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    • 23. 发明申请
    • MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
    • 多缸内燃机
    • US20100192897A1
    • 2010-08-05
    • US12649924
    • 2009-12-30
    • Kenichi OHMORIAkifumi Nomura
    • Kenichi OHMORIAkifumi Nomura
    • F02F7/00
    • F02B61/02F01M11/02F02F7/0007
    • To reduce the height of a crankcase by arranging a communicating passage in a proper position and to miniaturize an engine in a multi-cylinder internal combustion engine provided with an upper crankcase integrated with a cylinder block or provided separately from the cylinder block on the downside of the cylinder block and a lower crankcase connected to a lower part of the upper crankcase and provided with a communicating passage that communicates with internal spaces of plural crank chambers corresponding to plural cylinders. In the multi-cylinder internal combustion engine, a communicating hole that communicates with the communicating passage is provided on at least either side of the upper crankcase or the lower crankcase, and a cover forming the communicating passage is arranged with the cover covering the communicating hole and is attached to both crankcases across a joined plane of the upper crankcase and the lower crankcase.
    • 为了通过将连通通道布置在适当的位置并且在设置有与气缸体一体的上部曲轴箱或与气缸体分开设置的多气缸内燃机中将发动机小型化以减小曲轴箱的高度,所述上部曲轴箱在气缸体的下侧 气缸体和下曲轴箱连接到上曲轴箱的下部,并具有与多个气缸对应的多个曲柄室的内部空间连通的连通通道。 在多气缸内燃机中,在上曲轴箱或下曲轴箱的至少任一侧设置有与连通通路连通的连通孔,并且形成连通通路的盖布置成覆盖着连通孔 并且通过上曲轴箱和下曲轴箱的接合平面连接到两个曲轴箱。
    • 25. 发明授权
    • Variable valve system of internal combustion engine
    • 内燃机变阀系统
    • US07699030B2
    • 2010-04-20
    • US11878240
    • 2007-07-23
    • Akifumi Nomura
    • Akifumi Nomura
    • F01L1/34
    • F01L13/0021F01L1/053F01L1/143F01L1/18F01L1/26F01L1/34F01L1/3442F01L13/0005F01L2001/0537F01L2001/34453F01L2001/34469F01L2001/34489
    • An internal combustion engine includes a variable valve system wherein each cam opens and closes an intake valve and an exhaust valve via each rocker arm. A variable valve system of an internal combustion engine E includes rocker arms rocked by the action of valve driving force of cams with each lift quantity variable mechanism varying a maximum lift quantity of an intake valve and an exhaust valve. The lift quantity variable mechanism includes a lifter that is driven by the cam, and makes the valve driving force act on the rocker arm and a lifter holder that supports the lifter, and is driven by an electric motor and is rocked. The lifter is movably supported by the lifter holder. Maximum lift quantity is varied by varying a position in which the lifter abuts on the rocker arm according to a position in which the lifter holder is turned.
    • 内燃机包括可变阀系统,其中每个凸轮通过每个摇臂打开和关闭进气门和排气门。 内燃机E的可变阀系统包括通过凸轮的阀驱动力的作用而摇摆的摇臂,每个提升量可变机构改变进气门和排气阀的最大提升量。 提升量可变机构包括由凸轮驱动的升降器,并且使得阀驱动力作用在摇臂上,以及支撑升降器的升降器支架,并由电动机驱动并摇动。 升降机由升降器支架可移动地支撑。 通过根据升降器保持器转动的位置改变升降器抵靠摇臂的位置来改变最大提升量。
    • 26. 发明授权
    • Crankshaft phase adjustment structure
    • 曲轴相位调整结构
    • US06698393B2
    • 2004-03-02
    • US10199110
    • 2002-07-22
    • Akifumi Nomura
    • Akifumi Nomura
    • F02F700
    • F02B61/02F02B41/00
    • A crankshaft phase adjustment structure for performing work via a single window. A clutch and ACG are arranged on both right and left sides of a crankcase. On the side of the clutch of the crankshaft, a primary drive gear engaged with a primary driven gear of the clutch is fixed by a bolt. A window for performing work is open to a case cover in the vicinity of the bolt and is covered with a cap. The center line of the window for performing work is set off the axis of the bolt, the window for performing work is located in a position in which a head of the bolt and an alignment mark provided to the outside periphery of the side of the primary drive gear are simultaneously viewed. At the edge of the window for performing work a second alignment mark is provided.
    • 一种用于通过单个窗口进行作业的曲轴相位调整结构。 一个离合器和ACG布置在曲轴箱的左右两侧。 在曲轴的离合器侧,通过螺栓固定与离合器的主从动齿轮啮合的主驱动齿轮。 用于执行作业的窗口对于螺栓附近的壳体盖开放并且被盖子覆盖。 用于进行作业的窗口的中心线从螺栓的轴线排出,执行作业的窗口位于螺栓的头部和设置在主要侧面的外周的对准标记的位置 同时观察驱动齿轮。 在用于执行工作的窗口的边缘处,提供第二对准标记。
    • 27. 发明授权
    • Engine crankshaft support structure
    • 发动机曲轴支撑结构
    • US06672271B2
    • 2004-01-06
    • US10124346
    • 2002-04-18
    • Akifumi NomuraYasuo Shimura
    • Akifumi NomuraYasuo Shimura
    • F02F700
    • F16C35/06F02F7/0053F16C3/10F16C9/02F16C19/06F16C19/26F16C19/54
    • A crankshaft support structure for an engine. An inner race forming a part of a main bearing is loosely fitted onto a bearing seat of a shaft. A direction of thrust is fixed by a flange of a timing sprocket which is press-fitted onto the shaft. The outer diameter R1 of the timing sprocket and the outer diameter R3 of the flange are respectively set so that they are smaller than the outer diameter R4 of the inner race. An outer race of the main bearing is press-fitted and fixed to the side of a left crankcase and a roller is integrated. When the shaft enters the inside of the roller, the timing sprocket and the flange pass through the inside of the roller, and the inner race is fitted to the roller. As a result, the inner diameter R2 of the inner race can be made smaller than the outer diameter R1 of the timing sprocket. Thus the main bearing supporting the crankshaft is miniaturized and lightened.
    • 用于发动机的曲轴支撑结构。 形成主轴承的一部分的内圈松散地安装在轴的轴承座上。 推力方向由压配在轴上的正时链轮的凸缘固定。 正时链轮的外径R1和凸缘的外径R3分别设定为小于内圈的外径R4。 主轴承的外圈压配合并固定在左曲轴箱的一侧,并且一体成型。 当轴进入滚筒内部时,正时链轮和法兰通过滚筒内部,内圈安装在滚筒上。 结果,内圈的内径R2可以小于正时链轮的外径R1。 因此,支撑曲轴的主轴承小型化和轻量化。