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    Vibration mode responsive variable damping force shock absorber with feature of automatic selection of damping mode depending upon vibration mode of vehicular body
    2.
    发明授权
    Vibration mode responsive variable damping force shock absorber with feature of automatic selection of damping mode depending upon vibration mode of vehicular body 失效
    振动模式响应可变阻尼力冲击吸收器具有自动选择阻尼模式的特征，依赖于车身振动模式

    公开(公告)号：US5129488A

    公开(公告)日：1992-07-14

    申请号：US612856

    申请日：1990-11-14

    申请人： Takayuki Furuya ,  Fumiyuki Yamaoka

    发明人： Takayuki Furuya ,  Fumiyuki Yamaoka

    IPC分类号： B60G17/08 ,  F16F9/348 ,  F16F9/512

    CPC分类号： F16F9/348 ,  B60G17/08 ,  F16F9/5126 ,  B60G2202/24 ,  B60G2400/91 ,  B60G2500/10 ,  B60G2600/18

    摘要： A variable damping force shock absorber includes a cylinder tube defining therein two axially aligned fluid chambers separated by a piston. The fluid chambers are connected via first and second fluid paths for fluid communication therebetween. A high damping force generating valve is disposed in the first fluid path. A low damping force generating valve is disposed in the second fluid path. A variable orifice is also formed in the second fluid path. The variable orifice is associated with a control valve which adjusts fluid path area of the variable orifice. The control valve is axially shiftable for adjusting the orifice area. A pressure chamber is formed opposing one axial end of the control valve, which pressure chamber is in fluid communication with one of the fluid chamber via the variable orifice. A bias means is active on the other axial end of the control valve, remote from the pressure chamber, for exerting a bias force in a direction opposite to the force exerted by working fluid in the pressure chamber.

    摘要翻译： 可变阻尼力减震器包括在其中限定有由活塞分隔开的两个轴向对准的流体室的气缸套。 流体室经由第一和第二流体路径连接，以在它们之间流体连通。 高阻尼力产生阀设置在第一流体路径中。 低阻尼力产生阀设置在第二流体路径中。 在第二流体路径中还形成可变孔口。 可变孔与调整可变孔的流体路径面积的控制阀相关联。 控制阀可轴向移动以调节孔面积。 压力室形成为与控制阀的一个轴向端相对，该压力室经由可变孔与流体室中的一个流体连通。 偏压装置在远离压力室的控制阀的另一个轴向端处有效，用于在与工作流体在压力室中施加的力相反的方向施加偏压力。

    Hydraulic shock absorber with pre-loaded valve for linear variation characteristics of damping force
    4.
    发明授权
    Hydraulic shock absorber with pre-loaded valve for linear variation characteristics of damping force 失效
    带预压阀的液压减震器，用于阻尼力的线性变化特性

    公开(公告)号：US5042624A

    公开(公告)日：1991-08-27

    申请号：US413066

    申请日：1989-09-27

    申请人： Takayuki Furuya ,  Fumiyuki Yamaoka

    发明人： Takayuki Furuya ,  Fumiyuki Yamaoka

    IPC分类号： F16F9/348

    CPC分类号： F16F9/348 ,  F16F9/3484

    摘要： A hydraulic shock absorber employs first and second stage disc valves arranged in tandem fashion. The first stage disc valve is provided for acting on a relatively small pressure difference for enhanced damping characteristics at a relatively low piston stroke speed range. On the other hand, the second stage disc valve is provided for acting on a greater pressure difference for generating damping a force at a higher piston stroke speed range. The second stage disc valve is initially pre-loaded at a predetermined magnitude of load so as to set a pressure relief point of the second stage disc valve at a desired piston stroke speed for better damping characteristics of the shock absorber.

    摘要翻译： 液压减震器采用以串列方式布置的第一和第二级圆盘阀。 第一级盘式阀被设置用于在相对较小的活塞行程速度范围内作用在较小的压力差上以增强阻尼特性。 另一方面，第二级盘式阀被设置用于作用在较大的压力差上，用于在较高的活塞行程速度范围内产生阻尼力。 第二级盘式阀最初以预定的负载大小预加载，以便将第二级盘式阀的压力释放点设定在期望的活塞行程速度，以获得更好的减振特性。

    Damping force control type shock absorber
    5.
    发明授权
    Damping force control type shock absorber 有权
    阻尼力控制型减震器

    公开(公告)号：US08794405B2

    公开(公告)日：2014-08-05

    申请号：US13338709

    申请日：2011-12-28

    申请人： Mikio Yamashita ,  Fumiyuki Yamaoka

    发明人： Mikio Yamashita ,  Fumiyuki Yamaoka

    IPC分类号： F16F9/34 ,  B60G17/08 ,  B60G13/08

    CPC分类号： B60G17/08 ,  B60G13/08 ,  F16F9/468

    摘要： Oil grooves of a shutter and oil holes of a stepped rod constitute first orifices as variable orifices whose opening areas are variable according to the rotational position of the shutter. The oil grooves of the shutter and oil holes of the stepped rod constitute third orifices as variable orifices. Cut portions of inner disk valves constitute second orifices. The opening areas of the variable orifices are changed by rotating the shutter, thereby controlling damping force characteristics in a low piston speed region and the relief pressures of pressure control valves independently of each other, and thus increasing the degree of freedom for adjusting the damping force characteristics.

    摘要翻译： 挡板的油槽和阶梯杆的油孔构成作为可变孔的第一孔，其开口面积根据闸门的旋转位置是可变的。 闸门的油槽和阶梯杆的油孔构成可变孔的第三孔。 内盘阀的切割部分构成第二孔。 通过旋转闸门来改变可变孔的开口面积，由此控制低活塞速度区域中的阻尼力特性和压力控制阀的释放压力彼此独立地进行，从而增加了调节阻尼力的自由度 特点

    Shock absorber
    6.
    发明授权
    Shock absorber 有权
    减震器

    公开(公告)号：US08590680B2

    公开(公告)日：2013-11-26

    申请号：US13036598

    申请日：2011-02-28

    申请人： Atsushi Maeda ,  Masaru Kouyama ,  Mikio Yamashita ,  Fumiyuki Yamaoka

    发明人： Atsushi Maeda ,  Masaru Kouyama ,  Mikio Yamashita ,  Fumiyuki Yamaoka

    IPC分类号： F16F9/34

    CPC分类号： F16F9/34

    摘要： A shock absorber includes a first passage and a second passage to which a working fluid flows out from one chamber in a cylinder by movement of a piston, a damping valve installed on the first passage and configured to regulate a flow of the working fluid caused by sliding of the piston to generate a damping force, a back pressure chamber applying an internal pressure to the damping valve in a closing direction of the damping valve, a back pressure chamber inflow oil passage introducing the working fluid from one chamber into the back pressure chamber, a pressure chamber provided in-between on the second passage, and a free piston installed in the pressure chamber so as to freely slide in the pressure chamber.

    摘要翻译： 减震器包括第一通道和第二通道，工作流体通过活塞的移动从气缸中的一个室流出，阻尼阀安装在第一通道上并被构造成调节由 活塞滑动以产生阻尼力;背压室，其在阻尼阀的关闭方向上向阻尼阀施加内部压力;背压室流入油通道，其将工作流体从一个室引入到背压室 设置在第二通道之间的压力室和安装在压力室中以在压力室中自由滑动的自由活塞。

    Variable damping force shock absorber with feature of linear and wide range damping force variation depending upon piston stroke speed
    7.
    发明授权
    Variable damping force shock absorber with feature of linear and wide range damping force variation depending upon piston stroke speed 失效
    可变阻尼力减震器具有线性和宽范围的阻尼力变化，具体取决于活塞行程速度

    公开(公告)号：US5193655A

    公开(公告)日：1993-03-16

    申请号：US911376

    申请日：1992-07-13

    申请人： Mitsuo Sasaki ,  Shinobu Kakizaki ,  Fumiyuki Yamaoka ,  Hiroyuki Shimizu

    发明人： Mitsuo Sasaki ,  Shinobu Kakizaki ,  Fumiyuki Yamaoka ,  Hiroyuki Shimizu

    IPC分类号： F16F9/46

    CPC分类号： F16F9/468 ,  B60G2202/24 ,  B60G2500/102

    摘要： A variable damping force shock absorber includes a cylinder defining therein first and second fluid chambers separated by a valve body. The valve body defines first and second fluid paths for fluid communication between the first and second fluid chambers. A harder damping characteristics valve is associated with the first fluid path. On the other hand, a softer damping characteristics valve is associated with the second fluid path. The valve body has a pair of coaxial arranged grooves. The inner groove is in communication with the first fluid path. Valve seats are formed along respective outer circumference of the inner and outer grooves. The second fluid path is provided with means for varying the fluid path area.

    摘要翻译： 可变阻尼力减震器包括限定有由阀体分隔开的第一和第二流体室的气缸。 阀体限定用于第一和第二流体室之间的流体连通的第一和第二流体路径。 较硬的阻尼特性阀与第一流体路径相关联。 另一方面，较软的阻尼特性阀与第二流体路径相关联。 阀体具有一对同轴布置的凹槽。 内槽与第一流体路径连通。 阀座沿着内槽和外槽的相应外圆周形成。 第二流体路径设置有用于改变流体路径面积的装置。

    SHOCK ABSORBER
    10.
    发明申请
    SHOCK ABSORBER 有权
    减震器

    公开(公告)号：US20120248670A1

    公开(公告)日：2012-10-04

    申请号：US13423698

    申请日：2012-03-19

    申请人： Mikio Yamashita ,  Fumiyuki Yamaoka ,  Masaru Kouyama ,  Atsushi Maeda

    发明人： Mikio Yamashita ,  Fumiyuki Yamaoka ,  Masaru Kouyama ,  Atsushi Maeda

    IPC分类号： B60G15/06 ,  F16F13/00

    CPC分类号： F16F9/49 ,  F16F9/19 ,  F16F9/516 ,  F16F9/585

    摘要： A shock absorber includes first passages configured to communicate two chambers to flow a working fluid therebetween by movement of a piston, and a second passage configured to communicate with one chamber of the two chambers. The first passages have damping valves configured to suppress a flow of the working fluid generated by movement of the piston to generate a damping force. The second passage has a variable orifice having an area adjusted by an elastic member when a piston rod moves in an extension direction, a pressure chamber installed in series with the variable orifice, and a free piston configured to vary a volume of the pressure chamber by movement of the piston.

    摘要翻译： 减震器包括第一通道，第一通道构造成通过活塞的运动而连通两个腔室以使工作流体在其间流动;以及第二通道，其构造成与两个腔室的一个室连通。 第一通道具有阻尼阀，其构造成抑制由活塞的运动产生的工作流体的流动以产生阻尼力。 第二通道具有可变孔口，当活塞杆沿延伸方向移动时具有由弹性构件调节的面积，与可变孔串联安装的压力室，以及被配置为通过以下方式改变压力室的体积的自由活塞 活塞的运动。