-
公开(公告)号：US11905874B2
公开(公告)日：2024-02-20
申请号：US17897467
申请日：2022-08-29
发明人： Samuel Johnson , Nassim Khaled , Patrick C. Hudson
CPC分类号： F01N3/208 , F01N9/00 , B01D53/9418 , F01N2610/02 , F01N2610/146 , F01N2610/1453 , F01N2900/08 , F01N2900/1404 , F01N2900/1406 , F01N2900/1411 , F01N2900/1808 , F01N2900/1811 , F01N2900/1821 , F01N2900/1824 , Y02T10/12
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.
-
公开(公告)号：US11834979B2
公开(公告)日：2023-12-05
申请号：US17350262
申请日：2021-06-17
发明人： Samuel Johnson , John G. Buechler , Matthew K. Volmerding , Jacob W. Brown , Gaurav Hemant Pandit
CPC分类号： F01N3/206 , F01N13/146 , F01N2610/146 , F01N2610/1406 , F01N2610/1433 , F01N2610/1473 , F01N2900/1808 , F01N2900/1821
摘要： A lance injector assembly for an exhaust component includes: a shaft configured to extend into an exhaust conduit of the exhaust component, the shaft being hollow so as to define a channel therethrough, wherein an opening is defined in a wall of the shaft proximate to a second end of the shaft that is opposite the first end; a cap coupled to a first end of the shaft; and a supply line disposed within the channel defined by the shaft, wherein a nozzle is disposed at a downstream end of the supply line, the nozzle being fluidly coupled to the shaft around the opening such that reductant is able to flow from the nozzle through the opening and into an exhaust gas flowing through the exhaust conduit. Air is present in the space between the supply line and the wall of the shaft, the air inhibiting heat transfer to the supply line.
-
公开(公告)号：US20230016427A1
公开(公告)日：2023-01-19
申请号：US17947822
申请日：2022-09-19
发明人： Matthew K. Volmerding , Ryan M. Johnson , Jim L. Alonzo , Samuel Johnson , Apoorv Kalyankar , Pranjal Naik , Kartiki Jagtap , Mahendra Mittapalli
IPC分类号： F01N3/28 , B01D53/94 , F01N3/20 , B01F25/313
摘要： A mixing assembly for an exhaust system can include an outer body, a front plate, a back plate, a middle member, and an inner member. The outer body defines an interior volume and has a center axis. The front plate defines an upstream portion of the interior volume and the back plate defines a downstream portion of the interior volume. The middle member is positioned transverse to the center axis and defines a volume. The inner member is positioned coaxially with the middle member inside the middle member. The front plate includes inlets configured to direct exhaust to (i) a first flow path into an interior of the inner member, (ii) a second flow path into the volume of the middle member between a sidewall of the middle member and a sidewall of the inner member, and (iii) a third flow path into the interior volume of the outer body.
-
公开(公告)号：US20230003158A1
公开(公告)日：2023-01-05
申请号：US17851361
申请日：2022-06-28
发明人： Gaurav Hemant Pandit , Allick Mounir Olive , Sagar Maruti Jarali , Narenthiran Thangamuthu , Ramesh Ramavath , Alex Harrington , Samuel Johnson , Sriram Narayanasamy , Enoch Nanduru , George Eugene Mavroudis
IPC分类号： F01N3/20 , F01N3/28 , B01D53/94 , B01F23/213 , B01F25/313 , B01F25/431
摘要： A decomposition chamber for an exhaust aftertreatment system includes an inlet conduit centered on an inlet conduit axis and configured to receive exhaust, a decomposition conduit coupled to the inlet conduit, an endcap coupled to the decomposition conduit, and an injector coupled to the endcap and configured to provide reductant into the decomposition conduit along an injection axis. The decomposition chamber includes a guide swirl mixer coupled to at least one of the inlet conduit or the endcap. The guide swirl mixer includes a first portion disposed within the inlet conduit, and a second portion disposed within the decomposition conduit such that the inlet conduit axis extends through the second portion. The second portion extends at least partially around the injection axis.
-
公开(公告)号：US20220186651A1
公开(公告)日：2022-06-16
申请号：US17688281
申请日：2022-03-07
发明人： Samuel Johnson , Ryan M. Johnson , Kartiki Jagtap , Enoch Nanduru , Mahendra Mittapalli , Udit Bhaveshkumar Shah , Suraj D. Khalate , Pradnya Chandrakant Joshi , Vinay Kumar Joshi , Vaidyanadan Sundaram
摘要： A decomposition chamber for an aftertreatment system includes: a body comprising: an inlet configured to receive exhaust gas, an outlet configured to expel the exhaust gas, a thermal management chamber in fluid communication with the inlet, the thermal management chamber configured to receive an exhaust gas first portion from the inlet, an exhaust assist chamber in fluid communication with the inlet, the exhaust assist chamber configured to receive an exhaust gas second portion from the inlet, and a main flow chamber in fluid communication with the inlet, the main flow chamber configured to receive an exhaust gas third portion from the inlet, receive the exhaust gas first portion from the thermal management chamber, and receive the exhaust gas second portion from the exhaust assist chamber.
-
公开(公告)号：USRE48525E1
公开(公告)日：2021-04-20
申请号：US16575187
申请日：2019-09-18
发明人： George L. Muntean , Steve Holl , Joydeep Chakrabarti , John Anthis , Joshua D. Henry , Samuel Johnson , Andrew Myer , John K. Heichelbech
摘要： An exemplary embodiment includes a blending chamber having a urea inlet, a blending chamber gas inlet, and a blending chamber outlet. A urea source provides a pressurized urea solution to the urea inlet at a urea injection pressure, and a pressurized gas source transmits pressurized gas to the blending chamber gas inlet via a passageway. The passageway is configured to decrease pressure of the pressurized gas transmitted along its length from a first pressure of gas received from the pressurized gas source to a second pressure of gas provided to the blending chamber gas inlet. The first pressure of gas received from the pressurized gas source is greater than the urea injection pressure and the second pressure of gas provided to the blending chamber gas inlet is less than the urea injection pressure.
-
公开(公告)号：US10408110B2
公开(公告)日：2019-09-10
申请号：US16011121
申请日：2018-06-18
摘要： A decomposition reactor for an exhaust system includes an exterior component defining an internal volume and having an inlet and an outlet with the inlet and outlet are formed on a same side of the exterior component. A flow divider is positioned within the internal volume and defines a thermal management chamber and a main flow chamber. A first flow path of exhaust flows from the inlet into the main flow chamber to mix with dosed, and a second flow path of exhaust flows from the inlet into the thermal management chamber to control a temperature of a portion of the flow divider. In some implementations, one or more swirling diverters can be coupled to the flow divider and positioned proximate the outlet of the exterior component to impart a vortical motion to a combined reductant and exhaust gas flow exiting out the outlet.
-
公开(公告)号：US09926822B2
公开(公告)日：2018-03-27
申请号：US13969039
申请日：2013-08-16
发明人： George L. Muntean , Steve Holl , Joydeep Chakrabarti , John Anthis , Joshua D. Henry , Samuel Johnson , Andrew Myer
CPC分类号： F01N3/2066 , B01F3/04049 , B01F5/045 , B01F2005/0017 , F01N2610/02 , F01N2610/14 , F01N2610/146 , F01N2610/1493 , Y02T10/24
摘要： An exemplary embodiment includes a blending chamber having a urea inlet, a blending chamber gas inlet, and a blending chamber outlet. A urea source provides a pressurized urea solution to the urea inlet at a urea injection pressure, and a pressurized gas source transmits pressurized gas to the blending chamber gas inlet via a passageway. The passageway is configured to decrease pressure of the pressurized gas transmitted along its length from a first pressure of gas received from the pressurized gas source to a second pressure of gas provided to the blending chamber gas inlet. The first pressure of gas received from the pressurized gas source is greater than the urea injection pressure and the second pressure of gas provided to the blending chamber gas inlet is less than the urea injection pressure.
-
9.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.
-
公开(公告)号：US11753979B2
公开(公告)日：2023-09-12
申请号：US17636928
申请日：2019-08-22
CPC分类号： F01N3/28 , F01N3/2073 , F01N3/34
摘要： An ammonia generating apparatus comprises a housing comprising a first end wall on which a reductant injector configured to insert a reductant into the housing is mountable. A heating coil assembly is disposed within the housing. A first end of the heating coil assembly is located proximate to a location of the first end wall where a reductant injector tip of the reductant injector is located when the reductant injector is mounted on the first end wall. The heating coil assembly is configured to generate heat sufficient to thermolyze the reductant to generate ammonia and reaction byproducts, in response to an electric current being passed therethrough. A hydrolysis catalyst can be disposed downstream of the heating coil assembly for catalyzing hydrolysis of the reaction byproducts into ammonia.
-
-
-
-
-
-
-
-
-
搜索结果
46 条记录 (耗时 0.027 秒)
