FR2560325A1 - SHOCK ABSORBER FOR VEHICLE SUSPENSIONS - Google Patents
SHOCK ABSORBER FOR VEHICLE SUSPENSIONS Download PDFInfo
- Publication number
- FR2560325A1 FR2560325A1 FR8502686A FR8502686A FR2560325A1 FR 2560325 A1 FR2560325 A1 FR 2560325A1 FR 8502686 A FR8502686 A FR 8502686A FR 8502686 A FR8502686 A FR 8502686A FR 2560325 A1 FR2560325 A1 FR 2560325A1
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- FR
- France
- Prior art keywords
- damping
- valve
- piston
- sensor
- working
- 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.)
- Granted
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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
- B60G17/015—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 the regulating means comprising electric or electronic elements
- B60G17/0152—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 the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
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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
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/32—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
UNE SUSPENSION DE VEHICULE EST POURVUE D'UNE REGULATION D'AMORTISSEMENT ELECTRONIQUE INTELLIGENTE, QUI PERMET D'OPTIMISER LE CONFORT, LA SECURITE ET LA TENUE DE ROUTE SANS APPORT D'ENERGIE EXTERIEURE. LE DISPOSITIF ELECTRONIQUE EST COMBINE AVEC UN OU PLUSIEURS CAPTEURS, DETECTANT NOTAMMENT LES DEBATTEMENTS DE LA SUSPENSION, ET AGIT SUR UNE ELECTROVANNE 19 QUI REGLE LA SECTION D'ECOULEMENT DU FLUIDE D'AMORTISSEMENT DANS UN PASSAGE 17 ENTRE LES DEUX CHAMBRES 6, 7 DES AMORTISSEURS HYDRAULIQUES TELESCOPIQUES.A VEHICLE SUSPENSION IS PROVIDED WITH INTELLIGENT ELECTRONIC DAMPING REGULATION, WHICH OPTIMIZES COMFORT, SAFETY AND HANDLING WITHOUT SUPPLY OF EXTERNAL ENERGY. THE ELECTRONIC DEVICE IS COMBINED WITH ONE OR MORE SENSORS, DETECTING IN PARTICULAR SUSPENSION MOVEMENTS, AND ACTS ON A SOLENOID VALVE 19 WHICH ADJUSTS THE DAMPER FLOW SECTION IN A PASSAGE 17 BETWEEN THE TWO CHAMBERS 6, 7 OF THE SHOCK ABSORBERS HYDRAULICS TELESCOPIC.
Description
L'invention concerne un système d'amortissementThe invention relates to a damping system.
d'oscillations pour véhicules, comprenant au moins un organe d'amor- oscillations for vehicles, comprising at least one damper
tissement entre une roue et la carrosserie du véhicule, qui présente une chambre de travail destinée à recevoir du fluide d'amortissement et qu'un piston partage en deux parties de chambre qui sont reliées weaving between a wheel and the vehicle body, which has a working chamber intended to receive damping fluid and which a piston divides into two chamber parts which are connected
l'une à l'autre à travers au moins une soupape d'amortissement. to each other through at least one damping valve.
On connaît des amortisseurs hydrauliques téles- Hydraulic shock absorbers are known
copiques (voir par exemple les brevets allemands DE-PS 26 55 705, DE-PS 27 44 301) o une chambre de travail est partagée par un piston d'amortissement en deux parties de chambre et o ce piston porte les soupapes - de type mécanique - nécessaires pour produire copics (see for example the German patents DE-PS 26 55 705, DE-PS 27 44 301) o a working chamber is divided by a damping piston in two parts of the chamber and o this piston carries the valves - type mechanical - necessary to produce
l'effort d'amortissement. Un tel amortisseur classique a l'incon- the amortization effort. Such a conventional shock absorber has the incon-
vénient que sa caractéristique d'amortissement, adaptée au type de véhicule, est invariable et doit par conséquent réaliser un its damping characteristic, adapted to the type of vehicle, is invariable and must therefore achieve a
compromis pour différentes conditions de marche. Un tel amortisse- compromise for different walking conditions. Such amortization
ment des oscillations d'un véhicule par amortisseurs télescopiques est fortement limité dans ses propriétés pendant le service, ce qui est encore aggravé par le fait que le système d'amortissement ment of the oscillations of a vehicle by telescopic shock absorbers is greatly limited in its properties during service, which is further aggravated by the fact that the damping system
est influencé par les différents états de charge du véhicule. is influenced by the different load states of the vehicle.
On connaît aussi un procédé pour l'amortissement actif des oscillations (voir par exemple la demande de brevet allemand DE-OS 27 38 455) o l'effort d'amortissement peut être adapté. Cette solution a toutefois l'inconvénient que les pertes d'amortissement doivent être compensées par une pompe externe. Un tel système avec amenée d'énergie de l'extérieur exige un système hydraulique supplémentaire à source d'alimentation extérieure, de sorte qu'il devient très coûteux. De nombreux types de véhicules ne possèdent pas un tel système hydraulique supplémentaire et certains n'en permettent m8me pas l'installation. De plus, en cas de panne de cette pompe externe, la sécurité de marche n'est plus A method is also known for the active damping of oscillations (see for example the German patent application DE-OS 27 38 455) where the damping force can be adapted. However, this solution has the disadvantage that the depreciation losses must be compensated by an external pump. Such a system with external energy supply requires an additional hydraulic system with an external power source, so that it becomes very expensive. Many types of vehicles do not have such an additional hydraulic system and some do not even allow installation. In addition, in case of failure of this external pump, the running safety is no longer
assurée puisque tout le système d'amortissement est alors défaillant. assured since the entire damping system is then faulty.
Partant de cet état de la technique, l'invention Starting from this state of the art, the invention
vise à doter un système d'amortissement pour véhicule d'une adapta- aims to provide a vehicle damping system with an
tion de l'amortissement qui soit variable, a comsmande électronique intelligente et permette, sans apport d'énergie extérieure, d'optimiser le confort, la sécurité et la tenue de route pendant la variable damping, with intelligent electronic control and allows, without external energy input, to optimize comfort, safety and handling during
marche du véhicule.vehicle running.
A cet effet, selon l'invention, un système d'amortissement comme défini au début est caractérisé en ce que l'une au moins des soupapes d'amortissement est réalisée comme To this end, according to the invention, a damping system as defined at the start is characterized in that at least one of the damping valves is produced as
une vanne commandée par un dispositif électronique adapté. a valve controlled by a suitable electronic device.
Cette solution a l'avantage que la vanne d'amor- tissement peut être adaptée par voie électronique a l'état de la route et du véhicule. Les soupapes mécaniques qui restent et qui servent & l'amortissement de base, assurent la sécurité de marche This solution has the advantage that the damping valve can be adapted electronically to the condition of the road and the vehicle. The mechanical valves which remain and which serve as the basic damping, ensure operating safety
dans le cas d'une défaillance éventuelle du dispositif électronique. in the event of a possible failure of the electronic device.
Un autre avantage est qu'une telle régulation permet en même temps de compenser l'usure et les tolérances de fabrication, de même que Another advantage is that such regulation makes it possible at the same time to compensate for wear and manufacturing tolerances, as well as
les variations en fonction de la température du système d'amortis- variations depending on the temperature of the damping system
sement. Selon une autre caractéristique essentielle, le dispositif électronique est attaqué par au moins un capteur qui détecte les amplitudes de mouvement entre la roue et la carrosserie sement. According to another essential characteristic, the electronic device is attacked by at least one sensor which detects the amplitudes of movement between the wheel and the bodywork
du véhicule. Il est possible de prévoir une adaptation supplémen- of the vehicle. It is possible to provide additional adaptation
taire de la vanne, et par suite de l'ensemble du système d'amortis- shut off the valve, and as a result of the entire damping system
sement, en utilisant un capteur supplémentaire pour détecter un ou plusieurs autres paramètres. Il peut s'agir de l'état de charge du véhicule, de son état de marche, de sa vitesse ou encore de la using an additional sensor to detect one or more other parameters. It can be the state of charge of the vehicle, its running state, its speed or even the
température dans le système par exemple. temperature in the system for example.
On peut également obtenir une réalisation sans problèmes du système d'amortissement grâce au fait que les valeurs relevées sur l'essieu avant peuvent être utilisées comme signaux pour l'essieu arrière. La prévision de plusieurs capteurs permet The damping system can also be achieved without problems by virtue of the fact that the values recorded on the front axle can be used as signals for the rear axle. The forecast of several sensors allows
en outre de créer un système d'asservissement a plusieurs variables. in addition to create a servo system with several variables.
Une autre caractéristique de l'invention prévoit que la vanne est disposée à l'extérieur de la chambre de travail Another characteristic of the invention provides that the valve is arranged outside the working chamber
de l'organe d'amortissement. On peut alors utiliser une construc- of the damping device. We can then use a construct
tion modulaire, permettant le cas échéant l'application ultérieure de la solution selon l'invention a un système d'amortissement existant si la construction de base de celui-ci le permet. Lorsque le principe d'une telle construction est appliqué dès le départ, modular tion, allowing if necessary the subsequent application of the solution according to the invention to an existing damping system if the basic construction thereof allows it. When the principle of such a construction is applied from the start,
on peut en outre obtenir un montage simple de l'ensemble du sys- it is also possible to obtain a simple assembly of the entire system.
tème d'amortissement.amortization teme.
Selon un autre mode de réalisation proféré, la vanne coopère avec des soupapes d'étranglement installées dans According to another embodiment, the valve cooperates with throttle valves installed in
la chambre de travail et/ou dans le fond de l'organe d'amortissement. the working chamber and / or in the bottom of the damping member.
Un système d'amortissement classique peut ainsi être rendu variable par l'addition de la vanne à commande électronique. A conventional damping system can thus be made variable by the addition of the electronically controlled valve.
Un autre mode de réalisation prévoit la dispo- Another embodiment provides the provision
sition de la vanne dans le piston ou à proximité de celui-ci. La vanne est également conformée dans ce cas de manière que sa section position of the valve in or near the piston. The valve is also shaped in this case so that its cross-section
d'écoulement ou section d'amortissement puisse être variée.électro- flow or damping section can be varied.
niquement.only.
Le capteur peut détecter le déplacement du piston et être installé à l'intérieur du cylindre de travail, ce The sensor can detect the displacement of the piston and be installed inside the working cylinder, this
qui donne un système compact. La géométrie des organes d'amortis- which gives a compact system. The geometry of the shock absorbers
sement peut dans ce cas être exploitée de façon avantageuse en utilisant un condensateur tubulaire comme capteur de déplacement du piston fournissant les signaux de mesure nécessaires. Un tel capteur peut âtre installé dans la tige de piston creuse du piston d'amortissement. Selon un perfectionnement de l'invention, pour obtenir un système d'asservissement à plusieurs variables, on prévoit au moins un capteur pour détecter une grandeur telle que l'effort d'amortissement, le déplacement du piston, sa vitesse, son accé1ératî, In this case, it can advantageously be used by using a tubular capacitor as a piston displacement sensor providing the necessary measurement signals. Such a sensor can be installed in the hollow piston rod of the damping piston. According to an improvement of the invention, to obtain a servo system with several variables, at least one sensor is provided to detect a quantity such as the damping force, the displacement of the piston, its speed, its acceleration,
la fréquence des oscillations, la température et ainsi de suite. the frequency of the oscillations, the temperature and so on.
ainsi que pour délivrer des signaux de mesure utilisés par le dis- as well as to deliver measurement signals used by the device
positif électronique pour agir sur la vanne de la manière désirée. positive electronic to act on the valve in the desired way.
Il s'est avéré particulièrement avantageux d'utiliser une vanne It has proven particularly advantageous to use a valve
réglable à action proportionnelle. adjustable with proportional action.
D'autres caractéristiques et avantages de l'inven- Other features and advantages of the invention
tion ressortiront plus clairement de la description qui va suivre tion will emerge more clearly from the description which follows
de plusieurs exemples de réalisation préférés mais nullement limi- of several preferred embodiments but in no way limited
tatifs, ainsi que des dessins annexés, sur lesquels: - la figure 1 est une coupe axiale d'un organe d'amortissement comportant une électrovanne à commande électronique; tatives, as well as the accompanying drawings, in which: - Figure 1 is an axial section of a damping member comprising an electronically controlled solenoid valve;
- la figure 2 est une coupe analogue d'un amor- - Figure 2 is a similar section of an amor-
tisseur bitube dont le principe correspond a l'organe d'amortissement twin-tube weaver whose principle corresponds to the damping member
2560'3252,560,325
représenté sur la figure 1, sauf que le fluide d'amortissement circule dans un sens seulement; shown in Figure 1, except that the damping fluid flows in one direction only;
- la figure 3 est une coupe analogue d'un amor- - Figure 3 is a similar section of an amor-
tisseur bitube dont le principe correspond à celui de figure 2 et qui comporte un capteur intégré dans la tige de piston creuse; et twin-tube weaver, the principle of which corresponds to that of FIG. 2 and which includes a sensor integrated in the hollow piston rod; and
- la firure 4 est une coupe analogue d'un amor- - firm 4 is a similar section of an amor-
tisseur bitube dont le principe correspond également à celui de twin-tube weaver whose principle also corresponds to that of
figure 2, mais o l'électrovanne est installée sur le c8té. Figure 2, but where the solenoid valve is installed on the side.
La figure 1 montre schématiquement un organe d'amortissement qui se compose essentiellement d'un corps 1, attaché Figure 1 schematically shows a damping member which essentially consists of a body 1, attached
par un dispositif de fixation 2 à un organe de guidage non repré- by a fixing device 2 to a guide member not shown
senté d'une roue de véhicule, et d'une tige de piston 3 qui est felt from a vehicle wheel, and from a piston rod 3 which is
attachée par un dispositif de fixation 4 à la carrosserie du véhi- attached by a fastening device 4 to the vehicle body-
cule. Le piston d'amortissement 8, solidaire de la tige de piston 3, partage l'intérieur du cylindre de travail 5 en une chambre de cule. The damping piston 8, integral with the piston rod 3, divides the interior of the working cylinder 5 into a
travail supérieure 6 et une chambre de travail inférieure 7. upper work 6 and a lower work chamber 7.
Le piston 8 est équipé d'une soupape d'amor- The piston 8 is fitted with a priming valve.
tissement de compression 9 et d'une soupape d'amortissement de traction ou de détente 10. Dans le fond 11 du cylindre de travail compression weaving 9 and a traction or expansion damping valve 10. In the bottom 11 of the working cylinder
sont incorporées une soupape d'amortissement de compression supplé- an additional compression damping valve is incorporated
mentaire 12 et une soupape antiretour 13. Le volume refoulé par la tige de piston 3 pénètre à travers des orifices 14 dans une chambre 12 and a non-return valve 13. The volume discharged by the piston rod 3 penetrates through orifices 14 in a chamber
de compensation 15.compensation 15.
L'espace annulaire 16 situé à l'extérieur de la chambre de compensation 15 communique à travers des canaux 17 et 18 avec la chambre de travail supérieure 6 et la chambre de The annular space 16 located outside the compensation chamber 15 communicates through channels 17 and 18 with the upper working chamber 6 and the
compensation 15, cette dernière communiquant à travers les ori- compensation 15, the latter communicating through the ori-
fices 14 et la soupape antiretour 13 avec la chambre de travail inférieure 7. Sur la communication entre l'espace annulaire 16 et la chambre inférieure 7 peut agir, dans le canal 17, par un prolongement 20 de son armature, une électrovanne d'amortissement 19 à commande électronique. Celle-ci se compose d'une armature mobile 21 avec le prolongement 20, d'une bobine 22, d'un ressort 31 et de connexions 23. Suivant l'excitation électrique de sa bobine, cette électrovanne ferme plus ou moins le canal 17 par le prolongement 20 de son armature, permettant ainsi une circulation de liquide d'amortissement variable. L'êlectrovanne 19 est montée dans un fices 14 and the non-return valve 13 with the lower working chamber 7. On the communication between the annular space 16 and the lower chamber 7 can act, in the channel 17, by an extension 20 of its frame, a damping solenoid valve 19 electronically controlled. This consists of a movable frame 21 with the extension 20, a coil 22, a spring 31 and connections 23. Depending on the electrical excitation of its coil, this solenoid valve more or less closes the channel 17 by the extension 20 of its frame, thus allowing a circulation of variable damping liquid. The solenoid valve 19 is mounted in a
logement 24 et peut baigner dans le fluide d'amortissement. housing 24 and can be immersed in the damping fluid.
LV'lectrovanne d'amortissement 19 est commandée The damping solenoid valve 19 is ordered
par le dispositif électronique (non représenté) à travers les con- by the electronic device (not shown) through the con-
lnexions 23 et en fonction des paramètres relevé,s ce qui permet d'obtenir une caract4ristique d'amortissement déterminée, suivant la position qu'occupe le prolongement 20 de l'armature dans le canal 17, donc suivant la section d'écoulement qui subsiste dans lnexions 23 and depending on the parameters noted, s which makes it possible to obtain a determined damping characteristic, depending on the position occupied by the extension 20 of the armature in channel 17, therefore according to the flow section which remains in
ce canal.this channel.
La partie supérieure 27 de la chambre de com- The upper part 27 of the control chamber
pensetion 15 peut être remplie d'un fluide gazeux, lequel peut Zre sous pression ou non, auivant les besoins et les fonctions pensetion 15 can be filled with a gaseous fluid, which can be pressurized or not, according to needs and functions
s assurer par l'organe d'amortissement. Ensure by the damping device.
La figure 2 montre uu exemple de réalisation dont le principe co respond P. celui de figure 1, maia dont le piston 8 porte sculemet uu'e soupapse stiretour 25 et dont le fond Il est dgalement pouryu seulement d'une soupape antiretour 26, de norte que le fude aortisament ne peut circuler que dans un s:ns. Plus pri t. ?e fluide circule de la chambre de travail supérieure $ 5 trave$s le canal 18 et 'espace annulaire 16, le canal 17. devant l'lectrovanne d'amortissement 19, puis dans la chambre de travail infUrienra 7. La cireulation du fluide dans FIG. 2 shows an exemplary embodiment, the principle of which corresponds to that of FIG. 1, maia whose piston 8 carries a scuplet uu'e stirapse valve 25 and whose bottom It is also only for a non-return valve 26, of norte that the fude aortisament can circulate only in one s: ns. More pri t. Fluid circulates from the upper working chamber $ 5 through channel 18 and the annular space 16, channel 17. in front of the damping solenoid valve 19, then in the working chamber infUrienra 7. Fluid circulation in
nez organe d=amortissememn Cat importante car la régulation propre- nose cushioning element Cat important because proper regulation-
ment dite le P'amortissement s'effectue dans ce cas exclusivement par In this case, the amortization is carried out exclusively by
la variation de la section d'écoulement au moyen de l'électrovanne 19. the variation of the flow section by means of the solenoid valve 19.
La chambre d'égalisation 15 peut &tre remplie dans sa partie supé- The equalization chamber 15 can be filled in its upper part.
rieure 27 avec un fluide gazeux, pouvant &tre sous pression ou non, 27 with a gaseous fluid, which may or may not be under pressure,
suivant les besoins et les fonctions à sccomplir. according to the needs and functions to be accomplished.
La figure 3 montre un exemple de réalisation dont le principe correspond à celui de figure 2, à ceci près que la tige de piston 3 possède un volume intérieur 28 dans lequel est logé un capteur 29. Par les connexions 30, ce capteur applique FIG. 3 shows an exemplary embodiment, the principle of which corresponds to that of FIG. 2, except that the piston rod 3 has an internal volume 28 in which a sensor 29 is housed. By the connections 30, this sensor applies
les paramètres mesurés par lui au dispositif électronique, com- the parameters measured by him at the electronic device,
mandant à son tour l'électrovanne d'amortissement 19 par les con- in turn mandating the damping solenoid valve 19 by the con-
nexions 23. Le capteur 29 peut ftre réalisé à la façon d'un conden- connections 23. The sensor 29 can be made in the manner of a conden-
sateur tubulaire dont les parties tubulaires forment un demi-pont capacitif. tubular sator whose tubular parts form a capacitive half-bridge.
2S603252S60325
La figure 4 montre également un exemple de réalisation dont le principe correspond à celui de la figure 2, sauf que l'électrovanne d'amortissement 19 est installée à c8té de l'axe longitudinal de l'organe et que ce dernier ne comporte pas d'espace tubulaire 16 autour de la chambre de compensation 15. Le canal 17, sur lequel agit l'dlectrovanne 19, établit dans ce cas une communication entre la chambre de travail supérieure 6 et la chambre de compensation 15. Cette dernière communique en bas par les orifices 14 et la soupape antiretour 26 avec la chambre de FIG. 4 also shows an exemplary embodiment, the principle of which corresponds to that of FIG. 2, except that the damping solenoid valve 19 is installed close to the longitudinal axis of the member and that the latter does not include any tubular space 16 around the compensation chamber 15. The channel 17, on which the solenoid valve 19 acts, in this case establishes communication between the upper working chamber 6 and the compensation chamber 15. The latter communicates below by the orifices 14 and the non-return valve 26 with the
travail inférieure 7. La constitution de l'électrovanne d'amor- lower work 7. The constitution of the priming solenoid valve
tissement 19 elle-mâme correspond à celle des exemples précédents. weaving 19 itself corresponds to that of the preceding examples.
Liste des références 1 - Corps 2 - Dispositif de fixation 3 - Tige de piston 4 - Dispositif de fixation - Cylindre de travail 6 - Chambre de travail supdrieure 7 - Chambre de travail inférieure 8 - Piston d'amortissement 9 - Soupape d'amortissement de compression - Soupape d'amortissement de traction ou de détente 11- Fond 12 - Soupape d'amortissement de compression 13 - Soupape antiretour 14 - Perçages Chambre de compensation 16 - Espace annulaire 17 - Canaux 18 - Canaux 19 Soupape d'amortissement - Prolongement d'armature 21 - Armature 22 Bobine 23 - Connexions 24 - Logement d'amature - Soupape antiretour 26 Soupape antiretour 27 - Partie supérieure de la chambre de compensation 28 - Intérieur creux 29 - Capteur - Connexions 31 - Ressort List of references 1 - Body 2 - Fixing device 3 - Piston rod 4 - Fixing device - Working cylinder 6 - Upper working chamber 7 - Lower working chamber 8 - Damping piston 9 - Damping valve of compression - Traction or rebound damping valve 11- Bottom 12 - Compression damping valve 13 - Non-return valve 14 - Drilling Compensation chamber 16 - Annular space 17 - Channels 18 - Channels 19 Damping valve - Extension d armature 21 - Armature 22 Coil 23 - Connections 24 - Amature housing - Non-return valve 26 Non-return valve 27 - Upper part of the compensation chamber 28 - Hollow interior 29 - Sensor - Connections 31 - Spring
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843406875 DE3406875A1 (en) | 1984-02-25 | 1984-02-25 | VIBRATION DAMPER FOR VEHICLES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2560325A1 true FR2560325A1 (en) | 1985-08-30 |
FR2560325B1 FR2560325B1 (en) | 1992-10-23 |
Family
ID=6228815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8502686A Expired - Lifetime FR2560325B1 (en) | 1984-02-25 | 1985-02-25 | SHOCK ABSORBER FOR VEHICLE SUSPENSIONS |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS60183217A (en) |
DE (1) | DE3406875A1 (en) |
FR (1) | FR2560325B1 (en) |
GB (1) | GB2154700B (en) |
IT (2) | IT1183374B (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2569800A1 (en) * | 1984-09-04 | 1986-03-07 | Boge Gmbh | ADJUSTABLE DAMPING VALVE FOR HYDRAULIC SHOCK ABSORBER, PARTICULARLY FOR MOTOR VEHICLE |
FR2570782A1 (en) * | 1984-09-22 | 1986-03-28 | Boge Gmbh | ADJUSTABLE HYDRAULIC SHOCK ABSORBER, ESPECIALLY FOR MOTOR VEHICLES |
FR2588343A1 (en) * | 1985-10-03 | 1987-04-10 | Boge Gmbh | OSCILLATION DAMPING SYSTEM WITH AT LEAST ONE ADJUSTABLE HYDRAULIC SHOCK ABSORBER FOR VEHICLES |
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FR2652314A1 (en) * | 1989-09-23 | 1991-03-29 | Bosch Gmbh Robert | DAMPING SYSTEM COMPRISING A DAMPER COMPLETELY FILLED WITH AT LEAST ONE PRESSURE FLUID AND HAVING A COMPENSATION CHAMBER. |
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DE3609862A1 (en) * | 1986-03-22 | 1987-10-01 | Boge Gmbh | ADJUSTABLE SHOCK ABSORBER |
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US10479160B2 (en) | 2017-06-06 | 2019-11-19 | Tenneco Automotive Operating Company Inc. | Damper with printed circuit board carrier |
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DE102017216919A1 (en) | 2017-09-25 | 2019-03-28 | Zf Friedrichshafen Ag | Adjustable vibration damper |
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1985
- 1985-02-19 IT IT19569/85A patent/IT1183374B/en active
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- 1985-02-25 FR FR8502686A patent/FR2560325B1/en not_active Expired - Lifetime
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Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2569800A1 (en) * | 1984-09-04 | 1986-03-07 | Boge Gmbh | ADJUSTABLE DAMPING VALVE FOR HYDRAULIC SHOCK ABSORBER, PARTICULARLY FOR MOTOR VEHICLE |
FR2570782A1 (en) * | 1984-09-22 | 1986-03-28 | Boge Gmbh | ADJUSTABLE HYDRAULIC SHOCK ABSORBER, ESPECIALLY FOR MOTOR VEHICLES |
EP0215315A3 (en) * | 1985-09-14 | 1987-06-03 | Robert Bosch Gmbh | Suspension for vehicles |
FR2588343A1 (en) * | 1985-10-03 | 1987-04-10 | Boge Gmbh | OSCILLATION DAMPING SYSTEM WITH AT LEAST ONE ADJUSTABLE HYDRAULIC SHOCK ABSORBER FOR VEHICLES |
EP0297194A1 (en) * | 1987-06-19 | 1989-01-04 | La Industrial Plastica Y Metalurgica, S.A. | Variable rate shock absorber |
FR2628167A1 (en) * | 1988-03-05 | 1989-09-08 | Boge Ag | ADJUSTABLE HYDRAULIC SHOCK ABSORBER |
WO1989009891A1 (en) * | 1988-04-06 | 1989-10-19 | Koni B.V. | Twin-pipe shock absorber |
US5423402A (en) * | 1988-04-06 | 1995-06-13 | Koni, B.V. | Twin-pipe shock absorber |
US5467852A (en) * | 1988-04-06 | 1995-11-21 | Koni, B.V. | Twin-pipe shock absorber |
FR2635364A1 (en) * | 1988-08-11 | 1990-02-16 | Teves Gmbh Alfred | ADJUSTABLE HYDRAULIC VIBRATION DAMPER FOR A MOTOR VEHICLE |
US5143185A (en) * | 1988-08-11 | 1992-09-01 | Alfred Teves Gmbh | Controllable hydraulic vibration damper for automotive vehicles |
EP0367949A2 (en) * | 1988-11-08 | 1990-05-16 | Daimler-Benz Aktiengesellschaft | Springing system for vehicles |
EP0367949A3 (en) * | 1988-11-08 | 1990-12-05 | Daimler-Benz Aktiengesellschaft | Springing system for vehicles |
FR2652314A1 (en) * | 1989-09-23 | 1991-03-29 | Bosch Gmbh Robert | DAMPING SYSTEM COMPRISING A DAMPER COMPLETELY FILLED WITH AT LEAST ONE PRESSURE FLUID AND HAVING A COMPENSATION CHAMBER. |
US6244398B1 (en) | 1997-05-15 | 2001-06-12 | K2 Bike Inc. | Shock absorber with variable bypass damping |
EP0908333A1 (en) * | 1997-10-06 | 1999-04-14 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Apparatus for controlling pivoting of axles in industrial vehicles |
US6290245B1 (en) | 1997-10-06 | 2001-09-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Apparatus for controlling pivoting of axles in industrial vehicles |
WO1999025989A3 (en) * | 1997-11-14 | 1999-09-02 | K2 Bike Inc | Shock absorber with variable bypass damping |
WO1999025989A2 (en) * | 1997-11-14 | 1999-05-27 | K2 Bike, Inc. | Shock absorber with variable bypass damping |
US6382370B1 (en) | 1999-09-01 | 2002-05-07 | K2 Bike, Inc. | Shock absorber with an adjustable lock-out value and two-stage flow restriction |
US11346422B2 (en) | 2001-08-30 | 2022-05-31 | Fox Factory, Inc. | Front bicycle suspension assembly with inertia valve |
US10316924B2 (en) | 2001-08-30 | 2019-06-11 | Fox Factory, Inc. | Front bicycle suspension assembly with inertia valve |
US9746049B2 (en) | 2006-04-02 | 2017-08-29 | Fox Factory, Inc. | Suspension damper having inertia valve and user adjustable pressure-relief |
US9261163B2 (en) | 2006-04-02 | 2016-02-16 | Fox Factory, Inc. | Suspension damper having inertia valve and user adjustable pressure-relief |
US10359092B2 (en) | 2006-04-02 | 2019-07-23 | Fox Factory, Inc. | Suspension damper having inertia valve and user adjustable pressure-relief |
US11085503B2 (en) | 2006-04-02 | 2021-08-10 | Fox Factory, Inc. | Suspension damper having inertia valve and user adjustable pressure-relief |
US8607942B2 (en) | 2006-04-02 | 2013-12-17 | Fox Factory, Inc. | Suspension damper having inertia valve and user adjustable pressure-relief |
WO2019211215A1 (en) * | 2018-05-03 | 2019-11-07 | Zf Friedrichshafen Ag | Vibration damper having adjustable damping valve |
US11692606B2 (en) | 2018-05-03 | 2023-07-04 | Zf Friedrichshafen Ag | Vibration damper having adjustable damping valve |
FR3101809A1 (en) * | 2019-10-09 | 2021-04-16 | Hutchinson | Anti-roll device for motor vehicles. |
Also Published As
Publication number | Publication date |
---|---|
IT8520830V0 (en) | 1985-02-19 |
IT8519569A0 (en) | 1985-02-19 |
GB8504666D0 (en) | 1985-03-27 |
FR2560325B1 (en) | 1992-10-23 |
IT1183374B (en) | 1987-10-22 |
JPS60183217A (en) | 1985-09-18 |
GB2154700B (en) | 1987-10-14 |
GB2154700A (en) | 1985-09-11 |
DE3406875A1 (en) | 1985-09-05 |
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