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公开(公告)号：US20240360885A1
公开(公告)日：2024-10-31
申请号：US18139969
申请日：2023-04-27
Applicant: Hitachi Astemo, Ltd.
Inventor： Markus STEEB , Shivanand SANKARAN , Andrew Feldkamp
IPC: F16F9/348
CPC classification number: F16F9/3484 , F16F9/3481 , F16F2222/126
Abstract: This shock absorber includes a cylinder having an inner chamber; a cage body partitioning the inner chamber into first and second chambers, and includes a first passage allowing communication between the first and second chambers, a first seat part, a second passage allowing communication between the first and second chambers, and a second seat part. A first valve which is a first valve coming into contact with the first seat part to close the first passage and being separated from the first seat part to open the first passage, and in which a communication hole communicating with the second passage is formed. A second valve comes into contact with the second seat part to close the second passage and is separated from the second seat part to open the second passage. A passage adjusting disc is provided between the first valve and the cage body.
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公开(公告)号：US11698120B2
公开(公告)日：2023-07-11
申请号：US17214218
申请日：2021-03-26
Applicant: DRiV Automotive Inc.
Inventor： Franky Montagna
CPC classification number: F16F9/3235 , F16F9/19 , F16F9/3484 , F16F9/3488 , F16F9/50 , B60G13/08 , B60G17/08 , B60G2202/24 , B60G2204/62 , B60G2206/41 , B60G2500/112 , B60G2800/162 , F16F2222/12 , F16F2228/066 , F16F2230/183 , F16F2232/08 , F16F2234/02
Abstract: A damper assembly includes a pressure tube defining a chamber. The damper assembly includes a body supported by the pressure tube. The body has a first surface and a second surface opposite and spaced from the first surface along an axis. The body defines a passage extending from the first surface to the second surface. The damper assembly includes an orifice disc movable from an unflexed position to a first flexed position and movable from the first flexed position to a second flexed position. The orifice disc in the unflexed position is spaced from the first surface radially outward and radially inward of the passage. The orifice disc in the first flexed position is spaced from the first surface radially outward of the passage and abuts the first surface radially inward of the passage. The orifice disc in the second flexed position abuts the first surface radially outward and radially inward of the passage.
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公开(公告)号：US20180223941A1
公开(公告)日：2018-08-09
申请号：US15865157
申请日：2018-01-08
Applicant: BEIJINGWEST INDUSTRIES CO., LTD.
Inventor： Radoslaw Pawel Grzesik , Pawel Edward Kus , Piotr Grzegorz Maton
CPC classification number: F16F9/49 , F16F9/185 , F16F9/3214 , F16F9/3257 , F16F9/348 , F16F9/3484 , F16F9/3488 , F16F9/368 , F16F9/483 , F16F2234/04
Abstract: Disclosed is a hydraulic damper wherein the main damper tube has a narrowed section and it includes at least one additional piston assembly adapted to be received in the narrowed section to generate additional damping force. The piston assembly comprises a compression valve assembly and a rebound valve assembly each comprising at least one deflective disc. A sealing ring assembly is disposed between the compression and rebound valve assembles and comprises a first annular member having a plurality of channels covered by the deflective disc of the compression valve assembly; a second annular member having a plurality of channels, covered by the deflective disc of the rebound valve assembly; an axial projection between the annular members radially internal to the axial channels; and a sealing ring displaceable axially between the annular members and radially over the axial projection and adapted to cooperate with the narrowed section of the tube.
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公开(公告)号：US09879747B2
公开(公告)日：2018-01-30
申请号：US14762307
申请日：2014-01-17
Applicant: KAYABA INDUSTRY CO., LTD.
Inventor： Kazuhiro Tanaka
CPC classification number: F16F9/3484 , F16F9/3214
Abstract: A shock absorber includes a valve disc defining two chambers, a flow passage formed in the valve disc, the flow passage allowing communication between the two chambers, a window formed in the valve disc, the window being connected to the flow passage, a valve seat formed on the valve disc, the valve seat surrounding the outer periphery of the window; and a plurality of leaf valves formed in the shape of annular plates, the plurality of leaf valves being stacked on the valve disc. The first leaf valve stacked on the valve disc is provided such that an outer peripheral part is seatable on and separable from the valve seat, and includes a rib recessed on a valve disc side and projecting on an opposite valve disc side at a position facing the valve seat.
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公开(公告)号：US09868331B2
公开(公告)日：2018-01-16
申请号：US15039483
申请日：2014-11-21
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Mikio Yamashita
IPC: F16F9/348 , B60G13/08 , F16F9/34 , F16F9/50 , F16J15/16 , F16J15/32 , F16J15/56 , F16F9/18 , F16F9/504
CPC classification number: B60G13/08 , B60G2202/24 , B60G2500/04 , B60G2500/11 , B60G2800/162 , F16F9/18 , F16F9/182 , F16F9/185 , F16F9/34 , F16F9/348 , F16F9/3482 , F16F9/3484 , F16F9/50 , F16F9/504 , F16F2228/066 , F16J15/16 , F16J15/32 , F16J15/56
Abstract: A shock absorber includes: a damping valve that suppresses a flow of operating fluid due to the sliding of a piston to generate damping force; a bottomed tubular pilot case that forms a pilot chamber that causes pressure to act on the damping valve in a valve closing direction, together with the damping valve; and an annular seal member (146) that is provided to be fixed to the outer circumferential side of a rear surface of the damping valve, and is fitted into a tube of the pilot case so as to be slidable and to be in a liquid tight manner. A part of the flow of the operating fluid is guided to the pilot chamber and opening of the damping valve is suppressed by the pressure of the pilot chamber. An annular concave portion (380) is formed on the outer circumferential side of the seal member (146), and an annular convex portion (385) is formed on the inner circumferential side of the seal member (146).
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公开(公告)号：US20170321778A1
公开(公告)日：2017-11-09
申请号：US15523515
申请日：2015-10-12
Applicant: ZF Friedricshafen AG
Inventor： Aleksandar KNEZEVIC , Jörg RÖSSELER
CPC classification number: F16F9/3481 , B60G13/06 , F16F9/185 , F16F9/341 , F16F9/3484 , F16K47/04
Abstract: A damping valve for a vibration damper includes a damping valve body with separate passage channels. The outlet orifices of the passage channels for a flow direction are connected to one another via a groove, which is covered by at least one valve disk and is bounded radially by at least one annular web on the radially inner side with respect to the center axis (A) of the damping valve and at least one annular web on the radially outer side with respect to the center axis (A) of the damping valve. The radially outer web has at least one first portion in which the support is configured as area support for the valve disk, and the radially outer web has at least one second portion in which the support is configured as line support for the valve disk.
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公开(公告)号：US09732819B2
公开(公告)日：2017-08-15
申请号：US15009772
申请日：2016-01-28
Applicant: MANDO CORPORATION
Inventor： Eun Joong Kim
CPC classification number: F16F9/5165 , F16F9/16 , F16F9/3214 , F16F9/3415 , F16F9/348 , F16F9/3484 , F16F9/464 , F16F9/465 , F16F9/466
Abstract: An electronically controlled internal damper includes: a main passage formed by a working fluid flowing through a main piston; a pilot passage formed by a working fluid as much as a predetermined amount discharged from a first pilot chamber and a second pilot chamber so as to maintain internal pressures of the first pilot chamber and the second pilot chamber to a predetermined level when pressures of the first pilot chamber and the second pilot chamber are increased beyond the predetermined level; and a bypass passage formed by a working fluid passing through the compression retainer and the rebound retainer symmetrically disposed above and under the main piston and a plurality of holes formed transversely to a vertical length direction of a spool rod. Accordingly, the electronically controlled internal damper is capable of implementing damping performance in both a soft mode and a hard mode with a relatively simple structure and increasing sealing performance while reducing rigidity.
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公开(公告)号：US20170146088A1
公开(公告)日：2017-05-25
申请号：US15402813
申请日：2017-01-10
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Chad RUMMEL , Daniel T. KEIL
CPC classification number: F16F9/3484 , B60G13/08 , B60G2500/114 , F16F9/34 , F16F9/3482 , F16F9/3488
Abstract: A shock absorber for a vehicle is disclosed which has a pressure tube defining a fluid chamber, a piston rod, and a piston disposed within the fluid chamber, and carried on the piston rod, which divides the fluid chamber into upper and lower working chambers, and which has a plurality of passages extending between the upper and lower working chambers. A valve disc assembly controls a flow of fluid, and includes a spring disc. The spring disc has a non-symmetrical circumferential shape which enables a stiffness of the valve disc assembly to be tailored so that it begins to open at a first peripheral point, and continuously gradually opens about a non-symmetrical circumferential path until reaching a second peripheral point adjacent the first peripheral point.
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公开(公告)号：US09587703B2
公开(公告)日：2017-03-07
申请号：US14716048
申请日：2015-05-19
Applicant: Tenneco Automotive Operating Company Inc.
Inventor： Chad Rummel
CPC classification number: F16F9/3484 , B60G13/08 , B60G2500/114 , F16F9/34 , F16F9/3482 , F16F9/3488
Abstract: A shock absorber for a vehicle may include a piston and a valve disc assembly. The piston defines a plurality of passages extending through the piston between an upper working chamber and a lower working chamber of a fluid chamber. The valve disc assembly engages the piston and controls a flow of fluid between the upper working chamber and the lower working chamber through the plurality of passages. The valve disc assembly includes a variable radius spring disc among a plurality of discs. The variable radius spring disc has a varying outer radius. The valve disc assembly has a stiffness that varies circumferentially based on the variable radius spring disc such that an actuation of the valve disc assembly with respect to the piston varies circumferentially.
Abstract translation: 用于车辆的减震器可以包括活塞和阀盘组件。 活塞限定了在流体室的上部工作室和下部工作室之间延伸穿过活塞的多个通道。 阀盘组件接合活塞并通过多个通道来控制上工作室和下工作室之间的流体流动。 所述阀盘组件包括多个盘之间的可变半径弹簧盘。 可变半径弹簧盘具有变化的外半径。 阀盘组件具有基于可变半径弹簧盘沿圆周变化的刚度，使得阀盘组件相对于活塞的致动在周向上变化。
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公开(公告)号：US20160245361A1
公开(公告)日：2016-08-25
申请号：US15030441
申请日：2014-09-26
Applicant: KYB CORPORATION
Inventor： Masahiro MIWA , Yuta HOSHINO
CPC classification number: F16F9/3484 , F16F9/3481 , F16K15/16 , F16K31/1226 , F16K47/04 , Y10T137/7779
Abstract: A valve includes a valve disc that partitions one chamber and another chamber. The valve disc includes annular bosses and seats. The boss is formed at each of the one chamber side and the other chamber side to support leaf valves. The seats are formed on outer peripheral sides of the respective bosses on the one chamber side and the other chamber side. The leaf valves are left from/seated on the seats. At least one of the seats on the one chamber side and the other chamber side are disposed to project with respect to the bosses. An outer peripheral end of the seat on the one chamber side is disposed on an outer peripheral side with respect to an outer peripheral end of the seat on the other chamber side. The valve disc includes an auxiliary seat. The auxiliary seat is formed on an outer peripheral side of the seat on the other chamber side. The auxiliary seat is disposed at a height identical to the seat on the other chamber side. Alternatively, the auxiliary seat projects with respect to the seat on the other chamber side.
Abstract translation: 阀包括分隔一个室和另一个室的阀盘。 阀盘包括环形凸台和座。 凸台形成在一个室侧和另一个室侧中的每一个处以支撑叶片阀。 座位形成在一个室侧和另一个室侧的各个凸起的外周侧。 叶片阀从座椅上留下。 一个腔室侧和另一个腔室侧的至少一个座被布置成相对于凸起突出。 在一个室侧的座椅的外周端相对于另一个室侧的座椅的外周端设置在外周侧。 阀盘包括辅助座。 辅助座形成在另一个室侧的座椅的外周侧。 辅助座椅设置在与另一个室侧的座椅相同的高度处。 或者，辅助座椅相对于另一个腔室侧的座椅突出。
