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    Exhaust discharge system
    1.
    发明授权
    Exhaust discharge system 有权

    公开(公告)号：US12123332B2

    公开(公告)日：2024-10-22

    申请号：US18207321

    申请日：2023-06-08

    Applicant: Caterpillar Inc.

    Inventor： Saad Hasan ,  Gerald W. Gavin ,  Daniel Allen Hatfield ,  Jingshu Wu

    IPC: F01N13/08 ,  B60K13/04 ,  E02F9/08 ,  F23J11/04 ,  F23J11/06

    CPC classification number: F01N13/082 ,  E02F9/0866 ,  F01N2340/04 ,  F01N2470/10 ,  F01N2470/24 ,  F01N2590/08

    Abstract: An exhaust discharge system is disclosed. The exhaust discharge system comprises an exhaust stack including a first conduit and a second conduit. The first conduit defines a first flow passageway and arranged around a first longitudinal axis. The first conduit including a skirt portion and a body portion disposed downstream of the skirt portion, and the skirt portion is oriented to slope outward from the body portion. The second conduit is disposed downstream of the first conduit. The second conduit defines a second flow passageway and is arranged around a second longitudinal axis, the second conduit includes a sidewall and an exit port, the exit port having an exit-port cross-section, wherein the exit-port cross-section is oblong in shape. The second longitudinal axis is disposed at an intersection angle to the first longitudinal axis, the intersection angle in a range of 125° to 150°. The exhaust stack is configured to convey treated exhaust from the skirt portion to the exit port.

    Exhaust sound attenuation device
    2.
    发明授权
    Exhaust sound attenuation device 有权

    公开(公告)号：US11434794B2

    公开(公告)日：2022-09-06

    申请号：US16433830

    申请日：2019-06-06

    Applicant: Caterpillar Inc.

    Inventor： Andrew Greif ,  Subhro Nathak ,  Saad Hasan ,  Peter Xiao ,  Joseph Bobchik

    IPC: F01N1/02 ,  F01N1/06 ,  F01N13/14 ,  G10K11/172 ,  G10K11/162

    Abstract: An exhaust muffler for an internal combustion engine includes a housing. A plurality of partitions are disposed within the housing, defining a plurality of chambers. An inlet pipe and an outlet pipe are also disposed within the housing and both the inlet and outlet pipes include a perforated region. The perforated region permits fluid communication between the inlet pipe, outlet pipe and the plurality of chambers. To attenuate engine noise, the perforated regions of the inlet and outlet pipes are positioned at opposite ends of the housing, forcing the exhaust gas to pass through each of the plurality of partitions and chambers, thereby damping the sound waves with minimum effect on engine back pressure levels. Alternatively, the perforated regions of the inlet and outlet pipes may be aligned in a cross-flow chamber.

    Engine Exhaust Aftertreatment Component Including Aftertreatment Brick Module
    5.
    发明申请
    Engine Exhaust Aftertreatment Component Including Aftertreatment Brick Module 有权
    发动机排气后处理组件包括后处理砖模块

    公开(公告)号：US20140154159A1

    公开(公告)日：2014-06-05

    申请号：US13692135

    申请日：2012-12-03

    Applicant: CATERPILLAR, INC.

    Inventor： Pradyumna Venkata Rao ,  Saad Hasan ,  Ian Aguirre ,  Varun Malik

    IPC: F01N3/28

    CPC classification number: F01N3/2066 ,  F01N3/2875 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2450/30 ,  F01N2590/02 ,  Y02T10/24

    Abstract: An engine exhaust aftertreatment component includes a housing defining an exhaust flow path from an exhaust inlet to an exhaust outlet. The housing supports an internal support channel. An aftertreatment brick module includes a catalytic brick, a can configured to receive the catalytic brick, and an end plate disposed along an end of the can. The end plate includes a coupling mechanism configured to be received within the internal support channel.

    Abstract translation: 发动机排气后处理部件包括限定从排气入口到排气出口的排气流动路径的壳体。 外壳支撑内部支撑通道。 后处理砖模块包括催化砖，被配置为容纳催化砖的罐和沿罐的端部设置的端板。 端板包括被配置为容纳在内部支撑通道内的联接机构。

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