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    Cam mechanism having forced-valve-opening/closing cams and cam-profile setting method
    42.
    发明申请
    Cam mechanism having forced-valve-opening/closing cams and cam-profile setting method 失效
    具有强制开阀/闭合凸轮的凸轮机构和凸轮轮廓设定方法

    公开(公告)号：US20080110425A1

    公开(公告)日：2008-05-15

    申请号：US11978635

    申请日：2007-10-30

    Applicant: Tsuneo Endoh ,  Makoto Uda ,  Hiroshi Hanabusa

    Inventor： Tsuneo Endoh ,  Makoto Uda ,  Hiroshi Hanabusa

    IPC: F01L1/047

    CPC classification number: F01L1/30 ,  F01L1/042 ,  F01L1/047 ,  F01L1/08 ,  Y10T29/49293

    Abstract: No-load valve lift correction curves of opening and closing cams are set by offsetting no-load curve sections of basic valve lift curves of the cams in such directions as to increase a clearance between the curves, and they are connected with remaining sections of the curves to provide normal valve lift curves of the cams. Cam profiles of the cams are set on the basis of such normal valve lift curves. The cam profiles are set so that an ultimate speed difference between jumping and landing speeds of a follower on an ultimate valve speed curve determined from ultimate valve lift curves, having first and second shift sections where the follower shifts from the opening cam to the closing cam and from the closing cam to the opening cam, is smaller than a basic speed difference between jumping and landing speeds on a basic valve speed curve.

    Abstract translation: 打开和关闭凸轮的空载气门升程校正曲线是通过偏移凸轮的基本气门升程曲线的空载曲线段来设定，以增加曲线之间的间隙，并与它们的剩余部分相连 曲线提供凸轮的正常气门升程曲线。 凸轮的凸轮轮廓基于这种正常的气门升程曲线设定。 凸轮轮廓被设置成使得从极限气门升程曲线确定的极限阀速度曲线上从动件的跳跃和着陆速度之间的极限速度差异具有第一和第二换档部分，其中从动件从打开凸轮移动到关闭凸轮 并且从关闭凸轮到打开凸轮，小于基本阀速度曲线上的跳跃和着陆速度之间的基本速度差。

    Desmodromic valve system and retrofit kit for conventional pushrod engines including replaceable cam lobes for adjusting lift and duration and hydraulic lifters for increased reliability
    43.
    发明授权
    Desmodromic valve system and retrofit kit for conventional pushrod engines including replaceable cam lobes for adjusting lift and duration and hydraulic lifters for increased reliability 失效
    用于常规推杆发动机的脱污阀系统和改装套件，包括用于调节升程和持续时间的可更换凸轮凸角以及用于提高可靠性的液压挺杆

    公开(公告)号：US07210435B2

    公开(公告)日：2007-05-01

    申请号：US11177205

    申请日：2005-07-08

    Applicant: Julian A. Decuir, Jr.

    Inventor： Julian A. Decuir, Jr.

    IPC: F01L1/30

    CPC classification number: F01L1/30 ,  F01L1/042 ,  F01L1/047 ,  F01L1/146 ,  F01L1/181 ,  F01L1/20 ,  F01L2001/0475 ,  F01L2001/0476 ,  F01L2001/054 ,  F01L2001/2427 ,  F01L2003/11

    Abstract: A desmodromic valve and cam system is provided which is adapted to be installed into an internal combustion pushrod engine. The system includes a camshaft assembly having a plurality of removably attached cam lobes installed onto a main camshaft; a valve connector assembly installed onto a distal tip of each valve; a rocker having a valve movement end mechanically linked to a respective valve connector and a pushrod connecting end mechanically linked to an upper distal end of a pushrod; a hydraulic lifter follower assembly assigned to each valve which includes a pin disposed on a distal end thereof which is adapted to engage and track a follower groove formed on each respective cam lobe; and a pushrod assigned for each valve, each pushrod having lower distal end mechanically linked to a respective hydraulic follower lifter. The configuration of the aforementioned system eliminates the need to use valve springs to return the valves to a closed position, thereby, increasing horsepower and fuel efficiency, while simultaneously reducing emissions.

    Abstract translation: 提供了一种脱粘阀和凸轮系统，其适于安装在内燃推杆发动机中。 该系统包括凸轮轴组件，其具有安装在主凸轮轴上的多个可移除地附接的凸轮凸角; 安装在每个阀的远端上的阀连接器组件; 具有机械连接到相应的阀连接器的阀移动端和与推杆的上远端机械连接的推杆连接端的摇杆; 分配给每个阀的液压提升器随动件组件，其包括设置在其远端上的销，其适于接合和跟踪形成在每个相应凸轮凸角上的从动槽; 以及分配给每个阀的推杆，每个推杆具有与相应的液压从动升降器机械连接的较低远端。 上述系统的配置消除了使用阀弹簧将阀返回到关闭位置的需要，从而提高马力和燃料效率，同时减少排放。

    Valve actuator assembly
    44.
    发明申请
    Valve actuator assembly 审中-公开
    阀门执行器总成

    公开(公告)号：US20060196457A1

    公开(公告)日：2006-09-07

    申请号：US11367968

    申请日：2006-03-03

    Applicant: Charles Shattuck ,  Richard Murphy ,  Carl Davenport

    Inventor： Charles Shattuck ,  Richard Murphy ,  Carl Davenport

    IPC: F01L1/00

    CPC classification number: F01L1/04 ,  F01L1/042 ,  F01L1/14 ,  F01L1/182 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/3442 ,  F01L1/356 ,  F01L13/0031 ,  F01L31/12 ,  F01L2820/032 ,  F16H25/186

    Abstract: A valve actuator assembly includes an axially moveable valve and a ramp roller thrust drive. The ramp roller thrust drive includes at least first and second opposed thrust plates, each plate including one or more ramps. A roller is positioned between corresponding opposed plate ramps and a rotation of one of the thrust plates relative to the other thrust plate causes the plates to move axially relative to one another such that axial motion is imparted to the valve.

    Abstract translation: 阀致动器组件包括可轴向移动的阀和斜坡推力驱动器。 斜坡推力驱动器至少包括第一和第二相对推力板，每个板包括一个或多个坡道。 辊子定位在对应的相对板斜面之间，并且相对于另一推力板的止推板之一的旋转使得板相对于彼此轴向移动，使得轴向运动被赋予阀。

    Valve-operating device for engine
    45.
    发明授权
    Valve-operating device for engine 失效
    用于发动机的阀门操作装置

    公开(公告)号：US06837475B2

    公开(公告)日：2005-01-04

    申请号：US10246763

    申请日：2002-09-19

    Applicant: Fumio Ogata ,  Akihisa Shinoda

    Inventor： Fumio Ogata ,  Akihisa Shinoda

    IPC: F01L1/02 ,  F01L1/04 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F16K35/00

    CPC classification number: F01L1/047 ,  F01L1/02 ,  F01L1/024 ,  F01L1/042 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18

    Abstract: A valve-operating device for an engine includes a camshaft which is disposed on one side of a plane including axes of an exhaust valve and an intake valve and which has an axis substantially perpendicular to the plane. The camshaft and the exhaust and intake valves are connected to each other through a first rocker arm and a second rocker arm which are swingably carried on a rocker shaft disposed substantially perpendicular to the plane. The camshaft is formed with a large-diameter exhaust cam and a small-diameter intake cam adjoining a portion of the exhaust cam on the side of the plane. The exhaust and intake rocker arms are provided with arm portions extending in an axial direction of the camshaft to come into sliding contact with outer peripheral surfaces of the exhaust and intake cams, respectively. Thus, it is possible to open and close the exhaust and intake valves with inherent opening and closing timings, while easily avoiding interferences among components.

    Abstract translation: 用于发动机的阀操作装置包括凸轮轴，该凸轮轴设置在包括排气门和进气门的轴线的平面的一侧，并且具有基本上垂直于该平面的轴线。 凸轮轴和排气和进气阀通过第一摇臂和第二摇臂彼此连接，第一摇臂和第二摇臂臂可摆动地承载在基本上垂直于该平面设置的摇臂上。 凸轮轴形成有大直径排气凸轮和邻近平面侧的排气凸轮的一部分的小直径进气凸轮。 排气和进气摇臂设置有沿凸轮轴的轴向延伸的臂部分别分别与排气和进气凸轮的外周表面滑动接触。 因此，可以以固有的打开和关闭定时来打开和关闭排气和进气门，同时容易地避免部件之间的干扰。

    Valve-operating device for engine
    46.
    发明申请
    Valve-operating device for engine 失效
    用于发动机的阀门操作装置

    公开(公告)号：US20030079700A1

    公开(公告)日：2003-05-01

    申请号：US10246763

    申请日：2002-09-19

    Inventor： Fumio Ogata ,  Akihisa Shinoda

    IPC: F01L001/34 ,  F01L001/18

    CPC classification number: F01L1/047 ,  F01L1/02 ,  F01L1/024 ,  F01L1/042 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18

    Abstract: A valve-operating device for an engine includes a camshaft which is disposed on one side of a plane including axes of an exhaust valve and an intake valve and which has an axis substantially perpendicular to the plane. The camshaft and the exhaust and intake valves are connected to each other through a first rocker arm and a second rocker arm which are swingably carried on a rocker shaft disposed substantially perpendicular to the plane. The camshaft is formed with a large-diameter exhaust cam and a small-diameter intake cam adjoining a portion of the exhaust cam on the side of the plane. The exhaust and intake rocker arms are provided with arm portions extending in an axial direction of the camshaft to come into sliding contact with outer peripheral surfaces of the exhaust and intake cams, respectively. Thus, it is possible to open and close the exhaust and intake valves with inherent opening and closing timings, while easily avoiding interferences among components.

    Abstract translation: 用于发动机的阀操作装置包括凸轮轴，该凸轮轴设置在包括排气门和进气门的轴线的平面的一侧，并且具有基本上垂直于该平面的轴线。 凸轮轴和排气和进气阀通过第一摇臂和第二摇臂彼此连接，第一摇臂和第二摇臂臂可摆动地承载在基本上垂直于该平面设置的摇臂上。 凸轮轴形成有大直径排气凸轮和邻近平面侧的排气凸轮的一部分的小直径进气凸轮。 排气和进气摇臂设置有沿凸轮轴的轴向延伸的臂部分别分别与排气和进气凸轮的外周表面滑动接触。 因此，可以以固有的打开和关闭定时来打开和关闭排气和进气门，同时容易地避免部件之间的干扰。

    Electromechanical valve drive incorporating a nonlinear mechanical transformer
    47.
    发明申请
    Electromechanical valve drive incorporating a nonlinear mechanical transformer 失效
    装有非线性机械变压器的机电阀驱动器

    公开(公告)号：US20030051688A1

    公开(公告)日：2003-03-20

    申请号：US10245453

    申请日：2002-09-17

    Inventor： Woo Sok Chang ,  Thomas A. Keim ,  John G. Kassakian

    IPC: F01L001/30

    CPC classification number: F01L1/042 ,  F01L1/30 ,  F01L9/02 ,  F01L9/04 ,  F01L2009/0411 ,  F01L2105/00 ,  Y10T74/1683

    Abstract: The present invention provides a means to reduce holding current and driving current of EMVD's effectively and practically and to provide soft landing of a valve. The invention incorporates a nonlinear mechanical transformer as part of an EMVD system. The nonlinear mechanical transformer is designed for the spring and the inertia in the EMVD to have desirable nonlinear characteristics. With the presently disclosed invention, the holding current and driving current are reduced and soft valve landing is achieved. The nonlinear characteristics of a nonlinear mechanical transformer can be implemented in various ways. The concept of the invention can be applied not only to EMVD's but also to general reciprocating and bi-stable servomechanical systems, where smooth acceleration, soft landing, and small power consumption are desired.

    Abstract translation: 本发明提供了一种有效和实际地减小EMVD的保持电流和驱动电流并提供阀的软着陆的手段。 本发明将非线性机械变压器作为EMVD系统的一部分。 非线性机械变压器设计用于弹簧，EMVD中的惯性具有理想的非线性特性。 利用目前公开的发明，减小了保持电流和驱动电流，并实现了软阀门的着陆。 非线性机械变压器的非线性特性可以以各种方式实现。 本发明的概念不仅可以应用于EMVD，还可以应用于平滑加速，软着陆和小功率消耗的通用往复式和双稳态伺服机构系统。

    Valve adjustment mechanism for internal combustion engine
    49.
    发明授权
    Valve adjustment mechanism for internal combustion engine 失效
    内燃机阀调节机构

    公开(公告)号：US3911879A

    公开(公告)日：1975-10-14

    申请号：US48713574

    申请日：1974-07-10

    Applicant: DAIMLER BENZ AG

    Inventor： ALTMANN WERNER

    IPC: F01L13/00 ,  F01L31/14 ,  F02F7/00 ,  F01L1/34

    CPC classification number: F01L1/042 ,  F01L13/0063 ,  F01L31/14 ,  F01L2013/0068 ,  F01L2105/00 ,  F02F7/006

    Abstract: A valve-adjusting mechanism for an internal combustion engine in which a drive shaft is constructed as reciprocating crankshaft actuating a connecting rod pivotally connected to the crankshaft so as to move to and fro between a fixed support wall and a pivotally supported wedge-shaped adjusting member extending at an acute angle with respect to the support wall; as a result of the wedging action, the adjusting member thereby carries out an up and down movement which is transmitted onto the valve by way of its valve stem.

    Abstract translation: 一种用于内燃机的阀调节机构，其中驱动轴构造为往复曲轴，其致动连接到曲轴的连杆，以便在固定支撑壁和枢转支撑的楔形调节构件之间来回移动 相对于支撑壁以锐角延伸; 作为楔入动作的结果，调节构件由此执行通过其阀杆传递到阀上的上下运动。

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