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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：US11111872B2
公开(公告)日：2021-09-07
申请号：US16678411
申请日：2019-11-08
Applicant: CUMMINS INC.
Inventor： Anthony Kyle Perfetto , Samuel C. Geckler , David Stroh , Carlos A. Lana
IPC: F02D41/40 , F02D41/00 , F02D41/14 , F02D21/08 , F02M26/43 , F02M26/47 , F02M26/05 , F02M26/04 , F02D41/38
Abstract: A system and method of inducing an operational response change in an operating direct-injection internal combustion engine is provided such that the engine includes a cylinder into which liquid fuel injection is directly performed. The method starts by operating the direct-injection engine using a start of injection (SOI) protocol. At some point during operation, it is determined that a change is desired for a first parameter of engine operation that is at least partially a function of a charge provided to the cylinder (such as the torque output). In response an operational response in the engine is induced by altering the SOI protocol via a first SOI alteration that alters the volumetric efficiency of the cylinder and changes the first parameter.
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公开(公告)号：US20210262423A1
公开(公告)日：2021-08-26
申请号：US17319436
申请日：2021-05-13
Applicant: Cummins Inc.
Inventor： Anthony Kyle Perfetto , Samuel C. Geckler
Abstract: Systems and methods for thermal management of a direct injection propane fuel system are disclosed that include control a temperature of the fuel tank at or below a desired operating temperature to avoid venting of fuel to atmosphere.
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公开(公告)号：US11022050B2
公开(公告)日：2021-06-01
申请号：US16124923
申请日：2018-09-07
Applicant: CUMMINS INC.
Inventor： Ryan E. Schultz , Anthony Kyle Perfetto
Abstract: A system is provided for controlling operation of an engine brake system of an engine in a vehicle. The system includes a controller having an over-speed condition detection unit and an operation mode transition unit. The over-speed condition detection unit is configured to detect an over-speed condition based on a current engine speed and a fuel cut limit speed, the fuel cut limit speed being a predetermined engine speed at which fuel supplied to the engine is suspended. The operation mode transition unit is configured to control the operation of the engine brake system by transitioning the controller between a plurality of brake operation modes based on at least one transition parameter.
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公开(公告)号：US11008981B2
公开(公告)日：2021-05-18
申请号：US16241671
申请日：2019-01-07
Applicant: Cummins Inc.
Inventor： Anthony Kyle Perfetto , Samuel C. Geckler , Hongfeng H. Wang
Abstract: Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one pair of primary EGR cylinders and a plurality of pairs of non-primary EGR cylinders. The pair of primary EGR cylinders can be connected to an intake with an EGR system that lacks an EGR cooler. In another embodiment, the cylinder pairs include exhaust flow paths that join in the cylinder head to form a common exhaust outlet for each cylinder pair in the cylinder head that is connected directly to the EGR system or to the exhaust system without an exhaust manifold.
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Patent Agency Ranking
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：US20200208547A1
公开(公告)日：2020-07-02
申请号：US16815444
申请日：2020-03-11
Applicant: Cummins Inc.
Inventor： Adam C. Cecil , Anshul Shambhav , Anthony Kyle Perfetto
Abstract: A system includes an engine with a plurality of pistons housed in respective ones of a plurality of cylinders, an air intake system provides 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 one of a plurality of exhaust valves, and a controller coupled to a sensor to control a switching tappet for compression release braking. Alternatively to a tappet, the system includes a roller finger follower controlling an opening and closing timing of exhaust valves, the roller finger follower has an inner roller follower arm adjacent an outer sliding follower, and a controller that in response to an engine braking request locks the inner roller follower arm with the outer sliding follower to contact a second cam lobe and open the exhaust valve during a compression stroke of the cylinder.
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公开(公告)号：US10480447B2
公开(公告)日：2019-11-19
申请号：US15321697
申请日：2014-06-26
Applicant: Cummins Inc.
Inventor： Anthony Kyle Perfetto , Samuel C. Geckler , David Stroh , Carlos A. Lana
Abstract: A system and method of inducing an operational response change in an operating direct-injection internal combustion engine is provided such that the engine includes a cylinder into which liquid fuel injection is directly performed. The method starts by operating the direct-injection engine using a start of injection (SOI) protocol. At some point during operation, it is determined that a change is desired for a first parameter of engine operation that is at least partially a function of a charge provided to the cylinder (such as the torque output). In response an operational response in the engine is induced by altering the SOI protocol via a first SOI alteration that alters the volumetric efficiency of the cylinder and changes the first parameter.
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公开(公告)号：US20190338730A1
公开(公告)日：2019-11-07
申请号：US16343068
申请日：2016-10-31
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , Anthony Kyle Perfetto
Abstract: A fueling system is provided, comprising: a pressurized air source; a liquid fuel source; a dual injector coupled to the pressurized air source and the liquid fuel source, the dual injector being mounted to inject pressurized air from the pressurized air source and liquid fuel from the liquid fuel source into a combustion chamber of an engine cylinder; and a controller in communication with the dual injector, the controller being configured to cause the dual injector to inject pressurized air directly into the combustion chamber.
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公开(公告)号：US20190178167A1
公开(公告)日：2019-06-13
申请号：US16124923
申请日：2018-09-07
Applicant: CUMMINS INC.
Inventor： Ryan E. Schultz , Anthony Kyle Perfetto
IPC: F02D13/04
Abstract: A system is provided for controlling operation of an engine brake system of an engine in a vehicle. The system includes a controller having an over-speed condition detection unit and an operation mode transition unit. The over-speed condition detection unit is configured to detect an over-speed condition based on a current engine speed and a fuel cut limit speed, the fuel cut limit speed being a predetermined engine speed at which fuel supplied to the engine is suspended. The operation mode transition unit is configured to control the operation of the engine brake system by transitioning the controller between a plurality of brake operation modes based on at least one transition parameter.
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