ENGINE
    6.
    发明公开
    ENGINE 审中-公开

    公开(公告)号:EP4386186A1

    公开(公告)日:2024-06-19

    申请号:EP24173312.0

    申请日:2020-03-05

    Abstract: An engine (100) is provided with an engine body (1), an exhaust manifold (42), a turbocharger (24), an exhaust gas purification device (43), and a connection pipe (52) that connects the turbocharger (24) and the exhaust gas purification device (43). The connection pipe (52) is configured to guide exhaust gas from the exhaust manifold (42) that has passed through a turbine of the turbocharger (24) to the exhaust gas purification device (43), the connection pipe (52) has an upstream portion (52a) with a curved shape where one end is connected to a straight portion (52b) of the connection pipe (52) and the other end is connected to the turbocharger (24).

    INTERNAL-COMBUSTION-ENGINE FILTER REGENERATION SYSTEM AND INTERNAL-COMBUSTION-ENGINE FILTER REGENERATION METHOD

    公开(公告)号:EP3467277A1

    公开(公告)日:2019-04-10

    申请号:EP17806737.7

    申请日:2017-05-31

    Inventor: OHSUMI Kazuo

    Abstract: A filter regeneration system 100 for an internal combustion engine, the filter regeneration system including: a calculation unit 51 configured to calculate a minimum oxygen concentration and a minimum nitrogen dioxide concentration at which a passive regeneration reaction, in which carbon in PM accumulated on a filter arranged in an exhaust gas passage 20 of the internal combustion engine 10 reacts with nitrogen dioxide and oxygen to generate carbon dioxide and nitrogen monoxide, occurs based on an amount of the PM accumulated on the filter 32; and an exhaust gas temperature control unit 51 configured to, in a case where an oxygen concentration and a nitrogen dioxide concentration in exhaust gas on an upstream of the filter are equal to or higher than the minimum oxygen concentration and the minimum nitrogen dioxide concentration, respectively, control a temperature of exhaust gas flowing into the filter within a temperature range in which the passive regeneration reaction occurs preferentially.

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