公开(公告)号：US11598277B2

公开(公告)日：2023-03-07

申请号：US17347885

申请日：2021-06-15

Applicant: Cummins Inc.

Inventor： Marten H. Dane ,  J. Steven Kolhouse ,  Thomas M. Yonushonis ,  J. Stephen Wills ,  Samuel C. Geckler

IPC: F02D41/00 ,  F02B29/04 ,  F02M26/06 ,  F02M26/15 ,  F02M26/28 ,  F02M26/33 ,  F02D41/04 ,  F02D13/02 ,  F02M45/02 ,  F02M26/25 ,  F02M26/27 ,  F02M26/24 ,  F02D9/04 ,  F02D35/02

Abstract: A method includes operating a spark ignition engine and flowing low pressure exhaust gas recirculation (EGR) from an exhaust to an inlet of the spark ignition engine. The method includes interpreting a parameter affecting an operation of the spark ignition engine, and determining a knock index value in response to the parameter. The method further includes reducing a likelihood of engine knock in response to the knock index value exceeding a knock threshold value.

公开(公告)号：US20210231083A1

公开(公告)日：2021-07-29

申请号：US17227574

申请日：2021-04-12

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler ,  Hongfeng H. Wang

IPC: F02M26/09 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02B29/04 ,  F02B37/00

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.

公开(公告)号：US11035326B2

公开(公告)日：2021-06-15

申请号：US15842004

申请日：2017-12-14

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler

IPC: F02M31/20 ,  F02M37/20 ,  F02D19/02 ,  F02M37/00 ,  F02M21/02

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.

公开(公告)号：US11028792B2

公开(公告)日：2021-06-08

申请号：US16241443

申请日：2019-01-07

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 ,  F02D13/02 ,  F02M26/05 ,  F02M26/06 ,  F02M26/13 ,  F02M26/37 ,  F02M26/43 ,  F02B37/18 ,  F02B37/24 ,  F02P5/15 ,  F02D21/08

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.

公开(公告)号：US20200018244A1

公开(公告)日：2020-01-16

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

IPC: F02D13/04 ,  F01L13/06 ,  F02D13/02

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.

公开(公告)号：US20190277205A1

公开(公告)日：2019-09-12

申请号：US16424891

申请日：2019-05-29

Applicant: Cummins Inc.

Inventor： Samuel C. Geckler ,  Vivek Anand Sujan ,  Adam C. Cecil ,  Anthony Kyle Perfetto

IPC: F02D13/02 ,  F01L1/344

Abstract: Systems, apparatuses and methods are disclosed that include an internal combustion engine including a plurality of cylinders operable by a valve actuation mechanism including a lifting mechanism having a compression brake valve profile configured to selectively lift the exhaust valves on a downstroke of the cylinders in response to a cranking condition of the internal combustion engine, wherein the compression braking valve profile is phased to the upstroke of the pistons.

公开(公告)号：US20190136800A1

公开(公告)日：2019-05-09

申请号：US16241671

申请日：2019-01-07

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler ,  Hongfeng H. Wang

IPC: F02M26/09 ,  F02B29/04 ,  F02M26/08 ,  F02M26/23 ,  F02B37/00 ,  F02M26/43

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.

公开(公告)号：US10215134B2

公开(公告)日：2019-02-26

申请号：US15195151

申请日：2016-06-28

Applicant: Cummins Inc.

Inventor： Anthony Kyle Perfetto ,  Samuel C. Geckler ,  Hongfeng H. Wang

IPC: F02B33/44 ,  F02B33/00 ,  F02M26/09 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02B29/04 ,  F02B37/00 ,  F02B75/18

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.

公开(公告)号：US10197018B2

公开(公告)日：2019-02-05

申请号：US14993410

申请日：2016-01-12

Applicant: Cummins Inc.

Inventor： Sudhanshu Talwar ,  Samuel C. Geckler ,  Marten H. Dane

IPC: F02M26/43 ,  F02M26/42 ,  F02M26/05

Abstract: Systems and methods for internal combustion engine operation with exhaust gas recirculation and turbocharging are disclosed. The systems include an exhaust gas recirculation loop for recirculating exhaust gas flow from a first portion of the cylinders of the engine into an intake system prior to combustion. The system further includes a turbine with first and second inlets for receiving exhaust gas flows from respective first and second parts of the exhaust gas of the remaining portion of the cylinders.

公开(公告)号：US10174691B2

公开(公告)日：2019-01-08

申请号：US15138892

申请日：2016-04-26

Applicant: Cummins Inc.

Inventor： Carlos Alcides Lana ,  David J. Stroh ,  Samuel C. Geckler ,  Marten H. Dane ,  Anthony K. Perfetto ,  Karthik Kappaganthu ,  Govindarajan Kothandaraman

IPC: F02B33/44 ,  F02M25/07 ,  F02D41/00 ,  F02B37/18 ,  F02B37/24 ,  F02D13/02 ,  F02P5/15 ,  F02M26/43 ,  F02M26/13 ,  F02M26/37 ,  F02M26/05 ,  F02M26/06 ,  F02D21/08

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.