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GB2180320B - Vibration damper with variable damping force - Google Patents

Vibration damper with variable damping force

Info

Publication number
GB2180320B
GB2180320B GB8621460A GB8621460A GB2180320B GB 2180320 B GB2180320 B GB 2180320B GB 8621460 A GB8621460 A GB 8621460A GB 8621460 A GB8621460 A GB 8621460A GB 2180320 B GB2180320 B GB 2180320B
Authority
GB
United Kingdom
Prior art keywords
damping force
vibration damper
variable damping
variable
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.)
Expired
Application number
GB8621460A
Other versions
GB2180320A (en
GB8621460D0 (en
Inventor
Ludwig Axthammer
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.)
ZF Friedrichshafen AG
Original Assignee
Fichtel and Sachs AG
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 Fichtel and Sachs AG filed Critical Fichtel and Sachs AG
Publication of GB8621460D0 publication Critical patent/GB8621460D0/en
Publication of GB2180320A publication Critical patent/GB2180320A/en
Application granted granted Critical
Publication of GB2180320B publication Critical patent/GB2180320B/en
Expired legal-status Critical Current

Links

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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
GB8621460A 1985-09-11 1986-09-05 Vibration damper with variable damping force Expired GB2180320B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853532293 DE3532293C2 (en) 1985-09-11 1985-09-11 Vibration damper with adjustable damping force

Publications (3)

Publication Number Publication Date
GB8621460D0 GB8621460D0 (en) 1986-10-15
GB2180320A GB2180320A (en) 1987-03-25
GB2180320B true GB2180320B (en) 1989-09-06

Family

ID=6280580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8621460A Expired GB2180320B (en) 1985-09-11 1986-09-05 Vibration damper with variable damping force

Country Status (3)

Country Link
DE (1) DE3532293C2 (en)
FR (1) FR2587073B1 (en)
GB (1) GB2180320B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7374028B2 (en) 2003-07-08 2008-05-20 Fox Factory, Inc. Damper with pressure-sensitive compression damping

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604844A1 (en) * 1986-02-15 1987-08-20 Daimler Benz Ag VIBRATION DAMPER FOR VEHICLES
US4872537A (en) * 1988-06-06 1989-10-10 Brian Warner Adjustable damper means for shock absorber
DE3925470C2 (en) * 1988-08-02 1996-04-18 Atsugi Motor Parts Co Ltd Shock absorbers with a damping valve construction with a variable damping characteristic within a wide range
US5277283A (en) * 1988-09-19 1994-01-11 Atsugi Unisia Corporation Variable damping-characteristics shock absorber with adjustable orifice construction variable of fluid flow restriction depending upon fluid pressure difference
GB2225084B (en) * 1988-09-19 1992-09-23 Atsugi Unisia Corp Variable-damping-characteristics shock absorber
DE3924166C1 (en) * 1989-07-21 1991-02-28 Boge Ag, 5208 Eitorf, De Hydraulic vibration damper with valved piston - has changeover control rod with several surface recesses with different widths
US5193655A (en) * 1989-09-20 1993-03-16 Atsugia Unisia Corp. Variable damping force shock absorber with feature of linear and wide range damping force variation depending upon piston stroke speed
JP2578901Y2 (en) * 1989-09-20 1998-08-20 株式会社ユニシアジェックス Variable damping force type hydraulic shock absorber
DE4103356C1 (en) * 1991-02-05 1992-06-17 Boge Ag, 5208 Eitorf, De Hydraulic vibration damper with valved piston - has control body active face of several, angularly-set, individual faces
DE4131532A1 (en) * 1991-09-21 1993-03-25 Fichtel & Sachs Ag ADJUSTABLE SHOCK VALVE BY MEANS OF AN ELECTRORHEOLOGICAL CONTROL MEDIUM FOR A VIBRATION DAMPER
US5911290A (en) * 1997-02-20 1999-06-15 Tenneco Automotive Inc. Step motor actuated continuous variable shock absorber
FR2811729B1 (en) * 2000-07-13 2003-03-14 Peugeot Citroen Automobiles Sa DAMPING DEVICE WITH SIMPLIFIED STRUCTURE
DE20115980U1 (en) 2001-09-28 2001-12-06 PATEC Fahrwerktechnik GmbH, 58640 Iserlohn Hydraulic telescopic damper
DE502004001716D1 (en) * 2003-11-20 2006-11-23 Zahnradfabrik Friedrichshafen Vibration damper with amplitude-dependent damping
DE10360140A1 (en) * 2003-12-20 2005-07-21 Daimlerchrysler Ag Damping device for a motor vehicle
EP1925845B1 (en) * 2006-11-24 2018-10-31 BWI Company Limited S.A. A hydraulic suspension damper
US9494209B1 (en) 2007-06-21 2016-11-15 Bill J. Gartner Regressive hydraulic damper
US9033122B2 (en) 2009-01-07 2015-05-19 Fox Factory, Inc. Method and apparatus for an adjustable damper
US8627932B2 (en) 2009-01-07 2014-01-14 Fox Factory, Inc. Bypass for a suspension damper
US10060499B2 (en) 2009-01-07 2018-08-28 Fox Factory, Inc. Method and apparatus for an adjustable damper
US20100170760A1 (en) 2009-01-07 2010-07-08 John Marking Remotely Operated Bypass for a Suspension Damper
US10047817B2 (en) 2009-01-07 2018-08-14 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11306798B2 (en) 2008-05-09 2022-04-19 Fox Factory, Inc. Position sensitive suspension damping with an active valve
US9452654B2 (en) 2009-01-07 2016-09-27 Fox Factory, Inc. Method and apparatus for an adjustable damper
US8393446B2 (en) 2008-08-25 2013-03-12 David M Haugen Methods and apparatus for suspension lock out and signal generation
US10036443B2 (en) 2009-03-19 2018-07-31 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US9140325B2 (en) 2009-03-19 2015-09-22 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US12491961B2 (en) 2008-11-25 2025-12-09 Fox Factory, Inc. Seat post
US9422018B2 (en) 2008-11-25 2016-08-23 Fox Factory, Inc. Seat post
US11299233B2 (en) 2009-01-07 2022-04-12 Fox Factory, Inc. Method and apparatus for an adjustable damper
US12122205B2 (en) 2009-01-07 2024-10-22 Fox Factory, Inc. Active valve for an internal bypass
US9038791B2 (en) 2009-01-07 2015-05-26 Fox Factory, Inc. Compression isolator for a suspension damper
US10821795B2 (en) 2009-01-07 2020-11-03 Fox Factory, Inc. Method and apparatus for an adjustable damper
US8838335B2 (en) 2011-09-12 2014-09-16 Fox Factory, Inc. Methods and apparatus for suspension set up
US8936139B2 (en) 2009-03-19 2015-01-20 Fox Factory, Inc. Methods and apparatus for suspension adjustment
EP2312180B1 (en) 2009-10-13 2019-09-18 Fox Factory, Inc. Apparatus for controlling a fluid damper
US8672106B2 (en) 2009-10-13 2014-03-18 Fox Factory, Inc. Self-regulating suspension
ITTO20090943A1 (en) * 2009-12-01 2011-06-02 Sistemi Sospensioni Spa PASSIVE DAMPER WITH VARIABLE DAMPING, PARTICULARLY FOR VEHICLE SUSPENSION
US10697514B2 (en) 2010-01-20 2020-06-30 Fox Factory, Inc. Remotely operated bypass for a suspension damper
EP3778358B1 (en) 2010-07-02 2023-04-12 Fox Factory, Inc. Positive lock adjustable seat post
EP2530355B1 (en) 2011-05-31 2019-09-04 Fox Factory, Inc. Apparatus for position sensitive and/or adjustable suspension damping
US11279199B2 (en) 2012-01-25 2022-03-22 Fox Factory, Inc. Suspension damper with by-pass valves
US10330171B2 (en) 2012-05-10 2019-06-25 Fox Factory, Inc. Method and apparatus for an adjustable damper
DE102015204993B4 (en) * 2015-03-19 2021-11-18 Zf Friedrichshafen Ag Short damping valve device
US10737546B2 (en) 2016-04-08 2020-08-11 Fox Factory, Inc. Electronic compression and rebound control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2111168A (en) * 1981-11-06 1983-06-29 Tokico Ltd Hydraulic damper with bypass
GB2120355A (en) * 1982-05-20 1983-11-30 Atsugi Motor Parts Co Ltd Variable-damping-force shock absorber
GB2123922A (en) * 1982-06-15 1984-02-08 Tokico Ltd Hydraulic damper with adjustable flow path
GB2126687A (en) * 1982-07-14 1984-03-28 Tokico Ltd Hydraulic damper with adjustable damping force
GB2143390A (en) * 1983-05-20 1985-02-06 Tokico Ltd Hydraulic shock absorber
EP0135902A2 (en) * 1983-09-17 1985-04-03 Nissan Motor Co., Ltd. Pitching-suppressive control system and method for an automotive vehicle suspension

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088803A5 (en) * 1970-04-24 1972-01-07 Citroen Sa
JPS6069711U (en) * 1983-10-20 1985-05-17 トキコ株式会社 Damping force adjustable hydraulic shock absorber
DE8421106U1 (en) * 1984-06-09 1987-07-02 Boge Gmbh, 5208 Eitorf Adjustable hydraulic shock absorber
DE3421601A1 (en) * 1984-06-09 1985-12-19 Boge Gmbh, 5208 Eitorf Adjustable hydraulic shock absorber
DE3446133A1 (en) * 1984-12-18 1986-06-19 Fichtel & Sachs Ag, 8720 Schweinfurt VIBRATION DAMPER WITH VARIABLE DAMPING FORCE
DE3518327A1 (en) * 1985-05-22 1986-11-27 Boge Gmbh, 5208 Eitorf HYDRAULIC, ADJUSTABLE VIBRATION DAMPER

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2111168A (en) * 1981-11-06 1983-06-29 Tokico Ltd Hydraulic damper with bypass
GB2120355A (en) * 1982-05-20 1983-11-30 Atsugi Motor Parts Co Ltd Variable-damping-force shock absorber
GB2123922A (en) * 1982-06-15 1984-02-08 Tokico Ltd Hydraulic damper with adjustable flow path
GB2126687A (en) * 1982-07-14 1984-03-28 Tokico Ltd Hydraulic damper with adjustable damping force
GB2143390A (en) * 1983-05-20 1985-02-06 Tokico Ltd Hydraulic shock absorber
EP0135902A2 (en) * 1983-09-17 1985-04-03 Nissan Motor Co., Ltd. Pitching-suppressive control system and method for an automotive vehicle suspension

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7374028B2 (en) 2003-07-08 2008-05-20 Fox Factory, Inc. Damper with pressure-sensitive compression damping
US9103401B2 (en) 2003-07-08 2015-08-11 Fox Factory, Inc. Damper with pressure-sensitive compression damping

Also Published As

Publication number Publication date
FR2587073A1 (en) 1987-03-13
DE3532293C2 (en) 1994-09-22
FR2587073B1 (en) 1994-03-18
GB2180320A (en) 1987-03-25
GB8621460D0 (en) 1986-10-15
DE3532293A1 (en) 1987-03-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960905