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    EATS for converting NOx emissions in exhaust gases from an engine
    1.
    发明授权
    EATS for converting NOx emissions in exhaust gases from an engine 有权

    公开(公告)号：US11933212B2

    公开(公告)日：2024-03-19

    申请号：US17935685

    申请日：2022-09-27

    申请人： VOLVO TRUCK CORPORATION

    发明人： Irman Svraka ,  Dan Stenqvist ,  Martin Wilhelmsson

    IPC分类号： F01N3/20 ,  B01D53/94

    CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2255/911 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1453

    摘要： An exhaust aftertreatment system, EATS, for converting NOx emissions in exhaust gases from an engine. The EATS includes a fluid channel for providing a fluid pathway for the exhaust gases; a selective catalytic reduction, SCR, catalyst arranged in the fluid channel, the SCR catalyst being configured to store ammonia; an injector configured to inject a reductant for providing ammonia to the SCR catalyst, the injector being arranged upstream of the SCR catalyst; a fluid flow inducer configured to cause an induced fluid flow in at least a part of the fluid channel when the engine is turned off; and a controlling apparatus configured to precondition the EATS prior to engine start by injecting the reductant into the fluid channel, and transport the reductant into the SCR catalyst by the induced fluid flow to store ammonia in the SCR catalyst.

    DEVICE AND METHOD IN CONNECTION WITH A PRE-HEATING PROCESS OF AN AFTERTREATMENT SYSTEM
    5.
    发明公开
    DEVICE AND METHOD IN CONNECTION WITH A PRE-HEATING PROCESS OF AN AFTERTREATMENT SYSTEM 审中-公开

    公开(公告)号：US20230235711A1

    公开(公告)日：2023-07-27

    申请号：US18098907

    申请日：2023-01-19

    申请人： Volvo Truck Corporation

    发明人： Martin Wilhelmsson ,  Dan Stenqvist ,  Irman Svraka

    IPC分类号： F02D41/02 ,  F02D41/06

    CPC分类号： F02D41/024 ,  F02D41/062 ,  F02D2200/0802 ,  F02D2250/36

    摘要： A method performed by a control unit in connection with a pre-heating process of an aftertreatment system for a combustion engine is provided. The control unit obtains a scheduled start time of the combustion engine. The control unit schedules a pre-heating of the aftertreatment system to be completed before the scheduled start time. The control unit detects a start of the combustion engine at an actual start time. In response to the detected start of the combustion engine, and using the actual and scheduled start times, the control unit determines whether the scheduled pre-heating of the aftertreatment system fulfils one or more success criteria. When the one or more success criteria are fulfilled, the control unit triggers a performance increase of the combustion engine.