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公开(公告)号：US20160169316A1
公开(公告)日：2016-06-16
申请号：US14904707
申请日：2014-07-16
Applicant: KYB Corporation
Inventor： Tomoo KUBOTA
CPC classification number: F16F9/061 , B60G13/08 , B60G2202/24 , B60G2206/41 , F16F9/067 , F16F2222/12
Abstract: A mono-tube type hydraulic shock absorber includes a cylinder, a free piston that partitions the inside of the cylinder into a liquid chamber in which a hydraulic fluid is filled and a gas chamber in which a gas is filled, a piston slidably inserted into the cylinder, the piston partitioning the liquid chamber into two working chambers, a sealing ring provided on an outer periphery of the free piston, the sealing ring being configured to seal between the cylinder and the free piston, and a lubricating oil enclosed within the gas chamber to lubricate between the sealing ring and the cylinder.
Abstract translation: 单管式液压减震器包括：气缸，将气缸内部分隔成液压室的自由活塞，其中填充有液压流体;气体填充气体室;可滑动地插入 所述活塞将所述液体室分隔成两个工作室，所述密封环设置在所述自由活塞的外周上，所述密封环被配置为在所述气缸和所述自由活塞之间进行密封，以及封闭在所述气体室内的润滑油 在密封环和气缸之间润滑。
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公开(公告)号：US20160138622A1
公开(公告)日：2016-05-19
申请号：US14898152
申请日：2014-06-26
Applicant: KYB Corporation
Inventor： Yuzo MASUTA , Norio YUZAWA
CPC classification number: F15B15/22 , B66F9/22 , F15B15/1457 , F15B15/149
Abstract: A fluid pressure cylinder includes: a piston rod; a cushioning chamber that decreases in capacity in accordance with extension of the fluid pressure cylinder; a communication passage that allows the cushioning chamber and an in-rod chamber to communicate with each other; a throttle passage that exerts a cushioning function by applying resistance to a flow of a working fluid from the cushioning chamber to the in-rod chamber; a check valve that is provided in a piston, allows the in-rod chamber and a driving chamber to communicate with each other, and has a checking function for permitting only a flow of the working fluid from the in-rod chamber to the driving chamber; and a pilot passage that is formed in the piston and disables the checking function by guiding a pressure in the cushioning chamber to the check valve as a pilot pressure.
Abstract translation: 流体压力缸包括：活塞杆; 缓冲室，其根据流体压力缸的延伸而减小容量; 连通通道，其允许缓冲室和杆内腔彼此连通; 节流通道，其通过对来自缓冲室的工作流体的流动施加阻力而施加缓冲功能; 设置在活塞中的止回阀允许杆内腔和驱动室彼此连通，并且具有检查功能，仅允许工作流体从杆内腔流到驱动室 ; 以及导向通道，其形成在活塞中并且通过将缓冲室中的压力引导到止回阀作为先导压力来禁止检查功能。
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公开(公告)号：US20250129864A1
公开(公告)日：2025-04-24
申请号：US18689918
申请日：2022-03-17
Applicant: KYB Corporation
Inventor： Tatsuo ITO
Abstract: A solenoid relief valve system includes: a solenoid relief valve; and a control unit; wherein the control unit has a dither generating unit configured to generate the dither on a plunger by applying a first dither signal or a second dither signal having different amplitude or frequency from the first dither signal to current to be supplied to a coil, and wherein the dither generating unit is configured to apply the first dither signal to the current to be supplied to the coil during adjustment of a setting pressure, by which the current to be supplied to the coil is caused to be changed, and configured to apply the second dither signal to the current to be supplied to the coil in a state in which the adjustment of the setting pressure is not performed.
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公开(公告)号：US12240530B2
公开(公告)日：2025-03-04
申请号：US17624220
申请日：2020-03-02
Applicant: KYB Corporation
Inventor： Kazuki Takahashi
Abstract: A steering device includes a rack shaft that turns wheels, a bush slidably support the rack shaft, tie-rods joined to the rack shaft, boots that cover a joining portion that joins the rack shaft and the tie-rod. A protrusion part is formed on either one of the bush and a rack housing so as to protrude toward the other. A restriction groove into which the protrusion part is inserted is formed on the other. A space inside the first boot and a space inside the second boot constantly communicate with each other via the restriction groove.
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公开(公告)号：US12152617B2
公开(公告)日：2024-11-26
申请号：US18245294
申请日：2021-10-01
Applicant: The Ritsumeikan Trust , KYB Corporation
Inventor： Shunichi Sugimoto , Sang-Ho Hyon , Yasushi Saitou , Sadayuki Kamikura
Abstract: A coupling structure for coupling a first member and a second member includes a rod-shaped part configured to be received across a first hole formed in the first member and a second hole formed in the second member. The rod-shaped part has a first insertion portion configured to be inserted into the first hole of the first member, and a second insertion portion configured to be inserted into the second hole of the second member. The coupling structure further includes a fixing configuration, the fixing configuration being configured to fix the first insertion portion and the first member by applying an external force to the first insertion portion, and the fixing configuration being configured to fix the second insertion portion and the second member by applying an external force to the second insertion portion.
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Patent Agency Ranking
公开(公告)号：US12130250B2
公开(公告)日：2024-10-29
申请号：US17918513
申请日：2021-03-22
Applicant: KYB CORPORATION
Inventor： Yuki Miyauchi , Shun Ohuchida
CPC classification number: G01N27/06 , G01N33/28 , G05B23/0254 , G05B23/0283
Abstract: A technique involves outputting not only the condition of hydraulic oil but also information on failure prediction of equipment by processing in real time. Such a technique utilizes an oil condition sensor attached to the equipment, a parameter calculator that calculates the values of a plurality of parameters indicating the state of the hydraulic oil based on the sensor output of the oil condition sensor and correlation information between the sensor output and the values of a plurality of parameters indicating the state of the hydraulic oil, and failure prediction determiner that predicts equipment failures based on parameter values and identifies and outputs parameters that are inferred as the cause of the failure prediction, and outputs not only the condition of hydraulic oil but also information on failure prediction of the equipment by processing in real time.
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公开(公告)号：US20240344581A1
公开(公告)日：2024-10-17
申请号：US18580456
申请日：2022-11-01
Applicant: KYB Corporation
Inventor： Yuki KUROIWA , Takao MURATA , Takeshi YASUI
CPC classification number: F16F9/19 , F16F9/3481 , F16F9/3482
Abstract: Valves of the present invention includes: a valve seat member equipped with a port and a seat portion surrounding an outlet end of the port; and an annular leaf valve whose inner periphery is immovably laid on top of the valve seat member and whose outer periphery to be seated on or spaced apart from the seat portion, wherein an external shape of the leaf valve is larger than an internal shape of a seat surface of the seat portion or larger than a virtual circle passing through an inner periphery of a seat surface of each circular arc shaped portion on the seat portion, and is smaller than an external shape of the seat surfaces or smaller than a virtual circle passing through an outer periphery of the seat surface of each circular arc shaped portion.
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公开(公告)号：US20240218889A1
公开(公告)日：2024-07-04
申请号：US18292429
申请日：2022-04-25
Applicant: KYB Corporation
Inventor： Tatsuya ITOU , Nobuyuki KOBAYASHI , Hirotaka KOBAYASHI
Abstract: A hydraulic cylinder includes: a cylinder tube; a piston rod; a piston member; a rod inner passage provided within the piston rod, a rod inner passage being configured such that a first opening portion opens at an outer circumferential surface of the piston rod in the cylinder tube, and such that a second opening portion opens outside the cylinder tube; and a sensor part provided outside the cylinder tube, the sensor part being configured to detect that the working fluid is guided to the rod inner passage, the piston member is connected to the piston rod in a state in which one-side end surface is in contact with an annular step portion so as to block the first opening portion of the rod inner passage, the annular step portion being provided on the outer circumferential surface of the piston rod, and the sensor part is configured to detect that the working fluid is guided to the rod inner passage from a rod side chamber and a counter rod side chamber through a gap between the step portion and the piston member.
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公开(公告)号：US20240183423A1
公开(公告)日：2024-06-06
申请号：US18285341
申请日：2022-04-27
Applicant: KYB Corporation
Inventor： Takeshi YASUI
CPC classification number: F16F9/348 , F16F9/19 , F16K1/42 , F16F2222/12
Abstract: There is provided a valve and a shock absorber that are inexpensive and excellent in assemblability. A valve of the present embodiment includes: an annular valve body; a spacer that is stacked on the annular valve body and serves as a fulcrum of the bending of a free end of the annular valve body; and a valve stopper that faces the annular valve body in an axial direction on the spacer side of the annular valve body and regulates the bending of the annular valve body when the annular valve body bends and comes into contact therewith, wherein the valve stopper includes: a ring that has a thickness in the axial direction smaller than the thickness of the spacer, and is arranged on an inner circumference or an outer circumference of the spacer; and a stacked annular plate that is stacked on the spacer.
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公开(公告)号：US11988266B2
公开(公告)日：2024-05-21
申请号：US17434973
申请日：2020-02-28
Applicant: KYB CORPORATION
Inventor： Koichiro Awano , Takahisa Mochizuki , Sodai Shimauchi
CPC classification number: F16F9/466 , F16F9/19 , F16F9/34 , B62K2025/044 , B62K25/08 , F16F2222/12 , F16F2228/066 , F16F2232/08 , F16F2234/02
Abstract: A shock absorber includes a hard-side damping element that gives resistance to a flow of liquid from an extension side chamber toward a compression side chamber, an electromagnetic valve capable of changing an opening area of an extension side bypass passage that bypasses the hard-side damping element and communicates the extension side chamber and the compression side chamber, and a soft-side damping element provided in the extension side bypass passage in series with the electromagnetic valve, in which the hard-side damping element includes an orifice and a leaf valve provided in parallel with the orifice, and in which the soft-side damping element includes an orifice having an opening area larger than an opening area of the orifice.
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