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    METHODS AND SYSTEMS FOR COOLING EXHAUST SYSTEM COMPONENTS
    1.
    发明申请
    METHODS AND SYSTEMS FOR COOLING EXHAUST SYSTEM COMPONENTS 有权
    冷却排气系统组件的方法和系统

    公开(公告)号：US20140230799A1

    公开(公告)日：2014-08-21

    申请号：US14183087

    申请日：2014-02-18

    Applicant: General Electric Company

    Inventor： Chirag Bipinchandra Parikh ,  Jayesh Jain ,  Eric David Peters

    IPC: F02M25/07

    CPC classification number: F02B37/127 ,  F01N3/055 ,  F01N2260/02 ,  F02B37/013 ,  F02B37/18 ,  F02M26/08 ,  Y02T10/121 ,  Y02T10/144 ,  Y02T10/20

    Abstract: Various methods and systems are provided for cooling exhaust system components. In one example, a system comprises heat shield surrounding at least a part of an engine exhaust passage valve positioned in an engine exhaust passage of an engine, and an air jet configured to direct compressed air into the heat shield. The heat shield contains the compressed air around an exterior of the at least the part of the engine exhaust passage valve.

    Abstract translation: 提供了用于冷却排气系统部件的各种方法和系统。 在一个示例中，系统包括围绕位于发动机的发动机排气通道中的发动机排气通道阀的至少一部分的隔热罩和被构造成将压缩空气引导到隔热罩中的空气喷射。 所述隔热罩包含在所述发动机排气通道阀的至少所述部分的外部周围的压缩空气。

    Method and systems for exhaust gas recirculation system diagnosis
    7.
    发明授权
    Method and systems for exhaust gas recirculation system diagnosis 有权
    排气再循环系统诊断方法与系统

    公开(公告)号：US09541040B2

    公开(公告)日：2017-01-10

    申请号：US14478008

    申请日：2014-09-05

    Applicant: General Electric Company

    Inventor： Milan Palinda Karunaratne ,  Benedict George Lander ,  Chirag Bipinchandra Parikh

    IPC: F02M26/49 ,  F02M25/07

    CPC classification number: F02M26/49 ,  F02M26/04 ,  F02M26/10 ,  F02M26/17 ,  F02M26/22 ,  F02M26/38 ,  F02M26/43 ,  F02M26/44 ,  F02M26/47 ,  F02M26/50

    Abstract: Various methods and systems are provided for diagnosing a condition of a component in an exhaust gas recirculation system. In one example, a method includes selectively routing exhaust from a first subset of engine cylinders to an exhaust passage via a first valve and to an intake passage via a second valve and determining a respective condition of each of the first valve and second valve based on a first exhaust pressure of the first subset of engine cylinders and a second exhaust pressure of a second subset of engine cylinders.

    Abstract translation: 提供了用于诊断排气再循环系统中的部件的状态的各种方法和系统。 在一个示例中，一种方法包括：经由第一阀将排气从发动机气缸的第一子集选择性地排列到排气通道，并且经由第二阀选择性地排放到进气通道，并基于以下步骤确定第一阀和第二阀中的每一个的相应状态 发动机气缸的第一子集的第一排气压力和发动机气缸的第二子集的第二排气压力。

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