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DE3425988A1 - Adjustable hydraulic shock absorber - Google Patents

Adjustable hydraulic shock absorber

Info

Publication number
DE3425988A1
DE3425988A1 DE19843425988 DE3425988A DE3425988A1 DE 3425988 A1 DE3425988 A1 DE 3425988A1 DE 19843425988 DE19843425988 DE 19843425988 DE 3425988 A DE3425988 A DE 3425988A DE 3425988 A1 DE3425988 A1 DE 3425988A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
damping
piston
stage
valves
speed
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.)
Ceased
Application number
DE19843425988
Other languages
German (de)
Inventor
Rudolf Schmidt
Ludwig Ing Grad Fueller
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.)
Mannesmann Boge GmbH
Original Assignee
Mannesmann Boge GmbH
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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/44Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46Means 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
    • F16F9/464Control of valve bias or pre-stress, e.g. electromagnetically

Abstract

Adjustable hydraulic shock absorber in which, to adjust the damping forces, the damping piston having on each of the sides facing the damping valves for the rebound stage and for the compression stage at least one recess, which is connected via an outflow hole or an inflow hole to the cavity of the piston rod, it being possible to influence in an appropriate manner the damping valves of both the rebound and of the compression stage by way of a flow passage and transverse holes arranged above the damping piston and a valve provided under the piston rod. The intention is that adjustments of the damping forces should be possible both at low piston speed and at moderate piston speed.
DE19843425988 1984-06-09 1984-07-14 Adjustable hydraulic shock absorber Ceased DE3425988A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19848421106 DE8421106U1 (en) 1984-06-09 1984-07-14
DE19843425988 DE3425988A1 (en) 1984-07-14 1984-07-14 Adjustable hydraulic shock absorber

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19848421106 DE8421106U1 (en) 1984-06-09 1984-07-14
DE19843425988 DE3425988A1 (en) 1984-07-14 1984-07-14 Adjustable hydraulic shock absorber
GB8514343A GB2159917B (en) 1984-06-09 1985-06-06 An adjustable hydraulic damper
FR8508683A FR2565648B1 (en) 1984-06-09 1985-06-07 adjustable hydraulic shock absorber

Publications (1)

Publication Number Publication Date
DE3425988A1 true true DE3425988A1 (en) 1986-01-23

Family

ID=25822943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843425988 Ceased DE3425988A1 (en) 1984-06-09 1984-07-14 Adjustable hydraulic shock absorber

Country Status (1)

Country Link
DE (1) DE3425988A1 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518327A1 (en) * 1985-05-22 1986-11-27 Boge Gmbh Hydraulic adjustable Schwingungsdaempfer
DE3532292A1 (en) * 1985-09-11 1987-03-19 Fichtel & Sachs Ag Vibration damper having an adjustable damping force
DE3644447A1 (en) * 1986-12-24 1988-07-07 Bosch Gmbh Robert Device for damping bewegungsablaeufen
US4867475A (en) * 1988-02-16 1989-09-19 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US4890858A (en) * 1988-02-16 1990-01-02 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
DE3931240A1 (en) * 1988-09-19 1990-04-19 Atsugi Unisia Corp Stossdaempfungseinrichtung with veraenderlicher daempfungscharakteristik, particularly for motor vehicles
US4923038A (en) * 1986-06-05 1990-05-08 Lizell Magnus B Method and apparatus for absorbing mechanical shock
US4943083A (en) * 1989-03-13 1990-07-24 Monroe Auto Equipment Company Signal conditioning circuit assembly
US5092626A (en) * 1989-03-13 1992-03-03 Monroe Auto Equipment Company Apparatus for controlling the damping of a shock absorber
DE4027796A1 (en) * 1990-09-01 1992-03-05 Teves Gmbh Alfred Variable hydraulic suspension strut for motor vehicle - has solenoid controlled by=pass and variable effect piston valves
US5123671A (en) * 1989-03-13 1992-06-23 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US5125681A (en) * 1990-11-26 1992-06-30 Monroe Auto Equipment Company Method and apparatus for determining the displacement of a piston within a shock absorber
US5152379A (en) * 1990-04-16 1992-10-06 Monroe Auto Equipment Company Adjustable shock absorber assembly
US5217095A (en) * 1986-06-05 1993-06-08 Monroe Auto Equipment Company Method and apparatus for absorbing mechanical shock
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
DE19750155C2 (en) * 1996-11-12 1999-10-14 Tokico Ltd Hydro shock absorber damping force control
DE19934852A1 (en) * 1999-07-24 2001-01-25 Suspa Holding Gmbh Shock absorber for use in telescopic forks for motor cycles comprises housing with an internal chamber in which piston and rod move, with devices for damping movement of piston into and out of chamber and controls for these on piston rod
DE102010011688A1 (en) 2010-03-17 2010-12-02 Daimler Ag Gas spring damper device for motor vehicle, has resilience point comprising energy storage for storing portion of hydraulic energy, where energy is provided during insertion movement along path portion of spring path

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063859B (en) * 1954-03-03 1959-08-20 Arie Adrianus De Koning Stossdaempfer
DE1505417B (en) * 1965-06-19 1970-03-12 Bourcier De Carbon Christian M Infinitely adjustable shock absorber, especially for motor vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1063859B (en) * 1954-03-03 1959-08-20 Arie Adrianus De Koning Stossdaempfer
DE1505417B (en) * 1965-06-19 1970-03-12 Bourcier De Carbon Christian M Infinitely adjustable shock absorber, especially for motor vehicles

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518327A1 (en) * 1985-05-22 1986-11-27 Boge Gmbh Hydraulic adjustable Schwingungsdaempfer
DE3532292A1 (en) * 1985-09-11 1987-03-19 Fichtel & Sachs Ag Vibration damper having an adjustable damping force
US5025899A (en) * 1986-06-05 1991-06-25 Lizell Magnus B Method and apparatus for absorbing mechanical shock
US4923038A (en) * 1986-06-05 1990-05-08 Lizell Magnus B Method and apparatus for absorbing mechanical shock
US5217095A (en) * 1986-06-05 1993-06-08 Monroe Auto Equipment Company Method and apparatus for absorbing mechanical shock
DE3644447A1 (en) * 1986-12-24 1988-07-07 Bosch Gmbh Robert Device for damping bewegungsablaeufen
US4867475A (en) * 1988-02-16 1989-09-19 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US4890858A (en) * 1988-02-16 1990-01-02 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
DE3931240A1 (en) * 1988-09-19 1990-04-19 Atsugi Unisia Corp Stossdaempfungseinrichtung with veraenderlicher daempfungscharakteristik, particularly for motor vehicles
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
US4943083A (en) * 1989-03-13 1990-07-24 Monroe Auto Equipment Company Signal conditioning circuit assembly
US5123671A (en) * 1989-03-13 1992-06-23 Monroe Auto Equipment Company Method and apparatus for controlling shock absorbers
US5092626A (en) * 1989-03-13 1992-03-03 Monroe Auto Equipment Company Apparatus for controlling the damping of a shock absorber
US5152379A (en) * 1990-04-16 1992-10-06 Monroe Auto Equipment Company Adjustable shock absorber assembly
DE4027796A1 (en) * 1990-09-01 1992-03-05 Teves Gmbh Alfred Variable hydraulic suspension strut for motor vehicle - has solenoid controlled by=pass and variable effect piston valves
DE4027796C2 (en) * 1990-09-01 1999-07-08 Teves Gmbh Alfred Controllable hydraulic vibration damper for motor vehicles
US5125681A (en) * 1990-11-26 1992-06-30 Monroe Auto Equipment Company Method and apparatus for determining the displacement of a piston within a shock absorber
DE19750155C2 (en) * 1996-11-12 1999-10-14 Tokico Ltd Hydro shock absorber damping force control
DE19934852A1 (en) * 1999-07-24 2001-01-25 Suspa Holding Gmbh Shock absorber for use in telescopic forks for motor cycles comprises housing with an internal chamber in which piston and rod move, with devices for damping movement of piston into and out of chamber and controls for these on piston rod
DE102010011688A1 (en) 2010-03-17 2010-12-02 Daimler Ag Gas spring damper device for motor vehicle, has resilience point comprising energy storage for storing portion of hydraulic energy, where energy is provided during insertion movement along path portion of spring path

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