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公开(公告)号：US20130020158A1
公开(公告)日：2013-01-24
申请号：US13554434
申请日：2012-07-20
申请人： Wan Sang PARK
发明人： Wan Sang PARK
CPC分类号： F16F9/5126 , F16F9/34 , F16F9/3405
摘要： A valve structure includes a piston valve assembly, and a frequency unit including a hollow housing, a free piston and an auxiliary valve assembly. The piston valve assembly, installed at one end of a piston rod, operates with the inside of a cylinder being divided into upper and lower chambers, and generates a damping force varying according to a moving speed. The frequency unit moves together with the piston valve assembly and generates a damping force varying according to a frequency. The housing is mounted at a lower end of the piston rod such that the housing is disposed under the piston valve assembly. An inner space of the housing is partitioned into upper and lower spaces by the free piston. The free piston is disposed to be vertically movable within the housing. The auxiliary valve assembly is mounted at a lower end of the housing.
摘要翻译： 阀结构包括活塞阀组件和包括中空壳体，自由活塞和辅助阀组件的频率单元。 安装在活塞杆的一端的活塞阀组件在气缸的内部被分成上腔室和下腔室的情况下操作，并且产生根据移动速度而变化的阻尼力。 频率单元与活塞阀组件一起移动，并产生根据频率而变化的阻尼力。 壳体安装在活塞杆的下端，使得壳体设置在活塞阀组件的下方。 壳体的内部空间由自由活塞分隔成上部和下部空间。 自由活塞设置成可在壳体内垂直移动。 辅助阀组件安装在壳体的下端。
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公开(公告)号：US20120312648A1
公开(公告)日：2012-12-13
申请号：US13492005
申请日：2012-06-08
申请人： Chun Sung Yu , Jun Sik Shin
发明人： Chun Sung Yu , Jun Sik Shin
CPC分类号： F16F9/5126
摘要： Disclosed herein is a valve structure of a shock absorber which forms flow channels in two directions of working fluid passing through the valve structure so as to slow change of damping force when the moving velocity of a piston is changed between a low velocity and a middle and high velocity and forms one of the two flow channels as a variable flow channel to improve ride comfort of a vehicle. The valve structure includes a piston valve assembly installed at the end of the piston rod and operated to generate damping force varied according to moving velocity of a working fluid, and a variable valve assembly moving together with the piston valve assembly to vary damping force to slow change of a damping force curve when the flow velocity of the working fluid is changed between a low velocity and a middle and high velocity.
摘要翻译： 本文公开了一种减震器的阀结构，其在通过阀结构的工作流体的两个方向上形成流动通道，以便当活塞的运动速度在低速和中间之间变化时减缓阻尼力的变化，以及 高速度并且形成两个流动通道中的一个作为可变流动通道，以改善车辆的乘坐舒适性。 阀结构包括安装在活塞杆端部的活塞阀组件，用于产生根据工作流体的移动速度而变化的阻尼力;以及可变阀组件，与活塞阀组件一起移动以改变阻尼力以减慢 当工作流体的流速在低速和中高速之间变化时，阻尼力曲线的变化。
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公开(公告)号：US20110297497A1
公开(公告)日：2011-12-08
申请号：US13152941
申请日：2011-06-03
申请人： Hong Sig KIM
发明人： Hong Sig KIM
CPC分类号： F16F9/3485
摘要： Disclosed herein is an impact sensitive damper damping vibration transferred from a road surface to a vehicle, and more particularly, to an impact sensitive damper in which handling stability may be achieved in a low speed operating section of the damper and improvement of ride comfort may be achieved in a high speed operating section thereof. According to an exemplary embodiment of the present invention, there is provided an impact sensitive damper improving ride comfort by decreasing damping force when impact is applied to a vehicle, the impact sensitive damper including: a body valve body having compression channels and expansion channels formed therein; a fastener vertically penetrating through the body valve body; a dish shaped spring interposed between an upper portion of the body valve body and the fastener; and a disk shaped spring interposed between a lower portion of the body valve body and the fastener, wherein at the time of compression stroke when the impact is applied to the damper, the fastener is relatively displaced with respect to the body valve body due to elastic deformation of the dish shaped spring, such that the disk shaped spring and the lower portion of the body valve body are spaced apart from each other, thereby increasing a channel area of operating fluid.
摘要翻译： 本文公开了一种从路面传递到车辆的冲击敏感阻尼器阻尼振动，更具体地说，涉及一种在阻尼器的低速操作部分中可以实现操纵稳定性并提高乘坐舒适性的冲击敏感阻尼器 在其高速操作部分中实现。 根据本发明的示例性实施例，提供了一种冲击敏感阻尼器，通过在冲击施加到车辆时减小阻尼力来改善乘坐舒适性，该冲击敏感阻尼器包括：身体阀体，其具有压缩通道和形成在其中的膨胀通道 ; 垂直穿过主体阀体的紧固件; 设置在本体阀体的上部与紧固件之间的碟形弹簧; 以及插入在本体阀体的下部与紧固件之间的盘形弹簧，其中当冲击施加到阻尼器时的压缩行程时，紧固件由于弹性而相对于阀体阀体相对移位 碟形弹簧的变形，使得盘形弹簧和主体阀体的下部彼此间隔开，从而增加了工作流体的通道面积。
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公开(公告)号：US20090127041A1
公开(公告)日：2009-05-21
申请号：US12291440
申请日：2008-11-10
IPC分类号： F16F9/508
CPC分类号： F16F9/5126
摘要： Vibration damper with amplitude-selective damping force that includes a piston rod, which is guided with freedom of axial movement in a damping medium-filled cylinder. The piston rod carries a piston arrangement, which divides the cylinder into a working space on the side of the piston with the piston rod and a working space on the side of the piston opposite the piston rod, where a flow connection, which, as a function of the movement of the piston rod, determines a damping force by means of a switching ring, which moves axially between two stop surfaces, in conjunction with at least one axially movable valve ring in a switching ring groove. The switching ring cooperates with one stop surface to form the boundaries of an annular space adjacent to the working space on the piston rod side and with another stop surface to form the boundary of an annular space adjacent to the working space on the side of the piston opposite the piston rod. The axial extension of the switching ring groove for the axially movable valve ring is large enough to guarantee that the damping medium can flow around the valve ring over a relevant stroke range of the piston rod.
摘要翻译： 具有振幅选择阻尼力的振动阻尼器包括一个活塞杆，该活塞杆在阻尼介质填充气缸中被轴向自由移动。 活塞杆带有活塞装置，该活塞装置将活塞与活塞杆分隔成活塞侧的工作空间，活塞侧与活塞杆相对的工作空间分开，流动连接 活塞杆运动的功能决定了通过在切换环槽中的至少一个可轴向移动的阀环的两个止动表面之间轴向移动的开关环来确定阻尼力。 开关环与一个止动表面配合以形成与活塞杆侧上的工作空间相邻的环形空间的边界和另一个止动表面，以形成与活塞侧面上的工作空间相邻的环形空间的边界 与活塞杆相对。 用于可轴向移动的阀环的开关环槽的轴向延伸足够大，以确保阻尼介质可以在活塞杆的相关行程范围内围绕阀环流动。
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公开(公告)号：US5423402A
公开(公告)日：1995-06-13
申请号：US113888
申请日：1993-08-30
申请人： Cornelis de Kock
发明人： Cornelis de Kock
摘要： A twin-pipe shock absorber comprises a working cylinder (1), a piston (4) which is movable in the cylinder and has a passage and upstream valve (13, 14, 15), an external pipe (2) which is fitted around the working cylinder having an oil tank (3) formed therebetween, a disc (7) having a passage (16) and an upstream valve (17) positioned near the passage to shut off the working cylinder, a central pipe (10) extending through the piston (4) having its bottom end projecting through the disc (7) so as to produce a shock absorber in which the shock absorption can be adapted very rapidly to the frequency of movement of the upsprung wheel guide part, the damper valve being disposed at the bottom end of the central pipe (10), and a regulation device to regulate the damping exerted by the damper valve depending at least on the frequency at which the working cylinder vibrates.
摘要翻译： PCT No.PCT / NL89 / 00016 Sec。 371 1990年9月25日第 102（e）1990年9月25日PCT PCT 1989年4月3日提交PCT。 WO89 / 09891 PCT出版物 一种双管减震器，包括工作缸（1），活塞（4），其可在气缸中移动并具有通道和上游阀（13,14,15），外管 （2），其安装在具有形成在其间的油箱（3）的工作缸周围;具有通道（16）的盘（7）和位于通道附近的上游阀（17），以切断工作缸; 延伸穿过活塞（4）的中心管（10），其底端突出通过盘（7），以便产生减震器，其中减震能够非常快地适应于上棘轮导向件的运动频率 减震阀设置在中心管（10）的底端，调节装置至少根据工作缸振动的频率来调节由阻尼阀施加的阻尼。
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公开(公告)号：US5386892A
公开(公告)日：1995-02-07
申请号：US128764
申请日：1993-09-17
申请人： Masahiro Ashiba
发明人： Masahiro Ashiba
摘要： In the disclosed hydraulic shock absorber, damping force characteristics are adjusted in accordance with the frequency of stroke, and the damping force is made small at the time when the directions of stroke are changed from one to the other. Cylinder upper and lower chambers are communicated with each other through main hydraulic fluid passage and first and second bypass passages. During the extension stroke, the second bypass passage is cut off by a check valve, and a shutter in the first bypass passage is slid in accordance with the frequency of stroke by the fluid flowing through an orifice passage to regulate the passage area of the first bypass passage. During the contraction stroke, the first bypass passage is cut off by a check valve, and a shutter in the second passage is slid in accordance with the frequency of stroke by the fluid flowing through an orifice passage to regulate the passage area of the second bypass passage. During either of the extension and contraction strokes, the shutter for the other stroke returns to the original position by the action of the hydraulic pressure in the cylinder.
摘要翻译： 在所公开的液压减震器中，根据行程的频率来调节阻尼力特性，并且当行程的方向从一个变化到另一个时，阻尼力变小。 气缸上下室通过主液压流体通道和第一和第二旁通通道相互连通。 在延伸行程中，第二旁路通道被止回阀切断，并且第一旁通通道中的活门通过流经孔口通道的流体根据行程频率而滑动，以调节第一旁路通道的通道面积 旁路通道 在收缩行程期间，第一旁路通道被止回阀切断，并且第二通道中的挡板根据行程频率被流经孔口通道的流体滑动以调节第二旁路的通道面积 通道。 在延伸和收缩行程中的任何一个中，另一行程的挡板通过气缸中的液压的作用返回到原始位置。
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公开(公告)号：US5042625A
公开(公告)日：1991-08-27
申请号：US551494
申请日：1990-07-11
申请人： Ralf Maus
发明人： Ralf Maus
摘要： In a damper for a steering device of a motor vehicle and more particularly a motor cycle a piston rod is axially movable with respect to the cylinder. The piston rod is provided with a piston inside the cylinder. The piston is provided with axial bores. The axial bores open into valve seat faces of the piston. Valve rings are allocated to the valve seat faces. Helical compression springs are located within the bores. These springs urge the valve rings towards respective opening positions. The valve rings are movable towards respective damping positions in response to the axial movement of the piston rod with respect to the cylinder. The valve rings have valve faces opposite to the respective valve seat faces. The valve faces are provided with projections towards the valve seat faces and with recesses adjacent these projections. So, a restricted fluid communication is obtained in the damping position of the respective valve ring.
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公开(公告)号：US4905799A
公开(公告)日：1990-03-06
申请号：US332469
申请日：1989-04-03
申请人： Fumiyuki Yamaoka , Mitsuo Sasaki
发明人： Fumiyuki Yamaoka , Mitsuo Sasaki
CPC分类号： F16F9/348
摘要： A shock absorber is provided a piston stroke dependent variable shock absorbing characteristics by a first and second flow restrictions associated with a piston. The first and second flow restrictions are arranged in a fluid path for communicating first and second working chambers defined within a shock absorber cylindrical housing in series. The first flow restriction associated with an orifice forming a part of the fluid path and has a predetermined relief pressure, for providing a predetermined first fixed flow restriction rate in response to a pressure difference between the first and second chambers smaller than or equal to the relief pressure and providing a second variable flow restriction rate in response to a pressure difference between the first and second chambers greater than the relief pressure. The second flow restriction is associated with the orifice for providing a third variable flow restriction rate variable depending upon the pressure difference between the first and second chamber.
摘要翻译： 通过与活塞相关联的第一和第二流动限制，提供了一种减震器，其具有活塞冲程相关的可变冲击吸收特性。 第一和第二流动限制被布置在流体路径中，用于连通限定在减震器圆筒形壳体内的第一和第二工作室。 与形成流体路径的一部分并且具有预定释放压力的孔口相关联的第一流动限制，用于响应于小于或等于救生圈的第一和第二腔室之间的压力差提供预定的第一固定流量限制率 并且响应于第一和第二室之间的压力差大于释放压力而提供第二可变流量限制速率。 第二流量限制与孔口相关联，用于根据第一和第二室之间的压力差提供第三可变流量限制率变量。
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公开(公告)号：US4768628A
公开(公告)日：1988-09-06
申请号：US24100
申请日：1987-02-06
CPC分类号： F16F9/50 , F16F2228/04
摘要： A shock absorber having a hollow slide slidably mounted in a fixed member disposed in a sleeve inside the body, separated from the latter by an annular gap and having an opening which communicates with a conduit opening into an a hydraulic chamber. The fixed member is mounted with clearance in the sleeve and is provided with radial ports communicating with the interior of the slide which is biased against the fixed member by an elastic return member bearing on the body. The slide is arranged in such manner as to be capable of occupying alternately a first position, in which it closes any communication between the annular gap and the interior of the slide when the suspension element is subjected to a low frequency oscillation less than .sqroot.2 times its frequency of resonance, and a second position in which it establishes a communication between its interior volume and the annular gap between the sleeve and the body when the suspension element is subjected to an oscillation frequency greater than its frequency of resonance.
摘要翻译： PCT No.PCT / FR86 / 00200 Sec。 371日期1987年2月6日 102（e）日期1987年2月6日PCT Filed 1986年6月10日PCT公布。 第WO86 / 07422号公报 日本1986年12月18日。一种减震器，其具有可滑动地安装在固定构件中的中空滑块，所述固定构件设置在主体内的套筒中，其中隔离件由环形间隙分开，并具有与导管开口连通的开口， 房间。 固定构件在套筒中安装有间隙，并且设置有与滑块内部连通的径向端口，其通过在主体上的弹性返回构件偏压抵靠固定构件。 滑动件布置成能够交替地占据第一位置，当悬架元件经受小于2ROOT的2频率的低频振荡时，第一位置闭合环形间隙和滑动件内部之间的任何连通 其谐振频率和第二位置，其中当悬挂元件受到大于其谐振频率的振荡频率时，第二位置在其内部容积与套筒和主体之间的环形间隙之间建立连通。
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10.发明授权Hydraulic shock absorber having piston-mounted valve biased by gaseous pressure 失效液压减震器具有由气压偏置的活塞安装阀
公开(公告)号：US4407396A
公开(公告)日：1983-10-04
申请号：US281140
申请日：1981-07-07
申请人： Jacques M. M. Sirven
发明人： Jacques M. M. Sirven
摘要： A shock absorber has a cylinder, a piston dividing the cylinder into two chambers, and a valve in the piston which opens to permit hydraulic fluid to flow through the piston when the compression rate of the shock absorber exceeds a limit value. The valve is moved to its open position by the pressure of hydraulic fluid in the chamber in the path of piston movement, and it is biased toward its closed position by a spring on the piston, a constant pressure gas in a reference chamber on the piston and the pressure of hydraulic fluid in the chamber behind the path of piston movement. Fluid from the contracting chamber is released by a check valve into a storage space.
摘要翻译： 减震器具有气缸，将气缸分成两个腔室的活塞，以及当减震器的压缩比超过限制值时，活塞中的阀门打开以允许液压流体流过活塞。 通过活塞运动路径中的腔室中的液压流体的压力将阀移动到其打开位置，并且通过活塞上的弹簧将其偏压到其关闭位置，活塞上的参考室中的恒压气体 以及在活塞运动路径后面的腔室中的液压流体的压力。 来自收缩室的流体由止回阀释放到储存空间中。
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