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公开(公告)号：US20170284496A1
公开(公告)日：2017-10-05
申请号：US15259699
申请日：2016-09-08
Applicant: Showa Corporation
Inventor： Kazuhiro MIWA , Yosuke MURAKAMI
CPC classification number: F16F9/34 , B62K25/283 , F16F9/062 , F16F9/08 , F16F9/185 , F16F9/19 , F16F9/3487 , F16F9/466 , F16F13/007 , F16K27/003 , F16K31/0655 , F16K31/0675
Abstract: A valve mechanism includes a housing, a plate-shaped valve body, a valve positioning member, and a drive valve moving mechanism. The valve positioning member causes the valve body to face the valve seat via a predetermined gap with respect to the valve seat. The drive valve moving mechanism causes the gap between an inner circumference of the valve body and the valve seat to be variable by moving the drive valve in a direction of approaching the valve seat and elastically deforming the valve body in a direction that the inner circumference of the valve body approaches the valve seat.
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公开(公告)号：US20190127016A1
公开(公告)日：2019-05-02
申请号：US16089197
申请日：2017-02-08
Applicant: Showa Corporation
Inventor： Yosuke MURAKAMI , Kazuhiro MIWA , Naoya KUROIWA
Abstract: A hydraulic shock absorber includes a control valve. The control valve includes a valve seat formed with a closing face, a valve body configured to come into contact with the closing face, and a valve shaft configured to transmit an operation force applied from a driving unit to the valve body. The control valve is defined with an upstream side flow channel extending from an inlet coupled to the upper end opening, via a space in which the valve body moves, to the closing face, and a downstream side flow channel extending from the closing face to an outlet. The control valve is disposed above the cylinder so that a central axis of the valve shaft is inclined relative to a central axis of the vehicle body side tube and the wheel side tube.
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公开(公告)号：US20160091044A1
公开(公告)日：2016-03-31
申请号：US14865935
申请日：2015-09-25
Applicant: Showa Corporation
Inventor： Yosuke MURAKAMI , Kazuhiro MIWA
Abstract: A damping-force generating device included in a shock absorber includes: a main valve that opens and closes for controlling a flow of oil (working fluid) caused by sliding of a piston in a cylinder and thereby generates a damping force; a first pressure chamber and a second pressure chamber separated by the main valve; a compression-side inlet check valve and an extension-side inlet check valve that allow only inflow of the oil into the first pressure chamber; and a compression-side outlet check valve and an extension-side outlet check valve that allow only outflow of the oil from the second pressure chamber. The first pressure chamber and the second pressure chamber are formed in a substantially double-ring structure.
Abstract translation: 包括在减震器中的阻尼力产生装置包括：主阀，其打开和关闭以控制由气缸中的活塞滑动引起的油（工作流体）的流动，从而产生阻尼力; 由主阀隔开的第一压力室和第二压力室; 压缩侧入口止回阀和仅允许油进入第一压力室的延伸侧入口止回阀; 以及仅允许来自第二压力室的油的流出的压缩侧出口止回阀和延伸侧出口止回阀。 第一压力室和第二压力室形成为大致双环结构。
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公开(公告)号：US20160090146A1
公开(公告)日：2016-03-31
申请号：US14865991
申请日：2015-09-25
Applicant: Showa Corporation
Inventor： Yosuke MURAKAMI , Kazuhiro MIWA
CPC classification number: B62K25/28 , F16F9/19 , F16F9/34 , F16F9/46 , F16F9/464 , F16F9/50 , F16F2230/24
Abstract: A shock absorber includes: a valve body; a valve seat; an actuator; and a fail-safe valve that is urged by a first elastic body. When fluid does not flow, the fail-safe valve is urged by the first elastic body to come into contact with the valve body and close a channel. When the fluid flows, the fail-safe valve is spaced from the valve body by a fluid pressure to open the channel. When the valve body moves most in a valve opening direction, the fail-safe valve is brought into contact with the valve body and the channel is closed, and a supporting portion supports a part of the fail-safe valve. When the fluid flows in this state, at least a part of the fail-safe valve, which is in contact with a non-supporting portion, is spaced from the valve body by the fluid pressure to open the channel.
Abstract translation: 减震器包括：阀体; 阀座; 执行机构 以及由第一弹性体推动的故障安全阀。 当流体不流动时，故障安全阀被第一弹性体推动以与阀体接触并关闭通道。 当流体流动时，故障安全阀通过流体压力与阀体间隔开以打开通道。 当阀体以阀打开方向最大地移动时，故障安全阀与阀体接触并且通道关闭，并且支撑部分支撑故障安全阀的一部分。 当流体在该状态下流动时，与非支撑部分接触的故障安全阀的至少一部分与阀体间隔开流体压力以打开通道。
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公开(公告)号：US20150276004A1
公开(公告)日：2015-10-01
申请号：US14667219
申请日：2015-03-24
Applicant: Showa Corporation
Inventor： Yosuke MURAKAMI , Kazuhiro MIWA
Abstract: A damping force generating apparatus of a shock absorber includes a main flow path through which a working fluid flows, a main valve which generates a damping force by controlling the flow of the working fluid by opening and closing the main flow path, a pilot chamber into which the working fluid branched from the main flow path flows and which applies an internal pressure in a valve closing direction to the main valve by a pressure of the working fluid, and a pilot flow path to which the working fluid flows out from the pilot chamber. In addition, a jet stream which is generated in a flow path narrowed by the main valve in the main flow path joins the flow of the working fluid which flows out from the pilot chamber via the pilot flow path.
Abstract translation: 减震器的阻尼力产生装置包括工作流体流过的主流路，通过打开和关闭主流路而控制工作流体的流动而产生阻尼力的主阀， 从主流路分支的工作流体流动并通过工作流体的压力向主阀的关闭方向施加内部压力，以及工作流体从先导室流出的先导流路 。 此外，在主流路中的主阀缩小的流路中产生的喷流流经由先导流路与从先导室流出的工作流体的流动连接。
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Patent Agency Ranking
公开(公告)号：US20190219126A1
公开(公告)日：2019-07-18
申请号：US16359580
申请日：2019-03-20
Applicant: Showa Corporation
Inventor： Kazuhiro MIWA , Naoya KUROIWA
CPC classification number: F16F9/464 , B62K25/08 , B62M7/00 , F16F9/185 , F16F9/46 , F16F9/465 , F16F13/007 , F16F2228/066
Abstract: There is provided a compact damping force variable shock absorber capable of implementing different adjustments for a compression-side stroke and an extension-side stroke as initial settings. A damping force variable device in one embodiment includes: a main valve that opens and closes to control flow of oil caused by sliding of a piston in a cylinder, thereby generating damping force; a pilot chamber into which a portion of the flow of the oil is introduced so that internal pressure is applied to the main valve in a valve-closing direction; a pilot valve that opens and closes to adjust the internal pressure of the pilot chamber; and a communication passage that communicates the pilot chamber with a rod-side oil chamber or a piston-side fluid chamber.
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公开(公告)号：US20160288869A1
公开(公告)日：2016-10-06
申请号：US15066155
申请日：2016-03-10
Applicant: Showa Corporation
Inventor： Kazuhiro MIWA , Naoya KUROIWA
CPC classification number: B62K25/283 , F16F9/185 , F16F9/465 , F16F2230/24
Abstract: A shock absorber includes a cylinder in which oil is sealed, a piston slidably fitted into the cylinder, a piston rod connected to the piston and extending to the outside of the cylinder, and a damping force generating apparatus controlling a flow of the oil generated by the sliding of the piston inside the cylinder. The damping force generating apparatus includes a valve body generating a damping force by being opened and closed on a flow path in which the oil flows, a valve seat closing the flow path when the valve body is seated, and an actuator generating thrust to the valve body in a valve closing direction. The valve seat has a first elastic body which is elastically deformable in the valve closing direction of the valve body.
Abstract translation: 减震器包括：油被密封的气缸，可滑动地装配到气缸中的活塞;连接到活塞并延伸到气缸外部的活塞杆;以及阻尼力产生装置，其控制由 活塞在气缸内的滑动。 阻尼力产生装置包括阀体，该阀体通过在油流动的流路上开闭而产生阻尼力，当阀体就座时关闭流路的阀座，以及向阀产生推力的致动器 阀体关闭方向。 阀座具有能够沿阀体的阀关闭方向弹性变形的第一弹性体。
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公开(公告)号：US20160369862A1
公开(公告)日：2016-12-22
申请号：US15184534
申请日：2016-06-16
Applicant: Showa Corporation
Inventor： Kazuhiro MIWA , Naoya KUROIWA
CPC classification number: F16F9/464 , B62K25/08 , B62M7/00 , F16F9/185 , F16F9/46 , F16F9/465 , F16F13/007 , F16F2228/066
Abstract: There is provided a compact damping force variable shock absorber capable of implementing different adjustments for a compression-side stroke and an extension-side stroke as initial settings. A damping force variable device in one embodiment includes: a main valve that opens and closes to control flow of oil caused by sliding of a piston in a cylinder, thereby generating damping force; a pilot chamber into which a portion of the flow of the oil is introduced so that internal pressure is applied to the main valve in a valve-closing direction; a pilot valve that opens and closes to adjust the internal pressure of the pilot chamber; and a communication passage that communicates the pilot chamber with a rod-side oil chamber or a piston-side fluid chamber.
Abstract translation: 提供了一种紧凑的阻尼力可变减震器，其能够对作为初始设定的压缩侧冲程和拉伸侧冲程实施不同的调节。 一个实施例中的阻尼力可变装置包括：主阀，其开启和关闭以控制由活塞在气缸中的滑动引起的油流，从而产生阻尼力; 引导室，其中引入油的一部分的流动，使得内部压力以关闭方向施加到主阀; 一个打开和关闭以调节先导室的内部压力的先导阀; 以及将导向室与杆侧油室或活塞侧流体室连通的连通路。
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公开(公告)号：US20140175764A1
公开(公告)日：2014-06-26
申请号：US14031861
申请日：2013-09-19
Applicant: SHOWA CORPORATION
Inventor： Yosuke MURAKAMI , Tadashi HACHISUKA , Kazuhiro MIWA
IPC: B60G17/015
CPC classification number: B60G17/015 , B60G17/017 , B60G2300/12 , B60G2500/30 , B62K25/06
Abstract: A damper is provided with a vehicle height control unit including: a jack housing of a hydraulic jack provided at an upper end portion of a vehicle body side tube such that a plunger which defines a jack chamber is fitted on the jack housing so as to be movable up and down; a suspension spring provided between the plunger and a wheel side tube; and a pump housing provided in an upper end portion of a damper cylinder and forming a pump chamber in a hydraulic pump such that a pump pipe forming a part of a piston rod and communicating with an oil chamber in the damper cylinder is slidably inserted into the pump chamber.
Abstract translation: 具有车辆高度控制单元的阻尼器包括：设置在车体侧管的上端部处的液压千斤顶的插座壳体，使得限定千斤顶室的柱塞安装在插座壳体上，从而成为 上下移动; 设置在所述柱塞和所述车轮侧管之间的悬架弹簧; 以及泵壳体，其设置在阻尼气缸的上端部，并且在液压泵中形成泵室，使得形成活塞杆的一部分并与阻尼气缸中的油室连通的泵管可滑动地插入 泵室。
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公开(公告)号：US20140167371A1
公开(公告)日：2014-06-19
申请号：US14018830
申请日：2013-09-05
Applicant: SHOWA CORPORATION
Inventor： Yosuke MURAKAMI , Tadashi HACHISUKA , Kazuhiro MIWA
IPC: B60G17/08
CPC classification number: B62K25/04 , B60G17/016 , B60G17/08 , B60G2400/25 , B60G2500/30 , B62K25/08 , F16F9/56
Abstract: A vehicle height control device comprises a vehicle height control unit including a jack housing of a hydraulic jack provided at an upper end portion of an inner tube, a suspension spring provided between an upper end of a hollow pipe and a plunger of the hydraulic jack, a pump housing provided at the plunger of the hydraulic jack and forming a pump chamber of a hydraulic pump, and a pump pipe communicating with an oil reservoir chamber on an inner periphery of the hollow pipe and slidably inserted into the pump chamber in the pump housing, and a selector valve controlling the vehicle height by adjusting the amount of hydraulic oil fed to a jack chamber in the hydraulic jack by the hydraulic pump that performs the pumping operation in conjunction with extending and contracting motion of the hollow pipe with respect to the inner tube.
Abstract translation: 车辆高度控制装置包括：车辆高度控制单元，包括设置在内管的上端部处的液压千斤顶的插座壳体，设置在中空管的上端和液压千斤顶的柱塞之间的悬架弹簧， 设置在液压千斤顶的柱塞处并形成液压泵的泵室的泵壳体，以及与中空管的内周上的储油室连通并且可滑动地插入到泵壳体中的泵室中的泵管 以及选择阀，其通过调节通过执行抽吸操作的液压泵调节供给到液压千斤顶中的千斤顶室的液压油的量，并结合中空管相对于内部的延伸和收缩运动来控制车辆高度 管。
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