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公开(公告)号：US20160061129A1
公开(公告)日：2016-03-03
申请号：US14473412
申请日：2014-08-29
Applicant: Cummins Inc.
Inventor： Timothy P. Lutz , Axel Otto zur Loye
CPC classification number: F02D41/028 , F01N9/002 , F02D41/0025 , F02D41/0055 , F02D41/027 , F02D41/1441 , F02D41/1446 , F02D41/1475 , Y02T10/36 , Y02T10/47
Abstract: A system and method are disclosed for regenerating an oxidation catalyst used in an aftertreatment system of a multifuel internal combustion engine. According to at least one aspect of the present disclosure, recirculated exhaust gas is employed to enable recovery periods in which the engine generates oxygen-depleted exhaust to desulfate and deoxidize the oxidation catalyst. In certain embodiments, the system may include an exhaust gas recirculation system with a cooler and regulation valve to introduce exhaust gas into the engine.
Abstract translation: 公开了用于再生用于多余内燃机的后处理系统中的氧化催化剂的系统和方法。 根据本公开的至少一个方面，采用再循环排气来实现回收期，其中发动机产生贫氧排放至脱硫酸盐并使氧化催化剂脱氧。 在某些实施例中，系统可以包括具有冷却器和调节阀的废气再循环系统，以将废气引入发动机。
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公开(公告)号：US20150354472A1
公开(公告)日：2015-12-10
申请号：US14732979
申请日：2015-06-08
Applicant: Cummins Inc.
Inventor： Junghua Zhong , C. Larry Bruner , John F. Wright , Timothy P. Lutz , Phanindra Garimella , Jacob A. Brown
CPC classification number: F02D19/0626 , F02D19/0642 , F02D19/0689 , F02D41/0025 , F02D41/0027 , F02D41/1446 , F02D2041/1433 , F02D2200/0414 , F02D2200/0612 , F02M43/04 , G01N25/22 , G01N33/2829 , Y02T10/36
Abstract: The system comprises a fuel description module structured to provide a first signal, and a control circuit operable to receive the first signal. The fuel description module comprises a fuel consumption detection package. The fuel consumption detection package an intake manifold temperature sensor and an exhaust temperature sensor, wherein the first signal corresponds to a difference between the exhaust manifold temperature (EMT) and the intake manifold temperature (IMT). The control circuit is responsive to the first signal to produce a second signal indicating a total energy content (Efuel) of fuel supplied to the dual-fuel engine. The Efuel value indicating the total energy content provided to the engine from a first fuel and a second fuel.
Abstract translation: 该系统包括构造成提供第一信号的燃料描述模块和可操作以接收第一信号的控制电路。 燃料描述模块包括燃料消耗检测包。 燃料消耗检测组件包括进气歧管温度传感器和排气温度传感器，其中第一信号对应于排气歧管温度（EMT）和进气歧管温度（IMT）之间的差。 控制电路响应于第一信号以产生指示供应给双燃料发动机的燃料的总能量含量（Efuel）的第二信号。 Efuel值表示从第一燃料和第二燃料提供给发动机的总能量含量。
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公开(公告)号：US11840971B2
公开(公告)日：2023-12-12
申请号：US17822885
申请日：2022-08-29
Applicant: Cummins Inc.
Inventor： C. Larry Bruner , Phanindra V. Garimella , Geomy George , Timothy P. Lutz , J. Steven Kolhouse , Edmund P. Hodzen , Robert Charles Borregard , Mark A. Rosswurm , Axel Otto zur Loye
CPC classification number: F02D19/081 , F02D19/0628 , F02D19/0647 , F02D19/10 , F02D19/105 , F02D35/027 , F02D41/0025 , F02D41/0027 , F02D41/1498 , F02D41/221 , F02D41/005 , F02D2041/228 , F02D2200/0611 , Y02T10/30 , Y02T10/40
Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.
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公开(公告)号：US20220412276A1
公开(公告)日：2022-12-29
申请号：US17822885
申请日：2022-08-29
Applicant: Cummins Inc.
Inventor： C. Larry Bruner , Phanindra V. Garimella , Geomy George , Timothy P. Lutz , J. Steven Kolhouse , Edmund P. Hodzen , Robert Charles Borregard , Mark A. Rosswurm , Axel Otto zur Loye
Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.
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公开(公告)号：US11448148B2
公开(公告)日：2022-09-20
申请号：US16800281
申请日：2020-02-25
Applicant: Cummins Inc.
Inventor： Axel O. zur Loye , Mark A. Bargent , Andrew G. Kitchen , Robin J. Bremmer , Philipe F. Saad , Milan K. Visaria , Timothy P. Lutz
Abstract: A method and system of power generating is provided to reduce a startup time of a genset for providing requested power to a utility grid or a load. The genset includes a generator, a turbocharger, and an energy storage. The generator includes an engine. The genset responds to a genset start signal by accelerating an engine speed of the generator to reach a synchronous speed. The engine speed is accelerated more rapidly by activating the energy storage device to supply power to at least one of the generator and the turbocharger. The generator then supplies power to the utility grid or load.
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Patent Agency Ranking
公开(公告)号：US10724424B2
公开(公告)日：2020-07-28
申请号：US15573346
申请日：2015-05-15
Applicant: CUMMINS INC.
Inventor： Feng Tao , Timothy P. Lutz
Abstract: Internal combustion engine apparatuses, systems and methods. The internal combustion engine system includes a cylinder block including a cylinder bore and a piston movably positioned in the cylinder bore. The piston is configured to slide in an axial direction within the cylinder bore. The piston includes a piston crown and a turbulence induction protuberance extending in an axial direction from the piston crown. The turbulence induction protuberance is positioned radially intermediate an axial center of the piston and a circumferential portion of the piston. The turbulence induction protuberance is configured to cause turbulence in a propagating flame propagating from a central region of the cylinder bore to cause the propagating flame to extend to a circumferential portion of the cylinder bore.
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公开(公告)号：US10605213B2
公开(公告)日：2020-03-31
申请号：US15241223
申请日：2016-08-19
Applicant: CUMMINS INC.
Inventor： Lester L. Peters , David L. Buchanan , Timothy P. Lutz , David B. Snyder , Derek G. Weiler , Clayton R. Westerfeld , Julie Anne Colin , Akintomide K. Akinola , Joseph Eric Parlow , Steven J. Kolhouse
Abstract: An injector combustion shield assembly comprising a bore configured to receive a fuel injector, the bore including a fluid opening in fluid communication with a fluid jacket and a fluid outlet positioned within an annular wall of the bore; and a valve positioned between the fluid jacket and the fluid opening and configured to selectively permit a fluid from the fluid jacket to enter the bore, the valve being movable between an open configuration to permit fluid flow from the fluid jacket into the bore via the fluid opening and a closed configuration to prevent fluid flow from the fluid jacket into the bore.
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公开(公告)号：US10100689B2
公开(公告)日：2018-10-16
申请号：US15076213
申请日：2016-03-21
Applicant: Cummins Inc.
Inventor： Prachetas A. Kale , Timothy P. Lutz , Junhui Li , Ashok Kumar , Krishna Kamasamudram , C. Larry Bruner
IPC: B01D53/94 , F01N13/00 , F01N3/08 , F01N3/10 , F01N3/20 , F02D41/00 , F02D41/02 , F02D41/40 , F01N9/00 , F02D19/06
Abstract: A system and method are disclosed for desulfating an oxidation catalyst in an aftertreatment system of a multifuel internal combustion engine. The oxidation catalyst can be desulfated in response to one or more desulfation triggering events. The desulfation process includes providing hydrocarbons from one or all of the multiple fuel sources to an upstream oxidation catalyst. The hydrocarbons react with the exhaust gas within the upstream oxidation catalyst to deplete oxygen in the exhaust flow to thereby reduce the desulfation temperature of the oxidation catalyst while elevating a temperature of the exhaust gas to a desulfation temperature range.
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公开(公告)号：US09988991B2
公开(公告)日：2018-06-05
申请号：US15275882
申请日：2016-09-26
Applicant: Cummins Inc.
Inventor： Axel Otto zur Loye , Geomy George , Timothy P. Lutz , J. Steven Kolhouse , C. Larry Bruner
IPC: F02D19/08 , F02D41/00 , F02D35/02 , F02D19/10 , F02D13/02 , F02D19/06 , F02M26/05 , F02M26/06 , F02M26/25 , F02M26/24 , F02D9/02 , F02B3/06 , F02B37/16 , F02B37/18
CPC classification number: F02D19/081 , F02B3/06 , F02B37/16 , F02B37/18 , F02B37/183 , F02D9/02 , F02D13/0215 , F02D19/0626 , F02D19/0647 , F02D19/105 , F02D35/023 , F02D35/027 , F02D41/0002 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D2041/001 , F02M26/05 , F02M26/06 , F02M26/24 , F02M26/25 , Y02T10/18 , Y02T10/36 , Y02T10/42
Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines in response to cylinder pressure based determinations are disclosed. The techniques control fueling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.
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公开(公告)号：US20180135507A1
公开(公告)日：2018-05-17
申请号：US15573346
申请日：2015-05-15
Applicant: CUMMINS INC.
Inventor： Feng Tao , Timothy P. Lutz
CPC classification number: F02B23/08 , F02B23/02 , F02B23/0618 , F02B23/0627 , F02B23/0672 , F02F3/28 , Y02T10/125
Abstract: Internal combustion engine apparatuses, systems and methods. The internal combustion engine system includes a cylinder block including a cylinder bore and a piston movably positioned in the cylinder bore. The piston is configured to slide in an axial direction within the cylinder bore. The piston includes a piston crown and a turbulence induction protuberance extending in an axial direction from the piston crown. The turbulence induction protuberance is positioned radially intermediate an axial center of the piston and a circumferential portion of the piston. The turbulence induction protuberance is configured to cause turbulence in a propagating flame propagating from a central region of the cylinder bore to cause the propagating flame to extend to a circumferential portion of the cylinder bore.
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