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1. 发明授权

US08376099B2 Volume compensation accumulator apparatus and suspension system using the same 失效
标题翻译：蓄电池蓄电装置和使用其的悬挂系统
公开(公告)号：US08376099B2
公开(公告)日：2013-02-19
申请号：US12730670
申请日：2010-03-24
申请人： Shunsuke Mori , Takao Nakadate , Kenichi Nakamura
发明人： Shunsuke Mori , Takao Nakadate , Kenichi Nakamura
IPC分类号： F16F9/46
CPC分类号： B60G11/30 , B60G17/0408 , B60G2202/154 , B60G2206/422 , F15B1/021
摘要： A volume compensation accumulator apparatus connected to a conduit connecting hydraulic cylinders in a suspension system. The volume compensation accumulator apparatus includes an arrangement of the two orifice plates in series in a spaced-apart relation, which eliminates the necessity of reducing the diameters of the orifices while providing the same orifice characteristic as that of an orifice having a smaller diameter, thereby making the boring process of the orifice easy, and reducing clogging of the orifices with foreign objects.
摘要翻译：一种音量补偿蓄电装置，连接到连接悬架系统中的液压缸的导管。音量补偿蓄电装置包括两个间隔开的串联的孔板的布置，这消除了在提供与具有较小直径的孔口相同的孔口特性的同时减小孔口的直径的必要性，由此使孔的镗孔过程变得容易，并减少孔与异物的堵塞。

2. 发明申请

US20100300821A1 VOLUME COMPENSATION ACCUMULATOR APPARATUS AND SUSPENSION SYSTEM USING THE SAME 失效
标题翻译：体积补偿累加器装置和使用它的悬挂系统
公开(公告)号：US20100300821A1
公开(公告)日：2010-12-02
申请号：US12730670
申请日：2010-03-24
申请人： Shunsuke Mori , Takao Nakadate , Kenichi Nakamura
发明人： Shunsuke Mori , Takao Nakadate , Kenichi Nakamura
IPC分类号： F16F9/14 , B60G17/04
CPC分类号： B60G11/30 , B60G17/0408 , B60G2202/154 , B60G2206/422 , F15B1/021
摘要： The present invention enables easy formation of an extremely small orifice in a volume compensation accumulator apparatus connected to a conduit connecting hydraulic cylinders in a suspension system. The volume compensation accumulator apparatus comprises an arrangement of the two orifice plates in series in a spaced-apart relation, which eliminates the necessity of reducing the diameters of the orifices while providing the same orifice characteristic as that of an orifice having a smaller diameter, thereby making the boring process of the orifice easy, and reducing clogging of the orifices with foreign objects.
摘要翻译：本发明能够容易地在连接到连接悬挂系统中的液压缸的导管的体积补偿蓄能器中形成极小的孔口。音量补偿蓄电装置包括两个间隔开的串联的孔板的布置，这消除了在提供与具有较小直径的孔口相同的孔口特性的同时减小孔口的直径的必要性，由此使孔的镗孔过程变得容易，并减少孔与异物的堵塞。

3. 发明授权

US08794400B2 Damping force adjustable shock absorber 有权
标题翻译：阻尼力可调减震器
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。

4. 发明授权

US06302248B1 Damping force control type hydraulic shock absorber 有权
标题翻译：阻尼力控制式液压减震器
公开(公告)号：US06302248B1
公开(公告)日：2001-10-16
申请号：US09470985
申请日：1999-12-23
申请人： Takao Nakadate
发明人： Takao Nakadate
IPC分类号： F16F946
CPC分类号： F16F9/466
摘要： The flow of a hydraulic fluid between connecting ports caused by sliding movement of a piston in a cylinder is controlled by a fixed orifice and the flow path area determined by ports that is varied by a spool, thereby directly controlling orifice characteristics. At the same time, the pressure in a pilot chamber is changed by the pressure loss between the ports to change the valve opening pressure of a main valve, thereby controlling valve characteristics. An orifice passage is provided in parallel to the ports. Thus, when the flow path area determined by the ports is restricted, variations in the flow path area attributable to machining accuracy or the like can be absorbed by the flow path area of the orifice passage provided in parallel to the ports. Therefore, stable “hard” damping force characteristics can be obtained.
摘要翻译：由活塞在气缸中的滑动运动引起的连接端口之间的液压流体的流动由固定孔和由通过阀芯改变的端口确定的流路面积进行控制，从而直接控制孔特性。同时，先导室中的压力由于端口之间的压力损失而改变，以改变主阀的开阀压力，从而控制阀的特性。孔口平行于端口设置。因此，当由端口确定的流路面积被限制时，归因于加工精度等的流路面积的变化可以被平行于端口设置的孔口通道的流路面积吸收。因此，可以获得稳定的“硬”阻尼力特性。

5. 发明授权

US5404973A Damping force control type hydraulic shock absorber 失效
标题翻译：阻尼力控制式液压减震器
公开(公告)号：US5404973A
公开(公告)日：1995-04-11
申请号：US206627
申请日：1994-03-07
申请人： Tetsuo Katoh , Takao Nakadate
发明人： Tetsuo Katoh , Takao Nakadate
IPC分类号： F16F9/44 , F16F9/46 , F16F9/34
CPC分类号： F16F9/468
摘要： In a damping force control type hydraulic shock absorber according to the invention, an extension-side bypass passage extends through an extension-side chamber (17b) in a shutter (17). A check valve (28) allows the flow of hydraulic fluid only during the extension stroke. A contraction-side bypass passage extends through a contraction-side chamber (17a) in the same shutter (17). Disk valves (30) allow the flow of hydraulic fluid only during the contraction stroke. By rotating the shutter (17), alignment between an extension-side inlet port (31) and an extension-side inlet opening (34) changes and alignment between a contraction-side inlet port (32) and a contraction-side inlet opening (33) also changes, thereby controlling the passage area of each of the extension- and contraction-side bypass passages, and thus enabling different damping force characteristics to be simultaneously selected for the extension and contraction sides. Since the extension- and contraction-side chambers (17a, 17b) are independent of each other, no turbulent flow will occur in the shutter (17) when the direction of stroke of a piston rod (8) changes, and hence no noise will be generated.
摘要翻译：在根据本发明的阻尼力控制型液压减震器中，延伸侧旁通通道延伸穿过闸门（17）中的延伸侧室（17b）。止回阀（28）仅允许在延伸行程期间流动液压流体。收缩侧旁路通道延伸穿过同一挡板（17）中的收缩侧室（17a）。盘阀（30）只允许液压流体在收缩冲程期间流动。通过旋转闸门17，延伸侧入口端口31和延伸侧入口开口34之间的对准在收缩侧入口端口32和收缩侧入口开口 33）也发生变化，从而控制各收缩侧旁路通路的通路面积，能够同时选择延伸侧和收缩侧的阻尼力特性。由于延伸和收缩侧室（17a，17b）彼此独立，当活塞杆（8）的行程方向改变时，挡板（17）中不会发生湍流，因此不会产生噪音生成。

6. 发明申请

US20120160624A1 SHOCK ABSORBER 有权
标题翻译：减震器
公开(公告)号：US20120160624A1
公开(公告)日：2012-06-28
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。

7. 发明授权

US06782980B2 Controllable damping force hydraulic shock absorber 有权
标题翻译：可控阻尼力液压减震器
公开(公告)号：US06782980B2
公开(公告)日：2004-08-31
申请号：US10305342
申请日：2002-11-27
申请人： Takao Nakadate
发明人： Takao Nakadate
IPC分类号： F16F900
CPC分类号： F16F9/3485 , F16F9/3214 , F16F9/461 , F16F9/466
摘要： A piston having a piston rod connected thereto is slidably fitted in a cylinder in which a hydraulic fluid is sealably contained. Extension-stroke and compression-stroke pilot type damping force control mechanisms are provided in the piston. A pilot control valve of the extension-stroke pilot type damping force control mechanism is formed by a pressure control valve having a valve seat, a valve body and a pressure-receiving portion. A pilot control valve of the compression-stroke pilot type damping force control mechanism is formed by a flow rate control valve having a spool. A slider having the valve body of the pressure control valve and the spool of the flow rate control valve is operated by a proportional solenoid, to thereby control a damping force for an extension stroke and a damping force for a compression stroke.
摘要翻译：具有与其连接的活塞杆的活塞可滑动地装配在液压缸中，液压流体可密封地容纳在该气缸中。在活塞中设置有延伸行程和压缩行程先导式阻尼力控制机构。延伸行程先导式阻尼力控制机构的先导控制阀由具有阀座，阀体和受压部的压力控制阀构成。压缩行程先导式阻尼力控制机构的先导控制阀由具有阀芯的流量控制阀形成。具有压力控制阀的阀体和流量控制阀的阀芯的滑块由比例螺线管操作，从而控制用于延伸行程的阻尼力和用于压缩冲程的阻尼力。

8. 发明授权

US06371262B1 Damping force control type hydraulic shock absorber 有权
标题翻译：阻尼力控制式液压减震器
公开(公告)号：US06371262B1
公开(公告)日：2002-04-16
申请号：US09560561
申请日：2000-04-28
申请人： Tetsuo Katou , Takashi Nezu , Takao Nakadate
发明人： Tetsuo Katou , Takashi Nezu , Takao Nakadate
IPC分类号： F16F934
CPC分类号： F16F9/465
摘要： The flow of a hydraulic fluid, which occurs under a sliding movement of a piston in a cylinder, is directly controlled by virtue of an extension-stroke pressure control valve and a compression-stroke pressure control valve. At the same time, the pressure in a back pressure chamber is varied, to thereby adjust the valve opening pressure for a main disk valve. This enables control of a damping force over a wide range. In each of the extension-stroke and compression-stroke pressure control valves, a thrust is generated in a slider due to a difference in pressure-receiving areas between a stepped portion of the slider and a sub disk valve in a valve chamber. The valve opening pressure is controlled, according to the balance between the thrust of the slider and a thrust of a proportional solenoid. By reducing the difference in the pressure-receiving areas in the valve chamber, the load applied to the proportional solenoid can be reduced.
摘要翻译：在气缸内的活塞的滑动运动下产生的液压流体的流动通过延伸冲程压力控制阀和压缩冲程压力控制阀直接控制。同时，背压室中的压力变化，从而调节主盘阀的开阀压力。这使得能够在宽范围内控制阻尼力。在每个延伸行程和压缩行程压力控制阀中，由于滑阀的阶梯部分和阀室中的副盘阀之间的压力接收区域的差异，在滑块中产生推力。根据滑块的推力和比例螺线管的推力之间的平衡来控制开阀压力。通过减小阀室中的受压面积的差异，可以减小施加在比例螺线管上的负荷。

9. 发明授权

US5901820A Hydraulic shock absorber 失效
标题翻译：液压减震器
公开(公告)号：US5901820A
公开(公告)日：1999-05-11
申请号：US785947
申请日：1997-01-22
申请人： Akira Kashiwagi , Takashi Nezu , Takao Nakadate
发明人： Akira Kashiwagi , Takashi Nezu , Takao Nakadate
IPC分类号： F16F9/40 , B60G13/08 , F16F9/46 , B60G17/08 , F16F9/50
CPC分类号： B60G13/08 , F16F9/46
摘要： A piston is slidably fitted in a cylinder for dividing the interior of the cylinder into upper and lower cylinder chambers. The upper cylinder chamber communicates with the lower cylinder chamber through a check valve. The lower cylinder chamber communicates with a reservoir through a check valve. The upper cylinder chamber communicates with the lower cylinder chamber through an extending side damping valve. The lower cylinder chamber communicates with the reservoir through a contracting side damping valve. A piston rod is connected to the piston. When the piston rod is in an extending stroke, a damping force is generated by the extending side damping valve. When the piston rod is in a compressing stroke, a damping force is generated by the contracting side damping valve. The reservoir includes a connecting hole having an opening. A baffle plate is provided within the reservoir and above the opening of the connecting hole. Arrangement of the baffle plate above the opening of the connecting hole defines an entrance portion through which hydraulic fluid flows from the connecting hole to the reservoir. The cross sectional flow area of the entrance portion is gradually expanded, thereby decreasing the flow velocity of the hydraulic fluid to restrain generation of eddies to prevent cavitation and aeration.
摘要翻译：活塞可滑动地装配在气缸中，用于将气缸的内部分成上下缸室。上气缸室通过止回阀与下气缸室连通。下气缸室通过止回阀与贮存器连通。上气缸室通过延伸侧阻尼阀与下气缸室连通。下气缸室通过收缩侧阻尼阀与储存器连通。活塞杆连接到活塞上。当活塞杆处于延伸行程时，由延伸侧阻尼阀产生阻尼力。当活塞杆处于压缩冲程时，由收缩侧阻尼阀产生阻尼力。储存器包括具有开口的连接孔。挡板设置在储存器内部和连接孔的开口之上。挡板在连接孔的开口上方的布置限定了液压流体从连接孔流到储存器的入口部分。入口部分的横截面积面积逐渐扩大，从而降低液压流体的流速，从而抑制涡流产生，防止气蚀和通气。

10. 发明授权

US07997588B2 Cylinder apparatus and stabilizer apparatus using the same 有权
标题翻译：气缸装置及使用其的稳定装置
公开(公告)号：US07997588B2
公开(公告)日：2011-08-16
申请号：US12382641
申请日：2009-03-20
申请人： Takashi Ohnuma , Takao Nakadate
发明人： Takashi Ohnuma , Takao Nakadate
IPC分类号： B60G17/005 , B60G21/05 , B60G17/015 , F16F9/32
CPC分类号： B60G21/0556 , B60G2200/14 , B60G2202/135 , B60G2204/1224 , B60G2204/46 , B60G2204/62 , B60G2206/41 , B60G2400/104 , B60G2400/40 , B60G2500/11 , B60G2600/26 , B60G2800/012 , B60G2800/9122 , F16F9/46
摘要： There is provided with a cylinder apparatus comprising: a cylinder; a piston; a piston rod, one end of which is connected to the piston and the other end of which is extended outside; an external cylinder provided at an outer periphery of the cylinder so as to form a reservoir in which to seal the hydraulic liquid and gas therebetween; a base valve dividing the second chamber and the reservoir; a first check valve provided with the piston so as to allow flow of the hydraulic liquid only from the second chamber side to the first chamber side; a second check valve provided with the base valve so as to allow flow of the hydraulic liquid only from the reservoir side to the second chamber side; a flow passage connecting the first chamber with the reservoir; and an opening and closing valve opening and closing the flow passage.
摘要翻译：设置有气缸装置，包括：气缸; 活塞一活塞杆，其一端连接到活塞，另一端延伸到外面; 设置在所述气缸的外周的外筒，以形成用于在其间密封所述液压液体和气体的储存器; 分隔第二室和储存器的基阀; 第一止回阀，设置有活塞，以便仅使液压液体从第二室侧流动到第一室侧; 第二止回阀，设置有基阀，以允许液压液体仅从储存器侧流动到第二室侧; 连接所述第一室与所述储存器的流路; 以及打开和关闭所述流动通道的打开和关闭阀。

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