Spark ignition type internal combustion engine
    62.
    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:US07997241B2

    公开(公告)日:2011-08-16

    申请号:US12441599

    申请日:2007-09-19

    IPC分类号: F01L1/34

    摘要: In a spark ignition type internal combustion engine that includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and a variable valve mechanism capable of changing valve characteristics of an intake valve or an exhaust valve, the variable valve mechanism is mechanically coupled to the variable compression ratio mechanism, and the variable valve mechanism is controlled in accordance with the compression ratio-changing operation amount of the variable compression ratio mechanism. The variable valve mechanism is coupled to the variable compression ratio mechanism without intervention of an electronic control unit. Therefore, the possibility of the interference between a piston and an intake valve resulting from an abnormality in a control system that includes an electronic control unit as an intervening unit can be eliminated.

    摘要翻译: 在包括能够改变机械压缩比的可变压缩比机构的火花点火式内燃机和能够改变进气门或排气门的阀特性的可变气门机构中,可变气门机构机械地联接到 可变压缩比机构和可变气门机构根据可变压缩比机构的压缩比变化操作量进行控制。 可变气门机构连接到可变压缩比机构,而不需要电子控制单元的干预。 因此,可以消除由包括作为中间单元的电子控制单元的控制系统的异常导致的活塞与进气阀之间的干涉的可能性。

    SPARK IGNITION TYPE INTERNAL COMBUSTION ENGINE
    63.
    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:US20100282215A1

    公开(公告)日:2010-11-11

    申请号:US12672186

    申请日:2008-11-05

    IPC分类号: F02B75/04 F01L1/34

    摘要: In an internal combustion engine, a variable compression ratio mechanism (A) able to change a mechanical compression ratio and a variable valve timing mechanism (B) able to control the closing timing of an intake valve (7) 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. Combustion is performed by a stoichiometric air-fuel ratio at the engine high load operation side, and combustion is performed by a lean air-fuel ratio at the engine low load operation side where the mechanical compression ratio becomes the maximum mechanical compression ratio.

    摘要翻译: 在内燃机中,提供能够改变机械压缩比的可变压缩比机构(A)和能够控制进气门(7)的关闭正时的可变气门正时机构(B)。 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通过理论空燃比进行燃烧,在机械压缩比成为最大机械压缩比的发动机低负荷运转侧通过稀薄空燃比进行燃烧。

    Spark ignition type internal combustion engine
    64.
    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:US07802543B2

    公开(公告)日:2010-09-28

    申请号:US12226327

    申请日:2007-04-09

    IPC分类号: F02D15/04 F02D13/00

    摘要: An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and an actual compression action start timing changing mechanism able to change a start timing of an actual compression action. An amount of intake air in accordance with the required load is fed into a combustion chamber by controlling the closing timing of the intake valve, while a pressure, temperature or density in the combustion chamber at the end of a compression stroke is maintained substantially constant regardless of the engine load by controlling the mechanical compression ratio.

    摘要翻译: 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够改变实际压缩动作的起动定时的实际压缩动作开始时刻变更机构。 通过控制进气门的关闭正时,通过控制进气阀的关闭正时,将所需负荷的进气量供给到燃烧室,同时压缩冲程结束时燃烧室内的压力,温度或密度保持不变 通过控制机械压缩比来控制发动机负荷。

    Mount apparatus for variable compression ratio internal combustion engine
    66.
    发明授权
    Mount apparatus for variable compression ratio internal combustion engine 有权
    可变压缩比内燃机的安装装置

    公开(公告)号:US07487747B2

    公开(公告)日:2009-02-10

    申请号:US10582158

    申请日:2005-05-13

    IPC分类号: F02B75/04

    摘要: An internal combustion engine 1 in which the compression ratio can be varied by moving a cylinder block and a crankcase along the axial direction of the cylinder is mounted on a vehicle body member 29 by at least two portions including a first mount portion 32 provided on a transmission apparatus to and a second mount portion 31 provided on the internal combustion engine 1, wherein said second mount portion 31 is provided on the crankcase 4. The first mount portion 32 and the second mount portion 31 are arranged in such a way that the direction of a rotation moment TD about the output shaft RC1 of the transmission apparatus acting on the internal combustion engine 1 upon combustion becomes opposite to the direction of a rotation moment M1 about the output shaft RC1 generated by a force acting on a cylinder block 3 upon changing the compression ratio.

    摘要翻译: 可以通过使气缸体和曲轴箱沿着气缸的轴向移动而使压缩比变化的内燃机1通过至少两个部分安装在车体构件29上,该至少两个部分包括设置在缸体上的第一安装部32 传动装置和设置在内燃机1上的第二安装部分31,其中所述第二安装部分31设置在曲轴箱4上。第一安装部分32和第二安装部分31被布置成使得方向 在燃烧时作用在内燃机1上的传动装置的输出轴RC1的旋转力矩TD与在改变时作用在气缸体3上的力产生的输出轴RC1周围的旋转力矩M1的方向相反 压缩比。

    Internal combustion engine with variable compression ratio and valve characteristics

    公开(公告)号:US20070095313A1

    公开(公告)日:2007-05-03

    申请号:US11589173

    申请日:2006-10-30

    IPC分类号: F02B75/02 F01L1/34 F02B75/04

    摘要: When controlling the valve characteristics of an intake valve and changing the compression ratio, an upper variation limit compression ratio, which is the upper limit of the variation of compression ratio, is determined according to the actual valve characteristics of the intake valve characteristics control. The upper variation limit compression ratio is set to a valve at which the intake valve does not collide with the piston. When a target compression ratio corresponding to the operation state of the engine is larger than the upper variation limit compression ratio, the compression ratio is set to the upper variation limit compression ratio that is smaller than the target compression ratio. Thus, collision between the intake valve and the piston can be prevented while allowing the compression ratio to be increased up to the maximum compression ratio of the range where the collision does not occur.