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公开(公告)号：US11473469B2
公开(公告)日：2022-10-18
申请号：US17306638
申请日：2021-05-03
Applicant: Cummins, Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that a plurality of cylinders of an engine are active; compare an exhaust aftertreatment temperature to an exhaust aftertreatment temperature setpoint; and in response to the comparison, adjust an effective flow area for exhaust gas from the plurality of cylinders of the engine to increase an exhaust gas temperature.
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公开(公告)号：US10287945B2
公开(公告)日：2019-05-14
申请号：US15416695
申请日：2017-01-26
Applicant: Cummins, Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: A method for increasing the exhaust temperature of an exhaust system. The method includes receiving an inlet temperature of a selective catalytic reduction system; determining whether the inlet temperature meets a temperature setpoint; adjusting an exhaust manifold pressure setpoint based on the determination of the inlet temperature; determining whether the exhaust manifold pressure of at least one of first or second bank meet the exhaust manifold pressure setpoint; and causing an adjustment of an effective flow area of at least one of the first bank or second bank based on the exhaust manifold pressure, the adjustment of the effective flow area structured to increase exhaust temperature during light load operation.
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公开(公告)号：US20230035148A1
公开(公告)日：2023-02-02
申请号：US17966620
申请日：2022-10-14
Applicant: Cummins, Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: A method includes: determining that at least one cylinder of a first cylinder bank of an engine is active; determining that at least one cylinder of a second cylinder bank of the engine is inactive; receiving an inlet temperature of a selective catalytic reduction system; comparing the inlet temperature to a temperature setpoint; and adjusting at least one of a first exhaust manifold pressure setpoint for the first cylinder bank or a second exhaust manifold pressure setpoint for the second cylinder bank based on the comparison.
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公开(公告)号：US10995642B2
公开(公告)日：2021-05-04
申请号：US16408811
申请日：2019-05-10
Applicant: Cummins Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that an exhaust manifold pressure does not meet an exhaust manifold pressure setpoint and in response, cause an adjustment of an effective flow area of exhaust gas from an engine. The adjustment of the effective flow area is structured to increase an exhaust gas temperature.
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公开(公告)号：US10480377B2
公开(公告)日：2019-11-19
申请号：US15432464
申请日：2017-02-14
Applicant: Cummins Inc.
Inventor： Paul Douglas Free , Jennifer Kay Light-Holets , Vaibhav Daramwar , David A. Brush
Abstract: A system and method are disclosed for improving the performance of an aftertreatment system by elevating its temperature above an activation temperature. According to at least one aspect of the present disclosure, the method includes injecting a quantity of a fuel into certain fueled cylinders of a plurality of combustion cylinders of an internal combustion engine, the plurality of combustion cylinders further including non-fueled cylinders. Exhaust from the fueled cylinders is directed through the aftertreatment system while uncombusted gas from the non-fueled cylinders is directed away from the aftertreatment system. In certain embodiments, the uncombusted gas may be directed into an intake manifold in fluid communication with the plurality of combustion cylinders through an orifice. The system includes an engine having exhaust valves to control flow of the exhaust and uncombusted gas and a controller configured to perform the operations of the method.
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Patent Agency Ranking
6.发明申请SYSTEM, METHOD, AND APPARATUS FOR MANAGING AFTERTREATMENT COMPONENT EFFICIENCY DURING MOTORING 审中-公开用于管理电机运行期间组件效率的系统，方法和装置公开(公告)号：US20160363064A1
公开(公告)日：2016-12-15
申请号：US15249769
申请日：2016-08-29
Applicant: Cummins Inc.
Inventor： Timothy Lee Antcliff , Vijai Raghunathan , Norbert J. Rehm, IV , Vaibhav Daramwar , John C. Stetter , Mostafa M. Kamel
CPC classification number: F02D41/005 , F01N3/101 , F02D41/0005 , F02D41/123 , F02D2041/0017 , Y02T10/22 , Y02T10/42 , Y02T10/47
Abstract: There is disclosed system and methods that maintain efficiency of an aftertreatment component during a motoring event or condition of an internal combustion engine while also lowering oil consumption and particulate number emissions.
Abstract translation: 公开了在内燃机的驾驶事件或状况期间保持后处理部件的效率同时也降低油耗和颗粒数排放的系统和方法。
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公开(公告)号：US20210254530A1
公开(公告)日：2021-08-19
申请号：US17306638
申请日：2021-05-03
Applicant: Cummins, Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that a plurality of cylinders of an engine are active; compare an exhaust aftertreatment temperature to an exhaust aftertreatment temperature setpoint; and in response to the comparison, adjust an effective flow area for exhaust gas from the plurality of cylinders of the engine to increase an exhaust gas temperature.
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公开(公告)号：US20190264594A1
公开(公告)日：2019-08-29
申请号：US16408811
申请日：2019-05-10
Applicant: Cummins Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
Abstract: Systems, methods, and apparatuses are provided for increasing exhaust gas temperature. A system includes a valve and a controller coupled to the valve. The controller is structured to determine that an exhaust manifold pressure does not meet an exhaust manifold pressure setpoint and in response, cause an adjustment of an effective flow area of exhaust gas from an engine. The adjustment of the effective flow area is structured to increase an exhaust gas temperature.
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公开(公告)号：US20180209318A1
公开(公告)日：2018-07-26
申请号：US15416695
申请日：2017-01-26
Applicant: Cummins, Inc.
Inventor： Travis Alva Anderson , Joan M. Wills , Rajkumar Subramanian , Vaibhav Daramwar , Pagalavan Mathari Bakthavatsalam , Paul Daniel Borisuk
CPC classification number: F01N3/2066 , F01N9/00 , F01N2900/1404 , F01N2900/1406 , F02B37/18 , F02D9/04 , F02D41/024 , F02D41/1448 , F02D2700/04 , Y02T10/144 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A method for increasing the exhaust temperature of an exhaust system. The method includes receiving an inlet temperature of a selective catalytic reduction system; determining whether the inlet temperature meets a temperature setpoint; adjusting an exhaust manifold pressure setpoint based on the determination of the inlet temperature; determining whether the exhaust manifold pressure of at least one of first or second bank meet the exhaust manifold pressure setpoint; and causing an adjustment of an effective flow area of at least one of the first bank or second bank based on the exhaust manifold pressure, the adjustment of the effective flow area structured to increase exhaust temperature during light load operation.
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公开(公告)号：US20170152781A1
公开(公告)日：2017-06-01
申请号：US15432464
申请日：2017-02-14
Applicant: Cummins Inc.
Inventor： Paul Douglas Free , Jennifer Kay Light- Holets , Vaibhav Daramwar , David A. Brush
IPC: F01N3/22
CPC classification number: F01N3/225 , F01N9/00 , F01N13/011 , F01N13/107 , F01N13/14 , F01N2410/03 , F01N2430/02 , F01N2430/06 , F01N2900/1602 , F01N2900/1621 , F02D41/0055 , F02D41/0087 , F02D41/0245 , F02D2041/026 , F02D2200/0802 , F02M26/43 , Y02T10/26 , Y02T10/47
Abstract: A system and method are disclosed for improving the performance of an aftertreatment system by elevating its temperature above an activation temperature. According to at least one aspect of the present disclosure, the method includes injecting a quantity of a fuel into certain fueled cylinders of a plurality of combustion cylinders of an internal combustion engine, the plurality of combustion cylinders further including non-fueled cylinders. Exhaust from the fueled cylinders is directed through the aftertreatment system while uncombusted gas from the non-fueled cylinders is directed away from the aftertreatment system. In certain embodiments, the uncombusted gas may be directed into an intake manifold in fluid communication with the plurality of combustion cylinders through an orifice. The system includes an engine having exhaust valves to control flow of the exhaust and uncombusted gas and a controller configured to perform the operations of the method.
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