DE102011012730B4 - Stoßdämpfer - Google Patents

Stoßdämpfer Download PDF

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Publication number
DE102011012730B4
DE102011012730B4 DE102011012730.5A DE102011012730A DE102011012730B4 DE 102011012730 B4 DE102011012730 B4 DE 102011012730B4 DE 102011012730 A DE102011012730 A DE 102011012730A DE 102011012730 B4 DE102011012730 B4 DE 102011012730B4
Authority
DE
Germany
Prior art keywords
free piston
piston
surface portion
housing
ring
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.)
Active
Application number
DE102011012730.5A
Other languages
German (de)
English (en)
Other versions
DE102011012730A1 (de
Inventor
Atsushi Maeda
Masaru Kouyama
Mikio Yamashita
Fumiyuki Yamaoka
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.)
Hitachi Astemo Ltd
Original Assignee
Hitachi Automotive Systems Ltd
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
Priority claimed from JP2010267390A external-priority patent/JP5639865B2/ja
Priority claimed from JP2010291644A external-priority patent/JP5809801B2/ja
Application filed by Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Publication of DE102011012730A1 publication Critical patent/DE102011012730A1/de
Application granted granted Critical
Publication of DE102011012730B4 publication Critical patent/DE102011012730B4/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/368—Sealings in pistons
    • 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
    • F16F9/19—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 with a single cylinder and of single-tube type
    • 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
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3214—Constructional features of pistons
    • 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
    • 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
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve 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
    • F16F2224/00—Materials; Material properties
    • F16F2224/04—Fluids
    • 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
    • F16F2230/36—Holes, slots or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Damping Devices (AREA)
DE102011012730.5A 2010-03-02 2011-03-01 Stoßdämpfer Active DE102011012730B4 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2010045727 2010-03-02
JP2010-045727 2010-03-02
JP2010267390A JP5639865B2 (ja) 2010-03-02 2010-11-30 緩衝器
JP2010-267390 2010-11-30
JP2010291644A JP5809801B2 (ja) 2010-12-28 2010-12-28 緩衝器
JP2010-291644 2010-12-28

Publications (2)

Publication Number Publication Date
DE102011012730A1 DE102011012730A1 (de) 2012-01-05
DE102011012730B4 true DE102011012730B4 (de) 2021-04-29

Family

ID=44952452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102011012730.5A Active DE102011012730B4 (de) 2010-03-02 2011-03-01 Stoßdämpfer

Country Status (3)

Country Link
KR (1) KR101822194B1 (zh)
CN (2) CN104315063B (zh)
DE (1) DE102011012730B4 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6027451B2 (ja) 2013-01-25 2016-11-16 Ｋｙｂ株式会社 緩衝装置
DE102013008884A1 (de) * 2013-05-27 2014-08-28 Thyssenkrupp Bilstein Gmbh Schwingungsdämpfer für ein Fahrzeug
DE102016223486A1 (de) * 2016-01-27 2017-07-27 Suspa Gmbh Fluidgefüllte Kolben-Zylinder-Einheit
DE102016217117A1 (de) 2016-09-08 2016-12-01 Zf Friedrichshafen Ag Frequenzselektive Dämpfventilanordnung
JP2018048719A (ja) * 2016-09-23 2018-03-29 Ｋｙｂ株式会社 緩衝器
MX2020000551A (es) * 2017-07-26 2020-09-10 Hitachi Astemo Ltd Amortiguador y metodo de fabricacion del mismo.
CN107237852B (zh) * 2017-08-08 2022-07-12 台州九桔科技股份有限公司 一种减震器
CN111322344A (zh) * 2020-04-26 2020-06-23 中国工程物理研究院总体工程研究所 一种适用于导向跌落试验的渐变节流式缓冲装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036613A1 (de) * 1989-11-16 1991-05-23 Atsugi Unisia Corp Stossdaempfer mit veraenderlicher daempfungskraft, die in abhaengigkeit von der schwingungsart einer fahrzeugkarosserie automatisch gewaehlt wird
US5248014A (en) * 1990-10-19 1993-09-28 Tokico Ltd. Hydraulic shock absorber
JPH0719642U (ja) * 1993-09-09 1995-04-07 株式会社ユニシアジェックス 車両用緩衝装置
JP2006336816A (ja) * 2005-06-06 2006-12-14 Kayaba Ind Co Ltd 緩衝装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768627A (en) * 1987-01-23 1988-09-06 Tayco Developments, Inc. Frictionless hydraulic damper and damper-snubber
JP3354212B2 (ja) 1993-06-30 2002-12-09 三洋電機株式会社 吸収冷温水機
JP3242214B2 (ja) 1993-07-05 2001-12-25 東芝キヤリア株式会社 冷媒加熱式空気調和機
JPH0777233A (ja) 1993-09-09 1995-03-20 Tokico Ltd 減衰力調整式油圧緩衝器
US6220409B1 (en) * 1999-05-06 2001-04-24 Tenneco Automotive Inc. Stroke dependent bypass
DE10051971C1 (de) * 2000-10-20 2002-03-28 Krupp Bilstein Gmbh Arbeitskolben für einen hydraulischen Stoßdämpfer und Verfahren zu seiner Hers tellung
US6918473B2 (en) * 2003-09-17 2005-07-19 Tenneco Automotive Operating Company Inc. Stroke dependent bypass
JP4753238B2 (ja) * 2005-09-09 2011-08-24 ヤマハ発動機株式会社 油圧緩衝器
JP4909570B2 (ja) * 2005-11-08 2012-04-04 カヤバ工業株式会社 単筒型液圧緩衝器
CN101074713A (zh) * 2006-05-17 2007-11-21 株式会社三友交易 液压减震器
ITTO20070908A1 (it) * 2007-12-18 2009-06-19 Vhit Spa Valvola di bilanciamento della frenatura, per un trattore agricolo o veicolo similare
JP2009243530A (ja) * 2008-03-28 2009-10-22 Hitachi Ltd 流体圧緩衝器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036613A1 (de) * 1989-11-16 1991-05-23 Atsugi Unisia Corp Stossdaempfer mit veraenderlicher daempfungskraft, die in abhaengigkeit von der schwingungsart einer fahrzeugkarosserie automatisch gewaehlt wird
US5248014A (en) * 1990-10-19 1993-09-28 Tokico Ltd. Hydraulic shock absorber
JPH0719642U (ja) * 1993-09-09 1995-04-07 株式会社ユニシアジェックス 車両用緩衝装置
JP2006336816A (ja) * 2005-06-06 2006-12-14 Kayaba Ind Co Ltd 緩衝装置

Also Published As

Publication number Publication date
DE102011012730A1 (de) 2012-01-05
KR20110099659A (ko) 2011-09-08
KR101822194B1 (ko) 2018-01-25
CN104315063A (zh) 2015-01-28
CN104315063B (zh) 2017-10-24
CN104315066A (zh) 2015-01-28
CN104315066B (zh) 2016-12-07

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R012 Request for examination validly filed
R016 Response to examination communication
R018 Grant decision by examination section/examining division
R081 Change of applicant/patentee

Owner name: HITACHI ASTEMO, LTD., HITACHINAKA-SHI, JP

Free format text: FORMER OWNER: HITACHI AUTOMOTIVE SYSTEMS, LTD., HITACHINAKA-SHI, IBARAKI-KEN, JP

R020 Patent grant now final