公开(公告)号：US20110000452A1

公开(公告)日：2011-01-06

申请号：US12865967

申请日：2009-02-06

Applicant: Hiroki Fujii ,  Kimihiko Todo

Inventor： Hiroki Fujii ,  Kimihiko Todo

IPC: F01L1/14

CPC classification number: F01L1/2405 ,  F01L1/2411 ,  F01L1/2416 ,  F01L1/2422 ,  F01L1/25 ,  F01L1/255 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2820/01

Abstract: A lash adjuster in which, when a plunger descends, a valve element moves to a valve-closed position without delay. A check valve (27) has a valve hole (28) penetrating through a bottom wall (17) of a plunger (12), a retainer (30) placed in a high pressure chamber (25) and vertically moving together with the plunger (12), and a valve element (29) capable of vertically moving in the high pressure chamber (25), between a valve-opened position at which the valve element (29) is separated from the valve hole (28) to be placed on the retainer (30) and a valve-closed position which is located above the valve-opened position and at which the valve element (29) closes the valve hole (28). When the plunger (12) is at a standstill, the valve element (29) is held at the valve-opened position by the self-weight.

Abstract translation: 间隙调节器，其中当柱塞下降时，阀元件没有延迟地移动到阀关闭位置。 止回阀（27）具有穿过柱塞（12）的底壁（17）的阀孔（28），置于高压室（25）中的保持器（30）并与柱塞一起垂直移动 12），以及阀元件（29），其能够在阀元件（29）与阀孔（28）分离的阀打开位置之间在高压室（25）中垂直移动以被放置在 所述保持器（30）和位于所述阀打开位置上方并且所述阀元件（29）关闭所述阀孔（28）的阀关闭位置。 当柱塞（12）处于停止状态时，阀元件（29）通过自重保持在阀打开位置。

公开(公告)号：US08371258B2

公开(公告)日：2013-02-12

申请号：US12865967

申请日：2009-02-06

Applicant: Hiroki Fujii ,  Kimihiko Todo

Inventor： Hiroki Fujii ,  Kimihiko Todo

IPC: F01L1/14

CPC classification number: F01L1/2405 ,  F01L1/2411 ,  F01L1/2416 ,  F01L1/2422 ,  F01L1/25 ,  F01L1/255 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2820/01

Abstract: A lash adjuster includes a cylindrical body, a cylindrical plunger, a low pressure chamber defined in the plunger, a high pressure chamber defined in a hollow lower interior of the body and filled with an operating fluid, a check valve allowing the operating fluid to flow into the high pressure chamber when in a valve-opened state and cutting off flow of the operating fluid from the high pressure chamber into the low pressure chamber when in a valve-closed state. A retainer of the check valve includes a base plate and a cylindrical portion extending upward from an outer circumferential edge of the base plate so as to surround the valve element. The base plate includes a central portion on which the valve element is placed and which has an upper surface formed with a swollen portion. The cylindrical portion has a plurality of openings formed through it circumferentially equiangularly.

Abstract translation: 间隙调节器包括圆柱形主体，圆柱形柱塞，限定在柱塞中的低压室，限定在主体的中空下部内部并且填充有工作流体的高压室，允许工作流体流动的止回阀 在处于阀打开状态时进入高压室，并且当处于阀关闭状态时，将工作流体从高压室流入低压室。 止回阀的保持器包括基板和从基板的外周边缘向上延伸以围绕阀元件的圆柱形部分。 基板包括中心部分，阀元件放置在该中心部分上，并且具有形成有肿胀部分的上表面。 圆柱形部分具有沿圆周等角度形成的多个开口。

公开(公告)号：US20080216785A1

公开(公告)日：2008-09-11

申请号：US12073431

申请日：2008-03-05

Applicant: Hiroki Fujii ,  Kimihiko Todo ,  Tomiyasu Hirano

Inventor： Hiroki Fujii ,  Kimihiko Todo ,  Tomiyasu Hirano

IPC: F01L1/20 ,  F01L1/24

CPC classification number: F01L1/2405 ,  F01L2820/01 ,  F16K15/044 ,  F16K15/048

Abstract: A lash adjuster includes a plunger and a cylinder. The cylinder includes a high-pressure chamber defined therein. The plunger has a valve port provided through a bottom wall thereof. The valve port includes a seat. A spherical valve body is accommodated in the high-pressure chamber. The valve body is made of ceramic material containing silicon nitride. The valve body is arranged to have a surface roughness average (Ra) of equal to or less than 0.13 μm. The valve body is arranged to have a contact pressure of equal to or lower than 1386 Mpa with the seat in a state where the valve port is closed by the valve body.

Abstract translation: 间隙调节器包括柱塞和气缸。 气缸包括限定在其中的高压室。 柱塞具有通过其底壁设置的阀口。 阀口包括座。 球形阀体容纳在高压室中。 阀体由含有氮化硅的陶瓷材料制成。 阀体的表面粗糙度平均值（Ra）为0.13μm以下。 阀体设置成在阀口由阀体关闭的状态下具有等于或低于1386Mpa的接触压力。

公开(公告)号：US20080066705A1

公开(公告)日：2008-03-20

申请号：US11896896

申请日：2007-09-06

Applicant: Kimihiko Todo ,  Hiroki Fujii

Inventor： Kimihiko Todo ,  Hiroki Fujii

IPC: F01L1/245

CPC classification number: F01L1/2405

Abstract: A return spring 35 is formed using a compression coil spring that is installed so that its axial direction is an up-down direction. The return spring 35 is provided in a high-pressure chamber 14, and powers a plunger 20 in an upwards direction. A coil diameter of the return spring 35 varies along the axial direction. When the return spring 35 is in a maximally compressed state, an axial direction dimension (up-down direction dimension) is smaller than a dimension that is a thickness of a spring wire 36 multiplied by the number of coil turns. Hence, an overall height of a lash adjuster A can be reduced in comparison to when a return spring with a constant coil diameter over an entire length is used.

Abstract translation: 使用安装成使其轴向为上下方向的压缩螺旋弹簧形成复位弹簧35。 复位弹簧35设置在高压室14内，向上方向柱塞20供电。 复位弹簧35的线圈直径沿着轴向方向变化。 当复位弹簧35处于最大压缩状态时，轴向尺寸（上下方向尺寸）小于弹簧丝36的厚度乘以线圈匝数的尺寸。 因此，当使用在整个长度上具有恒定线圈直径的复位弹簧时，可以减小间隙调节器A的整体高度。

公开(公告)号：US06823826B1

公开(公告)日：2004-11-30

申请号：US10722670

申请日：2003-11-24

Applicant: Akira Sugiura ,  Kimihiko Todo ,  Hitoshi Tsuge ,  Koichi Shimizu

Inventor： Akira Sugiura ,  Kimihiko Todo ,  Hitoshi Tsuge ,  Koichi Shimizu

IPC: F01L134

CPC classification number: F01L13/0005 ,  F01L1/267 ,  F01L13/0015 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00

Abstract: The current invention provides an inexpensive variable valve mechanism that includes a first intervening member which rotates a small angle rotation about an axis of a support shaft by being pressed by a rotating cam and a second intervening member which lifts a valve by making a small angle rotation about an axis of the support shaft together with the first intervening member thus pressing a cam corresponding part of a rocker arm. The variable valve mechanism further includes a control shaft which is provided concentrically with the support shaft, a slider which moves with the control shaft, a slanted part which is formed diagonally relative to the slider's movement direction and is in contact with the slider, and a relative rotation angle control device which varies the relative rotation angle of the first intervening member and the second intervening member by pressing the slanted part in a direction substantially perpendicular to the slider's movement direction by moving the slider together with the control shaft, thus varying the valve's lift and operating angle continuously.

Abstract translation: 本发明提供了一种便宜的可变阀机构，其包括第一中间构件，其通过被旋转凸轮按压而围绕支撑轴的轴线旋转小角度旋转;以及第二中间构件，其通过使小角度旋转来提升阀 围绕支撑轴的轴线与第一中间构件一起，因此按压摇臂的凸轮对应部分。 可变阀机构还包括与支撑轴同心设置的控制轴，与控制轴一起移动的滑块，相对于滑块的移动方向对角地形成并与滑块接触的倾斜部， 相对旋转角度控制装置，通过使滑块与控制轴一起移动，通过沿着与滑块的运动方向基本垂直的方向按压倾斜部分来改变第一中间部件和第二中间部件的相对旋转角度，从而改变阀 升降和运行角度不断。

公开(公告)号：US20110017160A1

公开(公告)日：2011-01-27

申请号：US12920748

申请日：2009-02-16

Applicant: Masateru Kishi ,  Kimihiko Todo

Inventor： Masateru Kishi ,  Kimihiko Todo

IPC: F01L1/18 ,  B23P19/00

CPC classification number: F01L1/2405 ,  F01L1/185 ,  F01L2001/187 ,  F01L2105/00

Abstract: A rocker arm unit comprises a lash adjuster having a plunger extending axially and a cylindrical body which houses the plunger so that the plunger is slidable; a rocker arm supported by an upper end of the plunger and swung with the supported position serving as a pivot; and a clip which is fixed to the body so as to extend from the fixed position to engage the rocker arm, thereby restricting drop of the rocker arm out of the lash adjuster.

Abstract translation: 摇臂单元包括间隙调节器，其具有轴向延伸的柱塞和容纳柱塞的柱形体，使得柱塞可滑动; 摇杆，其由柱塞的上端支撑并以支撑位置摆动作为枢轴; 以及固定在主体上以从固定位置延伸以接合摇臂的夹子，从而限制摇臂从间隙调节器的下落。

公开(公告)号：US08056524B2

公开(公告)日：2011-11-15

申请号：US11896896

申请日：2007-09-06

Applicant: Kimihiko Todo ,  Hiroki Fujii

Inventor： Kimihiko Todo ,  Hiroki Fujii

IPC: F01L1/14

CPC classification number: F01L1/2405

Abstract: A return spring is formed using a compression coil spring that is installed so that its axial direction is an up-down direction. The return spring is provided in a high-pressure chamber, and powers a plunger in an upwards direction. A coil diameter of the return spring varies along the axial direction. When the return spring is in a maximally compressed state, an axial direction dimension (up-down direction dimension) is smaller than a dimension that is a thickness of a spring wire multiplied by the number of coil turns. Hence, an overall height of a lash adjuster A can be reduced in comparison to when a return spring with a constant coil diameter over an entire length is used.

Abstract translation: 使用安装成使其轴向为上下方向的压缩螺旋弹簧形成复位弹簧。 复位弹簧设置在高压室中，向上方向柱塞供电。 复位弹簧的线圈直径沿轴向方向变化。 当复位弹簧处于最大压缩状态时，轴向尺寸（上下方向尺寸）小于弹簧丝的厚度乘以线圈匝数的尺寸。 因此，当使用在整个长度上具有恒定线圈直径的复位弹簧时，可以减小间隙调节器A的整体高度。

公开(公告)号：US20070175428A1

公开(公告)日：2007-08-02

申请号：US11700110

申请日：2007-01-31

Applicant: Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

Inventor： Naoki Hiramatsu ,  Akira Takeuchi ,  Kimihiko Todo ,  Tomiyasu Hirano ,  Yoshio Kawatake

IPC: F01L1/02 ,  F01L1/18

CPC classification number: F01L1/185 ,  B21K1/205 ,  F01L1/181 ,  Y10T29/49295 ,  Y10T74/20882

Abstract: A rocker arm 6 that is rockably attached to a cylinder head 1 actuates a valve 4 by means of a guide groove 73b that is formed at an end thereof engaging with an upper end of a valve stem 41, and a roller 8 that is mounted in a roller housing portion 72 of the arm main unit 7 contacting against a cam 31 and rocking. The guide groove 73b is formed by press working ends of the arm main unit 7 in the thickness direction of the plate material to form a pair of walls 73d, and thereafter applying sandwiching pressure in the lateral direction to the walls 73d to increase the height thereof.

Abstract translation: 可摇动地附接到气缸盖1的摇臂6通过形成在其与阀杆41的上端接合的端部处的引导槽73b来驱动阀4，并且安装有辊8 在臂主体单元7的与凸轮31接触并摆动的滚筒收纳部分72中。 引导槽73b通过臂主体7的板材的厚度方向的冲压加工端形成，形成一对壁73d，然后向侧壁73d施加横向夹持压力以增加 其高度。

公开(公告)号：US08561586B2

公开(公告)日：2013-10-22

申请号：US12920748

申请日：2009-02-16

Applicant: Masateru Kishi ,  Kimihiko Todo

Inventor： Masateru Kishi ,  Kimihiko Todo

IPC: F01L1/18

CPC classification number: F01L1/2405 ,  F01L1/185 ,  F01L2001/187 ,  F01L2105/00

Abstract: A rocker arm unit which constitutes a valve gear of an internal combustion engine, includes a lash adjuster including a cylindrical body and a plunger formed into a cylindrical shape and accommodated in the body, a rocker arm extending in a direction perpendicular to a vertical direction, and a clip configured to be fixed to an upper end of the body and formed with a retainer having a retaining portion which is configured to be swaged onto an inner circumferential surface of the upper end of the body. The clip has an extension extending integrally from the retainer. The extension has an upper end engaged with the rocker arm to prevent the rocker arm from falling off the lash adjuster. The retaining portion is configured to abut against the stepped portion of the plunger from above to prevent the plunger from coming off upwardly out of the body.

Abstract translation: 构成内燃机的阀齿轮的摇臂单元包括：间隙调节器，其包括圆筒体和形成为圆柱形并且容纳在主体中的柱塞;沿与垂直方向垂直的方向延伸的摇臂; 以及被构造成固定到所述主体的上端并且形成有保持器的夹子，所述保持器具有构造成被锻造到所述主体的上端的内周表面上的保持部。 夹子具有从保持器一体地延伸的延伸部。 延伸部具有与摇臂接合的上端，以防止摇臂从间隙调节器上脱落。 保持部构造成从上方抵靠柱塞的阶梯部分，以防止柱塞向上离开身体。

公开(公告)号：US07810461B2

公开(公告)日：2010-10-12

申请号：US11896896

申请日：2007-09-06

Applicant: Kimihiko Todo ,  Hiroki Fujii

Inventor： Kimihiko Todo ,  Hiroki Fujii

IPC: F01L1/14

Abstract: A return spring is formed using a compression coil spring that is installed so that its axial direction is an up-down direction. The return spring is provided in a high-pressure chamber, and powers a plunger in an upwards direction. A coil diameter of the return spring varies along the axial direction. When the return spring is in a maximally compressed state, an axial direction dimension (up-down direction dimension) is smaller than a dimension that is a thickness of a spring wire multiplied by the number of coil turns. Hence, an overall height of a lash adjuster A can be reduced in comparison to when a return spring with a constant coil diameter over an entire length is used.