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

IPC: F02D41/14 ,  F02D41/00 ,  F02B37/18 ,  F02D9/04 ,  F02D41/40 ,  F02D23/00 ,  F02D19/06 ,  F02D41/24

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.

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

IPC: F02D19/08 ,  F02D41/22 ,  F02D19/06 ,  F02D35/02 ,  F02D19/10 ,  F02D41/00 ,  F02D41/14

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.

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

IPC: F02D19/00 ,  F02D19/06 ,  F02D41/00 ,  G01N25/22 ,  F02M43/04 ,  G01N33/28 ,  F02D41/14

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.

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

IPC: F02M53/04 ,  F01P3/16 ,  F01P7/14 ,  F02M55/00

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。

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

IPC: F02D41/02 ,  F01N3/20 ,  F02D41/00 ,  F01N13/00 ,  F01N3/08 ,  B01D53/94 ,  F01N3/10

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。

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

IPC: F01N3/00 ,  F02D19/06 ,  F02D41/04

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。

公开(公告)号：US20250146444A1

公开(公告)日：2025-05-08

申请号：US19013698

申请日：2025-01-08

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

IPC: F02D19/08 ,  F02D19/06 ,  F02D19/10 ,  F02D35/02 ,  F02D41/00 ,  F02D41/14 ,  F02D41/22

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.

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

IPC: F02D19/08 ,  F02D19/06 ,  F02D41/24 ,  F02D35/02 ,  F02D41/00 ,  F02D41/40 ,  F02D41/14

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.

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.

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

IPC: F02D19/08 ,  F02D41/38 ,  B01D53/94 ,  F01N3/20 ,  F02D41/00 ,  F02D19/06 ,  F01N3/10

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.