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公开(公告)号：US20210332777A1
公开(公告)日：2021-10-28
申请号：US17370269
申请日：2021-07-08
Applicant: CUMMINS INC.
Inventor： J. Steven Kolhouse , Daniel J. Mohr , Adrian P. Dale , Samuel C. Geckler , Leon A. LaPointe , David J. Stroh , Anthony Kyle Perfetto , Robin J. Bremmer , Ryan Edward Schultz
Abstract: An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler (“CAC”), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.
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公开(公告)号：US20210108580A1
公开(公告)日：2021-04-15
申请号：US16497594
申请日：2018-03-21
Applicant: CUMMINS INC.
Inventor： J. Steven Kolhouse , Daniel J. Mohr , Adrian P. Dale , Samuel C. Geckler , Leon A. LaPointe , David J. Stroh , Anthony Kyle Perfetto , Robin J. Bremmer , Ryan Edward Schultz
Abstract: An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler (“CAC”), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.
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公开(公告)号：US20190078522A1
公开(公告)日：2019-03-14
申请号：US15701807
申请日：2017-09-12
Applicant: Cummins Inc.
Inventor： Shashank Tamaskar , Anthony Kyle Perfetto , David J. Stroh
IPC: F02D41/00
Abstract: Systems and apparatuses include an engine having a cylinder and a dedicated cylinder, an air intake system providing fresh air to the engine, a fueling system providing fuel to the cylinder and the dedicated cylinder, an exhaust gas recirculation pathway from the dedicated cylinder to the air intake system, and a controller structured to control the fueling system and the air intake system to provide a lean air-to-fuel mixture to the dedicated cylinder during a low-load condition, and to provide a rich air-to-fuel mixture to the dedicated cylinder after a tip-in event.
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公开(公告)号：US11549454B2
公开(公告)日：2023-01-10
申请号：US17315560
申请日：2021-05-10
Applicant: Cummins Inc.
Inventor： Carlos Alcides Lana , David J. Stroh , Samuel C. Geckler , Marten H. Dane , Anthony Kyle Perfetto , Karthik Kappaganthu , Govindarajan Kothandaraman
IPC: F02D41/00 , F02M26/43 , F02D21/08 , F02B37/18 , F02B37/24 , F02D13/02 , F02P5/15 , F02M26/13 , F02M26/37 , F02M26/05 , F02M26/06
Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary EGR cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the amount of recirculated exhaust gas in a charge flow in response to EGR fraction deviation conditions.
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公开(公告)号：US11008952B2
公开(公告)日：2021-05-18
申请号：US16450146
申请日：2019-06-24
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , Anshul Shambhav , Thomas M. Yonushonis , Adrian P. Dale , Samuel C. Geckler , David J. Stroh , Adam C. Cecil , Anthony Kyle Perfetto , Ryan Edward Schultz
Abstract: An internal combustion engine system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system to provide air to the plurality of cylinders through respective ones of a plurality of intake valves, an exhaust system to release exhaust gas from the plurality of cylinders through respective one of a plurality of exhaust valves. The internal combustion engine uses vacuum braking and/or compression release braking in response to one or more braking conditions.
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Patent Agency Ranking
公开(公告)号：US10815919B2
公开(公告)日：2020-10-27
申请号：US16144704
申请日：2018-09-27
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , David J. Stroh
Abstract: A system for controlling combustion misfire in an engine comprising a plurality of cylinders, at least a portion of the plurality of cylinders receiving recirculated exhaust gas, comprises a controller structured to detect a combustion misfire in at least one of the cylinders of the plurality of cylinders. The controller is configured to retard a spark timing of at least the portion of the plurality of cylinders after a time delay.
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公开(公告)号：US20200318564A1
公开(公告)日：2020-10-08
申请号：US16906377
申请日：2020-06-19
Applicant: Cummins Inc.
Inventor： David J. Stroh , Kartavya Neema , Anthony Kyle Perfetto , Shashank Tamaskar
Abstract: One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors structured to inject fuel into the dedicated EGR cylinder and the non-dedicated EGR cylinder, and an electronic control system operatively coupled with the fueling system and the ignition system. The electronic control system is configured to evaluate engine operating parameters including an engine load and an engine speed. The electronic control system is responsive to variation of the engine operating parameters to control operation of the fueling system to vary combustion in the at least one dedicated cylinder between rich of stoichiometric and stoichiometric.
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公开(公告)号：US20200102900A1
公开(公告)日：2020-04-02
申请号：US16144704
申请日：2018-09-27
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , David J. Stroh
Abstract: A system for controlling combustion misfire in an engine comprising a plurality of cylinders, at least a portion of the plurality of cylinders receiving recirculated exhaust gas, comprises a controller structured to detect a combustion misfire in at least one of the cylinders of the plurality of cylinders. The controller is configured to retard a spark timing of at least the portion of the plurality of cylinders after a time delay.
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公开(公告)号：US20200072142A1
公开(公告)日：2020-03-05
申请号：US16675600
申请日：2019-11-06
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , David J. Stroh , Daniel J. O'Connor
Abstract: One embodiment is a system comprising an internal combustion engine having one or more non-dedicated cylinders and one or more dedicated EGR cylinders configured to provide EGR to the engine via an EGR loop, a first spark plug coupled to each of the one or more non-dedicated cylinders, and a second spark plug coupled to each of the one or more dedicated EGR cylinders, wherein the second spark plug has a physical or dimensional characteristic that is different from the first spark plug. In certain forms each of the non-dedicated cylinders has only one of a first type of spark plug and each of the dedicated EGR cylinders has only one of a second type of spark plug. One or more of the characteristics that may vary between the first and second types of spark plugs include spark gap, electrode diameter, heat range, and ion sensing capability.
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公开(公告)号：US10570841B2
公开(公告)日：2020-02-25
申请号：US16047397
申请日：2018-07-27
Applicant: CUMMINS INC.
Inventor： J. Steven Kolhouse , Samuel C. Geckler , David J. Stroh , Ying Yuan
Abstract: A internal combustion engine system includes a gasoline internal combustion engine having a set of donor cylinders and a set of non-donor cylinders. The donor cylinders provide a proportion of the exhaust gas to an exhaust gas recirculation system and the remainder of the exhaust gas to an exhaust gas aftertreatment system including a particulate filter. The non-donor cylinders also provide exhaust gas to exhaust gas aftertreatment system. An engine controller can determine whether the particulate filter needs regeneration, and in response, retard a spark timing of the non-donor cylinders by an amount that is different from an amount or retardation of the donor cylinders.
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