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公开(公告)号：US11136932B2
公开(公告)日：2021-10-05
申请号：US15537146
申请日：2015-12-17
Applicant: CUMMINS INC.
Inventor： Axel O. zur Loye , Christopher Pollitt , Timothy P. Lutz
Abstract: Methods and systems of controlling operation of a dual fuel engine are provided, comprising determining a target exhaust temperature, sensing an actual exhaust temperature, determining an exhaust temperature deviation by comparing the actual exhaust temperature to the target exhaust temperature, comparing the exhaust temperature deviation to a threshold, adjusting at least one of an intake throttle, a wastegate, a compressor bypass valve, an exhaust throttle, a VGT and engine valve timing when the exhaust temperature deviation exceeds the threshold to control charge-flow to the engine, and continuing the adjusting until the exhaust temperature deviation is less than the threshold.
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公开(公告)号：US10815913B2
公开(公告)日：2020-10-27
申请号：US15585475
申请日：2017-05-03
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：US10132250B2
公开(公告)日：2018-11-20
申请号：US14732979
申请日：2015-06-08
Applicant: Cummins Inc.
Inventor： Jinghua Zhong , C. Larry Bruner , John F. Wright , Timothy P. Lutz , Phanindra Garimella , Jacob A. Brown
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.
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4.发明申请NOZZLE COMBUSTION SHIELD AND SEALING MEMBER WITH IMPROVED HEAT TRANSFER CAPABILITIES 审中-公开具有改进热传递能力的喷嘴燃烧密封件和密封件公开(公告)号：US20170051713A1
公开(公告)日：2017-02-23
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
CPC classification number: F02M53/046 , F02M53/043 , F02M55/004 , F02M61/14 , F02M2200/858
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.
Abstract translation: 一种喷射器燃烧屏蔽组件，包括构造成接收燃料喷射器的孔，所述孔包括与流体套管流体连通的流体开口和位于所述孔的环形壁内的流体出口; 以及阀，其定位在所述流体套管和所述流体开口之间并且被配置为选择性地允许来自所述流体套管的流体进入所述孔，所述阀可在打开构型之间移动，以允许流体从所述流体套管经由所述流体从所述流体套管流入所述孔 开口和闭合构造以防止流体从流体套管流入孔中。
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5.发明申请SYSTEMS AND METHODS FOR DESULFATION OF AN OXIDATION CATALYST FOR DUAL FUEL ENGINES 审中-公开用于消除双燃料发动机的氧化催化剂的系统和方法公开(公告)号：US20160281619A1
公开(公告)日：2016-09-29
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
CPC classification number: F01N3/0885 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2255/1021 , B01D2255/1023 , F01N3/103 , F01N3/106 , F01N3/2033 , F01N3/2066 , F01N9/00 , F01N13/0093 , F01N2260/04 , F01N2430/06 , F01N2560/023 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2900/1402 , F01N2900/1404 , F02D19/06 , F02D41/0025 , F02D41/024 , F02D41/027 , F02D41/405 , F02D2200/0818 , Y02T10/24 , Y02T10/26 , Y02T10/36 , Y02T10/44 , Y02T10/47
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.
Abstract translation: 公开了一种在多余内燃机的后处理系统中脱硫氧化催化剂的系统和方法。 响应于一个或多个脱硫触发事件，氧化催化剂可以脱硫。 脱硫方法包括将烃从多个燃料源中的一个或全部提供给上游氧化催化剂。 所述烃与上游氧化催化剂内的废气反应，以消耗排气中的氧气，从而降低氧化催化剂的脱硫温度，同时将废气的温度提高到脱硫温度范围。
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Patent Agency Ranking
公开(公告)号：US09410490B2
公开(公告)日：2016-08-09
申请号：US14174319
申请日：2014-02-06
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , Timothy P. Lutz , C. Larry Bruner
CPC classification number: F02D19/0642 , F02D19/061 , F02D19/0623 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D2200/0406 , F02D2200/0611 , F02D2200/1015 , F02M26/05 , F02M26/06 , F02M26/24 , F02M26/25 , Y02T10/32 , Y02T10/36
Abstract: Systems and methods for controlling operation of dual fuel internal combustion engines are disclosed. The control techniques provide for override of a dual fuel mode of operation of the engine by selection of a diesel only fuelling mode in response to one or more operating conditions of the internal combustion engine.
Abstract translation: 公开了用于控制双燃料内燃机运行的系统和方法。 控制技术通过根据内燃机的一个或多个操作条件选择仅柴油加油模式来提供对发动机的双燃料运行模式的超控。
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公开(公告)号：US10227934B2
公开(公告)日：2019-03-12
申请号：US15278330
申请日：2016-09-28
Applicant: Cummins Inc.
Inventor： Robert J. Thomas , Axel Otto Zur Loye , Timothy P. Lutz , Christopher Pollitt , Phanindra V. Garimella
Abstract: Apparatuses, methods and systems for controlling operation of dual fuel engines are disclosed. One embodiment is a method for controlling operation of a dual fuel engine based upon a combustion index value. The combustion index may be empirically determined to provide desired engine operation at a plurality of ratios of gaseous fuel and liquid fuel. The desired engine operation may include a number of criteria including, for examiner an engine knock criterion and/or an exhaust emissions criterion. The combustion index value may be determined during operation of the engine based upon measured, estimated or predicted engine operating parameters. The combustion index value may be utilized to interpolate between a first engine operating map for a first ratio of gaseous fuel and liquid fuel and a second engine operating map for a second ratio of gaseous fuel and liquid fuel.
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公开(公告)号：US10100723B2
公开(公告)日：2018-10-16
申请号：US15713047
申请日：2017-09-22
Applicant: Cummins Inc.
Inventor： J. Steven Kolhouse , Timothy P. Lutz , C. Larry Bruner , Christopher Pollitt
IPC: F02D19/06 , F02D41/00 , F02B47/10 , F02D41/12 , F02D9/04 , F02D17/02 , F02D19/08 , F02B75/22 , F02D41/02 , F02B3/06
Abstract: The present disclosure relates to dual fuel internal combustion engines with multiple cylinder banks and/or cylinder subsets, and exhaust aftertreatment systems associated therewith. Systems and methods are disclosed that relate to engine operations involving fuelling control for fuel cutout of one or more of the cylinder banks and/or cylinder subsets in response to a fuel cutout event to increase gaseous fuel substitution on the other cylinder banks and/or cylinder subsets to satisfy the torque request and thermal management conditions of the aftertreatment system.
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公开(公告)号：US20170122226A1
公开(公告)日：2017-05-04
申请号：US15334632
申请日：2016-10-26
Applicant: CUMMINS INC.
Inventor： Timothy P. Lutz
CPC classification number: B01D53/9495 , B01D53/944 , B01D2251/208 , F01N3/103 , F01N2430/085 , F01N2900/1602 , F02D19/061 , F02D19/0689 , F02D19/0692 , F02D19/081 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D41/402 , F02D2041/389 , Y02T10/36 , Y02T10/44
Abstract: A method includes supplying a first quantity of a first fuel to an engine and supplying a charge including a second fuel and air to the engine. The first fuel is different from the second fuel. The method further includes mixing the first fuel with the charge, supplying a second quantity of the first fuel to the engine, and igniting at least a portion of the first and second fuels in response to supplying the second quantity of the first fuel.
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公开(公告)号：US20150219027A1
公开(公告)日：2015-08-06
申请号：US14174276
申请日：2014-02-06
Applicant: Cummins Inc.
Inventor： Axel Otto zur Loye , Geomy George , Timothy P. Lutz , Steven J. Kolhouse , C. Larry Bruner
IPC: F02D41/00
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 fuelling contributions from a first fuel source and a second fuel source to achieve desired operational outcomes in response to the cylinder pressure based determinations.
Abstract translation: 公开了用于响应于基于气缸压力的确定来控制双燃料内燃机的操作的系统和方法。 这些技术控制来自第一燃料源和第二燃料源的燃料贡献，以响应于基于汽缸压力的确定实现期望的运行结果。
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