Vehicle
    1.
    发明授权
    Vehicle 有权

    公开(公告)号:US11873746B2

    公开(公告)日:2024-01-16

    申请号:US18138369

    申请日:2023-04-24

    发明人: Ryo Nagai

    IPC分类号: F01N3/023 F01N13/00 F01N11/00

    摘要: A vehicle includes a filter, a negative-pressure mechanism, and a first opening and closing mechanism. The filter is disposed in an exhaust passage coupled to an engine. The negative-pressure mechanism is configured to pressurize a portion of the exhaust passage upstream of the filter to a negative pressure less than an atmospheric pressure. The first opening and closing mechanism includes an opening disposed in the exhaust passage, and a valve configured to selectively open and close the opening. The valve is configured to, when the exhaust passage becomes negatively pressurized by the negative-pressure mechanism, open the opening.