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    SYSTEMS AND METHODS FOR EQUALIZING BACKPRESSURE IN ENGINE CYLINDERS
    1.
    发明申请
    SYSTEMS AND METHODS FOR EQUALIZING BACKPRESSURE IN ENGINE CYLINDERS 审中-公开

    公开(公告)号：US20200300150A1

    公开(公告)日：2020-09-24

    申请号：US16889058

    申请日：2020-06-01

    Applicant: CUMMINS INC.

    Inventor： Daniel J. Mohr ,  Bogdan V. Pavlov ,  Nikhil J. Ajotikar ,  Yi-cheng Chen ,  David Eckroth

    IPC: F01N13/10 ,  F02B37/02 ,  F02M26/05 ,  F02M26/14 ,  F01N1/06 ,  F02M26/42

    Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define n angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

    Systems and methods for equalizing backpressure in engine cylinders
    3.
    发明授权
    Systems and methods for equalizing backpressure in engine cylinders 有权

    公开(公告)号：US11319860B2

    公开(公告)日：2022-05-03

    申请号：US16889058

    申请日：2020-06-01

    Applicant: CUMMINS INC.

    Inventor： Daniel J. Mohr ,  Bogdan V. Pavlov ,  Nikhil J. Ajotikar ,  Yi-cheng Chen ,  David Eckroth

    IPC: F01N13/10 ,  F02B37/02 ,  F02M26/05 ,  F02M26/14 ,  F01N1/06 ,  F02M26/42

    Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define n angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

    Cylinder head for internal combustion engine
    5.
    发明授权
    Cylinder head for internal combustion engine 有权

    公开(公告)号：US12215650B2

    公开(公告)日：2025-02-04

    申请号：US17596931

    申请日：2021-05-17

    Applicant: Cummins Inc.

    Inventor： Robert Earl Hoye ,  Jeffrey D. Jones ,  Daniel J. Mohr ,  David M. Barnes ,  Timothy Shipp

    IPC: F02F1/38 ,  F02F1/40

    Abstract: A cylinder head includes novel designs for undercuts, contours of the outer enclosure, coolant jackets, and other cavities within an outer enclosure of the cylinder head. The cylinder head design enables the reduction of weight of the head while maintaining structural integrity of the head, and improves control of temperatures in intake side and exhaust side zones of the heads to improve operational efficiency of the engine. A method is provided for additive manufacturing of the cylinder head including the disclosed designs.

    Systems and methods for equalizing backpressure in engine cylinders
    6.
    发明授权
    Systems and methods for equalizing backpressure in engine cylinders 有权

    公开(公告)号：US10704449B2

    公开(公告)日：2020-07-07

    申请号：US16073117

    申请日：2017-02-01

    Applicant: CUMMINS INC.

    Inventor： Daniel J. Mohr ,  Bogdan V. Pavlov ,  Nikhil J. Ajotikar ,  Yi-cheng Chen ,  David Eckroth

    IPC: F01N1/06 ,  F01N13/10 ,  F02B37/02 ,  F02M26/05 ,  F02M26/14 ,  F02M26/42

    Abstract: An exhaust manifold comprises a plurality of exhaust intake conduits structured to be fluidly coupled to an engine and receive exhaust gas from a corresponding cylinder of the engine. At least one exhaust intake conduit provides a reduction in an exhaust intake conduit cross-sectional area from an inlet to an outlet. A plurality of bends are each defined by a respective one of the exhaust intake conduit outlets. An exhaust intake manifold is fluidly coupled to the exhaust intake manifold and defines an exhaust intake manifold flow axis. Each of the plurality of bends is shaped so as to define an angle of approach of exhaust gas flowing therethrough. A first angle of approach of the first bend relative to the exhaust intake manifold flow axis is smaller than a second angle of approach of an inner second bend.

    System and method for managing condensation in EGR systems
    7.
    发明授权
    System and method for managing condensation in EGR systems 有权

    公开(公告)号：US10138800B2

    公开(公告)日：2018-11-27

    申请号：US14678323

    申请日：2015-04-03

    Applicant: Cummins, Inc.

    Inventor： Leon A. LaPointe ,  Daniel J. Mohr ,  Edward J. Lyford-Pike ,  Ashish Gupta

    IPC: F02B33/44 ,  F02B29/04 ,  F02M21/02 ,  F02M26/06 ,  F02M26/28 ,  F02M26/33 ,  F02D21/08

    Abstract: A system and method for condensation management in a low-pressure loop EGR system are provided. The system includes an EGR condensation temperature module configured to determine an EGR condensation temperature of recirculated exhaust gas upstream of an EGR cooler and an EGR coolant temperature controller communicably coupled to the EGR condensation temperature module. The EGR coolant temperature controller provides EGR coolant to the EGR cooler at or above the EGR condensation temperature. The system also includes a charge air condensation temperature module configured to determine a charge air condensation temperature of charge air upstream of a charge air cooler and a charge air coolant temperature controller communicably coupled to the charge air condensation temperature module. The charge air coolant temperature controller provides charge air coolant to the charge air cooler at or above the charge air condensation temperature.

    SYSTEM AND METHOD FOR MANAGING CONDENSATION IN EGR SYSTEMS
    9.
    发明申请
    SYSTEM AND METHOD FOR MANAGING CONDENSATION IN EGR SYSTEMS 有权
    用于管理EGR系统中的冷凝的系统和方法

    公开(公告)号：US20160319779A1

    公开(公告)日：2016-11-03

    申请号：US14700353

    申请日：2015-04-30

    Applicant: Cummins, Inc.

    Inventor： Leon A. LaPointe ,  Daniel J. Mohr ,  Edward J. Lyford-Pike ,  Ashish Gupta

    IPC: F02M26/33 ,  F02D41/26 ,  F01N3/10 ,  F02M26/23 ,  F01N3/021 ,  F02D41/00 ,  F02M26/47

    CPC classification number: F02M26/33 ,  F01N3/021 ,  F01N3/101 ,  F02B29/0443 ,  F02B29/0493 ,  F02D19/02 ,  F02D41/0065 ,  F02M21/04 ,  F02M26/06 ,  F02M26/15 ,  F02M26/28 ,  F02M26/35 ,  F02M26/47 ,  Y02T10/146 ,  Y02T10/22

    Abstract: A system and method for condensation management in a low-pressure loop EGR system are provided. The system includes an EGR condensation temperature module configured to determine an EGR condensation temperature of recirculated exhaust gas upstream of an EGR cooler and an EGR coolant temperature controller communicably coupled to the EGR condensation temperature module. The EGR coolant temperature controller provides EGR coolant to the EGR cooler at or above the EGR condensation temperature. The system also includes a charge air condensation temperature module configured to determine a charge air condensation temperature of charge air upstream of a charge air cooler and a charge air coolant temperature controller communicably coupled to the charge air condensation temperature module. The charge air coolant temperature controller provides charge air coolant to the charge air cooler at or above the charge air condensation temperature.

    Abstract translation: 提供了一种用于低压环路EGR系统中冷凝管理的系统和方法。 该系统包括EGR冷凝温度模块，其被配置为确定在EGR冷却器上游的再循环废气的EGR冷凝温度和可通信地联接到EGR冷凝温度模块的EGR冷却剂温度控制器。 EGR冷却剂温度控制器在等于或高于EGR冷凝温度的EGR冷却器提供EGR冷却剂。 该系统还包括增压空气冷凝温度模块，其被配置为确定增压空气冷却器上游的增压空气的增压空气冷凝温度和可通信地连接到增压空气冷凝温度模块的增压空气冷却剂温度控制器。 增压空气冷却剂温度控制器在增压空气冷凝温度以上时向增压空气冷却器提供增压空气冷却剂。

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