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    Engine with exhaust gas recirculation system and variable geometry turbocharger
    22.
    发明授权
    Engine with exhaust gas recirculation system and variable geometry turbocharger 有权
    具有排气再循环系统和可变几何涡轮增压器的发动机

    公开(公告)号：US09175644B2

    公开(公告)日：2015-11-03

    申请号：US13869323

    申请日：2013-04-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Edward J. Keating

    IPC: F02B33/44 ,  F02D23/00 ,  F02M25/07 ,  F01N1/12

    CPC classification number: F02M26/19 ,  F02M26/43 ,  Y02T10/121

    Abstract: An engine assembly includes an intake assembly, an internal combustion engine defining a plurality of cylinders and configured to combust a fuel and produce exhaust gas, and an exhaust assembly in fluid communication with a first subset of the plurality of cylinders. Each of the plurality of cylinders are provided in fluid communication with the intake assembly. The exhaust assembly is provided in fluid communication with a first subset of the plurality of cylinders, and a dedicated exhaust gas recirculation system in fluid communication with both a second subset of the plurality of cylinders and with the intake assembly. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the second subset of the plurality of cylinders to the intake assembly. Finally, the engine assembly includes a turbocharger having a variable geometry turbine in fluid communication with the exhaust assembly.

    Abstract translation: 发动机组件包括进气组件，限定多个气缸并被配置为燃烧燃料并产生废气的内燃机，以及与所述多个气缸的第一子系统流体连通的排气组件。 多个气缸中的每一个与进气组件流体连通地设置。 排气组件设置成与多个气缸的第一子系统流体连通，以及与多个气缸的第二子系统和进气组件流体连通的专用废气再循环系统。 专用排气再循环系统被配置为将所有废气从多个气缸的第二子集路由到进气组件。 最后，发动机组件包括具有与排气组件流体连通的可变几何涡轮机的涡轮增压器。

    TURBOCHARGED ENGINE EMPLOYING CYLINDER DEACTIVATION
    23.
    发明申请
    TURBOCHARGED ENGINE EMPLOYING CYLINDER DEACTIVATION 审中-公开
    涡轮发动机使用气缸停止

    公开(公告)号：US20140352300A1

    公开(公告)日：2014-12-04

    申请号：US13905435

    申请日：2013-05-30

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Edward J. Keating

    IPC: F02B37/00

    CPC classification number: F02B37/001 ,  F01D9/026 ,  F02B37/025 ,  F05D2220/40 ,  Y02T10/144

    Abstract: An engine assembly includes an intake assembly, a spark-ignited internal combustion engine, and an exhaust assembly, and a turbocharger. The internal combustion engine is coupled with the intake assembly and defines a plurality of cylinders that are configured to combust a fuel. A subset of the cylinders are configured to selectively deactivate to stop combusting fuel while others continue combustion. The turbocharger includes a dual-inlet compressor in fluid communication with the intake assembly and a dual-scroll turbine in fluid communication with the exhaust assembly. The dual-inlet compressor and dual-scroll turbine are operatively connected through a shaft.

    Abstract translation: 发动机组件包括进气组件，火花点火的内燃机和排气组件以及涡轮增压器。 内燃机与进气组件联接并且限定了构造成燃烧燃料的多个气缸。 气缸的子集被配置为选择性地停用以停止燃烧燃料，而另一些继续燃烧。 涡轮增压器包括与进气组件流体连通的双入口压缩机和与排气组件流体连通的双涡轮涡轮机。 双入口压缩机和双涡轮涡轮机通过轴可操作地连接。

    ENGINE WITH PULSE-SUPPRESSED DEDICATED EXHAUST GAS RECIRCULATION
    24.
    发明申请
    ENGINE WITH PULSE-SUPPRESSED DEDICATED EXHAUST GAS RECIRCULATION 有权
    具有脉冲抑制专用排气回收的发动机

    公开(公告)号：US20140318121A1

    公开(公告)日：2014-10-30

    申请号：US13869313

    申请日：2013-04-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Edward J. Keating ,  Rodney E. Baker

    IPC: F02M25/07

    CPC classification number: F02M26/05 ,  F02B29/0475 ,  F02M26/43 ,  F02M35/10295 ,  Y02T10/121 ,  Y02T10/146

    Abstract: An engine assembly includes an intake assembly, a spark-ignited internal combustion engine, and an exhaust assembly. The intake assembly includes a charge air cooler disposed between an exhaust gas recirculation (EGR) mixer and a backpressure valve. The charge air cooler has both an inlet and an outlet, and the back pressure valve is configured to maintain a minimum pressure difference between the inlet of the charge air cooler and an outlet of the backpressure valve. A dedicated exhaust gas recirculation system is provided in fluid communication with at least one cylinder and with the EGR mixer. The dedicated exhaust gas recirculation system is configured to route all of the exhaust gas from the at least one cylinder to the EGR mixer for recirculation back to the engine.

    Abstract translation: 发动机组件包括进气组件，火花点火内燃机和排气组件。 进气组件包括设置在废气再循环（EGR）混合器和背压阀之间的增压空气冷却器。 增压空气冷却器具有入口和出口，并且背压阀被配置为保持增压空气冷却器的入口和背压阀的出口之间的最小压力差。 提供与至少一个气缸和EGR混合器流体连通的专用废气再循环系统。 专用废气再循环系统被配置为将来自至少一个气缸的所有废气路由到EGR混合器，以再循环回发动机。

    CYLINDER HEAD ASSEMBLY HAVING A HYBRID VALVE SEAT INSERT
    25.
    发明申请
    CYLINDER HEAD ASSEMBLY HAVING A HYBRID VALVE SEAT INSERT 审中-公开

    公开(公告)号：US20200173317A1

    公开(公告)日：2020-06-04

    申请号：US16208615

    申请日：2018-12-04

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Edward J. Keating ,  Brian W. Geiser

    IPC: F01L3/02 ,  F01L3/22 ,  B22F7/06

    Abstract: A cylinder head assembly for an internal combustion engine includes a main body, a valve seat insert, and at least one flow passage extending through the main body. The main body may be formed from a first material and defines a recess configured to cooperate with an associated cylinder bore and piston to form a combustion chamber. The flow passage may extend through the main body from the recess. The valve seat insert may be disposed within the recess proximate to an end of the flow passage. The valve seat insert includes a thermally conductive layer of powdered metal having an upper side disposed adjacent to the main body, a hardness layer of powdered metal, and a machining layer of powdered metal.

    ENGINE WITH DEDICATED EGR EXHAUST PORT AND INDEPENDENTLY DEACTIVATABLE EXHAUST VALVES
    29.
    发明申请
    ENGINE WITH DEDICATED EGR EXHAUST PORT AND INDEPENDENTLY DEACTIVATABLE EXHAUST VALVES 审中-公开
    发动机配有专用排气口和独立脱气阀

    公开(公告)号：US20160305350A1

    公开(公告)日：2016-10-20

    申请号：US15192222

    申请日：2016-06-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Edward J. Keating

    IPC: F02D13/02 ,  F02M26/41

    CPC classification number: F02D13/0276 ,  F02M26/41 ,  Y02T10/18

    Abstract: An engine assembly includes an engine block defining a cylinder, an exhaust system, and an exhaust gas recirculation system. A first exhaust valve is configured to control fluid communication from the cylinder to the exhaust system. A second exhaust valve is configured to control fluid communication from the cylinder to the exhaust gas recirculation system. The second exhaust valve is selectively activatable and deactivatable independently of the first exhaust valve.

    Abstract translation: 发动机组件包括限定气缸的发动机缸体，排气系统和废气再循环系统。 第一排气阀构造成控制从气缸到排气系统的流体连通。 第二排气阀构造成控制从气缸到排气再循环系统的流体连通。 第二排气阀可独立于第一排气阀而选择性地激活和停用。

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