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公开(公告)号：WO2020072152A1
公开(公告)日：2020-04-09
申请号：PCT/US2019/048905
申请日：2019-08-29
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Abstract: A reductant insertion system for an after treatment system configured to decompose constituents of an exhaust gas, includes: a dry reductant tank configured to contain a dry reductant; a reductant delivery line configured to operatively couple the dry reductant tank to the after treatment system for delivery of the dry reductant to the after treatment system; and a pressurized gas source configured to communicate the dry reductant to the after treatment system through the reductant delivery line using pressurized gas.
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12.发明申请
公开(公告)号：WO2020014186A1
公开(公告)日：2020-01-16
申请号：PCT/US2019/040941
申请日：2019-07-09
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： PREVOT, Orlando Dwayne , MUTHUKUMARASAMY, Arulkumaran , LEWIS, Nicholas Ray , LAWAND, Vaibhav J.
Abstract: A system comprises a tank header configured to couple to a reductant tank and a heating mechanism positioned proximate to the tank header. The heating mechanism is configured to heat at least a portion of the tank header. The system may further comprise a conduit configured to pass reductant from the reductant tank and a junction configured to receive reductant from the reductant tank.
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公开(公告)号：WO2020009713A1
公开(公告)日：2020-01-09
申请号：PCT/US2018/046680
申请日：2018-08-14
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： JOHNSON, Samuel , JOHNSON, Ryan M. , JAGTAP, Kartiki , NANDURU, Enoch , MITTAPALLI, Mahendra , SHAH, Udit Bhaveshkumar , KHALATE, Suraj D. , JOSHI, Pradnya Chandrakant , JOSHI, Vinay Kumar , SUNDARAM, Vaidyanadan
Abstract: A decomposition chamber for an aftertreatment system includes a body and a diffuser. The body includes an inlet, an outlet, a thermal management chamber, and a main flow chamber. The inlet is configured to receive exhaust gas. The outlet is configured to expel the exhaust gas. The thermal management chamber is in fluid communication with the inlet. The thermal management chamber is configured to receive an exhaust gas first portion from the inlet. The main flow chamber is in fluid communication with the inlet. The main flow chamber is configured to receive an exhaust gas second portion from the inlet and to receive the exhaust gas first portion from the thermal management chamber. The diffuser is positioned within the main flow chamber. The diffuser includes a diffuser inlet portion and a diffuser flange portion. The diffuser inlet portion includes a plurality of diffuser perforations.
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公开(公告)号：WO2020009694A1
公开(公告)日：2020-01-09
申请号：PCT/US2018/040737
申请日：2018-07-03
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： VOLMERDING, Matthew K. , JOHNSON, Ryan M. , ALONZO, Jim L. , JOHNSON, Samuel , KALYANKAR, Apoorv , NAIK, Pranjal , JAGTAP, Kartiki , MITTAPALLI, Mahendra
Abstract: 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.
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公开(公告)号：WO2019125380A1
公开(公告)日：2019-06-27
申请号：PCT/US2017/067081
申请日：2017-12-18
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： SRINIVASAN, Sriram
Abstract: An aftertreatment system includes: a selective catalytic reduction (SCR) system configured to decompose constituents of exhaust gas; an exhaust conduit configured to deliver the exhaust gas to the SCR system; a hydrocarbon insertion assembly; a valve operably coupled to the exhaust conduit, the valve configured to be selectively opened so as to allow a first gas to enter the exhaust conduit and mix with the exhaust gas; and a controller configured to: determine a SCR system temperature, in response to the SCR system temperature being less than a target temperature, instruct the hydrocarbon insertion assembly to insert hydrocarbons into the exhaust gas, and in response to the SCR system temperature being greater than the target temperature, instruct the valve to open so as to allow the first gas to enter the exhaust conduit, a first gas temperature of the first gas being lower than the SCR system temperature.
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Patent Agency Ranking16.发明申请
公开(公告)号：WO2019118217A1
公开(公告)日：2019-06-20
申请号：PCT/US2018/063602
申请日：2018-12-03
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： SUNDARARAJAN, Vikram , HILL, Joe, V. , TAN, Kern, Lik
Abstract: An assembly for reductant dosing error correction in an exhaust aftertreatment system includes an injector comprising a reductant insertion conduit; a pump configured to advance a quantity of dosed fluid reductant from a reductant source; a reductant source outlet defined by the reductant source and configured to release the quantity of dosed fluid reductant into the reductant insertion conduit; a pressurized reductant receiving chamber defining a pressurized reductant receiver inlet; a reductant insertion pressure sensor; and a doser comprising a controller. The controller of the doser is configured to, based on a first actual pressure of the reductant, calculate a second target flow rate for a second injection event subsequent to a first injection event and control a quantity of dosed fluid reductant released during the second injection event based on the second target flow rate.
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公开(公告)号：WO2019117944A1
公开(公告)日：2019-06-20
申请号：PCT/US2017/066678
申请日：2017-12-15
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： JOHNSON, Samuel , HOLL, Stephen M. , VOLMERDING, Matthew K. , MEYER, Timothy Paul , ALBERS, Andrew J. , MISHRA, Shashank
Abstract: A decomposition reactor tube (DRT) for converting a reductant into ammonia includes an internal structure including a high-thermal conductivity material having a thermal conductivity greater than 20 W/(m∙K), wherein the internal structure is at least one of a splash plate, a splash plate frame, a double wall, an outer wall, a mixer, and/or an exhaust assist port.
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公开(公告)号：WO2019005668A1
公开(公告)日：2019-01-03
申请号：PCT/US2018/039276
申请日：2018-06-25
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： SRINIVASAN, Sriram
Abstract: A process for detecting reductant deposits includes accessing data indicative of signal output from a radiofrequency sensor positioned proximate a decomposition reactor tube; comparing the data indicative of signal output from the radiofrequency sensor to a deposit formation threshold; and activating a deposit mitigation process responsive to the data indicative of signal output from the radiofrequency sensor exceeding the deposit formation threshold.
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公开(公告)号：WO2018136408A1
公开(公告)日：2018-07-26
申请号：PCT/US2018/013843
申请日：2018-01-16
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor： KHALED, Nassim , SRINIVASAN, Sriram
Abstract: A system structured to measure at least one of particulate matter or ammonia in an exhaust aftertreatment system. The system includes a selective catalytic reduction catalyst, a doser disposed upstream of the selective catalytic reduction catalyst, a particulate filter, and a radio frequency sensor communicatively coupled to the diesel particulate filter. The radio frequency sensor is structured to measure at least one of particulate matter or ammonia.
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20.发明申请
公开(公告)号：WO2016182895A1
公开(公告)日：2016-11-17
申请号：PCT/US2016/031169
申请日：2016-05-06
Applicant: CUMMINS EMISSION SOLUTIONS, INC.
Inventor： SONAWANE, Sarang S.
CPC classification number: F01N3/30 , F01N3/2066 , F01N3/208 , F01N2560/06 , F01N2610/02 , F01N2610/08 , F01N2610/085 , F01N2610/1493 , F01N2900/1602 , Y02T10/24
Abstract: Systems for reducing air consumption for aftertreatment systems by selectively supplying air from an air supply may selectively control a valve to enable or disable air supplied to a dosing module. A system may include an air supply, a dosing module, a valve, and a controller. The dosing module may be in selective fluid communication with the air supply. The valve may be configured to selectively supply air from the air supply to the dosing module. The controller may be configured to interpret a parameter indicative of a temperature of a component of an exhaust system and selectively operate the valve responsive to the interpreted parameter indicative of the temperature and a predetermined threshold value.
Abstract translation: 用于通过从空气供应选择性地供应空气来减少后处理系统的空气消耗的系统可以选择性地控制阀以启用或禁用供给到配量模块的空气。 系统可以包括空气源，计量模块，阀和控制器。 配量模块可以与空气供应选择性地流体连通。 阀可以被配置为选择性地将空气从空气供应供给到计量模块。 控制器可以被配置为解释指示排气系统的部件的温度的参数，并且响应于指示温度和预定阈值的解释参数选择性地操作阀。
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