CN108253073A - 具有液压压缩止动装置的液压阻尼器 - Google Patents
具有液压压缩止动装置的液压阻尼器 Download PDFInfo
- Publication number
- CN108253073A CN108253073A CN201810014747.0A CN201810014747A CN108253073A CN 108253073 A CN108253073 A CN 108253073A CN 201810014747 A CN201810014747 A CN 201810014747A CN 108253073 A CN108253073 A CN 108253073A
- Authority
- CN
- China
- Prior art keywords
- insertion piece
- fixing component
- hydraulic
- chamber
- hydraulic damper
- 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.)
- Granted
Links
- 230000006835 compression Effects 0.000 title claims abstract description 111
- 238000007906 compression Methods 0.000 title claims abstract description 111
- 238000003780 insertion Methods 0.000 claims abstract description 62
- 230000037431 insertion Effects 0.000 claims abstract description 62
- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims description 39
- 239000004606 Fillers/Extenders Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims 2
- 239000002861 polymer material Substances 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 1
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- 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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
-
- 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
-
- 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
- F16F9/165—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 two or more cylinders in line, i.e. in series connection
-
- 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
- F16F9/3465—Slots having a variable section along their length
-
- 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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of 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
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/41—Dampers
-
- 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
-
- 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
- B60G2500/11—Damping valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/16—Running
- B60G2800/162—Reducing road induced vibrations
-
- 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
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
-
- 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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
-
- 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
- F16F2230/0005—Attachment, e.g. to facilitate mounting onto confer adjustability
-
- 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
- F16F2230/0023—Purpose; Design features protective
-
- 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
- F16F2230/0082—Dimensional tolerances, e.g. play between mechanical elements
-
- 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
- F16F2230/42—Multiple pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762454094P | 2017-02-03 | 2017-02-03 | |
US62/454,094 | 2017-02-03 | ||
US15/856,322 US10527122B2 (en) | 2017-02-03 | 2017-12-28 | Hydraulic damper with a hydraulic compression stop arrangement |
US15/856,322 | 2017-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108253073A true CN108253073A (zh) | 2018-07-06 |
CN108253073B CN108253073B (zh) | 2019-12-27 |
Family
ID=61132111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810014747.0A Active CN108253073B (zh) | 2017-02-03 | 2018-01-08 | 液压阻尼器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10527122B2 (zh) |
EP (1) | EP3358213B1 (zh) |
CN (1) | CN108253073B (zh) |
ES (1) | ES2770142T3 (zh) |
PL (1) | PL3358213T3 (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111765194A (zh) * | 2020-06-24 | 2020-10-13 | 北京京西重工有限公司 | 液压阻尼器组件 |
CN112161015A (zh) * | 2020-10-28 | 2021-01-01 | 北京京西重工有限公司 | 液压阻尼器组件和用于液压阻尼器组件的附加活塞 |
US11320017B2 (en) | 2020-01-06 | 2022-05-03 | Beijingwest Industries Co., Ltd. | Shock absorber assembly |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800003215A1 (it) * | 2018-03-02 | 2019-09-02 | Sistemi Sospensioni Spa | Ammortizzatore idraulico, particolarmente per sospensione di veicolo, con doppia valvola di compressione. |
US10603974B2 (en) * | 2018-04-24 | 2020-03-31 | Beijingwest Industries Co., Ltd. | Hydraulic damper with a hydraulic stop arrangement |
US10876591B2 (en) | 2019-02-13 | 2020-12-29 | Tenneco Automotive Operating Company Inc. | Damper hydraulic compression stop cup |
DE102019206510A1 (de) * | 2019-05-07 | 2020-11-12 | Zf Friedrichshafen Ag | Schwingungsdämpfer mit einem hydraulischen Druckanschlag |
CN113840990B (zh) | 2019-05-13 | 2023-10-10 | 天纳克汽车经营有限公司 | 具有偏置活塞的液压压缩止动件 |
US11181161B2 (en) | 2019-09-23 | 2021-11-23 | DRiV Automotive Inc. | Shock absorber base valve assembly |
US11187298B2 (en) | 2019-11-01 | 2021-11-30 | DRiV Automotive Inc. | Extension assembly for damper |
CN112483576B (zh) | 2019-12-27 | 2022-04-22 | 北京京西重工有限公司 | 液压阻尼器组件 |
CN112377553B (zh) * | 2020-02-25 | 2022-03-29 | 北京京西重工有限公司 | 阻尼器组件和用于其的壳体 |
EP3933226A1 (en) * | 2020-06-24 | 2022-01-05 | BeijingWest Industries Co. Ltd. | Hydraulic damper assembly including a hydraulic compression stop |
DE102020209847A1 (de) | 2020-08-05 | 2022-02-10 | Zf Friedrichshafen Ag | Schwingungsdämpfer mit einem hydraulischen Druckanschlag |
DE102021201221A1 (de) | 2021-02-09 | 2022-08-11 | Suspa Gmbh | Baugruppe für eine fluidgefüllte Kolben-Zylinder-Einheit sowie fluidgefüllte Kolben-Zylinder-Einheit mit einer derartigen Baugruppe |
DE102021203894A1 (de) | 2021-04-20 | 2022-10-20 | Zf Friedrichshafen Ag | Schwingungsdämpfer mit einem hydraulischen Druckanschlag |
DE102021203895A1 (de) | 2021-04-20 | 2022-10-20 | Zf Friedrichshafen Ag | Schwingungsdämpfer mit einem hydraulischen Druckanschlag |
CN114517819B (zh) * | 2022-02-08 | 2023-07-25 | 北京京西重工有限公司 | 单管阻尼器组件和用于其的液压回弹止动组件 |
EP4421347A1 (en) * | 2023-02-22 | 2024-08-28 | BeijingWest Industries Co. Ltd. | Double chamfered hydraulic compression stop sleeve |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101134488A (zh) * | 2006-08-29 | 2008-03-05 | 株式会社昭和 | 前叉 |
FR3004501A1 (fr) * | 2013-04-16 | 2014-10-17 | Peugeot Citroen Automobiles Sa | Dispositif amortisseur hydraulique pour amortir des oscillations dans une suspension de vehicule |
JP2016003675A (ja) * | 2014-06-13 | 2016-01-12 | ヤマハモーターハイドロリックシステム株式会社 | 単筒式油圧緩衝器 |
CN107429774A (zh) * | 2015-02-06 | 2017-12-01 | 天纳克汽车营运公司 | 用于减振器的次级阻尼组件 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2783859A (en) | 1954-12-16 | 1957-03-05 | Gabriel Co | Shock absorber with compression stop |
US2907414A (en) | 1956-06-06 | 1959-10-06 | Gabriel Co | Shock absorber with hydraulic compression stops |
US2984321A (en) * | 1959-11-20 | 1961-05-16 | Gen Motors Corp | Hydraulic shock absorber with compression cut-off |
US3150747A (en) | 1961-06-30 | 1964-09-29 | Ford Motor Co | Hyraulic shock absorber having hydraulic stop means |
US3175645A (en) | 1962-09-13 | 1965-03-30 | Stabilus Ind Handels Gmbh | Shock absorber with primary and secondary damping chambers |
GB1132038A (en) * | 1966-03-17 | 1968-10-30 | Woodhead Mfg Company Ltd | Vibration dampers |
DE19829765A1 (de) | 1997-08-12 | 1999-02-18 | Mannesmann Sachs Ag | Kolben-Zylinderaggregat mit einem hydraulisch-mechanischen Anschlag |
SE515321C2 (sv) | 1998-12-02 | 2001-07-16 | Oehlins Racing Ab | Stötdämpare med cylinder innefattande en kolvstång med minst två kolvar |
CN107208726B (zh) | 2015-02-03 | 2019-10-01 | 天纳克汽车营运公司 | 用于减振器的次级阻尼组件 |
MA42588B1 (fr) | 2015-03-16 | 2020-05-29 | Sistemi Sospensioni Spa | Élément d'arrêt de compression hydraulique pour un amortisseur de choc hydraulique pour suspension de véhicule |
-
2017
- 2017-12-28 US US15/856,322 patent/US10527122B2/en active Active
-
2018
- 2018-01-08 CN CN201810014747.0A patent/CN108253073B/zh active Active
- 2018-01-31 PL PL18154364T patent/PL3358213T3/pl unknown
- 2018-01-31 EP EP18154364.6A patent/EP3358213B1/en active Active
- 2018-01-31 ES ES18154364T patent/ES2770142T3/es active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101134488A (zh) * | 2006-08-29 | 2008-03-05 | 株式会社昭和 | 前叉 |
FR3004501A1 (fr) * | 2013-04-16 | 2014-10-17 | Peugeot Citroen Automobiles Sa | Dispositif amortisseur hydraulique pour amortir des oscillations dans une suspension de vehicule |
JP2016003675A (ja) * | 2014-06-13 | 2016-01-12 | ヤマハモーターハイドロリックシステム株式会社 | 単筒式油圧緩衝器 |
CN107429774A (zh) * | 2015-02-06 | 2017-12-01 | 天纳克汽车营运公司 | 用于减振器的次级阻尼组件 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11320017B2 (en) | 2020-01-06 | 2022-05-03 | Beijingwest Industries Co., Ltd. | Shock absorber assembly |
CN111765194A (zh) * | 2020-06-24 | 2020-10-13 | 北京京西重工有限公司 | 液压阻尼器组件 |
CN111765194B (zh) * | 2020-06-24 | 2021-12-07 | 北京京西重工有限公司 | 液压阻尼器组件 |
US11668367B2 (en) | 2020-06-24 | 2023-06-06 | Beijingwest Industries Co., Ltd | Hydraulic damper assembly including a hydraulic compression stop |
CN112161015A (zh) * | 2020-10-28 | 2021-01-01 | 北京京西重工有限公司 | 液压阻尼器组件和用于液压阻尼器组件的附加活塞 |
US11732771B2 (en) | 2020-10-28 | 2023-08-22 | Beijingwest Industries Co., Ltd. | Hydraulic damper assembly and a piston for a hydraulic damper assembly |
Also Published As
Publication number | Publication date |
---|---|
EP3358213B1 (en) | 2019-11-06 |
EP3358213A1 (en) | 2018-08-08 |
PL3358213T3 (pl) | 2020-06-01 |
CN108253073B (zh) | 2019-12-27 |
ES2770142T3 (es) | 2020-06-30 |
US10527122B2 (en) | 2020-01-07 |
US20180223942A1 (en) | 2018-08-09 |
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Denomination of invention: Hydraulic damper Effective date of registration: 20230517 Granted publication date: 20191227 Pledgee: Jingxi Zhixing Zhangjiakou Automotive Electronics Co.,Ltd. Pledgor: BEIJINGWEST INDUSTRIES Co.,Ltd. Registration number: Y2023990000256 |
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Granted publication date: 20191227 Pledgee: Jingxi Zhixing Zhangjiakou Automotive Electronics Co.,Ltd. Pledgor: BEIJINGWEST INDUSTRIES Co.,Ltd. Registration number: Y2023990000256 |