公开(公告)号：US06805081B2

公开(公告)日：2004-10-19

申请号：US10455531

申请日：2003-06-06

申请人： Masahiko Watanabe ,  Tamotsu Todo ,  Kazuhiko Takayanagi

发明人： Masahiko Watanabe ,  Tamotsu Todo ,  Kazuhiko Takayanagi

IPC分类号： F01L134

CPC分类号： F01L1/344 ,  F01L1/34 ,  Y10T464/30

摘要： A valve timing control device for an internal combustion engine, comprises a drive rotary member rotated by a crankshaft of the engine, a driven rotary member to rotate a camshaft of the engine upon rotation of the drive rotary member; a rotational phase control mechanism having an intermediate rotary member rotated relative to the drive and driven rotary members to cause relative rotation between the drive and driven rotary members and an braking mechanism having a hysteresis brake that generates a braking force to cause the intermediate rotary member to rotate relative to the drive and driven rotary members.

摘要翻译： 一种用于内燃机的气门正时控制装置，包括由发动机的曲轴旋转的驱动旋转构件，驱动旋转构件，用于在驱动旋转构件旋转时使发动机的凸轮轴旋转; 旋转相位控制机构，其具有相对于驱动旋转构件旋转的中间旋转构件，以及驱动旋转构件和从动旋转构件之间的相对旋转;以及具有滞后制动器的制动机构，该制动机构产生制动力以使中间旋转构件 相对于驱动和驱动旋转构件旋转。

公开(公告)号：US20060207536A1

公开(公告)日：2006-09-21

申请号：US11435758

申请日：2006-05-18

申请人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

发明人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

IPC分类号： F01L1/34

CPC分类号： F01L1/022 ,  F01L1/34 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2101/00 ,  F01L2820/032

摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.

公开(公告)号：US07077086B2

公开(公告)日：2006-07-18

申请号：US11076156

申请日：2005-03-10

申请人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

发明人： Tamotsu Todo ,  Shinichi Kawada ,  Keisuke Takeda ,  Mikihiro Kajiura

IPC分类号： F01L1/34

CPC分类号： F01L1/022 ,  F01L1/34 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2101/00 ,  F01L2820/032

摘要： A variable valve system varies an operation condition of an engine valve by controlling an angular position of a control shaft in accordance with an operation condition of the engine. The system has an actuating mechanism for actuating the control shaft. The actuating mechanism comprises a threaded shaft that is rotated about its axis in accordance with the operation condition of the engine; a nut member operatively engaged with the threaded shaft, so that upon rotation of the threaded shaft the nut member runs axially along the threaded shaft; a link mechanism provided between the control shaft and the nut member, so that the axial movement of the nut member along the threaded shaft induces a rotational motion of the control shaft; and a biasing mechanism that biases the nut member relative to the threaded shaft at least at a predetermined range of the operation condition of the engine valve.

摘要翻译： 可变阀系统通过根据发动机的操作条件控制控制轴的角位置来改变发动机气门的操作状态。 该系统具有用于致动控制轴的致动机构。 致动机构包括螺纹轴，该螺纹轴根据发动机的运行状态绕其轴线旋转; 螺母构件与螺纹轴可操作地接合，使得当螺纹轴旋转时，螺母构件沿着螺纹轴轴向延伸; 连杆机构，设置在所述控制轴和所述螺母构件之间，使得所述螺母构件沿着所述螺纹轴的轴向运动引起所述控制轴的旋转运动; 以及偏置机构，其至少在发动机气门的操作状态的预定范围内相对于螺纹轴偏压螺母构件。

公开(公告)号：US06502537B2

公开(公告)日：2003-01-07

申请号：US10042257

申请日：2002-01-11

申请人： Tamotsu Todo ,  Masahiko Watanabe

发明人： Tamotsu Todo ,  Masahiko Watanabe

IPC分类号： F01L134

CPC分类号： F01L1/34 ,  F01L1/352

摘要： A relative rotation angle control mechanism of a valve timing control device comprises a radial guide provided by one of drive and driven rotation members which are rotatable about a given axis. A movable control member is guided by the radial guide in a manner to move in a radial direction with respect to the given axis. A link links the movable control member to a given portion of the other of the drive and driven members. The given portion is positioned away from the given axis in a radial direction. An intermediate rotation member is rotatable about the given axis relative to both the drive and driven rotation members. A spiral guide is provided by the intermediate rotation member to guide the movement of the movable control member, so that rotation of the intermediate rotation member relative to the radial guide induces a radial movement of the movable control member. A sliding resistance reducing structure is further arranged between the movable control member and the intermediate rotation member to reduce a sliding resistance produced when the movable control member is moved.

公开(公告)号：US07032551B2

公开(公告)日：2006-04-25

申请号：US11068928

申请日：2005-03-02

申请人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

发明人： Kaoru Eguchi ,  Masaru Nemoto ,  Yoshihiko Yamada ,  Tamotsu Todo

IPC分类号： F01L1/34

CPC分类号： F01L13/0021 ,  F01L1/143 ,  F01L13/0026 ,  F01L2013/0073 ,  F01L2103/00

摘要： A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3. With this configuration, a rocking cam 7 is rocked with respect to the drive shaft 3 through a link member 15. A valve lifter 6 is pushed downward by rocking of the rocking cam 7. The control shaft 32 is integrally provided with a control cam which is eccentric with respect to an axis of the control shaft 32. If the control cam is rotated, a rocking fulcrum position of the rocker arm 13 is changed, thereby varying a valve-lift amount. An eccentric bush 22 is provided on an inner peripheral surface of the rocker arm 13 on an outer periphery side of the control cam. The eccentric bush 22 meshes with an inner peripheral gear formed on an inner periphery of the rocker arm 13 by an outer peripheral gear 39b, and is coupled to the rocker arm 13. This coupled state is released by moving the eccentric bush 22 in the axial direction. In this state, the eccentric bush 22 is rotated by a predetermined amount with respect to the control cam and the rocker arm 13, thereby adjusting the valve-lift amount.

摘要翻译： 通过驱动轴3的旋转，摇臂13相对于控制轴32通过连杆臂14摇摆。 利用这种构造，摆动凸轮7通过连杆构件15相对于驱动轴3摆动。 通过摇摆凸轮7的摆动来向下推动气门挺杆6。 控制轴32一体地设置有相对于控制轴32的轴线偏心的控制凸轮。 如果控制凸轮旋转，则摇臂13的摆动支点位置改变，从而改变气门升程量。 偏心衬套22设置在控制凸轮的外周侧的摇臂13的内周面上。 偏心衬套22与通过外周齿轮39b形成在摇臂13的内周上的内周齿轮啮合，并且联接到摇臂13。 通过使偏心衬套22沿轴向移动来释放该联接状态。 在这种状态下，偏心衬套22相对于控制凸轮和摇臂13旋转预定量，从而调节气门升程量。

公开(公告)号：US06672265B2

公开(公告)日：2004-01-06

申请号：US10267864

申请日：2002-10-10

申请人： Tamotsu Todo ,  Kazuhiko Takayanagi ,  Shigeaki Yamamuro ,  Naotaka Nakura

发明人： Tamotsu Todo ,  Kazuhiko Takayanagi ,  Shigeaki Yamamuro ,  Naotaka Nakura

IPC分类号： F01L134

CPC分类号： F01L1/34409 ,  F01L1/022 ,  F01L1/34 ,  F01L2101/00

摘要： In a valve timing control system, an intermediate rotator is rotated with respect to a driving plate and a lever shaft to make radial displacement of a ball engaged with a spiral slot of the intermediate rotator along a radial slot. The radial displacement is converted into relative rotation of the driving plate and the lever shaft through a link. A bottomed cylindrical guide member which is rotatably supported by a front end of the link has a base engaged with the spiral slot. The ball engaged with the spiral slot, a retainer for supporting the back of the ball, and a coil spring for biasing the ball through the retainer are accommodated in a hold hole of the guide member. Disengagement of the ball from the spiral slot is prevented by an abutment of an end face of the retainer and a bottom wall of the hold hole.

摘要翻译： 在气门正时控制系统中，中间旋转体相对于驱动板和杠杆轴旋转，以使得与中间旋转器的螺旋槽接合的球沿径向槽径向位移。 径向位移通过连杆转换成驱动板和杠杆轴的相对旋转。 由连杆的前端可旋转地支撑的有底圆柱形引导件具有与螺旋槽接合的底座。 与螺旋槽接合的球，用于支撑球背部的保持器和用于通过保持器偏置球的螺旋弹簧容纳在引导构件的保持孔中。 通过保持器的端面和保持孔的底壁的抵接来防止球脱离螺旋槽。

公开(公告)号：US06520132B2

公开(公告)日：2003-02-18

申请号：US10114063

申请日：2002-04-03

申请人： Tamotsu Todo

发明人： Tamotsu Todo

IPC分类号： F01L1344

CPC分类号： F01L1/3442 ,  F01L2001/34479 ,  F01L2101/00

摘要： A valve timing control system of an internal combustion engine has: a drive force conveyer; a cam shaft; a housing rotating integrally with one of the drive force conveyer and the cam shaft; a vane rotor housed in the housing, the vane rotor rotating integrally with the other of the drive force conveyer and the cam shaft; an advanced angle chamber and a retarded angle chamber housed in the housing, and turning the vane rotor with an oil pressure; an oil pressure supply-drain measure; a lock gear; and an unlock gear. A large diameter section of a lock pin and an inner periphery of a pin hole define a first clearance while a small diameter section of the lock pin and the inner periphery of the pin hole define a second clearance, such that the first clearance is larger than the second clearance.

公开(公告)号：US5070981A

公开(公告)日：1991-12-10

申请号：US589446

申请日：1990-09-27

申请人： Tamotsu Todo

发明人： Tamotsu Todo

IPC分类号： F16D35/02

CPC分类号： F16D35/026

摘要： A fluid coupling includes a valve unit for reducing working fluid introduced into a labyrinth-groove to adjust a ratio of a rotation speed of a cooling fan to that of an internal combustion engine, when the engine speed is rapidly increased. The valve unit comprises a through opening formed in one surface of a partition member which divides an internal space within a housing into two fluid chambers, and a valve plate pivotably supported on the surface of the partition member. The pivotal axis of the valve member is on a plane essentially same as that of the surface of the partition member. When no load is applied to the valve member, the valve member is positioned such that the through opening remains open, and, when force applied thereto by rotation of the housing becomes greater than a predetermined value, the valve member is moved so as to close the through opening.

摘要翻译： 流体联轴器包括阀单元，用于当发动机转速迅速增加时减少引入到迷宫式槽中的工作流体，以调节冷却风扇与内燃机的转速的比率。 阀单元包括形成在分隔构件的一个表面中的通孔，其将壳体内的内部空间分成两个流体室，以及可枢转地支撑在分隔构件的表面上的阀板。 阀构件的枢转轴线在与分隔构件的表面基本相同的平面上。 当没有负载施加到阀构件时，阀构件定位成使得通孔保持打开，并且当通过壳体的旋转而施加到其上的力变得大于预定值时，阀构件被移动以闭合 通过开口。