DE102010045076B3 - Vibration damper for use with adjustable damping force, has inner cylinder, in which piston separates piston rod-sided- and piston rod-distant working chambers from each other at piston rod in spatial manner - Google Patents
Vibration damper for use with adjustable damping force, has inner cylinder, in which piston separates piston rod-sided- and piston rod-distant working chambers from each other at piston rod in spatial manner Download PDFInfo
- Publication number
- DE102010045076B3 DE102010045076B3 DE201010045076 DE102010045076A DE102010045076B3 DE 102010045076 B3 DE102010045076 B3 DE 102010045076B3 DE 201010045076 DE201010045076 DE 201010045076 DE 102010045076 A DE102010045076 A DE 102010045076A DE 102010045076 B3 DE102010045076 B3 DE 102010045076B3
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- valve
- vibration damper
- adjustable
- intermediate tube
- 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 - Fee Related
Links
- 238000013016 damping Methods 0.000 title claims abstract description 64
- 239000012530 fluid Substances 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 description 2
- 206010010219 Compulsions Diseases 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 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
- F16F9/32—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
- F16F9/466—Throttling control, i.e. regulation of flow passage geometry
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung betrifft einen Schwingungsdämpfer mit verstellbarer Dämpfkraft gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to a vibration damper with adjustable damping force according to the preamble of
Aus der
Bei einer Kolbenstangenausfahrbewegung wird das Dämpfmediumvolumen bei geschlossenem Rückschlagventil aus dem ringförmigen kolbenstangenseitigen Arbeitsraum in das verstellbare Dämpfventil verdrängt. Gleichzeitig wird zur Befüllung des kolbenstangenfernen Arbeitsraums Dämpfmedium aus einem Ausgleichsraum über ein an einem Boden des inneren Zylinders angeordnetes und offenes Rückschlagventil nachgefördert. Bei einer Kolbenstangeneinfahrbewegung wird das durch die Kolbenstange verdrängte Dämpfmediumvolumen durch ein Bodenventil verdrängt, das dem verstellbaren Dämpfventil hydraulisch parallel geschaltet ist.In a piston rod extension movement, the damping medium volume is displaced in the closed check valve from the annular piston rod side working space in the adjustable damping valve. At the same time, for the filling of the piston rod remote working space damping medium from a compensation chamber via a arranged at a bottom of the inner cylinder and open check valve nachgefördert. In a piston rod retraction movement displaced by the piston rod damping medium volume is displaced by a bottom valve, which is hydraulically connected in parallel to the adjustable damping valve.
Diese Schwingungsdämpferbauweise hat sich zwar bewährt, doch besteht ein permanenter Zwang zur Verkürzung der axialen Baulänge des Schwingungsdämpfers. Des Weiteren kann das kolbenseitige Rückschlagventil Geräusche verursachen, die man zwar durch eine geschickte Abstimmung verhindern kann, was aber wieder als Aufwand anzusehen ist.Although this vibration damper design has proven itself, there is a permanent compulsion to shorten the axial length of the vibration damper. Furthermore, the piston-side check valve can cause noise that can be prevented by a clever vote, but again as an expense.
Aus der
In der
Die
Die Aufgabe der vorliegenden Erfindung besteht darin, einen axial kurz bauenden Schwingungsdämpfer mit verstellbarer Dämpfkraft zu realisieren.The object of the present invention is to realize an axially short-built vibration damper with adjustable damping force.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass das verstellbare Dämpfventil zwei Hochdruckanschlüsse und damit zwei Durchströmungsrichtungen zur Aufnahme von Dämpfmedium aus den beiden Arbeitsräumen aufweist, wobei der kolbenstangenferne Arbeitsraum über einen zur Fluidverbindung separaten Dämpfmittelanschluss zum verstellbaren Dämpfventil verfügt, wobei das bei einer Kolbenstangeneinfahrbewegung wirksame Dämpfventil außerhalb des inneren Zylinders dem Hochdruckanschluss zum verstellbaren Dämpfventil nachgeordnet ist.According to the invention the object is achieved in that the adjustable damping valve has two high-pressure ports and thus two flow directions for receiving damping medium from the two working spaces, the piston rod remote working space has a fluid connection for separate Dämpfmittelanschluss to the adjustable damping valve, said effective at a Kolbenstangeneinfahrbewegung damping valve outside of the inner cylinder is arranged downstream of the high-pressure connection to the adjustable damping valve.
Der große Vorteil besteht darin, dass durch die wechselseitige Durchströmung des verstellbaren Dämpfventils auf ein Rückschlagventil am Kolben verzichtet werden kann. Des Weiteren kann das zum Ausgleichsraum wirksame Dämpfventil von seiner bisherigen Befestigungsstelle an einen anderen Punkt verlegt werden, so dass der axiale Bauraum für das Bodenventil eingespart werden kann.The great advantage is that can be dispensed with by the reciprocal flow through the adjustable damping valve on a check valve on the piston. Furthermore, the effective damping chamber for compensation chamber can be moved from its previous attachment point to another point, so that the axial space for the bottom valve can be saved.
Bevorzugt soll das Dämpfventil als Ringventil ausgeführt und zwischen dem Zwischenrohr und dem äußeren Zylinder angeordnet sein. Ein derartiges Ringventil lässt sich leicht herstellen.Preferably, the damping valve should be designed as a ring valve and arranged between the intermediate tube and the outer cylinder. Such a ring valve can be easily produced.
Des Weiteren ist vorgesehen, dass das Ringventil axial auf dem Zwischenrohr fixiert ist. Es lässt sich unabhängig von den weiteren Einzelteilen des Schwingungsdämpfers eine Baugruppe vormontieren, die in den äußeren Zylinder eingeschoben werden kann.Furthermore, it is provided that the ring valve is fixed axially on the intermediate tube. It can be independently of the other items of the Vibration damper pre-assemble a module that can be inserted into the outer cylinder.
Das Ringventil wird vorteilhafterweise über beidseitige Fixierhülsen am Zwischenrohr gehalten. Die Fixierhülsen können beispielsweise mittels einer Schweißoperation am Zwischenrohr befestigt werden.The ring valve is advantageously held on both sides fixing sleeves on the intermediate tube. The fixing sleeves can be fixed, for example, by means of a welding operation on the intermediate tube.
Optional ist der Kolben als geschlossener Verdränger ausgeführt, so dass der Kolben axial sehr kurz sein kann.Optionally, the piston is designed as a closed displacer, so that the piston can be very short axially.
Um montagebedingte Lufteinschlüsse in dem verstellbaren Dämpfventil abführen zu können, weist das verstellbare Dämpfventil ein Vorsteuerventil mit einem Steuerraum auf, der auf einer Rückseite eines Hauptstufenventilkörpers angeordnet ist, wobei der Steuerraum vertikal unterhalb des Hauptstufenventilkörpers ausgeführt ist. Sollten sich Lufteinschlüsse gebildet haben, so steigen diese in Richtung des Hauptstufenventilkörpers auf und werden von der bei der Kolbenstangenbewegung auftretenden Dämpfmediumströmung aus dem verstellbaren Dämpfventil abgeführt.To be able to discharge assembly-related air pockets in the adjustable damping valve, the adjustable damping valve has a pilot valve with a control chamber which is arranged on a rear side of a main stage valve body, wherein the control chamber is designed vertically below the main stage valve body. If air bubbles have formed, they rise in the direction of the main stage valve body and are removed from the adjustable damping valve by the damping medium flow occurring during the piston rod movement.
Als weitere Maßnahme zur Vereinfachung der Montage des Schwingungsdämpfers weist das Zwischenrohr eine Durchmesserreduzierung auf, auf die sich der innere Zylinder axial abstützt.As a further measure to simplify the assembly of the vibration damper, the intermediate tube has a diameter reduction, on which the inner cylinder is axially supported.
Bevorzugt wird die Durchmesserreduzierung von einem endseitig umgeformten Randbereich des Zwischenrohres gebildet.The reduction in diameter is preferably formed by an edge region of the intermediate tube which has been reshaped at the end.
Gemäß einem vorteilhaften Unteranspruch stützt sich das Zwischenrohr axial auf einem endseitigen Boden des äußeren Zylinders ab. Damit ist eine Axialverschiebung des Zwischenrohrs relativ zum inneren Zylinder ausgeschlossen, da sich der innere Zylinder mit seinem anderen Ende axial an einer Kolbenstangenführung abstützt.According to an advantageous embodiment, the intermediate tube is supported axially on an end-side bottom of the outer cylinder. For an axial displacement of the intermediate tube is excluded relative to the inner cylinder, since the inner cylinder is axially supported at its other end to a piston rod guide.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.The invention will be explained in more detail with reference to the following description of the figures.
Die einzige Figur zeigt einen Schwingungsdämpfer
Der kolbenstangenseitige Arbeitsraum
Das Zwischenrohr
Bei einer Kolbenstangeneinfahrbewegung ist der Fluidverbindung
Das verstellbare Dämpfventil
Zwischen dem Zwischenrohr
Das Ringventil verfügt über das Dämpfventil
Das Ringventil
Das verstellbare Dämpfventil
Der Steuerraum
Bei einer Kolbenstangenausfahrbewegung wird das Dämpfmedium vom Kolben
Bei einer Kolbenstangeneinfahrbewegung wird das gesamte Dämpfmedium aus dem kolbenstangenfernen Arbeitsraum
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Schwingungsdämpfervibration
- 33
- innerer Zylinderinner cylinder
- 55
- Kolbenstangepiston rod
- 77
- Kolbenpiston
- 99
- kolbenstangenseitiger Arbeitsraumpiston rod side working space
- 1111
- kolbenstangenferner ArbeitsraumKolbenstangenferner workspace
- 1313
- Anschlussöffnungport opening
- 1515
- Fluidverbindungfluid communication
- 1717
- Zwischenrohrintermediate pipe
- 1919
- verstellbares Dämpfventiladjustable damping valve
- 2121
- äußerer Zylinderouter cylinder
- 23; 2523; 25
- Führungsabschnitteguide sections
- 27; 2927; 29
- Dichtungpoetry
- 3131
- DurchmesserreduzierungDiameter reduction
- 3333
- Bodenground
- 3535
- Ausgleichsraumcompensation space
- 3737
- Dämpfventildamping valve
- 3939
- erster Hochdruckanschlussfirst high-pressure connection
- 4141
- zweiter Hochdruckanschlusssecond high-pressure connection
- 4343
- StutzenSupport
- 4545
- Gehäusecasing
- 4747
- Ringventilring valve
- 4949
- ÜbergangsraumTransition Room
- 5151
- Rückschlagventilcheck valve
- 53; 5553; 55
- Fixierhülsenfixing sleeves
- 6767
- Magnetspulesolenoid
- 5959
- Ankeranchor
- 6161
- Steuerraumcontrol room
- 6363
- Vorsteuerventilpilot valve
- 6565
- Ventilfedervalve spring
- 6767
- HauptstufenventilkörperMain stage valve body
- 6969
- RückschlusskörperReturn body
- 7171
- Vorventilpilot valve
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010045076 DE102010045076B3 (en) | 2010-09-11 | 2010-09-11 | Vibration damper for use with adjustable damping force, has inner cylinder, in which piston separates piston rod-sided- and piston rod-distant working chambers from each other at piston rod in spatial manner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010045076 DE102010045076B3 (en) | 2010-09-11 | 2010-09-11 | Vibration damper for use with adjustable damping force, has inner cylinder, in which piston separates piston rod-sided- and piston rod-distant working chambers from each other at piston rod in spatial manner |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010045076B3 true DE102010045076B3 (en) | 2012-01-12 |
Family
ID=45372804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010045076 Expired - Fee Related DE102010045076B3 (en) | 2010-09-11 | 2010-09-11 | Vibration damper for use with adjustable damping force, has inner cylinder, in which piston separates piston rod-sided- and piston rod-distant working chambers from each other at piston rod in spatial manner |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010045076B3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019110226A1 (en) * | 2017-12-08 | 2019-06-13 | Zf Friedrichshafen Ag | Vibration damper with adjustable damping force |
US11441633B2 (en) | 2020-08-14 | 2022-09-13 | DRiV Automotive Inc. | Damper assembly including intake valve in fluid chamber |
DE102021202352A1 (en) | 2021-03-11 | 2022-09-15 | Thyssenkrupp Ag | Vibration damper with a damping characteristic for a vehicle |
WO2023096763A1 (en) * | 2021-11-23 | 2023-06-01 | DRiV Automotive Inc. | Damper with compression damping force range increase |
EP4484789A1 (en) * | 2023-06-26 | 2025-01-01 | DRiV Automotive Inc. | Intake valve arrangement, damper comprising the same, and method for adjusting auxiliary flow |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3609862A1 (en) * | 1986-03-22 | 1987-10-01 | Boge Gmbh | ADJUSTABLE SHOCK ABSORBER |
DE19822648A1 (en) * | 1997-06-14 | 1998-12-17 | Mannesmann Sachs Ag | Oscillation damper for motor vehicle running gear |
DE19841857A1 (en) * | 1997-12-11 | 1999-06-17 | Mannesmann Sachs Ag | Hydraulic vibration damper with variable damping force |
DE19963415A1 (en) * | 1998-12-28 | 2000-09-14 | Tokico Ltd | Damping force regulating type hydraulic shock absorber |
DE19822448C2 (en) * | 1997-07-08 | 2000-11-30 | Mannesmann Sachs Ag | Adjustable vibration damper for motor vehicles |
DE102005053394A1 (en) * | 2004-11-11 | 2006-05-18 | Zf Friedrichshafen Ag | Vibration damper with adjustable absorbing strength has fluid connection formed by the annular space between cylinder and pipe with a non-return valve arranged in the annular space |
JP2007303545A (en) * | 2006-05-11 | 2007-11-22 | Kayaba Ind Co Ltd | Shock absorber |
-
2010
- 2010-09-11 DE DE201010045076 patent/DE102010045076B3/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3609862A1 (en) * | 1986-03-22 | 1987-10-01 | Boge Gmbh | ADJUSTABLE SHOCK ABSORBER |
DE19822648A1 (en) * | 1997-06-14 | 1998-12-17 | Mannesmann Sachs Ag | Oscillation damper for motor vehicle running gear |
DE19822448C2 (en) * | 1997-07-08 | 2000-11-30 | Mannesmann Sachs Ag | Adjustable vibration damper for motor vehicles |
DE19841857A1 (en) * | 1997-12-11 | 1999-06-17 | Mannesmann Sachs Ag | Hydraulic vibration damper with variable damping force |
DE19963415A1 (en) * | 1998-12-28 | 2000-09-14 | Tokico Ltd | Damping force regulating type hydraulic shock absorber |
DE102005053394A1 (en) * | 2004-11-11 | 2006-05-18 | Zf Friedrichshafen Ag | Vibration damper with adjustable absorbing strength has fluid connection formed by the annular space between cylinder and pipe with a non-return valve arranged in the annular space |
JP2007303545A (en) * | 2006-05-11 | 2007-11-22 | Kayaba Ind Co Ltd | Shock absorber |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019110226A1 (en) * | 2017-12-08 | 2019-06-13 | Zf Friedrichshafen Ag | Vibration damper with adjustable damping force |
CN111465779A (en) * | 2017-12-08 | 2020-07-28 | 采埃孚股份公司 | Vibration damper with adjustable damping force |
CN111465779B (en) * | 2017-12-08 | 2022-10-04 | 采埃孚股份公司 | Vibration damper with adjustable damping force |
US11441633B2 (en) | 2020-08-14 | 2022-09-13 | DRiV Automotive Inc. | Damper assembly including intake valve in fluid chamber |
DE102021202352A1 (en) | 2021-03-11 | 2022-09-15 | Thyssenkrupp Ag | Vibration damper with a damping characteristic for a vehicle |
WO2023096763A1 (en) * | 2021-11-23 | 2023-06-01 | DRiV Automotive Inc. | Damper with compression damping force range increase |
US11781611B2 (en) | 2021-11-23 | 2023-10-10 | DRiV Automotive Inc. | Damper with compression damping force range increase |
EP4484789A1 (en) * | 2023-06-26 | 2025-01-01 | DRiV Automotive Inc. | Intake valve arrangement, damper comprising the same, and method for adjusting auxiliary flow |
WO2025003798A1 (en) * | 2023-06-26 | 2025-01-02 | DRiV Automotive Inc. | Intake valve arrangement, damper comprising the same, and method for adjusting auxiliary flow |
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R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: F16F0009440000 Ipc: F16F0009460000 |
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R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20120413 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |