WO2014135183A1 - Schwingungsdämpfer - Google Patents

Schwingungsdämpfer Download PDF

Info

Publication number
WO2014135183A1
WO2014135183A1 PCT/EP2013/003893 EP2013003893W WO2014135183A1 WO 2014135183 A1 WO2014135183 A1 WO 2014135183A1 EP 2013003893 W EP2013003893 W EP 2013003893W WO 2014135183 A1 WO2014135183 A1 WO 2014135183A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
valve
vibration damper
tube
electrode tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2013/003893
Other languages
German (de)
English (en)
French (fr)
Inventor
Joachim Dr-Ing. FUNKE
Matthias Bruns
Nils Herrmann
Lucien Johnston
Dorothea Adams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fludicon GmbH
Original Assignee
Fludicon GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fludicon GmbH filed Critical Fludicon GmbH
Priority to EP13830034.8A priority Critical patent/EP2964972B1/de
Priority to US14/654,224 priority patent/US9662952B2/en
Priority to JP2015560560A priority patent/JP6571536B2/ja
Publication of WO2014135183A1 publication Critical patent/WO2014135183A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
    • B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
    • B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/062—Bi-tubular units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/532—Electrorheological [ER] fluid dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/10—Damping action or damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • F16F2224/043—Fluids electrorheological
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/24—Detecting or preventing malfunction, e.g. fail safe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/185—Bitubular units

Definitions

  • the invention relates to a vibration damper for damping of compression and rebound forces on motor vehicles according to the preamble of patent claim 1.
  • Vibration dampers are used in motor vehicles to ensure that the vibrations of the chassis as sprung masses decay quickly to ensure the driving stability and to create a desired ride comfort. These are usually
  • Cylinder with its lower end preferably attached to a wheel or axle.
  • the piston divides the cylinder into an upper Ausfahrhunt and a lower
  • Retraction chamber which has at least one throttle valve
  • the retraction chamber is additionally connected to a gas pressure chamber in which a pre-pressure of about 20 to 30 bar is entered in order to avoid cavitation.
  • a pre-pressure of about 20 to 30 bar is entered in order to avoid cavitation.
  • Throttle valves are designed to be electromagnetically adjustable to the driving behavior of a vehicle to a predetermined
  • Vibration damping and / or to be able to adapt to a desired ride comfort are relatively slow in their control behavior, so that often fast vibration changes can not be damped quickly enough.
  • Cylinder inner tube arranged a spaced electron tube, which forms a throttle gap with the cylinder inner tube.
  • the throttle gap is connected to both the retraction and the extension chamber, wherein the viscosity of the flowing through the throttle gap electrorheological fluid is controllable via a high voltage between the electrode tube and the cylinder inner tube.
  • Vibration damper for volume compensation of the piston rod an additional pneumatic pressure medium cylinder with another piston which is axially connected to the hydraulic cylinder as a so-called Einrohrdämpfer. This extends the vibration damper not inconsiderable, resulting in
  • EP 0 261 472 B1 Another electrorheological vibration damper is known from EP 0 261 472 B1, known as the so-called
  • the shock absorber consists of a cylinder inner tube around which coaxially three further spaced cylinder tubes are arranged as electrodes which form three valve gaps around the cylinder inner tube. Coaxial with the electrode tubes is still another spaced
  • Gas pressure chamber passes through the throttle gap in the extension chamber and affects the vibration damping unfavorable. Furthermore, the two-pipe damper also causes by the three radially juxtaposed throttle gaps
  • the invention is therefore based on the object, a
  • gaseous pressure medium is quickly returned to the gas pressure chamber, whereby the desired
  • Liquid is preserved in the long term. At the same time this reduces the risk that a gaseous
  • valve sub-columns between the cylinder inner tube and the electrode tube by means of sealing means centering of the tubes is achieved, which can also improve the accuracy of the gap heights. This simultaneously increases the accuracy of the vibration damping, as at
  • the helical sealant as a double helix, because they increase the gap lengths, which is available for viscosity control.
  • Electrode tube has a higher mechanical stiffness of the
  • Vibration damper achieved with small wall thicknesses of the individual tubes.
  • an electronic control circuit is provided as a high-voltage electronics on the vibration damper, due to the life and the most recent damper path for the
  • Fig. 1 a schematically illustrated electrorheological
  • a controllable hydraulic vibration damper with electrorheological fluid is shown schematically, which serves as a shock absorber for a
  • Motor vehicle is designed as a so-called two-tube damper.
  • This vibration damper comprises a cylinder inner tube 1, in which an axially displaceable piston 2 is arranged, to which a piston rod 3 which can be moved upward in the installed position is fastened.
  • the piston 2 divides the
  • Pressure medium means an electrorheological fluid
  • a spaced electrode tube 7 is preferably made
  • the throttle gap 6 is at its upper end through a bore 15 in the cylinder inner tube 1 with the extension chamber 5 and by a third check valve 10 as a bottom valve in
  • Retraction chamber 4 connected. Coaxially around the electrode tube 7 is still a spaced outer tube 8 is arranged, the upper part of which is a gas pressure chamber 9, in which a provided with a slight overpressure of about 2 to 3 bar pneumatic
  • the gas pressure chamber 9 is in its upper part by a ring seal 17 between the
  • Electrode tube 3 an upper cylinder cover 27 and the outer tube 8 sealed.
  • the gas pressure chamber 9 In the lower part of the gas pressure chamber 9 is limited by the height of the electrorheological fluid whose
  • Level 18 in the outer annular space 19 between the outer tube 8 and the electrode tube 3 depends on the respective piston position.
  • To seal the vibration damper is in the lower part of a lower cylinder cover 20 on the outer tube. 8
  • the throttle gap 7 which is left between the cylinder inner tube 1 and the electrode tube 7 is subdivided into two split valve seals 12, 13 formed as double helix by two gap seals 21, 22 arranged in helical fashion. These are between the electrode tube 7 and the
  • Cylinder inner tube 1 two offset by 180 °
  • Fig. 2 of the drawing shows a part of
  • Cylinder inner tube 1 in which two helical grooves 21 are milled, which have a predetermined pitch and from each other have a uniform axial distance and constitute a double helix.
  • Gap seal 23 inserted or cast.
  • Gap seals 22, 23 are preferably made of a
  • Electrode tube 7 two mutually sealed
  • Ausfahrhunt 5 can flow into the retraction chamber 4.
  • Gap seals 22, 23 could also in similar grooves or penetrating gaps in the
  • the gap seals 22, 23 can also be linear
  • valve-part gaps 12, 13 can be arranged between the cylinder inner tube 1 and the electrode tube 7, for example as a triple helix.
  • a second non-return valve 24, which can be opened to the extension chamber 5, is additionally provided in the piston 2, through which the electrorheological fluid flows during retraction of the
  • Piston rod 3 flows from the retraction chamber 4 in the extension chamber 5, in which case the retracting piston rod volume passes through the throttle gaps 12, 13 to the outer annular space 19 and increases the level 18 there.
  • Gas pressure chamber 9 can get into the extension chamber 5, a gas collection chamber 25 is provided at the top of the Ausfahrhunt 5 in Beriech the upper cylinder cover 27 or a related annular part, which is connected to a specially throttled first check valve 14, the output side in the Gasdruckkemmer 9 opens.
  • the execution of this first check valve 14 is shown in detail in Fig. 3 of the drawing, which is a sectional view of the upper vibration damper part shows.
  • the throttled first check valve 14 consists of an annular
  • valve upper part 28 and an annular valve lower part 29 which are arranged coaxially to the piston rod 3 below the annular seal 17 in the upper cylinder cover 27.
  • valve upper part 28 is preferably made of a sealing
  • valve body 29 is also annular and preferably also consists of a
  • lubricious metal such as B. brass, which rests with its outer lateral surface 33 inside the outer tube 8. Below the outer circumferential surface 33, the valve body 29 is located
  • valve interior 34 is left between the valve top 28 and the valve body 29.
  • Gas collecting chamber 25 is the valve body 29 in a depressurized state slightly slidably on the piston rod 3 and forms with this a thin sliding gap, although passes gas bubbles, but is too narrow for a fluid and therefore forms a throttle gap. In the unpressurized state often accumulate after longer periods or other operating conditions
  • Piston rod outer surface is formed to the valve interior 34, in which then the pressure with the gas bubbles extends. As a result, the sealing lip 30 is pressed radially outward and releases the path for the gas bubbles to the connecting bore 31. As soon as the pressure in the gas pressure chamber 9 reaches the pressure in the extension chamber 5, the sealing lip 30 of the throttled first check valve 14 closes, so that the
  • Vibration damper can not affect.
  • a high-voltage electronics 37 is arranged, the at least one controllable
  • Electronic circuit 38 contains.
  • the controllable high-voltage power supply 39 forms from the vehicle voltage
  • the intended high voltage is first controlled to increase slowly, in which the electronic circuit 38 calculates the rising control voltage from the predetermined characteristic curves, after which a voltage flashover in this phase can be avoided. Since this is also dependent on the fluid temperature, the detected temperature at the
  • the electrode tube 7 is applied an optimized high voltage, which controls the desired damping force, without causing voltage flashovers.
  • characteristic curves are input in the electronic circuit 38, which correspond to the control current setpoints and which are respectively compared with the detected actual values and at a
  • Electrode tube 7 externally provided with an insulating coating or insulation 36 to reduce the radiation to the outside, in particular in the outer annulus 19. As a result, in particular the dimensioning of the
  • High-voltage power supply 39 can be reduced, making this easier and more compact executable.
  • the vibration damper described above operates as follows during driving:
  • electrorheological fluid pressure medium is applied as a pressure medium.
  • Extraction chamber 5 located electrorheological fluid through the holes 15 and the valve member gaps 12, 13 in the outer annular space 19 and the bottom valve 10 in the
  • Gas pressure chamber 9 expands by its form.
  • the electro-rheological fluid behaves in the uninfluenced so stress-free state as a hydraulic fluid, so that such a vibration damper without control voltage basically like a conventional hydraulic shock absorber
  • the vibration damper is controlled so that at high compression velocities according to a predetermined deflection characteristic, the voltage is increased so far that the wheel vibrations relative to the vehicle chassis are attenuated accordingly.
  • a force is transmitted to the vehicle chassis by the compression vibration, as a result, a rebound, which also

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid-Damping Devices (AREA)
  • Vehicle Body Suspensions (AREA)
PCT/EP2013/003893 2012-12-21 2013-12-20 Schwingungsdämpfer Ceased WO2014135183A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13830034.8A EP2964972B1 (de) 2013-03-07 2013-12-20 Schwingungsdämpfer
US14/654,224 US9662952B2 (en) 2012-12-21 2013-12-20 Vibration damper
JP2015560560A JP6571536B2 (ja) 2013-03-07 2013-12-20 振動ダンパ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013003841.3 2013-03-07
DE102013003841.3A DE102013003841B4 (de) 2012-12-21 2013-03-07 Schwingungsdämpfer

Publications (1)

Publication Number Publication Date
WO2014135183A1 true WO2014135183A1 (de) 2014-09-12

Family

ID=50112864

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/003893 Ceased WO2014135183A1 (de) 2012-12-21 2013-12-20 Schwingungsdämpfer

Country Status (5)

Country Link
US (1) US9662952B2 (enExample)
EP (1) EP2964972B1 (enExample)
JP (2) JP6571536B2 (enExample)
DE (1) DE102013003841B4 (enExample)
WO (1) WO2014135183A1 (enExample)

Cited By (11)

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Publication number Priority date Publication date Assignee Title
CN105351431A (zh) * 2015-12-17 2016-02-24 西安科技大学 一种自供能量式车辆减振装置及其控制方法
WO2017002982A1 (ja) * 2015-06-30 2017-01-05 日立オートモティブシステムズ株式会社 シリンダ装置
JP2017015244A (ja) * 2015-06-30 2017-01-19 日立オートモティブシステムズ株式会社 シリンダ装置
WO2017038577A1 (ja) * 2015-08-31 2017-03-09 日立オートモティブシステムズ株式会社 シリンダ装置
WO2017057214A1 (ja) * 2015-09-30 2017-04-06 日立オートモティブシステムズ株式会社 シリンダ装置
CN107407364A (zh) * 2015-09-30 2017-11-28 日立汽车系统株式会社 液压缸装置
KR20180104074A (ko) 2016-02-24 2018-09-19 히다치 오토모티브 시스템즈 가부시키가이샤 실린더 장치 및 그 제조 방법
CN108679151A (zh) * 2018-05-31 2018-10-19 王小莉 一种工业机械减震器结构
JP2019116930A (ja) * 2017-12-27 2019-07-18 日立オートモティブシステムズ株式会社 シリンダ装置
US11073190B2 (en) 2016-12-26 2021-07-27 Hitachi Astemo, Ltd. Cylinder apparatus
US11143264B2 (en) 2017-03-30 2021-10-12 Hitachi Astemo, Ltd. Cylinder apparatus

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DE102015203522A1 (de) * 2015-02-27 2016-09-01 Zf Friedrichshafen Ag Kolbenstangen-Zylinderaggregat mit einem Zwischenrohr
US10508705B2 (en) 2015-05-29 2019-12-17 Hitachi Automotive Systems, Ltd. Vibration damper arrangement
DE112016004236T5 (de) * 2015-09-18 2018-07-19 Hitachi Automotive Systems, Ltd. Zylindereinrichtung
DE102016000849B8 (de) * 2016-01-28 2017-07-13 Hitachi Automotive Systems Europe Gesellschaft mit beschränkter Haftung Schwingungsdämpfer
DE102016206003B4 (de) 2016-04-11 2022-06-02 Volkswagen Aktiengesellschaft Schwingungsdämpfer
CN106051022B (zh) * 2016-05-09 2018-06-26 江苏大学 一种液力忆惯容器装置及其应用
US11007834B2 (en) 2016-12-15 2021-05-18 Tenneco Automotive Operating Company Inc. Baffle tube for damper with electromechanical valve
US10054182B2 (en) 2016-12-15 2018-08-21 Tenneco Automotive Operating Company Inc. Baffle tube for damper with electromechanical valve
CN107061596B (zh) * 2016-12-29 2019-03-12 浙江科力车辆控制系统有限公司 一种悬挂系统中的高度调节阀
EP3382228A1 (en) 2017-03-27 2018-10-03 Hitachi Automotive Systems, Ltd. Pressure tube for use in an electroheological fluid damper and method of manufacturing thereof
WO2018180363A1 (ja) * 2017-03-30 2018-10-04 日立オートモティブシステムズ株式会社 シリンダ装置
US10987988B2 (en) 2017-06-28 2021-04-27 Tenneco Automotive Operating Company Inc. Damper with volume reducing insert
JP2020143674A (ja) * 2017-06-28 2020-09-10 日立オートモティブシステムズ株式会社 シリンダ装置およびシリンダ装置の製造方法
US10704641B2 (en) * 2017-12-15 2020-07-07 Tenneco Automotive Operating Company Inc. Baffle for damper with electromechanical valve
JP6986456B2 (ja) * 2018-01-26 2021-12-22 日立Astemo株式会社 シリンダ装置
JP7019476B2 (ja) * 2018-03-26 2022-02-15 日立Astemo株式会社 ダンパ装置
JP2019173793A (ja) * 2018-03-27 2019-10-10 日立オートモティブシステムズ株式会社 シリンダ装置の製造方法およびシリンダ装置
JP6975688B2 (ja) * 2018-06-27 2021-12-01 日立Astemo株式会社 シリンダ装置
CN108591338B (zh) * 2018-06-27 2020-01-07 江苏大洋环保工程有限公司 一种气和液混动式缓冲器
CN108869622B (zh) * 2018-07-24 2023-05-23 广东机电职业技术学院 一种柱塞式缓冲装置
JP2020045070A (ja) 2018-09-21 2020-03-26 日立オートモティブシステムズ株式会社 車両用作動機構の制御装置
US11454291B2 (en) * 2018-12-28 2022-09-27 Tenneco Automotive Operating Company Inc. Damper with control valves
US11143260B2 (en) * 2018-12-28 2021-10-12 Tenneco Automotive Operating Company Inc. Damper with single external control valve
US11156261B2 (en) 2018-12-28 2021-10-26 Tenneco Automotive Operating Company Inc. Damper with multiple external control valves
JP2020118273A (ja) * 2019-01-28 2020-08-06 日立オートモティブシステムズ株式会社 シリンダ装置
US10837515B2 (en) 2019-02-11 2020-11-17 Tenneco Automotive Operating Company Inc. Damper baffle tube with elastomeric skirt
CN109958734B (zh) * 2019-02-13 2021-06-11 绍兴市亿跃智能科技有限公司 具有导向的活塞杆
US11118649B2 (en) 2019-07-01 2021-09-14 Tenneco Automotive Operating Company Inc. Damper with side collector and external control valves
US11248677B2 (en) 2019-07-18 2022-02-15 Tenneco Automotive Operating Company Inc. Pre-assembled piston accumulator insert device
US11635122B2 (en) 2019-07-18 2023-04-25 Tenneco Automotive Operating Company Inc. Intake device for a damper having a side collector
CN110778635B (zh) * 2019-09-23 2020-10-27 西安交通大学 一种拉伸大于压缩阻尼力的防沉淀磁流变阻尼器
CN111457046B (zh) * 2020-04-26 2021-09-10 江苏大学 一种加速度控制被动实现装置
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DE102020210538A1 (de) * 2020-08-19 2022-02-24 Thyssenkrupp Ag Schwingungsdämpfer und ein Dämpferrohr für einen Schwingungsdämpfer
DE102020214751A1 (de) * 2020-11-24 2022-05-25 Volkswagen Aktiengesellschaft Schwingungsdämpfer mit außenliegenden Steuerventilen
CN112483578A (zh) * 2020-12-14 2021-03-12 湖南联诚轨道装备有限公司 一种用于受电弓的阻尼器
EP4311955A1 (en) * 2022-07-28 2024-01-31 Öhlins Racing AB Damper
WO2024020648A1 (en) * 2022-07-28 2024-02-01 The Dynamic Engineering Solution Pty Ltd Hydraulic damper
DE102022208321A1 (de) * 2022-08-10 2024-02-15 Thyssenkrupp Ag Schwingungsdämpfer für ein Fahrzeug

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