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    EXHAUST GAS TURBOCHARGER ARRANGEMENT AND INTERNAL COMBUSTION ENGINE
    1.
    发明公开
    EXHAUST GAS TURBOCHARGER ARRANGEMENT AND INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：US20240218825A1

    公开(公告)日：2024-07-04

    申请号：US18606324

    申请日：2024-03-15

    申请人： Rolls-Royce Solutions GmbH

    发明人： Stefan Ill

    IPC分类号： F02B37/18 ,  F02M26/07

    CPC分类号： F02B37/183 ,  F02M26/07 ,  F05D2220/40

    摘要： An exhaust-gas turbocharger arrangement, including: three exhaust-gas turbochargers, for being arranged above an engine top side, being a high-pressure exhaust-gas turbocharger, a first low-pressure exhaust-gas turbocharger, and a second low-pressure exhaust-gas turbocharger; a high-pressure stage, with the high-pressure exhaust-gas turbocharger; a low-pressure stage, with the first and second low-pressure exhaust-gas turbochargers; and an exhaust-gas conduit, which includes a high-pressure conduit, a low-pressure conduit, and a high-pressure stage bypass, the low-pressure conduit including a bifurcated pipe between the high-pressure exhaust-gas turbocharger and the first low-pressure exhaust-gas turbocharger and the second low-pressure exhaust-gas turbocharger, the high-pressure conduit including an engine exhaust-gas conduit and a high-pressure stage bypass line, the high-pressure stage bypass line being connected at a first end to the engine exhaust-gas conduit and at a second end to the bifurcated pipe, the high-pressure stage bypass line including a bypass control element in a part running below the bifurcated pipe.

    A START-UP METHOD FOR A VEHICLE WITH A HYBRID PROPULSION SYSTEM
    5.
    发明申请
    A START-UP METHOD FOR A VEHICLE WITH A HYBRID PROPULSION SYSTEM 审中-公开

    公开(公告)号：US20200332730A1

    公开(公告)日：2020-10-22

    申请号：US16956729

    申请日：2017-12-29

    申请人： VOLVO TRUCK CORPORATION

    发明人： Lennart ANDERSSON

    IPC分类号： F02D41/02 ,  F02D41/06 ,  F01N3/20 ,  F01N3/08 ,  F02M26/22 ,  F02D33/00 ,  F01N3/10 ,  F02M26/05 ,  B60K6/26 ,  B60K6/24 ,  F01N3/28 ,  F02D41/00 ,  F01N3/035 ,  F02M26/06 ,  F02M26/07 ,  B01D53/94 ,  B01J29/04 ,  B01J23/22

    摘要： Start-up method for heating a selective catalytic reduction (SCR) module in a hybrid propulsion system of a vehicle, comprising an electric motor operatively connected to an internal combustion engine producing exhaust gas, both electric motor and internal combustion engine being operable to power said vehicle, and said internal combustion engine being in fluid communication with an exhaust aftertreatment system having an exhaust passage and comprising the SCR module, said SCR module being disposed in said exhaust passage downstream of said engine and said electric motor, the method comprising the steps of: operating the engine in a start-up mode with a torque restriction on the engine, allowing the SCR module to convert NOx emission; supplying a surplus amount of a reducing agent to the exhaust gas at a position between the engine and the SCR module, the surplus amount of the reducing agent being larger than a required amount of reducing agent for converting NOx emission from the engine; heating said SCR module to a working temperature; and terminating the start-up mode, thereby terminating the torque restriction on the engine and the supply of the surplus amount of the reducing agent.