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    Mixing device
    1.
    发明授权
    Mixing device 有权

    公开(公告)号：US11466606B2

    公开(公告)日：2022-10-11

    申请号：US17244105

    申请日：2021-04-29

    申请人： Tenneco GmbH

    发明人： Sascha Haverkamp ,  Joachim Gehrlein ,  Stefan Kohrs ,  Eric A. Hein ,  Attila Kovacs

    IPC分类号： F01N3/28 ,  F01N3/10 ,  F01N3/20 ,  B01F23/21 ,  B01F25/31 ,  B01F25/42 ,  B01F25/43 ,  F01N3/02 ,  B01F23/213 ,  B01F25/314 ,  B01F25/421 ,  B01F25/432 ,  F01N3/029

    摘要： A mixer assembly for mixing an injected reductant with an exhaust gas comprises a tubular housing including a reductant inlet, an exhaust gas inlet and an exhaust gas outlet. The reductant inlet is positioned on a first side of the tubular housing and oriented to direct injected reductant along an injection access that extends transversely to a longitudinal axis. A first flow guide element is shaped as a sheet including a first aperture extending therethrough as well as a surface facing upstream. Exhaust gas flowing through the first aperture is impinged by the injected redundant. A second flow guide element is shaped as a sheet, positioned downstream from the first flow guide element and fixed to the first flow guide element to define a mixing chamber between the first flow guide element and the second flow guide element in which the injected redundant and the exhaust gas mix.

    Mixing tube
    2.
    发明授权
    Mixing tube 有权

    公开(公告)号：US11965451B2

    公开(公告)日：2024-04-23

    申请号：US18010657

    申请日：2021-10-20

    申请人： TENNECO GMBH

    发明人： Eric Hein ,  Attila Kovacs ,  Michael Flockert ,  Yannick Leske ,  Rafal Wrobel ,  Klaus Schröer

    IPC分类号： F01N3/28 ,  F01N1/08 ,  F01N1/14 ,  F01N3/00 ,  F01N3/20 ,  F01N3/30 ,  F01N3/36

    CPC分类号： F01N3/2892 ,  F01N3/208 ,  F01N3/30 ,  F01N2240/20 ,  F01N2470/10 ,  F01N2610/14

    摘要： The invention relates to a mixer for an exhaust gas system for mixing an additive into an exhaust gas flow of an internal combustion engine, having a first shell and at least a second shell which are arranged successively in the circumferential direction in relation to a center axis, each shell having at least two shell edges that are arranged offset in the circumferential direction and which each form a flow edge, wherein the flow edges of two circumferentially adjacent shell edges of two different shells delimit an inflow opening, such that at least one pipe end arranged coaxially with the center axis is provided with a circumferential pipe profile that has a nominal radius Rn and is used for connection to an exhaust pipe, the pipe end being formed by the circumferentially adjacent shells.

    Mixing device
    4.
    发明授权
    Mixing device 有权

    公开(公告)号：US10995643B2

    公开(公告)日：2021-05-04

    申请号：US16357874

    申请日：2019-03-19

    申请人： Tenneco GmbH

    发明人： Sascha Haverkamp ,  Joachim Gehrlein ,  Stefan Kohrs ,  Eric A. Hein ,  Attila Kovacs

    IPC分类号： F01N3/28 ,  F01N3/10 ,  F01N3/20 ,  F01N3/02 ,  B01F3/04 ,  B01F5/04 ,  B01F5/06 ,  F01N3/029

    摘要： A mixer assembly comprises a tubular housing including a reductant inlet, an exhaust gas inlet and an exhaust gas outlet. The tubular housing defines a longitudinal axis along which exhaust enters the housing. The reductant inlet is positioned on a first side of the tubular housing. An upstream element covers approximately one-half of the cross sectional area of the enhaust gas inlet and is positioned upstream of the reductant inlet. An upstream surface of the upstream mixing element directs exhaust gas flow transversly toward the reductant inlet. A downstream mixing element along with the upstream mixing element at least partially defines a reductant receiving duct in which injected reductant and exhaust gas mix.