JP6688899B2 - 緩衝器 - Google Patents
緩衝器 Download PDFInfo
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- JP6688899B2 JP6688899B2 JP2018542585A JP2018542585A JP6688899B2 JP 6688899 B2 JP6688899 B2 JP 6688899B2 JP 2018542585 A JP2018542585 A JP 2018542585A JP 2018542585 A JP2018542585 A JP 2018542585A JP 6688899 B2 JP6688899 B2 JP 6688899B2
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- Prior art keywords
- valve
- passage
- piston
- chamber
- damping force
- 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.)
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- 230000035939 shock Effects 0.000 title claims description 54
- 239000006096 absorbing agent Substances 0.000 title claims description 53
- 238000013016 damping Methods 0.000 claims description 199
- 230000007246 mechanism Effects 0.000 claims description 105
- 230000002093 peripheral effect Effects 0.000 claims description 78
- 239000012530 fluid Substances 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 description 73
- 239000007788 liquid Substances 0.000 description 67
- 230000008602 contraction Effects 0.000 description 14
- 230000008859 change Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 8
- 230000001052 transient effect Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000004323 axial length Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
-
- 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
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
-
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
-
- 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
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/10—Damping action or damper
- B60G2500/11—Damping valves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
本願は、2016年9月27日に、日本に出願された特願2016−188037号に基づき優先権を主張し、その内容をここに援用する。
本発明の第1実施形態を図1から図7に基づいて説明する。なお、以下の説明においては、説明の便宜上、図面における上側を「上」とし、図面における下側を「下」として説明する。
次に、本発明の緩衝器の第2実施形態を、主に図8に基づいて第1実施形態との相違部分を中心に説明する。なお、第1実施形態と共通する部位については、同一称呼、同一の符号で表す。
次に、本発明の緩衝器の第3実施形態を、主に図9に基づいて第1実施形態との相違部分を中心に説明する。なお、第1実施形態と共通する部位については、同一称呼、同一の符号で表す。
2 シリンダ
18 ピストン
19 上室(第1の室)
20 下室(第2の室)
21,21A ピストンロッド
38 通路(第1通路)
41 減衰力発生機構
52 パイロットバルブ
55 パイロットケース
73 外側円筒状部(円筒状部)
80 背圧室
86 シール部材
134,134B 区画ディスク(第3バルブ)
140,140B ハウジング
156,156B 弾性シール部材
171,171B,172,172B 可変室
213 ディスク(第2バルブ)
221 当接バルブ(第1バルブ)
231 減衰バルブ
235,235A 背圧室流入通路
241,241B 分岐通路(第2通路)
Claims (3)
- 作動流体が封入されたシリンダと、
前記シリンダ内に摺動可能に嵌装され、前記シリンダ内を第1の室と第2の室との2室に区画するピストンと、
前記ピストンに連結されると共に前記シリンダの外部に延出されたピストンロッドと、
前記ピストンに設けられ、前記ピストンの移動により前記第1の室から前記作動流体が流れ出す第1通路と、
前記第1通路に設けられて前記ピストンの摺動によって生じる前記作動流体の流れを抑制して減衰力を発生させる減衰バルブおよび前記減衰バルブに閉弁方向に内圧を作用させる背圧室を備えた減衰力発生機構と、
前記第1通路から前記背圧室に前記作動流体を導入する背圧室流入通路と、
を備え、
前記減衰バルブは、
前記ピストンに形成された前記第1通路の開口を開閉し、前記ピストンに当接する第1バルブと、
前記第1バルブよりも外径が小径で、前記第1バルブの開弁側に設けられた第2バルブと、
外周部に環状のシール部材を有し、円筒状部を含むパイロットケースの前記円筒状部に前記シール部材を摺動可能かつ密に嵌合させて前記背圧室を形成するパイロットバルブと、を有し、
前記第1通路から前記背圧室までのいずれかの箇所から分岐した第2通路と、
前記第2通路に設けられ、内側に前記ピストンロッドが配置されたハウジングと、
内周側または外周側が支持され、非支持側に前記ハウジングとの間または前記ピストンロッドとの間をシールする環状の弾性シール部材が設けられ、撓み可能な環状の第3バルブと、
前記第3バルブにより画成されて設けられた前記ハウジング内の2つの室と、を有し、
前記第3バルブが前記第2通路の前記第1の室側への流通および前記第2の室側への流通の少なくとも一方向の流通を遮断する緩衝器。 - 前記第2バルブは、前記第1バルブと外径が同径の同径部と、前記同径部よりも外径が小径の小径部とからなり、前記第2バルブの前記同径部と前記小径部とにより、前記第1
バルブは段階的に開弁する請求項1に記載の緩衝器。 - 前記背圧室流入通路は、前記ピストンロッドの外周部に、通路溝の一部を切り欠いて形成される切欠部を用いる請求項1または請求項2に記載の緩衝器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016188037 | 2016-09-27 | ||
JP2016188037 | 2016-09-27 | ||
PCT/JP2017/034687 WO2018062150A1 (ja) | 2016-09-27 | 2017-09-26 | 緩衝器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2018062150A1 JPWO2018062150A1 (ja) | 2019-06-24 |
JP6688899B2 true JP6688899B2 (ja) | 2020-04-28 |
Family
ID=61760752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018542585A Active JP6688899B2 (ja) | 2016-09-27 | 2017-09-26 | 緩衝器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10995813B2 (ja) |
JP (1) | JP6688899B2 (ja) |
KR (1) | KR102159890B1 (ja) |
CN (1) | CN109790900B (ja) |
DE (1) | DE112017004850T5 (ja) |
WO (1) | WO2018062150A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7038613B2 (ja) * | 2018-06-27 | 2022-03-18 | 日立Astemo株式会社 | 緩衝器 |
JP7055076B2 (ja) * | 2018-07-24 | 2022-04-15 | 日立Astemo株式会社 | 緩衝器 |
BR112021012377A2 (pt) * | 2018-12-25 | 2021-09-08 | Hitachi Astemo, Ltd. | Amortecedor |
DE102019201360A1 (de) * | 2019-02-04 | 2020-08-06 | Zf Friedrichshafen Ag | Frequenzselektive Dämpfventileinrichtung |
EP4127508A1 (en) * | 2020-03-27 | 2023-02-08 | DRiV Automotive Inc. | Damper assembly |
JP7378634B2 (ja) | 2020-10-09 | 2023-11-13 | 日立Astemo株式会社 | 緩衝器 |
CN112984023B (zh) * | 2021-02-04 | 2022-07-08 | 大连科技学院 | 一种双级伸张阀减振器活塞 |
US11808323B2 (en) * | 2021-02-15 | 2023-11-07 | DRiV Automotive Inc. | Open bleed-base valve |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2839252B2 (ja) | 1987-11-19 | 1998-12-16 | 株式会社ユニシアジェックス | 液圧緩衝器 |
JPH03113139A (ja) * | 1989-09-25 | 1991-05-14 | Tokico Ltd | 油圧緩衝器 |
US5325942A (en) * | 1991-03-14 | 1994-07-05 | Monroe Auto Equipment Company | Tunable hydraulic valve for shock absorber |
US5706919A (en) * | 1996-07-29 | 1998-01-13 | General Motors Corporation | Alternating state pressure regulation valved damper |
FR2772447A1 (fr) | 1997-12-11 | 1999-06-18 | Toyota Motor Co Ltd | Amortisseur comportant une soupape bidirectionnelle et un passage de limitation d'ecoulement parallele a la soupape |
JPH11218176A (ja) * | 1998-01-29 | 1999-08-10 | Toyota Motor Corp | ショックアブソーバおよびリーフバルブ |
US6340081B1 (en) * | 2000-06-23 | 2002-01-22 | Tenneco Automotive Inc. | Shock absorber having ported plate low speed tunability |
US6668986B2 (en) * | 2002-01-08 | 2003-12-30 | Delphi Technologies, Inc. | Active hydraulic fluid vehicular suspension damper |
JP2004257507A (ja) * | 2003-02-27 | 2004-09-16 | Tokico Ltd | 油圧緩衝器 |
JP4453000B2 (ja) | 2004-05-31 | 2010-04-21 | 日立オートモティブシステムズ株式会社 | 油圧緩衝器 |
JP4318080B2 (ja) | 2004-06-07 | 2009-08-19 | 株式会社日立製作所 | 油圧緩衝器 |
JP4356016B2 (ja) * | 2004-07-27 | 2009-11-04 | 株式会社日立製作所 | 油圧緩衝器 |
JP5034074B2 (ja) * | 2007-03-30 | 2012-09-26 | 日立オートモティブシステムズ株式会社 | 減衰力調整式流体圧緩衝器 |
SE531694C2 (sv) * | 2007-12-19 | 2009-07-07 | Oehlins Racing Ab | Stötdämpare med dubbelkolv |
DE102009038818A1 (de) * | 2009-08-25 | 2011-03-03 | Thyssenkrupp Bilstein Suspension Gmbh | Kraftfahrzeugstoßdämpfer |
JP2011158019A (ja) * | 2010-01-29 | 2011-08-18 | Hitachi Automotive Systems Ltd | 緩衝器 |
JP5639865B2 (ja) | 2010-03-02 | 2014-12-10 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
US8739948B2 (en) * | 2011-02-04 | 2014-06-03 | Tenneco Automotive Operating Company Inc. | Support washer for shock absorber valve with blow-off tunability |
DE102012102828B4 (de) * | 2012-04-02 | 2019-07-11 | Stabilus Gmbh | Verstelleinrichtung |
JP5787961B2 (ja) * | 2013-10-31 | 2015-09-30 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
WO2015080056A1 (ja) * | 2013-11-29 | 2015-06-04 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP5970569B2 (ja) * | 2015-02-04 | 2016-08-17 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
JP6512695B2 (ja) | 2015-03-30 | 2019-05-15 | ヴィオニア日信ブレーキシステムジャパン株式会社 | ブレーキシステム |
WO2017047661A1 (ja) | 2015-09-14 | 2017-03-23 | 日立オートモティブシステムズ株式会社 | 緩衝器 |
US9845839B2 (en) * | 2016-02-18 | 2017-12-19 | Tenneco Automotive Operating Company Inc. | Shock absorber having check disc for orifice passage |
-
2017
- 2017-09-26 KR KR1020197006944A patent/KR102159890B1/ko active IP Right Grant
- 2017-09-26 CN CN201780059744.2A patent/CN109790900B/zh active Active
- 2017-09-26 DE DE112017004850.8T patent/DE112017004850T5/de active Pending
- 2017-09-26 WO PCT/JP2017/034687 patent/WO2018062150A1/ja active Application Filing
- 2017-09-26 US US16/334,101 patent/US10995813B2/en active Active
- 2017-09-26 JP JP2018542585A patent/JP6688899B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
CN109790900B (zh) | 2021-04-23 |
US10995813B2 (en) | 2021-05-04 |
JPWO2018062150A1 (ja) | 2019-06-24 |
CN109790900A (zh) | 2019-05-21 |
DE112017004850T5 (de) | 2019-06-13 |
US20190368569A1 (en) | 2019-12-05 |
KR102159890B1 (ko) | 2020-09-24 |
WO2018062150A1 (ja) | 2018-04-05 |
KR20190035883A (ko) | 2019-04-03 |
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