Apparatus and method for diagnosing blow-by gas recirculation system

    公开(公告)号:US12110833B1

    公开(公告)日:2024-10-08

    申请号:US18376972

    申请日:2023-10-05

    发明人: Bon Chang Koo

    IPC分类号: F02D41/22 F01M13/00 F02D41/18

    摘要: An apparatus for diagnosing a blow-by gas recirculation system may include a head portion of an engine configured to form a combustion chamber, a head cover provided on an upper portion of the head portion, a crankcase formed on a lower portion of the combustion chamber, an intake line through which an intake-air flows to the combustion chamber, a breather hose connecting the crankcase and the intake line at an upstream side of a compressor mounted on the intake line, a PCV hose connecting the crankcase and a surge tank, and a controller configured to determine an abnormality of the breather hose based on a modelled crankcase pressure determined from an atmospheric pressure and an intake flow rate introduced through a throttle valve and a measured crankcase pressure measured from a pressure sensor configured to measure an internal pressure of the crankcase.

    Filter element and a filter assembly

    公开(公告)号:US11731068B2

    公开(公告)日:2023-08-22

    申请号:US17341483

    申请日:2021-06-08

    摘要: A filter assembly 7 for separating contaminants from a fluid stream is described. The filter assembly 7 comprises a filter element 58 which is locatable within chamber 19 in a flow path extending between inlet 54 and outlet 56. The filter element 58 comprises a filter media component 60, and the filter element is locatable within the chamber 19 in the flow path so that fluid flowing from the inlet 54 to the outlet 56 is directed through the filter media component. The filter assembly 7 comprises at least one first alignment assembly having a first alignment component 64a provided by the housing portion 21c and disposed within chamber 19, and a second alignment component 66a provided by the filter element 58. The first and second alignment components 64a and 66a cooperate to rotationally orient the filter element 58 within the chamber 19.

    INTERNAL COMBUSTION ENGINE
    3.
    发明公开

    公开(公告)号:US20230175422A1

    公开(公告)日:2023-06-08

    申请号:US17925174

    申请日:2021-03-16

    申请人: AUDI AG

    IPC分类号: F01M13/00 F01M11/00

    摘要: An internal combustion engine, having a cylinder crankcase delimiting a crank chamber and a lubricant pan accommodating a lubricant sump, which has a lubricant pan upper part arranged between the crank chamber and the lubricant sump and a lubricant pan lower part fastened on the lubricant pan upper part. Multiple ridges originate from a base component of the lubricant pan upper part in the direction of the lubricant sump, which ridges partially intersect and thus form chambers which are peripherally closed in section between them, and lubricant passage openings formed in the lubricant pan upper part open into at least part of the chambers, via which openings the crank chamber and the lubricant sump are fluidically connected.

    OIL MIST SEPARATION MECHANISM OF INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20180038248A1

    公开(公告)日:2018-02-08

    申请号:US15554092

    申请日:2016-02-23

    发明人: Yuichi NAGAYAMA

    IPC分类号: F01M13/04 B01D45/08

    摘要: An oil mist separation mechanism of an internal combustion engine includes an oil mist separation portion being integrally provided with an internal combustion engine main body at an outer surface thereof, the oil mist separation portion for separating an oil mist included in a blow-by gas sent from the internal combustion engine main body, and an oil returning portion being connected to the oil mist separation portion, the oil returning portion returning an oil separated by the oil mist separation portion to an oil stored at a lower portion of the internal combustion engine main body.