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    Diesel engine with dual-lobed intake cam for compression ratio control
    1.
    发明申请
    Diesel engine with dual-lobed intake cam for compression ratio control 有权
    柴油发动机采用双叶进气凸轮进行压缩比控制

    公开(公告)号：US20050132982A1

    公开(公告)日：2005-06-23

    申请号：US10739462

    申请日：2003-12-18

    Applicant: Sherif El Tahry ,  Roger Krieger

    Inventor： Sherif El Tahry ,  Roger Krieger

    IPC: F01L13/00 ,  F02B3/06 ,  F01L1/34

    CPC classification number: F01L1/34416 ,  F01L13/0036

    Abstract: Dual-lobed cams mounted on the intake camshaft of a diesel engine selectively retard timing of the intake valve closure. The purpose of retarding timing of the intake valves is to retard valve closing sufficiently to shorten the effective compression strokes of the pistons and thus reduce the effective compression ratio. This occurs when the intake valves remain open past piston bottom dead center for a desired period into the normal compression stroke phase of engine operation. This reduces compression pressures so that combustion temperatures are reduced and exhaust emissions, primarily NOx, may be thus limited under conditions of warmed-up engine operation. Dual-lobed cams may also be employed to retard timing of the intake valve opening to throttle admitted air during cold running conditions to effect higher in-cylinder charge temperatures to reduce hydrocarbon and white smoke emissions due to poor ignition and incomplete combustion.

    Abstract translation: 安装在柴油发动机的进气凸轮轴上的双凸耳凸轮选择性地延迟进气门关闭的时间。 阻止进气门正时的目的是充分延迟阀关闭，缩短活塞的有效压缩冲程，从而降低有效的压缩比。 当进气阀通过活塞下死点保持打开一段期望的时间时，发生在发动机运转的正常压缩冲程阶段。 这降低了压缩压力，从而降低了燃烧温度，并且在暖机引擎操作的条件下，废气排放物（主要是NOx）可能受到限制。 也可以采用双凸起的凸轮来延迟进气门打开的时间，以便在冷运行状态下节流进入的空气，以实现更高的缸内充气温度，以减少由于点火不良和不完全燃烧引起的碳氢化合物和白烟的排放。

    Cam housing structure for three-dimensional cam
    2.
    发明授权
    Cam housing structure for three-dimensional cam 有权
    三维凸轮的凸轮外壳结构

    公开(公告)号：US09080468B2

    公开(公告)日：2015-07-14

    申请号：US13748911

    申请日：2013-01-24

    Applicant: SUZUKI MOTOR CORPORATION

    Inventor： Hisashi Ozeki

    IPC: F01L1/02 ,  F01L1/053 ,  F01L1/344 ,  F01L13/00 ,  F01M9/10 ,  F01L1/047

    CPC classification number: F01L1/0532 ,  F01L1/34416 ,  F01L13/0042 ,  F01L2001/0476 ,  F01L2001/0537 ,  F01M9/101 ,  F01M9/102

    Abstract: In a cam housing structure for a three-dimensional cam including: plural intake side supporting parts rotatably supporting an intake side camshaft from above; and plural exhaust side supporting parts rotatably supporting an exhaust side camshaft from above at an upper part of a cylinder head, any one of the supporting parts of the intake side supporting parts or the exhaust side supporting parts is coupled to two or more pieces of the other supporting parts via reinforcing members.

    Abstract translation: 在一种用于三维凸轮的凸轮壳体结构中，包括：多个吸入侧支撑部件，其从上方可旋转地支撑进气侧凸轮轴; 以及多个排气侧支撑部件，其从上方在气缸盖的上部可旋转地支撑排气侧凸轮轴，进气侧支撑部件或排气侧支撑部件的任一个支撑部分联接到两个或更多个 其他支撑部件通过加强件。

    System for controlling valve shift timing of an engine
    3.
    发明授权
    System for controlling valve shift timing of an engine 失效
    用于控制发动机的换挡时间的系统

    公开(公告)号：US5329895A

    公开(公告)日：1994-07-19

    申请号：US127280

    申请日：1993-09-27

    Applicant: Masami Nishida ,  Toru Kurisu ,  Takashi Ikai ,  Hiroaki Sugiura ,  Hiroshi Enomoto ,  Masunori Kanda ,  Eiichi Yanagida ,  Hiroaki Deguchi ,  Masaki Fukuma ,  Akira Asai

    Inventor： Masami Nishida ,  Toru Kurisu ,  Takashi Ikai ,  Hiroaki Sugiura ,  Hiroshi Enomoto ,  Masunori Kanda ,  Eiichi Yanagida ,  Hiroaki Deguchi ,  Masaki Fukuma ,  Akira Asai

    IPC: F01L1/34 ,  F01L1/344 ,  F01L13/00 ,  F01L1/08

    CPC classification number: F01L1/34416 ,  F01L1/34 ,  F01L13/0042

    Abstract: An intake valve or an exhaust valve is lifted through a swingable cam by the rotation of a rotatable cam formed in the cam shaft. A surface at which the swingable cam abuts with the rotatable cam is tapered in the axial direction in which said cam shaft extends, and the valve shift timing is changed by transferring the cam shaft, that is, the rotatable cam in the axial direction in which said cam shaft extends. The power transmitting member such as a helical gear to be rotated with the output shaft of the engine is engaged with the cam shaft through a helical spline. The power transmitting member is so arranged as to be unmovable in the axial direction in which said cam shaft extends. The rotational phase of the rotatable cam relative to the output shaft of the engine is changed by displacement of the cam shaft relative to the power transmitting member in the axial direction in which said cam shaft extends.

    Abstract translation: 进气阀或排气阀通过在凸轮轴上形成的可旋转凸轮的旋转而被提升通过可摆动的凸轮。 可摆动凸轮与可旋转凸轮抵接的表面在所述凸轮轴延伸的轴向方向上渐缩，并且通过传递凸轮轴，即沿着轴向方向的可旋转凸轮来改变阀移动正时，其中， 所述凸轮轴延伸。 诸如与发动机的输出轴一起旋转的斜齿轮的动力传递构件通过螺旋花键与凸轮轴接合。 动力传递构件被布置成在所述凸轮轴延伸的轴向方向上不可移动。 旋转凸轮相对于发动机的输出轴的旋转相位通过凸轮轴相对于动力传递部件在所述凸轮轴延伸的轴向方向上的位移而改变。

    VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机阀门机构

    公开(公告)号：US20160273414A1

    公开(公告)日：2016-09-22

    申请号：US15030150

    申请日：2014-10-24

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Shuichi EZAKI ,  Hidetoshi HIROSE

    IPC: F01L1/18 ,  F01L1/26 ,  F01L1/24 ,  F01L13/00

    CPC classification number: F01L1/185 ,  F01L1/053 ,  F01L1/18 ,  F01L1/2405 ,  F01L1/255 ,  F01L1/267 ,  F01L1/34416 ,  F01L13/0005 ,  F01L13/0036 ,  F01L13/0057 ,  F01L2001/0473 ,  F01L2810/04

    Abstract: A valve mechanism includes: a support shaft immovably fixed to a main body of an internal combustion engine, a main arm swingably supported by the support shaft; two sub-arms arranged at both sides of the main arm; a coupling support portion swingably supporting and coupling the two sub-arms to the main arm; a cam; and a roller rotatably located in the main arm. Each of the two sub-arms includes: a drive unit pressing and driving a valve; and a contact portion contacting a plunger of a lash adjuster, the contact portion has a curved surface slidably contacting a flat surface formed in a tip portion of the plunger and having an arc-like curved surface shape of which a central axis line corresponds to a central swing axis line of the main arm in a state where the cam abuts on the roller in a base circular portion of the cam.

    Abstract translation: 阀机构包括：不可移动地固定到内燃机主体的支撑轴，由支撑轴可摆动地支撑的主臂; 两个副臂布置在主臂的两侧; 联接支撑部分可摆动地支撑并将两个子臂联接到主臂; 一个凸轮 以及可旋转地位于主臂中的辊。 两个副臂中的每一个包括：驱动单元，按压并驱动阀; 以及与间隙调节器的柱塞接触的接触部分，所述接触部分具有可滑动地接触形成在所述柱塞的顶端部分中的平坦表面并具有弧形曲面形状的曲面，其中心轴线对应于 在凸轮在凸轮的基部圆形部分中抵靠在辊上的状态下，主臂的中心摆动轴线。

    Diesel engine with dual-lobed intake cam for compression ratio control
    5.
    发明授权
    Diesel engine with dual-lobed intake cam for compression ratio control 有权
    柴油发动机采用双叶进气凸轮进行压缩比控制

    公开(公告)号：US07036483B2

    公开(公告)日：2006-05-02

    申请号：US10739462

    申请日：2003-12-18

    Applicant: Sherif H. El Tahry ,  Roger B. Krieger

    Inventor： Sherif H. El Tahry ,  Roger B. Krieger

    IPC: F02B75/02

    CPC classification number: F01L1/34416 ,  F01L13/0036

    Abstract: Dual-lobed cams mounted on the intake camshaft of a diesel engine selectively retard timing of the intake valve closure. The purpose of retarding timing of the intake valves is to retard valve closing sufficiently to shorten the effective compression strokes of the pistons and thus reduce the effective compression ratio. This occurs when the intake valves remain open past piston bottom dead center for a desired period into the normal compression stroke phase of engine operation. This reduces compression pressures so that combustion temperatures are reduced and exhaust emissions, primarily NOx, may be thus limited under conditions of warmed-up engine operation. Dual-lobed cams may also be employed to retard timing of the intake valve opening to throttle admitted air during cold running conditions to effect higher in-cylinder charge temperatures to reduce hydrocarbon and white smoke emissions due to poor ignition and incomplete combustion.

    Abstract translation: 安装在柴油发动机的进气凸轮轴上的双凸耳凸轮选择性地延迟进气门关闭的时间。 阻止进气门正时的目的是充分延迟阀关闭，缩短活塞的有效压缩冲程，从而降低有效的压缩比。 当进气阀通过活塞下死点保持打开一段期望的时间时，发生在发动机运转的正常压缩冲程阶段。 这降低了压缩压力，从而降低了燃烧温度，并且在暖机引擎操作的条件下，废气排放物（主要是NOx）可能受到限制。 也可以采用双凸起的凸轮来延迟进气门打开的时间，以便在冷运行状态下节流进入的空气，以实现更高的缸内充气温度，以减少由于点火不良和不完全燃烧引起的碳氢化合物和白烟的排放。

    Variable cam system
    10.
    发明申请
    Variable cam system 审中-公开
    可变凸轮系统

    公开(公告)号：US20060130791A1

    公开(公告)日：2006-06-22

    申请号：US11305768

    申请日：2005-12-15

    Applicant: Dong Chul Lee

    Inventor： Dong Chul Lee

    IPC: F01L1/34

    CPC classification number: F01L1/08 ,  F01L1/022 ,  F01L1/0532 ,  F01L1/143 ,  F01L1/34416 ,  F01L13/0042

    Abstract: A variable cam system which in one embodiment includes cams having a contacting surface formed by an involute curve, a cam shaft, and an actuator for moving the shaft in a longitudinal direction. The operating displacement of the cams may be varied by longitudinally moving the cam shaft.

    Abstract translation: 一种可变凸轮系统，其在一个实施例中包括具有由渐开线曲线形成的接触表面的凸轮，凸轮轴和用于沿纵向方向移动轴的致动器。 凸轮的操作位移可以通过纵向移动凸轮轴来改变。

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