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214 条记录 (耗时 0.017 秒)

    A LARGE ENGINE
    14.
    发明公开
    A LARGE ENGINE 审中-公开

    公开(公告)号：EP4191035A1

    公开(公告)日：2023-06-07

    申请号：EP21212033.1

    申请日：2021-12-02

    申请人： Winterthur Gas & Diesel AG

    发明人： Bellucci, Valter

    IPC分类号： F02B19/10 ,  F02B19/14 ,  F02M23/00

    摘要： A large engine is proposed, with at least one cylinder (1), in which a piston (3) is arranged for a reciprocating movement along a cylinder axis (A) between a top dead center position and a bottom dead center position, wherein the cylinder (1) comprises a cylinder cover (2), wherein the piston (3) comprises a top side (31), wherein the cylinder cover (2) and the top side (31) of the piston (3) delimit a combustion chamber for the combustion of a fuel, and wherein a cavity (6; 7), which opens out into the combustion chamber (4), is provided in the cylinder cover (2). The cavity (6; 7) is configured as a resonance absorber to dampen a resonance frequency of the combustion chamber (4).

    A METHOD FOR OPERATING A LARGE ENGINE AND A LARGE ENGINE
    16.
    发明公开
    A METHOD FOR OPERATING A LARGE ENGINE AND A LARGE ENGINE 审中-公开

    公开(公告)号：EP4144974A1

    公开(公告)日：2023-03-08

    申请号：EP22191019.3

    申请日：2022-08-18

    申请人： Winterthur Gas & Diesel AG

    发明人： Hansen, Lars ,  Naert, Stein

    IPC分类号： F02D13/02 ,  F02D19/10 ,  F02D35/02 ,  F02D41/00 ,  F02B37/18

    摘要： A method for operating a large engine is proposed, which can be operated at least in a gas mode, in which an amount of gas is introduced as fuel into the cylinder, the gas is mixed with scavenging air and ignited at an air-gas-ratio by means of a pilot injection to start the combustion. During operation in the gas mode at least one control parameter, which is characteristic of the combustion quality in the cylinder, is determined, wherein an upper threshold value and/or a lower threshold value are predetermined for the control parameter, and wherein at least one operating parameter is adjusted such that the control parameter is at least as large as the lower threshold value and/or at most as large as the upper threshold value. The at least one operating parameter comprises a pilot injection timing, which determines the start of the combustion, or a combustion speed adjusting for modifying the combustion speed. Furthermore, a large engine is proposed.