GB1185074A - Improvements in or relating to Oscillation Dampers - Google Patents

Improvements in or relating to Oscillation Dampers

Info

Publication number
GB1185074A
GB1185074A GB1697767A GB1697767A GB1185074A GB 1185074 A GB1185074 A GB 1185074A GB 1697767 A GB1697767 A GB 1697767A GB 1697767 A GB1697767 A GB 1697767A GB 1185074 A GB1185074 A GB 1185074A
Authority
GB
United Kingdom
Prior art keywords
housing
valve
diaphragm
piston
space
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
GB1697767A
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 GB1185074A publication Critical patent/GB1185074A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16F9/44—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
    • 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
    • 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
    • F16F2230/18—Control arrangements
    • F16F2230/183—Control arrangements fluid actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

1,185,074. Oscillation dampers. FICHTEL & SACHS AG. 13 April, 1967 [16 April, 1966], No. 16977/67. Heading F2S. An oscillation damper, particularly for motor vehicles, whose damping action is variable in dependence on the loading of an associated pneumatic, or hydropneumatic, springing element not shown, comprises a piston and cylinder hydraulic damper 1, 2, 4, e.g. with a liquidgas compensating chamber 11 and two-way valves 5, 8 respectively in the piston 4 and a bottom plate 6, and a by-pass passage which is controlled by a valve 17 in a regulating housing 15, the pressure prevailing in the springing element being introduced into a control space 28 in the housing 15 through a pipe 25 and the control space pressure acting on the valve 17 through a diaphragm clamped at its periphery to the housing 15. As shown, two diaphragms 18, spaced by a distance piece 19, are clamped, with the interposition of a ring 22 with a vent 23, to the housing 15 by an end cover plate 24 the inner diaphragm 18 being connected to the valve 17 which has a conical portion 20 adapted to seat on one end of a valve bore 16 the other end of the valve 17 being guided in the bore 16, carrying a compensation diaphragm 21 with a guide pin, and being urged in an opening direction, against the pressure prevailing in the control space 28, by a spring 26. The counter force of the spring 26 can be adjusted so that the valve 17 closes when the vehicle is fully laden. The by-pass passage comprises a port 12 in a piston-rod guide 7 and which is connected to the valve bore 16 in the housing 15 by a tube 13, the housing 15 having a connection with the compensating chamber 11. The hydraulic pressure of the latter acts equally in opposite directions on the compensation diaphragm 21 and the inner diaphragm 18. In a modification, Figs. 3, 4, not shown, the valve (17) in the regulating housing (15) is located between the working space (10) and the compensating chamber (11), the recess (33) in the housing (15) and the space below the bottom plate (6) being connected to the compensation space (11) through ports (32) in the housing (15) and the port 12 and tube 13, Fig. 1, being omitted. The cone portion of the valve is replaced by a cylindrical portion (30) having longitudinal grooves of varying depth. In this arrangement the by-pass throttle is only operative when the piston travels into the cylinder.
GB1697767A 1966-04-16 1967-04-13 Improvements in or relating to Oscillation Dampers Expired GB1185074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0048953 1966-04-16

Publications (1)

Publication Number Publication Date
GB1185074A true GB1185074A (en) 1970-03-18

Family

ID=7102597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1697767A Expired GB1185074A (en) 1966-04-16 1967-04-13 Improvements in or relating to Oscillation Dampers

Country Status (4)

Country Link
BE (1) BE696971A (en)
DE (1) DE1555311A1 (en)
FR (1) FR1529716A (en)
GB (1) GB1185074A (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231739A1 (en) * 1982-08-26 1984-03-01 Fichtel & Sachs Ag, 8720 Schweinfurt TWO TUBE VIBRATION DAMPER OR SHOCK ABSORBER WITH VARIABLE DAMPING FORCE
FR2564549A1 (en) * 1984-05-17 1985-11-22 Boge Gmbh ADJUSTABLE HYDRAULIC SHOCK ABSORBER
EP0280824A1 (en) * 1987-03-02 1988-09-07 Jimecal Damper for a vehicle having air suspension, especially for a heavy vehicle
GB2222863A (en) * 1988-08-11 1990-03-21 Teves Gmbh Alfred Controllable hydraulic vibration damper for automotive vehicles
GB2326925A (en) * 1997-02-21 1999-01-06 Tenneco Automotive Inc Load-adjustable hydraulic shock absorber
CN112119239A (en) * 2018-05-03 2020-12-22 采埃孚股份公司 Vibration damper with adjustable damping valve
CN113153951A (en) * 2021-04-27 2021-07-23 吉林大学 Gas-liquid mixed damping cylinder for passive mechanical joint
US11162555B2 (en) 2008-08-25 2021-11-02 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US11168758B2 (en) 2009-01-07 2021-11-09 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11173765B2 (en) 2009-01-07 2021-11-16 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11279198B2 (en) 2009-10-13 2022-03-22 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US11279199B2 (en) 2012-01-25 2022-03-22 Fox Factory, Inc. Suspension damper with by-pass valves
US11299233B2 (en) 2009-01-07 2022-04-12 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
US11408482B2 (en) 2009-01-07 2022-08-09 Fox Factory, Inc. Bypass for a suspension damper
US11472252B2 (en) 2016-04-08 2022-10-18 Fox Factory, Inc. Electronic compression and rebound control
US11499601B2 (en) 2009-01-07 2022-11-15 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US11549565B2 (en) 2009-01-07 2023-01-10 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11619278B2 (en) 2009-03-19 2023-04-04 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US11629774B2 (en) 2012-05-10 2023-04-18 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11708878B2 (en) 2010-01-20 2023-07-25 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US11897571B2 (en) 2008-11-25 2024-02-13 Fox Factory, Inc. Seat post
US11958328B2 (en) 2011-09-12 2024-04-16 Fox Factory, Inc. Methods and apparatus for suspension set up
US12044286B2 (en) 2009-01-07 2024-07-23 Fox Factory, Inc. Compression isolator for a suspension damper
US12103349B2 (en) 2009-03-19 2024-10-01 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US12122205B2 (en) 2009-01-07 2024-10-22 Fox Factory, Inc. Active valve for an internal bypass

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2449236A1 (en) * 1979-02-16 1980-09-12 Brochot Maurice Hydraulic two=way ram shock absorber for car - has remote controlled pneumatic bellows to vary resistance valves to transfer feed
DE3111410C2 (en) * 1981-03-24 1985-12-05 Bayerische Motoren Werke AG, 8000 München Load-dependent controllable damping valve for vehicles
US5113980A (en) * 1990-09-11 1992-05-19 Hyrad Corporation Quick response adjustable shock absorber and system
US7562750B2 (en) * 2004-02-10 2009-07-21 Tenneco Automotive Operating Company Inc. Air pressure proportional damper for shock absorber
JP2022524427A (en) * 2019-03-11 2022-05-02 クリアモーション，インコーポレイテッド Pressure-compensated active suspension actuator system

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231739A1 (en) * 1982-08-26 1984-03-01 Fichtel & Sachs Ag, 8720 Schweinfurt TWO TUBE VIBRATION DAMPER OR SHOCK ABSORBER WITH VARIABLE DAMPING FORCE
GB2125930A (en) * 1982-08-26 1984-03-14 Fichtel & Sachs Ag A double-tube vibration damper with adjustable by-pass
US4589528A (en) * 1982-08-26 1986-05-20 Fichtel & Sachs Ag Double-tube vibration damper
FR2564549A1 (en) * 1984-05-17 1985-11-22 Boge Gmbh ADJUSTABLE HYDRAULIC SHOCK ABSORBER
GB2159234A (en) * 1984-05-17 1985-11-27 Boge Gmbh Hydraulic damper with adjustable bypass
EP0280824A1 (en) * 1987-03-02 1988-09-07 Jimecal Damper for a vehicle having air suspension, especially for a heavy vehicle
GB2222863A (en) * 1988-08-11 1990-03-21 Teves Gmbh Alfred Controllable hydraulic vibration damper for automotive vehicles
US5143185A (en) * 1988-08-11 1992-09-01 Alfred Teves Gmbh Controllable hydraulic vibration damper for automotive vehicles
GB2222863B (en) * 1988-08-11 1993-02-10 Teves Gmbh Alfred Controllable hydraulic vibration damper for automotive vehicles
GB2326925A (en) * 1997-02-21 1999-01-06 Tenneco Automotive Inc Load-adjustable hydraulic shock absorber
GB2326925B (en) * 1997-02-21 2001-05-16 Tenneco Automotive Inc Load depending damping assembly
US11306798B2 (en) 2008-05-09 2022-04-19 Fox Factory, Inc. Position sensitive suspension damping with an active valve
US11162555B2 (en) 2008-08-25 2021-11-02 Fox Factory, Inc. Methods and apparatus for suspension lock out and signal generation
US11897571B2 (en) 2008-11-25 2024-02-13 Fox Factory, Inc. Seat post
US11890908B2 (en) 2009-01-07 2024-02-06 Fox Factory, Inc. Method and apparatus for an adjustable damper
US12091122B2 (en) 2009-01-07 2024-09-17 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11976706B2 (en) 2009-01-07 2024-05-07 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US12134293B2 (en) 2009-01-07 2024-11-05 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11299233B2 (en) 2009-01-07 2022-04-12 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11168758B2 (en) 2009-01-07 2021-11-09 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
US11866120B2 (en) 2009-01-07 2024-01-09 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11408482B2 (en) 2009-01-07 2022-08-09 Fox Factory, Inc. Bypass for a suspension damper
US11794543B2 (en) 2009-01-07 2023-10-24 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11499601B2 (en) 2009-01-07 2022-11-15 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US11549565B2 (en) 2009-01-07 2023-01-10 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11173765B2 (en) 2009-01-07 2021-11-16 Fox Factory, Inc. Method and apparatus for an adjustable damper
US12044286B2 (en) 2009-01-07 2024-07-23 Fox Factory, Inc. Compression isolator for a suspension damper
US11660924B2 (en) 2009-01-07 2023-05-30 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11619278B2 (en) 2009-03-19 2023-04-04 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US11920655B2 (en) 2009-03-19 2024-03-05 Fox Factory, Inc. Methods and apparatus for suspension adjustment
US12103349B2 (en) 2009-03-19 2024-10-01 Fox Factory, Inc. Methods and apparatus for selective spring pre-load adjustment
US12005755B2 (en) 2009-10-13 2024-06-11 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US11279198B2 (en) 2009-10-13 2022-03-22 Fox Factory, Inc. Methods and apparatus for controlling a fluid damper
US11708878B2 (en) 2010-01-20 2023-07-25 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US11958328B2 (en) 2011-09-12 2024-04-16 Fox Factory, Inc. Methods and apparatus for suspension set up
US11760150B2 (en) 2012-01-25 2023-09-19 Fox Factory, Inc. Suspension damper with by-pass valves
US11279199B2 (en) 2012-01-25 2022-03-22 Fox Factory, Inc. Suspension damper with by-pass valves
US12038062B2 (en) 2012-05-10 2024-07-16 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11629774B2 (en) 2012-05-10 2023-04-18 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11472252B2 (en) 2016-04-08 2022-10-18 Fox Factory, Inc. Electronic compression and rebound control
CN112119239A (en) * 2018-05-03 2020-12-22 采埃孚股份公司 Vibration damper with adjustable damping valve
CN112119239B (en) * 2018-05-03 2022-06-21 采埃孚股份公司 Vibration damper with adjustable damping valve
CN113153951A (en) * 2021-04-27 2021-07-23 吉林大学 Gas-liquid mixed damping cylinder for passive mechanical joint
CN113153951B (en) * 2021-04-27 2022-06-14 吉林大学 Gas-liquid mixed damping cylinder for passive mechanical joint

Also Published As

Publication number Publication date
BE696971A (en) 1967-09-18
DE1555311A1 (en) 1970-08-20
FR1529716A (en) 1968-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees