DE102005053394B4 - Vibration damper with adjustable damping force - Google Patents
Vibration damper with adjustable damping force Download PDFInfo
- Publication number
- DE102005053394B4 DE102005053394B4 DE102005053394.9A DE102005053394A DE102005053394B4 DE 102005053394 B4 DE102005053394 B4 DE 102005053394B4 DE 102005053394 A DE102005053394 A DE 102005053394A DE 102005053394 B4 DE102005053394 B4 DE 102005053394B4
- Authority
- DE
- Germany
- Prior art keywords
- valve
- vibration damper
- check valve
- cylinder
- valve body
- 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
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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
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/325—Constructional features of cylinders for attachment of valve units
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- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/369—Sealings for elements other than pistons or piston rods, e.g. valves
-
- 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
Abstract
Schwingungsdämpfer (1) mit mindestens zwei verstellbaren Dämpfventilen (21; 41), umfassend einen Zylinder (3), in dem eine Kolbenstange (5) mit einem Kolben (7) axial beweglich geführt ist, der den Zylinder (3) in zwei Arbeitsräume (13; 15) unterteilt, wobei jeweils ein Arbeitsraum (13; 15) über eine Fluidverbindung (19; 45) an das entsprechende verstellbare Dämpfventil angeschlossen ist und der Fluidenstrom mit dem Dämpfventil über eine Rückschlagventilanordnung gelenkt wird, wobei eine der Fluidenverbindungen (19) von einem Ringraum zwischen dem Zylinder (3) und einem Rohr (17) gebildet wird, wobei in dem Ringraum ein Rückschlagventil (31) angeordnet ist, dadurch gekennzeichnet, dass das Rohr (17) als eine mehrteilige Baueinheit ausgeführt ist, umfassend einen Leitungskörper (65) und einen Rohrstutzenkörper (69), wobei die beiden Bauteile (65; 69) über den Ventilkörper (33) des Rückschlagventils (33) miteinander verbunden sind, wobei zwischen dem Rohrstutzenkörper (69) und dem Ventilkörper (33) eine Formschlussverbindung (77) vorliegt.Vibration damper (1) with at least two adjustable damping valves (21, 41), comprising a cylinder (3) in which a piston rod (5) is axially movably guided with a piston (7) which moves the cylinder (3) into two working spaces ( 13, 15), wherein in each case a working space (13; 15) is connected to the corresponding adjustable damping valve via a fluid connection (19; 45) and the fluid flow with the damping valve is directed via a check valve arrangement, one of the fluid connections (19) of an annular space between the cylinder (3) and a tube (17) is formed, wherein in the annular space a check valve (31) is arranged, characterized in that the tube (17) is designed as a multi-part structural unit, comprising a line body (65 ) and a pipe socket body (69), wherein the two components (65; 69) via the valve body (33) of the check valve (33) are interconnected, wherein between the pipe socket body (6 9) and the valve body (33) is a positive connection (77).
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
Die
In dem Ausführungsbeispiel gemäß der
Die
Aus der
Aufgabe der vorliegenden Erfindung ist es, die konstruktive Ausgestaltung einer Rückschlagventilanordnung, die der Verwendung von zwei getrennt verstellbaren Dämpfventilen dient.Object of the present invention is the structural design of a check valve assembly, which serves the use of two separately adjustable damping valves.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention, the object is solved by the features of
Der große Vorteil besteht darin, dass an dem verstellbaren Dämpfventil keine tiefgreifenden Veränderungen vorgenommen werden müssen, die ggf. einen vergrößerten Bauraum erforderlich machen würden. Die vorteilhafte Teilung des Rohres in verschiedene Funktionsabschnitte erleichtert wesentlich die Herstellung. Des Weiteren liegt eine stabile und im gesamten Aufbau sehr einfache Fluidverbindung vor.The big advantage is that on the adjustable damping valve no profound changes must be made, which would possibly require an enlarged space. The advantageous division of the tube into different functional sections substantially facilitates the production. Furthermore, there is a stable and very simple fluid connection throughout the structure.
In weiterer Ausgestaltung der Erfindung öffnet das Rückschlagventil ausgehend von einem Ausgleichsraum zur Kompensation des Volumens der Kolbenstange in Richtung der Fluidverbindung. Die Fluidverbindung sorgt für einen Dämpfmittelzustrom in den Arbeitsraum, wenn sich dieser bei einer Kolbenstangenbewegung vergrößert.In a further embodiment of the invention, the check valve opens, starting from a compensation chamber to compensate for the volume of the piston rod in the direction of the fluid connection. The fluid connection provides a damping medium flow into the working space as it increases in a piston rod movement.
Das Rückschlagventil weist einen einfachen ringförmigen Ventilkörper auf. Der Ventilkörper des Rückschlagventils ist bevorzugt endseitig am Rohr befestigt.The check valve has a simple annular valve body. The valve body of the check valve is preferably attached to the end of the pipe.
Dazu weist das Rohr eine radiale Aufweitung auf, in der der Ventilkörper befestigt ist.For this purpose, the tube has a radial expansion, in which the valve body is fixed.
Die radiale Aufweitung ist axial länger ausgeführt ist als die Höhe des Ventilkörpers, so dass innerhalb der Aufweitung eine Ventilscheibe axial beweglich gelagert ist. Damit bildet das Rohr funktional das Gehäuse für das Rückschlagventil.The radial expansion is performed axially longer than the height of the valve body, so that within the expansion of a valve disc is mounted axially movable. Thus, the tube functionally forms the housing for the check valve.
Ggf. kann die Ventilscheibe von einer Feder in Schließrichtung vorgespannt sein, um stets eine definierte Betriebsstellung des Rückschlagventils zu erreichen.Possibly. the valve disc may be biased by a spring in the closing direction to always achieve a defined operating position of the check valve.
Des Weiteren weist der Rohrstutzenkörper einen Absatz auf, auf dem sich der Ventilkörper abstützt.Furthermore, the pipe socket body has a shoulder on which the valve body is supported.
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.
Es zeigt:
-
1 Schwingungsdämpfer im Längsschnitt -
2 Kolbenventil im Detail -
3a - c Rückschlagventilkörper als Einzelteil -
4 Erfindungsgemäßes mehrteiliges Rohr als Baueinheit
-
1 Vibration damper in longitudinal section -
2 Piston valve in detail -
3a - c check valve body as a single part -
4 Inventive multi-part tube as a unit
Die
Der gesamte Zylinder wird von einem Behälterrohr
In der Fluidverbindung ist ein Rückschlagventil
Bei einer Ausfahrbewegung der Kolbenstange wird das Dämpfmedium aus dem kolbenstangenseitigen Arbeitsraum durch die Anschlussöffnung
Der Schwingungsdämpfer
Prinzipiell könnte der Kolben als einfacher Verdränger ohne Verbindungskanäle zwischen den Arbeitsräumen
In der
Die Figurengruppe
Die
Der Rohrstutzen verfügt über einen Absatz
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005053394.9A DE102005053394B4 (en) | 2004-11-11 | 2005-11-09 | Vibration damper with adjustable damping force |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004054475 | 2004-11-11 | ||
DE102004054475.1 | 2004-11-11 | ||
DE102005053394.9A DE102005053394B4 (en) | 2004-11-11 | 2005-11-09 | Vibration damper with adjustable damping force |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005053394A1 DE102005053394A1 (en) | 2006-05-18 |
DE102005053394B4 true DE102005053394B4 (en) | 2018-04-26 |
Family
ID=36273984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102005053394.9A Expired - Fee Related DE102005053394B4 (en) | 2004-11-11 | 2005-11-09 | Vibration damper with adjustable damping force |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005053394B4 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008045083A1 (en) | 2008-08-29 | 2010-03-04 | Volkswagen Ag | Vibration damper i.e. double tube damper, for wheel suspension of motor vehicle, has check valve formed by lip that permits overflow of medium in direction of balancing region and locks overflow in opposite direction |
DE102010045076B3 (en) * | 2010-09-11 | 2012-01-12 | Zf Friedrichshafen Ag | 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 |
DE102015203522A1 (en) * | 2015-02-27 | 2016-09-01 | Zf Friedrichshafen Ag | Piston rod cylinder unit with an intermediate pipe |
DE102016202197A1 (en) * | 2016-02-12 | 2017-08-17 | Zf Friedrichshafen Ag | Vibration damper assembly and motor vehicle |
DE102016206595A1 (en) | 2016-04-19 | 2017-10-19 | Zf Friedrichshafen Ag | Adjustable vibration damper |
DE102017209609B4 (en) | 2017-06-07 | 2021-11-25 | Zf Friedrichshafen Ag | Vibration damper with adjustable damping force |
DE102017216919A1 (en) | 2017-09-25 | 2019-03-28 | Zf Friedrichshafen Ag | Adjustable vibration damper |
DE102017216922A1 (en) | 2017-09-25 | 2019-03-28 | Zf Friedrichshafen Ag | Adjustable vibration damper |
DE102017220081A1 (en) | 2017-11-10 | 2019-05-16 | Zf Friedrichshafen Ag | Adjustable vibration damper |
DE102017222232A1 (en) * | 2017-12-08 | 2019-06-13 | Zf Friedrichshafen Ag | Vibration damper with adjustable damping force |
IT201800007584A1 (en) * | 2018-07-27 | 2020-01-27 | Sistemi Sospensioni Spa | Variable damping hydraulic shock absorber, particularly for vehicle suspension. |
DE102018220630B4 (en) | 2018-11-29 | 2024-01-11 | Thyssenkrupp Ag | Adjustable vibration damper and vehicle with such a vibration damper |
DE102019108070A1 (en) * | 2019-03-28 | 2020-10-01 | Thyssenkrupp Ag | Vibration damper and vehicle |
DE102019206455A1 (en) * | 2019-05-06 | 2020-11-12 | Zf Friedrichshafen Ag | Vibration damper with two adjustable damping valve devices |
DE102019212908A1 (en) * | 2019-08-28 | 2021-03-04 | Thyssenkrupp Ag | Vibration damper with adjustable damping force |
DE102020214751A1 (en) | 2020-11-24 | 2022-05-25 | Volkswagen Aktiengesellschaft | Vibration dampers with external control valves |
US11906015B2 (en) * | 2022-01-03 | 2024-02-20 | DRiV Automotive Inc. | Damper with a slanted elliptical seal between an intermediate tube and an inner pressure tube |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007261A1 (en) | 1990-03-08 | 1991-09-12 | Boge Ag | Controlled damper for vehicle suspension - has separate solenoid control valves for compression and decompression |
DE4213803A1 (en) * | 1992-04-27 | 1993-10-28 | Teves Gmbh Alfred | Pilot operated valve for chassis control systems |
DE4320446A1 (en) | 1992-08-08 | 1994-02-10 | Bosch Gmbh Robert | Shock absorber |
EP0715091A2 (en) * | 1994-12-03 | 1996-06-05 | FICHTEL & SACHS AG | Adjustable vibration damper |
DE19512866A1 (en) * | 1995-04-06 | 1996-10-10 | Fichtel & Sachs Ag | Vibration damper for pressure pipe |
DE19624898C2 (en) | 1996-06-21 | 1998-07-02 | Mannesmann Sachs Ag | Damping valve with variable damping force |
DE19822648A1 (en) * | 1997-06-14 | 1998-12-17 | Mannesmann Sachs Ag | Oscillation damper for motor vehicle running gear |
DE10025399A1 (en) | 1999-05-25 | 2000-12-21 | Tenneco Automotive Inc | Vibration damper |
DE10320005B3 (en) * | 2003-05-06 | 2004-10-21 | Zf Sachs Ag | Vibration damper with adjustable damping force comprises a field force-producing element having a part connected to an electricity supply and arranged outside a cylinder for transmitting the field force through the closed cylinder |
-
2005
- 2005-11-09 DE DE102005053394.9A patent/DE102005053394B4/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007261A1 (en) | 1990-03-08 | 1991-09-12 | Boge Ag | Controlled damper for vehicle suspension - has separate solenoid control valves for compression and decompression |
DE4213803A1 (en) * | 1992-04-27 | 1993-10-28 | Teves Gmbh Alfred | Pilot operated valve for chassis control systems |
DE4320446A1 (en) | 1992-08-08 | 1994-02-10 | Bosch Gmbh Robert | Shock absorber |
EP0715091A2 (en) * | 1994-12-03 | 1996-06-05 | FICHTEL & SACHS AG | Adjustable vibration damper |
DE19512866A1 (en) * | 1995-04-06 | 1996-10-10 | Fichtel & Sachs Ag | Vibration damper for pressure pipe |
DE19624898C2 (en) | 1996-06-21 | 1998-07-02 | Mannesmann Sachs Ag | Damping valve with variable damping force |
DE19822648A1 (en) * | 1997-06-14 | 1998-12-17 | Mannesmann Sachs Ag | Oscillation damper for motor vehicle running gear |
DE10025399A1 (en) | 1999-05-25 | 2000-12-21 | Tenneco Automotive Inc | Vibration damper |
DE10320005B3 (en) * | 2003-05-06 | 2004-10-21 | Zf Sachs Ag | Vibration damper with adjustable damping force comprises a field force-producing element having a part connected to an electricity supply and arranged outside a cylinder for transmitting the field force through the closed cylinder |
Also Published As
Publication number | Publication date |
---|---|
DE102005053394A1 (en) | 2006-05-18 |
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Legal Events
Date | Code | Title | Description |
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R012 | Request for examination validly filed |
Effective date: 20120828 |
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R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |