公开(公告)号：US08651252B2

公开(公告)日：2014-02-18

申请号：US13338731

申请日：2011-12-28

申请人： Yohei Katayama ,  Takao Nakadate ,  Kenji Noda ,  Mikio Yamashita ,  Fumiyuki Yamaoka

发明人： Yohei Katayama ,  Takao Nakadate ,  Kenji Noda ,  Mikio Yamashita ,  Fumiyuki Yamaoka

IPC分类号： F16F9/34

CPC分类号： F16F9/3484 ,  F16F9/468 ,  F16F9/5126

摘要： A frequency-dependent mechanism provided at the lower end of a piston rod includes a tubular housing displaceable in an inner tube, together with the piston rod as one unit, and further includes a free piston and O-rings. A shutter of a passage area varying mechanism is provided with an axially extending inner hole, orifices, and oil grooves. The opening area between oil holes 3C and the orifices 33B is changed according to the rotational position of the shutter. The opening area between oil holes 3D and 3E and the oil grooves 33C and 33D and the opening area between oil holes 3F and 3G and the oil grooves 33E and 33F are also variably adjusted according to the rotational position of the shutter.

摘要翻译： 设置在活塞杆下端的与频率相关的机构包括可与内筒一起移动的管状壳体，活塞杆作为一个单元，还包括自由活塞和O形环。 通道区域变化机构的闸门设置有轴向延伸的内孔，孔和油槽。 油孔3C和孔33B之间的开口面积根据活门的旋转位置而改变。 油孔3D和3E之间的开口面积以及油槽33C和33D以及油孔3F和3G与油槽33E和33F之间的开口面积也根据挡板的旋转位置可变地调节。

公开(公告)号：US20090242339A1

公开(公告)日：2009-10-01

申请号：US12385130

申请日：2009-03-31

申请人： Takao Nakadate ,  Takashi Nezu ,  Yohei Katayama ,  Shigeo Katayama ,  Hiroyuki Yabe

发明人： Takao Nakadate ,  Takashi Nezu ,  Yohei Katayama ,  Shigeo Katayama ,  Hiroyuki Yabe

IPC分类号： F16F9/46

CPC分类号： F16F9/464

摘要： An object of the present invention is to provide a damping force adjustable hydraulic shock absorber, in which response delay of a pressure control valve and self-excited vibration of a valve body can be prevented. A damping force is generated by controlling an oil flow between an annular oil passage 21 and a reservoir 4 generated by a sliding movement of a piston in a cylinder with use of a back-pressure type main valve 27 and a pressure control valve 28. The damping force is directly generated by the pressure control valve 28, and a valve-opening pressure of the main valve 27 is adjusted by adjusting an inner pressure of a back-pressure chamber 53. In the pressure control valve 28, a valve spring 57 is disposed between a valve body 56 and a plunger 34. A mass of the valve body 56 is sufficiently less than that of a plunger 34, and a spring stiffness of the valve spring 57 is higher than that of a plunger spring 36. As a result, it is possible to improve the responsiveness of the valve body 56 to prevent response delay in a damping force control. In addition, since the natural frequency of the valve body 56 is high, it is possible to prevent self-excited vibration of the valve body 56.

摘要翻译： 本发明的目的是提供一种阻尼力可调的液压减震器，其中可以防止压力控制阀的响应延迟和阀体的自激振动。 通过使用背压式主阀27和压力控制阀28通过使气缸中的活塞滑动运动而产生的环形油路21和储存器4之间的油流控制来产生阻尼力。 由压力控制阀28直接产生阻尼力，通过调整背压室53的内压来调整主阀27的开阀压力。在压力控制阀28中，阀弹簧57为 设置在阀体56和柱塞34之间。阀体56的质量足够小于柱塞34的质量，并且阀弹簧57的弹簧刚度高于柱塞弹簧36的弹簧刚度。结果 ，可以提高阀体56的响应性，以防止阻尼力控制中的响应延迟。 此外，由于阀体56的固有频率高，因此能够防止阀体56的自激振动。

公开(公告)号：US08794400B2

公开(公告)日：2014-08-05

申请号：US12385130

申请日：2009-03-31

申请人： Takao Nakadate ,  Takashi Nezu ,  Yohei Katayama ,  Shigeo Katayama ,  Hiroyuki Yabe

发明人： Takao Nakadate ,  Takashi Nezu ,  Yohei Katayama ,  Shigeo Katayama ,  Hiroyuki Yabe

IPC分类号： F16F9/34

CPC分类号： F16F9/464

摘要： A damping force adjustable hydraulic shock absorber, in which response delay of a pressure control valve and self-excited vibration of a valve body can be prevented. A damping force is generated by controlling an oil flow between an annular oil passage (21) and a reservoir (4) generated by sliding movement of a piston in a cylinder with use of a back-pressure type main valve (27) and a pressure control valve (28). The damping force is directly generated by the pressure control valve, and valve-opening pressure of the main valve is adjusted by adjusting an inner pressure of a back-pressure chamber. In the pressure control valve, a valve spring is disposed between a valve body and a plunger. A mass of the valve body is sufficiently less than that of the plunger, and a spring stiffness of the valve spring is higher than that of a plunger spring.

摘要翻译： 阻尼力可调液压减震器，其中可以防止压力控制阀的响应延迟和阀体的自激振动。 通过控制通过使用背压型主阀（27）的气缸中的活塞的滑动运动而产生的环形油路（21）和储存器（4）之间的油流，产生阻尼力， 控制阀（28）。 阻尼力由压力控制阀直接产生，通过调整背压室的内压来调节主阀的开阀压力。 在压力控制阀中，阀弹簧设置在阀体和柱塞之间。 阀体的质量足够小于柱塞的质量，并且阀弹簧的弹簧刚度高于柱塞弹簧的弹簧刚度。

公开(公告)号：US20080257668A1

公开(公告)日：2008-10-23

申请号：US12078150

申请日：2008-03-27

申请人： Hiroyuki Yamaguchi ,  Yohei Katayama ,  Hiroyuki Hayama ,  Takashi Nezu

发明人： Hiroyuki Yamaguchi ,  Yohei Katayama ,  Hiroyuki Hayama ,  Takashi Nezu

IPC分类号： F16F9/48

CPC分类号： F16F9/465 ,  F16F9/3485

摘要： An object of the present invention is to generate a stable damping force and enhance durability of a main valve in a hydraulic shock absorber in which valve opening of the main valve is controlled by an inner pressure of a backpressure chamber. A first piston 3 and a second piston 4 coupled to a piston rod 10 are fitted in a cylinder 2 such that a piston chamber 2C is defined between the first and second pistons 3, 4. An extension-side main valve 18 and a compression-side main valve 23 are provided in the piston chamber 2C. Valve opening of the main valves is controlled by an extension-side backpressure chamber 19 and a compression-side backpressure chamber 24. A compression-side check valve 13 and an extension-side check valve 16 are provided at the first piston 3 and the second piston 4. During an extension stroke of the piston rod 10, the compression-side check valve 13 is closed, whereby action of a pressure of a cylinder upper chamber 2A on the compression-side main valve 23 is prevented. During a compression stroke of the piston rod 10, the extension-side check valve 16 is closed, whereby action of a pressure of a cylinder lower chamber 2B on the extension-side main valve 18 is prevented. Accordingly, it is possible to generate a stable damping force, and enhance durability of the extension-side main valve 18 and the compression-side main valve 23.

摘要翻译： 本发明的一个目的是产生稳定的阻尼力并提高液压缓冲器中的主阀的耐久性，其中主阀的阀开度由背压室的内压控制。 联接到活塞杆10的第一活塞3和第二活塞4装配在气缸2中，使得在第一和第二活塞3,4之间限定活塞室2C。 延伸侧主阀18和压缩侧主阀23设置在活塞室2C中。主阀的阀开口由延伸侧背压室19和压缩侧背压室24控制。 在第一活塞3和第二活塞4上设有压缩侧止回阀13和延伸侧单向阀16。 在活塞杆10的延伸行程中，压缩侧止回阀13关闭，从而防止压缩侧主阀23上的气缸上腔室2A的压力的作用。 在活塞杆10的压缩行程期间，延伸侧单向阀16关闭，从而防止了延伸侧主阀18上的气缸下腔室2B的压力的作用。 因此，可以产生稳定的阻尼力，并且提高延伸侧主阀18和压缩侧主阀23的耐久性。

公开(公告)号：US06817454B2

公开(公告)日：2004-11-16

申请号：US10316040

申请日：2002-12-11

申请人： Takashi Nezu ,  Yohei Katayama

发明人： Takashi Nezu ,  Yohei Katayama

IPC分类号： F16F946

CPC分类号： B60G17/08 ,  B60G2202/24 ,  B60G2500/102 ,  B60G2500/114 ,  F16F9/3405 ,  F16F9/348 ,  F16F9/465 ,  F16F9/466 ,  F16F9/5126

摘要： A piston connected to a piston rod is slidably fitted in a cylinder having a hydraulic fluid sealed therein. First and second poppet valves having different valve opening characteristics are provided in first and second extension main passages, respectively. A pilot control valve is provided in a sub-passage. The control pressure of the pilot control valve is adjusted by a proportional solenoid, thereby controlling damping force. At the same time, the pressure at the upstream side of the pilot control valve is introduced into back-pressure chambers to adjust the valve opening pressures of the first and second poppet valves. Because the first and second poppet valves are sequentially opened or closed, damping force can be controlled stepwisely, and ideal damping force characteristics can be obtained.

摘要翻译： 连接到活塞杆的活塞可滑动地装配在其中密封有液压流体的气缸中。 具有不同阀开启特性的第一和第二提升阀分别设置在第一和第二延伸主通道中。 在副通路中设有先导控制阀。 先导控制阀的控制压力由比例螺线管调节，从而控制阻尼力。 同时，先导控制阀的上游侧的压力被引入到背压室中，以调节第一和第二提升阀的开启压力。 由于第一和第二提升阀顺序地打开或关闭，所以可以逐步地控制阻尼力，并且可以获得理想的阻尼力特性。

公开(公告)号：US20120247889A1

公开(公告)日：2012-10-04

申请号：US13423637

申请日：2012-03-19

申请人： Hiroyuki Yabe ,  Yohei Katayama ,  Takashi Nezu

发明人： Hiroyuki Yabe ,  Yohei Katayama ,  Takashi Nezu

IPC分类号： F16F9/508 ,  F16F9/06

CPC分类号： F16F9/465

摘要： During either of the extension and compression strokes, hydraulic liquid flows from a cylinder upper chamber into a reservoir through an annular passage and a damping force control mechanism, and a damping force is generated by the damping force control mechanism. The check valve is provided with a sub-check valve in parallel thereto, which opens in a very low piston speed region to allow the hydraulic liquid to flow through an orifice passage. These check valves are opened successively as the piston speed increases, thereby generating a sufficiently small damping force in the very low piston speed region during the compression stroke of the piston rod, and obtaining a moderate damping force when the piston speed increases.

摘要翻译： 在任一延伸和压缩冲程期间，液压液体通过环形通道和阻尼力控制机构从气缸上部腔室流入储存器，并且衰减力由阻尼力控制机构产生。 止回阀具有与其平行的副止回阀，其在非常低的活塞速度区域中打开，以允许液压液体流过孔口通道。 随着活塞速度的增加，这些止回阀依次打开，从而在活塞杆的压缩冲程期间在非常低的活塞速度区域产生足够小的阻尼力，并且当活塞速度增加时获得适度的阻尼力。

公开(公告)号：US06981577B2

公开(公告)日：2006-01-03

申请号：US10786115

申请日：2004-02-26

申请人： Yohei Katayama ,  Hiroyuki Matsumoto ,  Kenichi Nakamura ,  Masaaki Uchiyama

发明人： Yohei Katayama ,  Hiroyuki Matsumoto ,  Kenichi Nakamura ,  Masaaki Uchiyama

IPC分类号： F16F9/53

CPC分类号： F16F9/537 ,  F16F9/465

摘要： In a controllable damping force shock absorber, a piston member connected to a piston rod is disposed in a cylinder in which a magnetic fluid is contained. A disc valve having an extension-stroke pressure-receiving portion and a compression-stroke pressure-receiving portion is provided in the piston member, and a pilot chamber is formed on a rear side of the disc valve. A coil is provided adjacent to passages communicated with the pilot chamber. By energizing the coil, a magnetic field that acts on the magnetic fluid flowing through the passages is generated, changing the viscosity of the magnetic fluid to control a damping force. A valve-opening pressure of the disc valve is controlled according to the pressure in the pilot chamber, such a way that the magnetic fluid exposed to the magnetic field can flow at a low flow rate, thus achieving low power consumption.

摘要翻译： 在可控阻尼力减震器中，连接到活塞杆的活塞构件设置在容纳磁性流体的气缸中。 具有延伸行程压力接收部分和压缩行程压力接收部分的盘阀设置在活塞部件中，并且先导室形成在盘阀的后侧。 在与导向室连通的通道附近设置线圈。 通过激励线圈，产生作用在流过通道的磁性流体上的磁场，改变磁性流体的粘度以控制阻尼力。 根据导向室中的压力来控制盘阀的开阀压力，使得暴露于磁场的磁性流体可以以低流量流动，从而实现低功率消耗。

公开(公告)号：US08800729B2

公开(公告)日：2014-08-12

申请号：US13423637

申请日：2012-03-19

申请人： Hiroyuki Yabe ,  Yohei Katayama ,  Takashi Nezu

发明人： Hiroyuki Yabe ,  Yohei Katayama ,  Takashi Nezu

IPC分类号： F16F9/34

CPC分类号： F16F9/465

摘要： During either of the extension and compression strokes, hydraulic liquid flows from a cylinder upper chamber into a reservoir through an annular passage and a damping force control mechanism, and a damping force is generated by the damping force control mechanism. The check valve is provided with a sub-check valve in parallel thereto, which opens in a very low piston speed region to allow the hydraulic liquid to flow through an orifice passage. These check valves are opened successively as the piston speed increases, thereby generating a sufficiently small damping force in the very low piston speed region during the compression stroke of the piston rod, and obtaining a moderate damping force when the piston speed increases.

摘要翻译： 在任一延伸和压缩冲程期间，液压液体通过环形通道和阻尼力控制机构从气缸上部腔室流入储存器，并且衰减力由阻尼力控制机构产生。 止回阀具有与其平行的副止回阀，其在非常低的活塞速度区域中打开，以允许液压液体流过孔口通道。 随着活塞速度的增加，这些止回阀依次打开，从而在活塞杆的压缩行程期间在非常低的活塞速度区域产生足够小的阻尼力，并且当活塞速度增加时获得适度的阻尼力。

公开(公告)号：US08798859B2

公开(公告)日：2014-08-05

申请号：US13996120

申请日：2012-01-31

申请人： Toru Uchino ,  Ryusuke Hirao ,  Yohei Katayama ,  Hiroyuki Yabe ,  Hiroki Ohara

发明人： Toru Uchino ,  Ryusuke Hirao ,  Yohei Katayama ,  Hiroyuki Yabe ,  Hiroki Ohara

IPC分类号： G06F19/00

CPC分类号： B60G17/017 ,  B60G17/018 ,  B60G17/06 ,  B60G17/08 ,  B60G2500/10 ,  F16F9/465

摘要： [Object]The present invention provides a suspension control apparatus that allows miniaturization of a solenoid valve.[Solution]When a controller is started up by a power source controller (a power source unit), the controller switches a control current from 0 ampere to a maximum current value I6 at the same time as the startup. After that, the control shifts to normal control. As a result, even if a hysteresis of a damping force characteristic is large relative to the control current, it is possible to promptly move a solenoid valve to a position to be used in the normal control.

摘要翻译： 本发明提供一种能够使电磁阀小型化的悬架控制装置。 [解决方案]当控制器由电源控制器（电源单元）启动时，控制器在启动的同时将控制电流从0安培切换到最大电流值I6。 之后，控制转移到正常的控制。 结果，即使阻尼力特性的滞后相对于控制电流大，也可以迅速地将电磁阀移动到正常控制中使用的位置。

公开(公告)号：US20130275003A1

公开(公告)日：2013-10-17

申请号：US13996120

申请日：2012-01-31

申请人： Toru Uchino ,  Ryusuke Hirao ,  Yohei Katayama ,  Hiroyuki Yabe ,  Hiroki Ohara

发明人： Toru Uchino ,  Ryusuke Hirao ,  Yohei Katayama ,  Hiroyuki Yabe ,  Hiroki Ohara

IPC分类号： B60G17/06

CPC分类号： B60G17/017 ,  B60G17/018 ,  B60G17/06 ,  B60G17/08 ,  B60G2500/10 ,  F16F9/465

摘要： [Object]The present invention provides a suspension control apparatus that allows miniaturization of a solenoid valve.[Solution]When a controller is started up by a power source controller (a power source unit), the controller switches a control current from 0 ampere to a maximum current value I6 at the same time as the startup. After that, the control shifts to normal control. As a result, even if a hysteresis of a damping force characteristic is large relative to the control current, it is possible to promptly move a solenoid valve to a position to be used in the normal control.

摘要翻译： 本发明提供一种能够使电磁阀小型化的悬架控制装置。 [解决方案]当控制器由电源控制器（电源单元）启动时，控制器在启动的同时将控制电流从0安培切换到最大电流值I6。 之后，控制转移到正常的控制。 结果，即使阻尼力特性的滞后相对于控制电流大，也可以迅速地将电磁阀移动到正常控制中使用的位置。