SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE
    1.
    发明申请
    SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE 有权
    火花点火型内燃机

    公开(公告)号:US20110114063A1

    公开(公告)日:2011-05-19

    申请号:US12674625

    申请日:2008-11-05

    IPC分类号: F02B75/04

    摘要: In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control the closing timing of an intake valve are provided. The mechanical compression ratio is held at a maximum mechanical compression ratio at the engine low load operation side and gradually made to decrease as the engine load increases at the engine high load operation side. The actual compression ratio is held nearly constant at the engine high load operation side and is made to decrease as the engine load decreases at the engine low load operation side.

    摘要翻译: 提供一种内燃机,能够改变机械压缩比的可变压缩比机构和能够控制进气门关闭正时的可变气门正时机构。 发动机低负荷运转侧的机械压缩比保持在最大的机械压缩比,随着发动机高负荷运转侧的发动机负荷的增加而逐渐减小。 在发动机高负荷运转侧,实际的压缩比保持近似恒定,随着发动机低负荷运转侧的发动机负荷减小而减小。

    Spark ignition type internal combustion engine
    5.
    发明授权
    Spark ignition type internal combustion engine 有权
    火花点火式内燃机

    公开(公告)号:US08352157B2

    公开(公告)日:2013-01-08

    申请号:US12674625

    申请日:2008-11-05

    IPC分类号: G06F7/70 F02B75/04

    摘要: In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control the closing timing of an intake valve are provided. The mechanical compression ratio is held at a maximum mechanical compression ratio at the engine low load operation side and gradually made to decrease as the engine load increases at the engine high load operation side. The actual compression ratio is held nearly constant at the engine high load operation side and is made to decrease as the engine load decreases at the engine low load operation side.

    摘要翻译: 提供一种内燃机,能够改变机械压缩比的可变压缩比机构和能够控制进气门关闭正时的可变气门正时机构。 发动机低负荷运转侧的机械压缩比保持在最大的机械压缩比,随着发动机高负荷运转侧的发动机负荷的增加而逐渐减小。 在发动机高负荷运转侧,实际的压缩比保持近似恒定,随着发动机低负荷运转侧的发动机负荷减小而减小。

    Spark ignition type internal combustion engine
    7.
    发明授权
    Spark ignition type internal combustion engine 有权
    火花点火式内燃机

    公开(公告)号:US08322315B2

    公开(公告)日:2012-12-04

    申请号:US12669109

    申请日:2008-11-04

    IPC分类号: F02B75/04 F02B75/32

    摘要: In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control the closing timing of an intake valve are provided. At the time of engine low load operation, the mechanical compression is made the maximum so that the expansion ratio becomes 20 or more. Further, at the time of engine low load operation, in part of the operating region or all of the operating region, the actual compression ratio is lowered compared with the time of the engine high load operation and, at the time of engine low load operation, at least when the actual compression ratio is being lowered compared with the time of engine high load operation, the throttle valve is made to close.

    摘要翻译: 提供一种内燃机,能够改变机械压缩比的可变压缩比机构和能够控制进气门关闭正时的可变气门正时机构。 在发动机低负载运转时,机械压缩最大,使得膨胀比达到20以上。 此外,在发动机低负载运转时,在运转区域的一部分或全部运转区域中,实际压缩比与发动机高负荷运转时相比降低,在发动机低负荷运转时 至少当与发动机高负载运转时相比实际的压缩比被降低时,使节流阀关闭。