DE102008041567B3 - Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod - Google Patents
Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod Download PDFInfo
- Publication number
- DE102008041567B3 DE102008041567B3 DE200810041567 DE102008041567A DE102008041567B3 DE 102008041567 B3 DE102008041567 B3 DE 102008041567B3 DE 200810041567 DE200810041567 DE 200810041567 DE 102008041567 A DE102008041567 A DE 102008041567A DE 102008041567 B3 DE102008041567 B3 DE 102008041567B3
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- cylinder
- pressure medium
- vibration damper
- stop
- 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
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
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
-
- 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
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/413—Hydraulic actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
- B60G2204/4502—Stops limiting travel using resilient buffer
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 verstellbarem Druckanschlag gemäß dem Oberbegriff von Patentanspruch 1.The The invention relates to a vibration damper with adjustable pressure stop according to the generic term of claim 1.
Aus
der
Ein wesentlicher Nachteil kann darin gesehen werden, dass eine Lauffläche der Hülse die Kolbenstange einhüllt und damit den möglichen Einfederungsweg der Kolbenstange beschränkt.One substantial disadvantage can be seen in the fact that a tread of the Sleeve the Wrapped piston rod and thus the possible Jounce stroke of the piston rod limited.
Die
In
der
Aus
der
Die Aufgabe der vorliegenden Erfindung ist es, einen Schwingungsdämpfer mit einem axial verstellbaren Druckanschlag zu realisieren, der einfach und kompakt im Aufbau und auch für größere Belastungen geeignet ist.The Object of the present invention is to provide a vibration damper to realize an axially adjustable pressure stop, the simple and compact in construction and also for greater loads suitable is.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention Problem solved by the features of claim 1.
Die Rückstellbewegung des Druckanschlags in seine Ausgangsposition, d. h. maximale Hublänge des Schwingungsdämpfers bis zum Eingriff des Druckanschlags, wird passiv über die Hubbewegung erreicht.The Return movement the pressure stop to its initial position, d. H. maximum stroke length of the vibration until the pressure stop, becomes passively over the Lifting movement achieved.
Ein weiterer Vorteil der Erfindung besteht darin, dass der Kolben einen großen Querschnitt aufweist, und damit schon mit einem sehr kleinen Druck eine Verschiebebewegung des Kolbens erreicht werden kann. Des Weiteren tritt kein Hubverlust der Kolbenstange aufgrund der Verstelleinrichtung auf. An der konventionellen Befestigung des Druckanschlags müssen keine Veränderungen vorgenommen werden, so dass die Verstelleinrichtung als Zusatzbaugruppe einem Serienschwingungsdämpfer beigefügt werden kann.One Another advantage of the invention is that the piston a huge Has cross-section, and thus with a very small pressure a Displacement movement of the piston can be achieved. Furthermore occurs no loss of stroke of the piston rod due to the adjustment on. At the conventional attachment of the pressure stop no need changes be made so that the adjusting device as an additional module a series vibration damper be attached can.
Dabei ist vorgesehen, dass das Druckmittelausgleichsgehäuse den Druckmittelzylinder ringförmig umschließt.there is provided that the pressure compensating housing the Pressure medium cylinder annular encloses.
Im Hinblick auf eine sehr kompakte Bauweise weisen das Druckmittelausgleichsgehäuse und der Druckmittelzylinder einen gemeinsamen Deckel auf.in the With regard to a very compact design, the pressure compensating housing and the Pressure medium cylinder on a common cover.
Der Deckel des Druckmittelzylinders trägt ein Blockierventil zwischen dem Druckmittelzylinder und dem Druckmittelausgleichsgehäuse. Damit ist das Blockierventil sicher positioniert und auf der anderen Seite leicht für eine Steuerleitung zugänglich. Of the Lid of the pressure cylinder carries a blocking valve between the pressure cylinder and the Druckmittelausgleichsgehäuse. In order to the blocking valve is safely positioned and on the other side easy for a control line accessible.
In weiterer vorteilhafter Ausgestaltung weist der Druckmittelzylinder eine Stützhülse auf, die sich axial an dem Zylinder abstützt. Der Zylinder des Schwingungsdämpfers muss für die Verstelleinrichtung nicht besonders bearbeitet sein.In further advantageous embodiment, the pressure cylinder a support sleeve, which is axially supported on the cylinder. The cylinder of the vibration damper must for the Adjustment not be specially edited.
Gemäß einem Unteranspruch ist mit der Stützhülse ein Boden des Druckmittelzylinders verbunden, und ein Druckmittelrohrkörper mit einem zweiten Boden ist relativ zu der Stützhülse verschiebbar. Der Druckmittelkörper und der zweite Boden bilden praktisch den Kolben.According to one Subclaim is with the support sleeve Bottom of the pressure cylinder connected, and a pressure medium tube body with a second bottom is displaceable relative to the support sleeve. The pressure medium body and the second bottom is practically the piston.
An dem Kolben ist ein Distanzrohr mit einer Anschlagfläche für den Druckanschlag befestigt. Wenn die Anschlagfläche eingefahren ist, beeinträchtigt das Distanzrohr nicht den maximalen Einfederungsweg der Kolbenstange.At The piston is a spacer tube with a stop surface for the pressure stop attached. When the stop surface retracted, impaired the spacer tube does not have the maximum compression travel of the piston rod.
Es ist vorgesehen, dass die Anschlagfläche von einer ringförmigen Anschlagplatte gebildet wird, so dass die Flächenpressung am Druckanschlag minimiert ist.It is provided that the abutment surface of an annular stop plate is formed, so that the surface pressure is minimized at the pressure stop.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden:Based The following description of the figures is intended to explain the invention in more detail:
Es zeigt:It shows:
Die
Der
Einsatzpunkt des Druckanschlags
Der
Deckel
Der
Druckmittelzylinder
An
dem als Kolben fungierenden zweiten Boden
Die
Zur
Druckmittelversorgung des Druckmittelzylinders
Bei
geöffnetem
Blockierventil
Wenn
wieder die volle uneingeschränkte
Einfahrlänge
der Kolbenstange
Soll
die Anschlagfläche
Im Normalbetrieb kann das Ventil ohne Energieeinsatz betrieben werden, die Rückführbewegung der Anschlagfläche zwar möglich ist, eine Ausfahrbewegung in Richtung des Druckanschlags aber durch das erste Rückschlagventil verhindert wird.in the Normal operation, the valve can be operated without energy use, the return movement of the stop surface although possible is an extension movement in the direction of the pressure stop but through the first check valve is prevented.
- 11
- Schwingungsdämpfervibration
- 33
- Zylindercylinder
- 55
- Kolbenstangepiston rod
- 77
- Anschlagringstop ring
- 99
- Stirnfläche am ZylinderFace on the cylinder
- 1111
- Druckanschlagjounce
- 1313
- DruckmittelzylinderPressure cylinder
- 1515
- DruckmittelausgleichsgehäusePressure equalizing housing
- 1717
- Deckelcover
- 1919
- Blockierventilblocking valve
- 2121
- Radialkanalradial channel
- 2323
- Stützhülsesupport sleeve
- 2525
- Randedge
- 2727
- Bodenground
- 2929
- zweiter Bodensecond ground
- 3131
- DruckmittelrohrkörperPressure fluid pipe body
- 3333
- Distanzrohrspacer tube
- 3535
- Anschlagflächestop surface
- 3737
- Anschlagplattestop plate
- 39; 4139; 41
- DruckmittelleitungPressure medium line
- 43; 4543; 45
- Rückschlagventilcheck valve
- 4747
- Sicherungsringcirclip
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041567 DE102008041567B3 (en) | 2008-08-26 | 2008-08-26 | Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810041567 DE102008041567B3 (en) | 2008-08-26 | 2008-08-26 | Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008041567B3 true DE102008041567B3 (en) | 2010-04-01 |
Family
ID=41720088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810041567 Expired - Fee Related DE102008041567B3 (en) | 2008-08-26 | 2008-08-26 | Vibration damper has cylinder in which piston rod is guided in axially movable manner and impact stop of drive-in motion counteracts from defined drive-in position of piston rod |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008041567B3 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19731139A1 (en) * | 1997-07-21 | 1999-02-11 | Mannesmann Sachs Ag | Piston-cylinder unit between vehicle body and wheel guide |
DE19935865A1 (en) * | 1999-07-30 | 2001-02-01 | Audi Ag | Arrangement for altering spring rating has adjustment unit with which stop buffer acting as auxiliary spring can be brought into action earlier or later depending on defined vehicle states |
DE10121918A1 (en) * | 2001-05-05 | 2002-11-28 | Daimler Chrysler Ag | Spring/shock absorber system for a vehicle comprises a spring element and a shock absorber element arranged between the vehicle construction and a pull rod guiding or supporting a wheel |
DE10245362A1 (en) * | 2002-09-28 | 2004-04-08 | Dr.Ing.H.C. F. Porsche Ag | Adjustable shock absorber for motor vehicles |
DE10324993A1 (en) * | 2003-02-14 | 2004-12-23 | Bayerische Motoren Werke Ag | Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder |
DE102004019991A1 (en) * | 2004-04-23 | 2005-11-17 | Volkswagen Ag | Wheel suspension system with a vibration damper comprises a controllable piston assembly allowing the support point of the additional spring on the piston rod to be adjusted |
DE102006056760A1 (en) * | 2006-12-01 | 2008-06-05 | Audi Ag | Height adjustment device for wheel suspensions of motor vehicles |
-
2008
- 2008-08-26 DE DE200810041567 patent/DE102008041567B3/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19731139A1 (en) * | 1997-07-21 | 1999-02-11 | Mannesmann Sachs Ag | Piston-cylinder unit between vehicle body and wheel guide |
DE19935865A1 (en) * | 1999-07-30 | 2001-02-01 | Audi Ag | Arrangement for altering spring rating has adjustment unit with which stop buffer acting as auxiliary spring can be brought into action earlier or later depending on defined vehicle states |
DE10121918A1 (en) * | 2001-05-05 | 2002-11-28 | Daimler Chrysler Ag | Spring/shock absorber system for a vehicle comprises a spring element and a shock absorber element arranged between the vehicle construction and a pull rod guiding or supporting a wheel |
DE10245362A1 (en) * | 2002-09-28 | 2004-04-08 | Dr.Ing.H.C. F. Porsche Ag | Adjustable shock absorber for motor vehicles |
DE10324993A1 (en) * | 2003-02-14 | 2004-12-23 | Bayerische Motoren Werke Ag | Vehicle suspension system, has pneumatic spring reservoir provided in expansion tank to generate preloading to be applied on piston of strut cylinder |
DE102004019991A1 (en) * | 2004-04-23 | 2005-11-17 | Volkswagen Ag | Wheel suspension system with a vibration damper comprises a controllable piston assembly allowing the support point of the additional spring on the piston rod to be adjusted |
DE102006056760A1 (en) * | 2006-12-01 | 2008-06-05 | Audi Ag | Height adjustment device for wheel suspensions of motor vehicles |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130301 |