公开(公告)号：US20080017147A1

公开(公告)日：2008-01-24

申请号：US11780162

申请日：2007-07-19

申请人： Masahiko TASHIRO

发明人： Masahiko TASHIRO

IPC分类号： F01L1/047

CPC分类号： F01L13/0063 ,  F01L1/267 ,  F01L2001/186 ,  F01L2105/02 ,  Y10T74/20882 ,  Y10T74/2107

摘要： A variable valve system includes a transmission mechanism T which transmits a valve actuating force to an inlet valve 11 and which varies a maximum lift amount of the inlet valve 11 and biasing members 60. A sub-cam 40 oscillatably supported on a holder 30 driven by a control member 70 has a roller 43 contacting the inlet cam 15a, a drive cam portion 46 outputting the valve actuating force, and acting portions A contacting the biasing members 60. The acting portions A are provided in the vicinity of the roller 43 so that biased contact points 45a1, 45b1 are positioned nearer to a cam contact point 43a than an oscillation center line Ls and that an acting line L1 of a biasing force is superposed on the roller 43 as viewed in the direction of the oscillation center line Ls.

摘要翻译： 可变阀系统包括传动机构T，传动机构T将阀致动力传递到入口阀11，并且改变入口阀11和偏压件60的最大提升量。 可摆动地支撑在由控制构件70驱动的保持器30上的副凸轮40具有与入口凸轮15a接触的辊43，输出阀致动力的驱动凸轮部46和与偏置构件60接触的作用部A. 作用部分A设置在辊43附近，使得偏置接触点45a 1，45b 1定位成比振荡中心线Ls更靠近凸轮接触点43a，并且将作用部分A 1的作用线L 1 当从振动中心线Ls的方向观察时，偏压力叠加在辊43上。

公开(公告)号：US20080190390A1

公开(公告)日：2008-08-14

申请号：US12026904

申请日：2008-02-06

申请人： Masahiko TASHIRO

发明人： Masahiko TASHIRO

IPC分类号： F01L1/34 ,  F01L1/245

CPC分类号： F01L1/24 ,  F01L1/20 ,  F01L13/0021 ,  F01L2013/0068 ,  F01L2103/01 ,  Y10T74/20882

摘要： In a lift amount adjusting device in a valve-operating mechanism which changes at least a lift amount, a rocker arm is rockably arranged in a driving-force transmitting path for transmitting a driving force of a valve cam to an engine valve, and a jig abuts on the rocker arm to establish a rocking fulcrum in place of a hydraulic tappet which generates an urging force for adjusting a clearance of the driving-force transmission path. Even when an engine is stopped to make the hydraulic tappet inoperative, the jig secures a rocking fulcrum of the rocker arm, thereby enabling adjustment of the lift amount of the intake valve. Also, a load acting on the rocker arm during the adjustment of a lift amount of the intake valve is supported by the jig, and is not transmitted to the hydraulic tappet.

摘要翻译： 在至少改变升程量的气门操作机构的提升量调节装置中，摇臂被摆动地布置在用于将阀凸轮的驱动力传递到发动机气门的驱动力传递路径中，并且夹具 靠在摇臂上以建立摇摆支点来代替产生用于调节驱动力传递路径的间隙的推动力的液压挺杆。 即使在发动机停止以使液压挺杆不起作用的情况下，夹具也可以固定摇臂的摆动支点，能够调整进气门的升程量。 此外，在调节进气阀的升程量期间作用在摇臂上的负载由夹具支撑，并且不被传递到液压挺杆。

公开(公告)号：US20090308338A1

公开(公告)日：2009-12-17

申请号：US12483809

申请日：2009-06-12

申请人： Masahiko TASHIRO

发明人： Masahiko TASHIRO

IPC分类号： F01L1/04

CPC分类号： F01L1/344 ,  F01L1/047 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L1/26 ,  F01L1/267 ,  F01L1/3442 ,  F01L2001/0473 ,  F01L2001/0478 ,  F01L2001/0537 ,  F01L2001/34469 ,  F01L2001/34489 ,  F01L2105/00 ,  Y10T29/49293

摘要： A valve train of an internal combustion engine is provided with a plurality of camshaft supports arranged on a support member of the engine, and a camshaft is supported on the camshaft supports. The camshaft has valve operating cams thereon for opening and closing engine valves of engine. A torque reducing mechanism is provided to apply a counter torque to the camshaft to suppress torque fluctuation of the camshaft caused by reaction forces applied to the cams by the engine valves. The torque reducing mechanism has a rotating member that rotates together with the camshaft, and a counterforce applying member for applying a counterforce to the rotating member to apply a counter torque to the camshaft. The counterforce applying member is supported on a connecting member connecting adjacent ones of the camshaft supports. The torque reducing mechanism suppresses torque fluctuation of the camshaft, suppresses increase in the weight of the camshaft, and suppresses increase in the size of the engine, ensuring a necessary supporting rigidity for supporting a counterforce applying mechanism included in the torque reducing mechanism.

摘要翻译： 一种内燃机的气门机构设置有布置在发动机的支撑构件上的多个凸轮轴支撑件，凸轮轴支撑在凸轮轴支撑件上。 凸轮轴具有用于打开和关闭发动机的发动机气门的阀操作凸轮。 提供了一种减速机构，用于向凸轮轴施加逆转矩，以抑制由发动机气门施加到凸轮的反作用力引起的凸轮轴的扭矩波动。 减速机构具有与凸轮轴一起旋转的旋转构件，以及用于向旋转构件施加反作用力以向凸轮轴施加逆转矩的反力施加构件。 反力施加构件支撑在连接相邻的凸轮轴支撑件的连接构件上。 转矩降低机构抑制凸轮轴的转矩波动，抑制凸轮轴的重量的增加，抑制发动机的尺寸的增大，确保用于支撑包含在减速机构中的反作用力机构所需的支撑刚性。

公开(公告)号：US20080173263A1

公开(公告)日：2008-07-24

申请号：US12053275

申请日：2008-03-21

申请人： Masahiko TASHIRO

发明人： Masahiko TASHIRO

IPC分类号： F01L1/047

CPC分类号： F01L13/0015 ,  F01L13/0063

摘要： A valve train includes a primary rocker arm 50 oscillating about a primary oscillating center line L4 in response to the rotation of an inlet cam 21, a secondary rocker arm 60 oscillating about a secondary oscillating center line L5 so as to transmit a valve drive force via the primary rocker arm 50 to the inlet valve 14 and a holder 30 which supports the primary and secondary rocker arms 50, 60 in an oscillatory fashion in such a manner that the primary and secondary oscillating center lines L4, L5 oscillate together. A cam profile 55 has a lost motion profile 55a a drive profile 55b are formed on an abutment portion 54 of the primary rocker arm 50. A sectional shape of the lost motion profile 55a is an arc-like shape which is formed about the primary oscillating center line L4.

摘要翻译： 气门机构包括响应于入口凸轮21的旋转围绕主摆动中心线L 4摆动的主摇臂50，围绕第二摆动中心线L 5摆动的副摇臂60，以便传递阀驱动 通过主摇臂50到入口阀14的力;以及支架30，其以振荡的方式支撑主摇臂和第二摇臂50,60，使得主振荡中心线L和第二摆动中心线L5一起摆动 。 凸轮轮廓55具有迷失运动轮廓55a，驱动轮廓55b形成在主摇臂50的邻接部分54上。 失速运动曲线55a的截面形状是围绕主振荡中心线L 4形成的弧形形状。