公开(公告)号：US11572673B2

公开(公告)日：2023-02-07

申请号：US17358587

申请日：2021-06-25

申请人： Deere & Company

发明人： Danan Dou ,  Eric J. Haaland

IPC分类号： E02F9/20 ,  F02D41/00 ,  F02M26/05 ,  F02B37/00 ,  F02B37/013 ,  F01D15/10 ,  F02D21/04 ,  F02M26/08

摘要： A power system includes an engine; an exhaust gas recirculation (EGR) system supplying a first portion of the engine exhaust gas from the exhaust manifold to the intake manifold; a turbine generator in communication with the exhaust manifold and configured to be driven by a second portion of the engine exhaust gas from the exhaust manifold to generate electrical power; a power network including at least one battery to store the electrical power generated by the turbine generator; and an electric compressor in fluid communication with the intake manifold and configured to be powered by the electrical power from the at least one battery of the power network and to compress at least a portion of the intake air for the engine.

公开(公告)号：US11536226B2

公开(公告)日：2022-12-27

申请号：US17227574

申请日：2021-04-12

申请人： Cummins Inc.

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

IPC分类号： F02M26/43 ,  F02B37/02 ,  F02B75/18 ,  F02M26/09 ,  F02M26/08 ,  F02M26/23 ,  F02B29/04 ,  F02B37/00

摘要： 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：US11536191B2

公开(公告)日：2022-12-27

申请号：US17333769

申请日：2021-05-28

申请人： Caterpillar Inc.

发明人： Christopher Lusardi

IPC分类号： F02B37/00 ,  F02M26/08 ,  H01M8/04111 ,  F02B37/24 ,  F02B37/013 ,  F04D29/22 ,  F01D5/14 ,  H01M8/12

摘要： An engine system includes an internal combustion engine, a fuel cell system, a first turbocharger and a second turbocharger. The internal combustion engine has an intake passage, and a first exhaust passage fluidly connected to the first set of combustion chambers. The first turbocharger has a first compressor and a first turbine. The second turbocharger has a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the fuel cell system, and the second turbine only receives exhaust flow from the internal combustion engine.

公开(公告)号：US11319904B2

公开(公告)日：2022-05-03

申请号：US17074142

申请日：2020-10-19

申请人： Volkswagen Aktiengesellschaft

发明人： Karsten Michels ,  Dirk Hagelstein

IPC分类号： F02B19/10 ,  F02M26/06 ,  F02M26/08 ,  F02B19/00

摘要： An internal combustion engine having at least one cylinder that has a main combustion chamber for burning a fuel/air mixture or a fuel/air/exhaust gas mixture and has a flushed prechamber connected to the main combustion chamber via at least one overflow duct on the fluid side. At least one exhaust gas turbocharger is provided that has a turbine for the expansion of the at exhaust gas leaving the at least one cylinder and a compressor for compressing fresh air or a fresh air/exhaust gas mixture to be supplied to the at least one cylinder as compressed charge-air. In a charge-air line downstream of the compressor, an extraction point is formed from which a flushing line branches off, via which a partial amount of charge-air of the compressed charge-air for flushing the at least one prechamber can be extracted.

公开(公告)号：US20210285364A1

公开(公告)日：2021-09-16

申请号：US17333769

申请日：2021-05-28

申请人： Caterpillar Inc.

发明人： Christopher Lusardi

IPC分类号： F02B37/00 ,  F02M26/08 ,  H01M8/04111 ,  F02B37/24 ,  F02B37/013 ,  F04D29/22 ,  F01D5/14

摘要： An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.

公开(公告)号：US11047322B2

公开(公告)日：2021-06-29

申请号：US15939005

申请日：2018-03-28

申请人： Ford Global Technologies, LLC

发明人： Joseph Ulrey ,  John Erik Mikael Hellstrom ,  Daniel Madison ,  Christopher John Piper ,  Andres Ceballos

IPC分类号： F02D41/00 ,  F02D41/08 ,  F02D13/02 ,  F02B37/18 ,  F02D35/02 ,  F01N13/10 ,  F02M26/08 ,  F02M26/00

摘要： Methods and systems are provided for reducing exhaust residuals during light load conditions in a split exhaust engine via a check valve. In one example, a scavenge exhaust manifold may be maintained above a threshold pressure by introducing fresh air into the scavenge manifold during a valve overlap period, the scavenge manifold coupled to a cylinder of an engine and coupled to an intake passage of the engine.

公开(公告)号：US11022055B2

公开(公告)日：2021-06-01

申请号：US15738640

申请日：2016-06-20

申请人： VOLVO TRUCK CORPORATION

发明人： Ulf Aronsson ,  Martin Bauer ,  Mohammed Adlouni

IPC分类号： F02M26/05 ,  F02M26/08 ,  F02M26/09 ,  F02B37/18 ,  F02B37/013 ,  F02B37/02 ,  F02B37/00 ,  F02M26/42 ,  F02M26/38 ,  F02D41/00 ,  F02B41/10 ,  F02M26/16 ,  F01N3/021 ,  F01N3/20

摘要： An internal combustion engine system includes an internal combustion engine, a first turbine unit receiving exhaust gases from the internal combustion engine, the turbine unit having a compressor for compressing intake air and feeding the intake air by an air intake line to the internal combustion engine, and an exhaust gas recirculation line connecting the air intake line with an exhaust as line of the internal combustion engine at a position upstream the first turbine unit. A bypass line connects the exhaust gas recirculation line to the exhaust gas line at a position downstream of the turbine unit, the bypass line having an arrangement for controlling the exhaust gas flow from the exhaust gas recirculation line to the exhaust gas line.

公开(公告)号：US11008981B2

公开(公告)日：2021-05-18

申请号：US16241671

申请日：2019-01-07

申请人： Cummins Inc.

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

IPC分类号： F02M26/09 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02B37/00 ,  F02B29/04 ,  F02B75/18

摘要： 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：US10947932B2

公开(公告)日：2021-03-16

申请号：US16450818

申请日：2019-06-24

申请人： Ford Global Technologies, LLC

发明人： Mohannad Hakeem ,  Timothy Joseph Clark ,  Gopichandra Surnilla ,  Daniel Paul Madison

IPC分类号： F02M26/14 ,  F02M26/08 ,  F02M26/42 ,  F01N13/10 ,  F02D13/02

摘要： Methods and systems are provided for adjusting operation of a split exhaust engine system based on a total flow of gases through a scavenge exhaust gas recirculation system of the split exhaust engine system. In one example, a method may include setting a cam timing correction based on a difference between a first value and a second value of a flow through an exhaust gas recirculation (EGR) passage, the first value determined based on a first parameter set including a cylinder valve overlap area and the second value determined based on a second parameter set not including the cylinder valve overlap area, and operating at least one of an intake cam and an exhaust cam at a corrected timing using the cam timing correction. In this way, the flow through the EGR passage may be adjusted even without active control of a valve coupled in the EGR passage.

公开(公告)号：US20210071624A1

公开(公告)日：2021-03-11

申请号：US17101186

申请日：2020-11-23

申请人： Hyundai Motor Company ,  Kia Motors Corporation

发明人： Dong Hee HAN ,  Jong Il PARK ,  Hyun Jun LIM ,  Seungwoo HONG ,  Joowon LEE ,  Kwanhee CHOI ,  Heechang OH ,  Yeongseop PARK ,  Dong HO CHU ,  Hyungbok LEE

IPC分类号： F02M26/42 ,  F01N3/10 ,  F02M26/08 ,  F01N13/10 ,  F02B37/04 ,  F02M35/10 ,  F02M35/108 ,  F02M35/112

摘要： An engine system may include: an engine including cylinders that generate a driving torque by combusting fuel; a first intake manifold connected to an intake line through which flows intake air into some of the plurality of cylinders; a second intake manifold supplying the intake air to the other cylinders of the plurality of cylinders through the first intake manifold; a first exhaust manifold connected to some cylinders that are connected to the first intake manifold; a second exhaust manifold connected to some other cylinders that are connected to the second intake manifold; a recirculation line branched from the second exhaust manifold to be coupled to the second intake manifold; a recirculation inlet valve disposed at a point at which the recirculation line and the second exhaust manifold are joined; and a manifold connection valve disposed on an intake line between the first intake manifold and the second intake manifold.