exhaust gas path, the combined exhaust gas path configured to receive exhaust gas from both the first exhaust gas path and the second exhaust gas path; a selector valve configured to divert the exhaust gas between the first exhaust gas path and the second exhaust gas path based on a temperature of the exhaust gas; and a controller programmed to control the selector valve.
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公开(公告)号：US20230392534A1
公开(公告)日：2023-12-07
申请号：US18035344
申请日：2021-11-05
发明人： Alphonse R. Luecking , Thomas Osgood Roe , Peter C. Christianson , Tyler J. Haverland , Ken Hummel , Timothy C. Clementz
CPC分类号： F01N3/28 , F01N3/2066 , F01N13/017 , B01D53/9418 , B01D53/944 , F01N2610/1453 , F01N2610/04 , F01N2610/02 , B01D2257/404 , B01D2257/702 , B01D2257/502
摘要： An exhaust gas aftertreatment system includes an introduction housing, a transfer housing, a distributing housing, and a first aftertreatment component. The introduction housing is configured to receive an exhaust gas and a treatment fluid. The transfer housing is coupled to the introduction housing and configured to receive the exhaust gas and the treatment fluid from the introduction housing. The distributing housing is coupled to the transfer housing and configured to receive the exhaust gas and the treatment fluid from the transfer housing. The distributing housing includes a distributing housing first panel and a distributing housing first panel opening. The distributing housing first panel opening extends through the distributing housing first panel. The first aftertreatment component is configured to receive at least a portion of the exhaust gas and the treatment fluid from the distributing housing.
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公开(公告)号：US20230392531A1
公开(公告)日：2023-12-07
申请号：US18235231
申请日：2023-08-17
发明人： Colin L. Norris , Matthew Henry , Stephen W. Caddy , Randolph G. Zoran , Stephen M. Holl , Matthew Robert Brookes , Jamie Archer , John M. Clark
IPC分类号： F01N3/20 , F02B37/18 , B01D53/94 , B01F23/213 , B01F25/314 , B01F27/112
CPC分类号： F01N3/2066 , F02B37/183 , B01D53/9431 , B01F23/2132 , B01F25/314 , B01F27/112 , B01F2215/0422 , F01N2610/1453 , F01N2610/1433 , F01N2610/08
摘要： An exhaust gas system includes an engine-turbine exhaust gas conduit, a turbocharger, a turbine-housing exhaust gas conduit, an injection housing, a dosing module, and a bypass system. The engine-turbine exhaust gas conduit is configured to receive exhaust gas. The turbocharger includes a turbine. The turbine is coupled to the engine-turbine exhaust gas conduit. The turbine-housing exhaust gas conduit is coupled to the turbine. The injection housing is coupled to the turbine-housing exhaust gas conduit and centered on an injection housing axis. The dosing module is coupled to the injection housing and includes an injector. The injector is configured to dose reductant into the injection housing. The injector is centered on an injector axis. The bypass system includes a bypass inlet conduit, a bypass valve, and a bypass outlet conduit. The bypass inlet conduit is coupled to the engine-turbine exhaust gas conduit.
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公开(公告)号：US11834978B2
公开(公告)日：2023-12-05
申请号：US17630684
申请日：2019-07-30
发明人： Jacob Backhaus
CPC分类号： F01N3/2033 , B01D53/944 , B01D53/9418 , B01D53/9436 , B01D53/9477 , B01J23/50 , F01N3/106 , F01N3/2066 , F01N13/009 , B01D2255/104 , B01D2255/2092 , F01N2610/02 , F01N2610/1433 , F01N2610/1453
摘要： A vehicle system includes a diesel oxidation catalyst. The vehicle system includes a hydrocarbon-selective catalytic reduction unit located downstream of the diesel oxidation catalyst. The hydrocarbon-selective catalytic reduction unit is configured to receive exhaust gas from the diesel oxidation catalyst. The vehicle system includes a turbocharger located downstream of the hydrocarbon-selective catalytic reduction unit. The turbocharger is configured to receive exhaust gas from the hydrocarbon-selective catalytic reduction unit.
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公开(公告)号：US20230383707A1
公开(公告)日：2023-11-30
申请号：US18231505
申请日：2023-08-08
发明人： Matthew K. Volmerding , Simon Guest
CPC分类号： F02D41/024 , F02D41/042 , F01N3/32 , F01N3/2013 , F01N3/2033 , F02D41/062 , F02B37/12 , F01N3/021 , F01N3/208 , F02B37/04
摘要： A controller for an aftertreatment system coupled to an engine is configured to: in response to receiving an engine shutdown signal, determine an estimated amount of ammonia stored on a selective catalytic reduction (SCR) catalyst included in the aftertreatment system; in response to determining that the estimated amount of ammonia stored in the SCR catalyst is less than an ammonia storage threshold, cause flow of a heated gas towards the SCR catalyst; cause insertion of a reductant into an exhaust gas flowing through the aftertreatment system; and in response to determining that the estimated amount of ammonia stored in the SCR catalyst is equal to or greater than the ammonia storage threshold, cause shutdown of the engine.
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公开(公告)号：US20230287816A1
公开(公告)日：2023-09-14
申请号：US18197930
申请日：2023-05-16
CPC分类号： F01N3/103 , F01N13/009 , B01D53/9477 , B01D53/9495 , B01D53/96 , F01N3/023 , F01N3/2066 , F01N9/002 , F01N3/021 , B01D2251/2067 , B01D2251/208 , F01N2570/04 , F01N2900/1602 , F01N2900/1612
摘要： An aftertreatment system for reducing constituents of an exhaust gas having a sulfur content includes: an oxidation catalyst; a filter disposed downstream of the oxidation catalyst; and a controller configured to, in response to determining that the filter is to be regenerated and a desulfation condition being satisfied: cause a temperature of the oxidation catalyst to increase to a first regeneration temperature that is greater than or equal to 400 degrees Celsius and less than 550 degrees Celsius, cause the temperature of the oxidation catalyst to be maintained at the first regeneration temperature for a first time period, and after the first time period, cause the temperature of the oxidation catalyst to increase to a second regeneration temperature equal to or greater than 550 degrees Celsius.
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