公开(公告)号：US20240309927A1

公开(公告)日：2024-09-19

申请号：US18350005

申请日：2023-07-11

申请人： HL MANDO CORPORATION

发明人： Kyudo Kim ,  Sewon Cho ,  Kwang Duk Baek

IPC分类号： F16F9/18 ,  F16F9/512

CPC分类号： F16F9/18 ,  F16F9/5126 ,  F16F2222/12 ,  F16F2228/04 ,  F16F2230/36

摘要： A body valve assembly includes: a body valve main body having a plurality of body compression channels and a plurality of body tension channels formed to penetrate in a direction connecting a compression chamber and a reserve chamber and a body main chamber formed at ends of the plurality of body compression channels in a direction of the reserve chamber; a body pin fastened through the body valve body and having a body injection channel communicating with the compression chamber; a body main valve configured to open or close the body main chamber; a body pilot housing having one side facing the body main valve and a body pilot chamber communicating with the body injection channel on the other side; and a free piston accommodated in the body pilot chamber and configured to change a force that presses the body pilot housing according to a pressure change in the body pilot chamber.

公开(公告)号：US20240117853A1

公开(公告)日：2024-04-11

申请号：US18276897

申请日：2022-02-15

申请人： ZF FRIEDRICHSHAFEN AG

发明人： Jörg RÖSSELER ,  Aleksandar KNEZEVIC ,  Stefan LIEHMANN

IPC分类号： F16F9/18

CPC分类号： F16F9/18

摘要： A damping valve device for a vibration damper has a restriction in connection with a valve element movable from an open position into a restriction position depending on the flow velocity of a damping medium inside the restriction. The valve element, as a variable-diameter annular element, moves in closing direction with increasing flow velocity of the damping medium within an annular groove of a valve support. The annular groove is constructed as a pressure space having at least one inflow orifice and at least one outflow orifice. The valve element is positioned at a radial distance from an annular groove base by centering elements.

公开(公告)号：US20240084868A1

公开(公告)日：2024-03-14

申请号：US17930540

申请日：2022-09-08

申请人： DRiV Automotive Inc.

发明人： Simon Sanchez

IPC分类号： F16F9/18 ,  F16F9/32 ,  F16F9/36 ,  F16F9/516

CPC分类号： F16F9/18 ,  F16F9/325 ,  F16F9/369 ,  F16F9/516 ,  B60G13/08 ,  F16F2222/12 ,  F16F2228/066

摘要： A shock absorber for a suspension system of a vehicle includes an intermediate tube on an inner tube defining an intermediate chamber between the inner tube and the intermediate tube. The shock absorber includes an outer tube and the inner tube and the intermediate tube are in the outer tube. The outer tube defines a reserve chamber between the outer tube and the intermediate tube. A valve fluidly connects the intermediate chamber and the reserve chamber. An elongated slot is in the outer tube between the valve and the reserve chamber.

公开(公告)号：US20240052906A1

公开(公告)日：2024-02-15

申请号：US18232029

申请日：2023-08-09

申请人： thyssenkrupp Bilstein GmbH ,  thyssenkrupp AG

发明人： Tim NORUSCHAT ,  Nicolas SUMKOETTER ,  Klaus SCHMIDT

IPC分类号： F16F9/18 ,  F16F9/32

CPC分类号： F16F9/18 ,  F16F9/3257 ,  B60G13/08

摘要： The present disclosure relates to a vibration damper for a vehicle comprising: an external tube and an internal tube which is arranged coaxially relative thereto, wherein a compensation chamber for receiving hydraulic fluid is formed between the external tube and the internal tube, and a working piston which is connected to a piston rod and which is arranged so as to be movable back and forth inside the internal tube, wherein the internal space of the internal tube is subdivided by the working piston into a first working chamber and a second working chamber, a central tube which is arranged inside the compensation chamber and which is attached to the internal tube, wherein the central tube has a tubular element and a helical element which is connected to the tubular element.

公开(公告)号：US11796025B2

公开(公告)日：2023-10-24

申请号：US17031167

申请日：2020-09-24

申请人： Showa Corporation

发明人： Yosuke Fujikawa ,  Yosuke Murakami

IPC分类号： F16F9/34 ,  F16F9/50 ,  F16F9/18 ,  B62K25/28 ,  F16F9/348 ,  F16K11/10 ,  B62K25/04 ,  F16F9/06 ,  F16F9/32 ,  F16F9/346 ,  F16F9/58

CPC分类号： F16F9/348 ,  F16F9/18 ,  F16F9/50 ,  F16K11/105 ,  B62K25/283 ,  B62K2025/044 ,  F16F9/065 ,  F16F9/3257 ,  F16F9/346 ,  F16F9/58 ,  F16F9/585 ,  F16F2222/12 ,  F16F2224/025 ,  F16F2228/066 ,  F16F2232/08 ,  F16F2234/02

摘要： A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having therein a flow path penetrating in the axial direction, and a step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a tip portion which extends further on the cylindrical body side than the step portion. An outer diameter of the tip portion is smaller than an outer diameter of the step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body.

公开(公告)号：US20230213080A1

公开(公告)日：2023-07-06

申请号：US17567291

申请日：2022-01-03

申请人： DRiV Automotive Inc.

发明人： Stefan DEFERME

IPC分类号： F16F9/36 ,  F16F9/18 ,  B60G17/08

CPC分类号： F16F9/369 ,  F16F9/18 ,  B60G17/08 ,  B60G2500/11 ,  B60G2800/162 ,  F16F2222/12 ,  B60G2202/24 ,  F16F2228/066 ,  F16F2232/08 ,  B60G2206/41 ,  F16F2234/02 ,  B60G2204/62

摘要： A damper including inner and outer tubes is provided. A piston is slidably disposed within the inner tube. An intermediate tube is positioned radially between the inner and outer tubes. The intermediate tube extends between first and second intermediate tube ends. An intermediate channel is disposed radially between the intermediate and inner tubes. A slanted elliptical seal is positioned inside the intermediate channel and divides the intermediate channel into first and second intermediate channel portions. A first control valve is in fluid communication with the second intermediate channel portion via a first intermediate tube opening. A second control valve is in fluid communication with the first intermediate channel portion via a second intermediate tube opening. The slanted elliptical seal abuts the intermediate tube between the first intermediate tube opening and the first intermediate tube end and between the second intermediate tube opening and the second intermediate tube end.

公开(公告)号：US20180355943A1

公开(公告)日：2018-12-13

申请号：US16105639

申请日：2018-08-20

申请人： Fox Factory, Inc.

发明人： Christopher Paul COX

IPC分类号： F16F9/48 ,  B60G17/08 ,  F16F9/18 ,  F16F9/49 ,  F16F9/32 ,  B60G13/08 ,  F16F9/19

CPC分类号： F16F9/48 ,  B60G13/08 ,  B60G17/08 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2500/112 ,  B60G2500/114 ,  F16F9/18 ,  F16F9/19 ,  F16F9/3214 ,  F16F9/3242 ,  F16F9/49

摘要： Methods and apparatus for position sensitive dampening. In one aspect a fluid damper is provided comprising a damper chamber divided by a piston into a primary compression and a primary rebound chamber; a secondary compression chamber in fluid communication with the damper chamber; and an adjustable fluid meter controlling fluid flow out of the secondary compression chamber.

公开(公告)号：US10005509B2

公开(公告)日：2018-06-26

申请号：US15343352

申请日：2016-11-04

申请人： Taiwan Hodaka Industrial Co., Ltd.

发明人： Black Tsai

IPC分类号： B62J1/08 ,  B62K19/36

CPC分类号： B62J1/08 ,  B62J2001/085 ,  B62K19/36 ,  F16F9/18 ,  F16F9/52

摘要： A bicycle seat cushion lifting and adjusting device is disposed on an outer side of a piston rod inside a hydraulic cylinder and sheathed with an elastic member. The elastic member is compressed by an oil inside the cylinder into a compress status in a room temperature environment. In a low temperature environment, the volume of the oil is decreased, and the elastic member resumes its original status to fill up the space of the cylinder caused by the decreased volume of the oil, to maintain a stable oil pressure inside the cylinder. When the seat cushion lifting and adjusting device is used in a low temperature or room temperature environment, the height of the seat cushion can be adjusted successfully to maintain a stable use of the bicycle seat cushion lifting and adjusting device.

公开(公告)号：US09868331B2

公开(公告)日：2018-01-16

申请号：US15039483

申请日：2014-11-21

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Mikio Yamashita

IPC分类号： F16F9/348 ,  B60G13/08 ,  F16F9/34 ,  F16F9/50 ,  F16J15/16 ,  F16J15/32 ,  F16J15/56 ,  F16F9/18 ,  F16F9/504

CPC分类号： 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

摘要： 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).

公开(公告)号：US09834054B2

公开(公告)日：2017-12-05

申请号：US15022323

申请日：2014-09-18

申请人： KYB Corporation

发明人： Takashi Teraoka ,  Kazutaka Inamitsu ,  Tatsuya Masamura

IPC分类号： F16F9/512 ,  B60G13/08 ,  F16F9/516 ,  F16F9/348 ,  F16F9/46 ,  F16F9/18 ,  F16F9/06

CPC分类号： B60G13/08 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2800/162 ,  F16F9/061 ,  F16F9/18 ,  F16F9/348 ,  F16F9/468 ,  F16F9/5126 ,  F16F9/516 ,  F16F2228/066

摘要： A shock absorber includes; a free piston that partitions the compression chamber into an expansion-side compression chamber and a contraction-side compression chamber; an expansion-side flow passage that connects the expansion-side chamber with the expansion-side compression chamber; a contraction-side flow passage that connects the contraction-side chamber with the contraction-side compression chamber; an expansion-side bypass valve provided in the expansion-side flow passage to admit only a flow directed from the expansion-side chamber to the expansion-side compression chamber and generate resistance; a contraction-side bypass valve provided in parallel with the expansion-side bypass valve to admit only a flow directed from the expansion-side compression chamber to the expansion-side chamber and generate resistance; an expansion-side elastic stopper configured to stop the free piston at an expansion-side stroke end; and a contraction-side elastic stopper configured to stop the free piston at a contraction-side stroke end.