EP1225345B1 - Vérin hydraulique avec ressort à gaz - Google Patents

Vérin hydraulique avec ressort à gaz Download PDF

Info

Publication number
EP1225345B1
EP1225345B1 EP20020450006 EP02450006A EP1225345B1 EP 1225345 B1 EP1225345 B1 EP 1225345B1 EP 20020450006 EP20020450006 EP 20020450006 EP 02450006 A EP02450006 A EP 02450006A EP 1225345 B1 EP1225345 B1 EP 1225345B1
Authority
EP
European Patent Office
Prior art keywords
working
sealing wall
cylinder
piston
piston rod
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 - Lifetime
Application number
EP20020450006
Other languages
German (de)
English (en)
Other versions
EP1225345A1 (fr
Inventor
Gerhard Huber
Anita Moser
Klaus Schweiger
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.)
Hoerbiger Hydraulik GmbH
Original Assignee
Hoerbiger Hydraulik 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
Application filed by Hoerbiger Hydraulik GmbH filed Critical Hoerbiger Hydraulik GmbH
Publication of EP1225345A1 publication Critical patent/EP1225345A1/fr
Application granted granted Critical
Publication of EP1225345B1 publication Critical patent/EP1225345B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/064—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with devices for saving the compressible medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F15B11/0365—Tandem constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1476—Special return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/77—Control of direction of movement of the output member
    • F15B2211/7716—Control of direction of movement of the output member with automatic return

Definitions

  • the invention relates to a working cylinder, with a cylinder tube, at least two sealing walls that are axially spaced and stationary relative to the cylinder tube, a working piston with at least one sealing wall and at least one working space defined and shifted between two sealing walls by means of a pressure fluid can be, which pressure fluid via at least one connection per work space can be supplied and discharged, and one connected to the working piston and through at least one working piston rod sealingly passed through, wherein the cylinder tube over at least one of the stationary sealing walls extended and added a movable component in the extended section is caused by a gas volume in the extended section of the cylinder tube is acted upon by a force and through a sealing wall of the work space the piston rod, which is passed through in a sealing manner, acts on the working piston.
  • typically hydraulic working cylinders are known, which by additionally or alone in at least one direction of movement be acted upon by gas springs.
  • actuation arrangement described with a hydraulic working cylinder on a Side is prestressed by means of gas pressure to the extent that it is pressurized with or allows the hydraulic working medium to flow out on the other Side retraction or an actuation movement takes place even under load.
  • JP 60 237207 A is a working cylinder of the type specified described, in which in one direction of work exerted by the pressure fluid Force on the working piston is supported by a force which is supported by an external one Volume of gas is produced. But this is self-sufficient and also the compactness is not given, which is desirable for many areas of application. moreover Even with this construction, the fact that gas springs are not taken into account have a certain amount of leakage over their service life, so that gas in the Flows into the cylinder chamber and here the filling pressure of the Counteracting pressure builds up. This also causes in the cylinder space inflowed gas an undesirable softness of the system that is not an exact Actuation, especially no exact stop and emergency stop function possible makes. The gas would also remove a certain amount of working fluid from the cylinder express what amount should be put in the tank, what makes tank ventilation indispensable, as well as larger dimensions of the tank.
  • the object of the present invention was therefore a simple one and self-sufficient working cylinder, which as stated at the beginning with opposite the cylinder inner wall completely tight, stationary sealing walls for the work rooms is provided and still the support of the working medium caused extension and / or extension movement of the working cylinder by a gas spring without the disadvantages mentioned above.
  • the working cylinder according to the invention characterized in that the gas volume is completely enclosed within the cylinder tube and that at least one vent opening between the gas volume and the sealing wall of the work area with the surroundings combines. So that a gas spring is the same in the working cylinder in a simple manner integrated so that external gas tanks and connections from the working cylinder there can be avoided. Furthermore, this is very simple and compact working cylinder coupled to the gas spring in a manner in which the Working spaces of the working cylinder from the gas volume of the gas spring through one into the Ventilated room are separated from which this is due to the leak the gas spring escaping gas can flow into the environment and not in the system of working fluid of the working cylinder can get.
  • the elongated cylinder tube through another fixed sealing wall is tightly closed that it goes beyond this further fixed sealing wall extended and by a bottom or stop for the gas spring piston is completed, the at least one vent opening from the sealing wall of the work area and the other fixed sealing wall Connects space with the environment.
  • a fully functional gas spring is in integrated the cylinder according to the invention in such a way that their leakage any negative influence on the hydraulic system is prevented.
  • This Construction also offers the possibility of the gas spring on the rod side to arrange the working cylinder.
  • a very low manufacturing effort and good properties regarding the sealing of the gas volume offers a further embodiment of the invention, if soft, between the other fixed sealing wall and the floor Slidable component alone a gas spring piston rod with essentially over the Total length of the same cross-section that can be moved between the sealing wall and the floor is.
  • constructions according to the invention are also possible, in which the working cylinder and gas spring have separate piston rods, i.e. the gas spring piston rod and the working piston rod are separate components.
  • the gas spring piston rod which is guided through a sealing wall in certain relative positions of the working piston and gas spring piston rest on the working piston and this with a force in one of its directions of movement apply.
  • the working cylinder is advantageous Double-acting and are connections for the pressure fluid on both Provided sides of the working piston, which makes the working cylinder for one is suitable for a greater number of possible uses and its training and / or Entry movement can be supported by at least one gas spring.
  • the construction of the working cylinder is particularly simple in one embodiment, in which the at least one ventilation opening is worked out in the cylinder tube is.
  • the further sealing wall on the working piston rod is advantageously opposite side of the working piston provided and preferably forms at the same time the bottom of the working cylinder.
  • FIG. 1 shows a working cylinder according to the invention with the bottom side Integrated gas spring with gas spring piston in longitudinal section
  • Fig. 2 shows one Longitudinal section through a working cylinder with gas spring on the rod side and in one piece Piston rod
  • Fig. 3 is a longitudinal section through a working cylinder with rod-side Gas spring, but separate piston rods
  • Fig. 4 shows one Longitudinal section through a working cylinder with gas spring and bottom one-piece piston rod, but without gas spring piston.
  • the preferably hydraulic working cylinder of FIG. 1 consists of a Cylinder tube 1, a bottom 2 and a cover 3.
  • the bottom 2 is used for articulation of the working cylinder at a first articulation point and points to this, for example a hole 4 on.
  • the cover 3 in turn forms a stop for the in the cylinder barrel 1 displaceably mounted working piston 5, with which a working piston rod 6 connected and led out sealed by the cover 3, which Piston rod 6 with its rod head 7 for connecting the working cylinder is provided with a second articulation point, for example also over a bore 4.
  • Between the bottom 2 and the working piston 5 is in the cylinder tube 1 a sealing wall 8 used sealing, which the actual working cylinder limited.
  • the working piston 5 is thus between the sealing wall 8 and the Cover 3 displaceable by the action of a hydraulic medium, which between the sealing wall 8, the working piston 5 and the cover 3 defined work spaces 9 is supplied via connections 10 or is derived therefrom.
  • gas spring piston 11 Fixed between the substantially in the longitudinal center of the cylinder tube 1 used sealing wall 8 and the also stationary base 2 of the working cylinder is a gas spring piston 11 slidably inserted, which by a between this gas spring piston 11 and the bottom 2 enclosed gas volume in Space 12 is applied and such a force in the direction of the extension of the working piston rod 6 exercises.
  • This force is generated by means of the gas spring piston 11 connected gas spring piston rod 13 on the working piston 5 or the working piston rod 6 transferred.
  • the gas spring piston rod 13 is sealing through the sealing wall 8 into the between the sealing wall 8 and the working piston 5 defined working space 9 of the working cylinder and pushes - at least in certain relative positions of working piston 5 and gas spring piston 11 - against the working piston 5 or the working piston rod 6.
  • FIG. 2 Another embodiment of a working cylinder according to the invention 2 shows.
  • the gas spring arrangement with the changes explained below on the rod side of the working cylinder provided.
  • the working spaces 9 of the working cylinder are between the floor 2 and one stationary sealing wall arranged in the central longitudinal region of the cylinder tube 1 8 defines the limits between which the working piston 5 can be displaced is led.
  • the working piston rod 6 is sealed by the sealing wall 8 passed and also through the cover 3 of the working cylinder, which Cover 3 but now only a fixed stop for the gas spring piston 11.
  • This gas spring piston 11 is fixed in place on the working piston rod 6, which in this case also represents and acts on the gas spring piston rod this working piston rod 6 with a force caused by the gas volume that is in a space 12 between the gas spring piston 11 and another, stationary sealing wall 16 is included.
  • the working and gas spring piston rod at the same time 6 is also sealingly passed through the further sealing wall 16, this sealing wall 16 somewhat from the first stationary sealing wall 8 is spaced. Between these sealing walls 8 and 16 is the surrounding area Defined via at least one opening 14 ventilated space 15, in which from the Escaping gas spring assembly arrives immediately. So there is no back pressure is built up to the effect of the gas spring arrangement when gas from the space 12 the gas spring assembly exits the gas spring piston 11 on the rod side is also the space 17 between the gas spring piston 11 and the cover 3 of the working cylinder connected to the surroundings by means of at least one vent opening 18.
  • FIG. 3 shows a working cylinder with a construction very similar to that of FIG. 2 Integrated gas spring, but now no one-piece piston rod for working cylinders and gas spring is present, but these two parts are separate parts.
  • the gas spring piston 11, which in turn is arranged on the rod side, is provided with a gas spring piston rod 13 connected, which through the cover 3, again as a stop acting for the gas spring piston 11, passed and with the rod head 7 is provided for articulation at an articulation point.
  • the actual controllable operating force on the rod head 7 is generated by the working piston 5, which between the bottom 2 and the first fixed middle sealing wall 8 is displaceable by a hydraulic medium.
  • the Movement of the working piston 5 is via the working piston rod connected to this piston 5 6 on the gas spring piston 11 or the gas spring piston rod 13 transferred, with the working piston rod sealing through the middle stationary sealing wall 8 and the further stationary sealing wall 16 is passed through.
  • FIG. 4 is again similar to FIG. 1 and has also has a gas spring on the bottom. However, it is not a gas spring piston 11 available, but the piston rod 6 over the piston 5 extended towards the bottom 2 so far that they seal through the stationary Sealing wall 8 and another stationary sealing wall 16 passed through can be and in the defined between floor 2 and another sealing wall 16 Room 12 protrudes.
  • This space 12 contains the gas volume, which is the end face the piston rod 6 with the hydraulic movement of the piston rod 6 supporting gas spring force.
  • the one between the two sealing walls 8 and 16 defined space is via at least one vent 14 with the Connected environment, so that gas emerging through the sealing wall 16 in the Environment can flow out and not into the hydraulic system of the working cylinder can reach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)

Claims (9)

  1. Cylindre de travail comprenant un tube de cylindre (1), au moins deux parois d'étanchéité (8 et 2 ou 3) à distance axiale l'une de l'autre et stationnaires par rapport au tube de cylindre, un piston de travail (5) qui définit au moins un compartiment de travail (9) avec au moins une paroi d'étanchéité et qui peut être déplacé au moyen d'un fluide sous pression entre deux parois d'étanchéité, ledit fluide sous pression pouvant être amené et évacué via au moins un raccordement (10) pour chaque compartiment de travail, et une tige de piston de travail (6) reliée au piston de travail (5) et guidée de manière étanche à travers au moins une des parois d'étanchéité, le tube de cylindre (1) étant prolongé au-delà de l'une au moins des parois d'étanchéité stationnaires (8) et un composant mobile (6, 11) étant réceptionné dans le tronçon prolongé, ledit composant étant sollicité par une force en raison d'un volume de gaz (12) dans le tronçon prolongé du tube de cylindre, et agissant sur le piston de travail (5) via une tige de piston (6, 13) guidée de manière étanche à travers une paroi d'étanchéité (8) du compartiment de travail (9), caractérisé en ce que le volume de gaz (12) est enfermé complètement à l'intérieur du tube de cylindre (1), et en ce qu'au moins une ouverture d'évent (14) relie à l'environnement, l'espace (15) se trouvant entre le volume de gaz (12) et la paroi d'étanchéité (8) du compartiment de travail (9).
  2. Cylindre de travail selon la revendication 1, caractérisé en ce que le tube de cylindre (1) prolongé est fermé de manière étanche par une autre paroi d'étanchéité stationnaire (2), et en ce qu'un piston de ressort à gaz (11) est guidé avec faculté de translation entre cette autre paroi d'étanchéité stationnaire (2) et la paroi d'étanchéité (8) du compartiment de travail (9) du cylindre de travail, et est sollicité par une force en raison d'un volume de gaz (12) enfermé entre l'autre paroi d'étanchéité stationnaire (2) et le piston de ressort à gaz (11) (figure 1).
  3. Cylindre de travail selon la revendication 1, caractérisé en ce que le tube de cylindre prolongé (1) est fermé de manière étanche par une autre paroi d'étanchéité stationnaire (16), en ce qu'il est prolongé encore plus loin au-delà de cette autre paroi d'étanchéité stationnaire (16) et en ce qu'il est fermé par un fond (2) ou une butée (3) pour le composant mobile (6, 11), ladite au moins une des ouvertures d'évent (14) reliant à l'environnement, l'espace (15) défini par la paroi d'étanchéité (8) du compartiment de travail (9) et l'autre paroi d'étanchéité stationnaire (16) (figures 2, 3, 4).
  4. Cylindre de travail selon la revendication 3, caractérisé en ce que le composant mobile en translation entre l'autre paroi d'étanchéité stationnaire (16) et le fond (2) est à lui seul une tige de piston (6) avec une section transversale essentiellement identique sur toute la longueur de déplacement entre la paroi d'étanchéité (16) et le fond (2) (figure 4).
  5. Cylindre de travail selon l'une des revendications 1 à 4, caractérisé en ce que la tige du piston de ressort à gaz est reliée de manière fixe à la tige du piston de travail (6), et est réalisée de préférence en un seul tenant avec celui-ci (figures 2, 4).
  6. Cylindre de travail selon l'une des revendications 1 à 4, caractérisé en ce que la tige du piston de ressort à gaz (13) et la tige du piston de travail (6) sont des composants séparés (figures 1, 3).
  7. Cylindre de travail selon l'une des revendications 1 à 6, caractérisé en ce que le cylindre de travail est réalisé à double effet et des raccordements (10) sont prévus des deux côtés du piston de travail (5) pour le fluide sous pression.
  8. Cylindre de travail selon l'une des revendications 1 à 7, caractérisé en ce que ladite au moins une ouverture d'évent (14) est ménagée dans le tube de cylindre (1).
  9. Cylindre de travail selon l'une des revendications 1 à 8, caractérisé en ce que l'autre paroi d'étanchéité est prévue sur le côté du piston de travail (5) se trouvant à l'opposé de la tige du piston de travail (6), et forme de préférence simultanément le fond (2) du cylindre de travail (figures 1, 4).
EP20020450006 2001-01-19 2002-01-16 Vérin hydraulique avec ressort à gaz Expired - Lifetime EP1225345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT932001A AT410357B (de) 2001-01-19 2001-01-19 Arbeitszylinder
AT932001 2001-01-19

Publications (2)

Publication Number Publication Date
EP1225345A1 EP1225345A1 (fr) 2002-07-24
EP1225345B1 true EP1225345B1 (fr) 2004-05-19

Family

ID=3613114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020450006 Expired - Lifetime EP1225345B1 (fr) 2001-01-19 2002-01-16 Vérin hydraulique avec ressort à gaz

Country Status (3)

Country Link
EP (1) EP1225345B1 (fr)
AT (1) AT410357B (fr)
DE (1) DE50200439D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021716A1 (de) * 2005-05-11 2006-11-16 Zf Friedrichshafen Ag Hydraulischer Stellenantrieb
DE102005060869A1 (de) * 2005-12-20 2007-06-21 Stabilus Gmbh Betätigungsanordnung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412114B (de) 2002-09-25 2004-09-27 Hoerbiger Hydraulik Doppeltwirkender arbeitszylinder
DE102006020082A1 (de) * 2006-04-29 2007-11-08 Stabilus Gmbh Stellelement
DE102006020104B4 (de) * 2006-04-29 2010-07-29 Stabilus Gmbh Stellelement
NL2003161C2 (nl) * 2009-07-09 2011-01-11 Actuant Corp Werkwijze voor het vervaardigen van een met gasgevulde dubbelwerkende hydraulische aandrijfcilinder met geïntegreerde gasveerwerking.
CN106286430B (zh) * 2016-10-17 2018-02-02 山河智能装备股份有限公司 一种活塞式蓄能器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635248C2 (de) * 1976-08-05 1986-08-07 Colt International Gmbh, 4190 Kleve Vorrichtung zum Öffnen und Schließen einer Lüftungsklappe von Feuerlüftern
FR2547015B1 (fr) * 1983-06-06 1985-07-26 Amri Actionneur a accumulateur d'energie pneumatique notamment pour robinet
JPS60208612A (ja) * 1984-03-30 1985-10-21 Shimadzu Corp シリンダ式アクチユエ−タ
JPS60237207A (ja) * 1984-05-09 1985-11-26 Mitsubishi Electric Corp 往復動装置
US5921604A (en) * 1996-05-16 1999-07-13 Applied Power Inc. Hydraulic door operating system
JP2998073B2 (ja) * 1997-02-10 2000-01-11 株式会社キッツ 弁駆動装置
JP3003074B2 (ja) * 1997-02-10 2000-01-24 株式会社キッツ 弁駆動装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021716A1 (de) * 2005-05-11 2006-11-16 Zf Friedrichshafen Ag Hydraulischer Stellenantrieb
DE102005060869A1 (de) * 2005-12-20 2007-06-21 Stabilus Gmbh Betätigungsanordnung
DE102005060869B4 (de) * 2005-12-20 2009-04-02 Stabilus Gmbh Betätigungsanordnung

Also Published As

Publication number Publication date
DE50200439D1 (de) 2004-06-24
ATA932001A (de) 2002-08-15
EP1225345A1 (fr) 2002-07-24
AT410357B (de) 2003-04-25

Similar Documents

Publication Publication Date Title
DE10261591B4 (de) Dämpfungsvorrichtung
EP1790873B1 (fr) Dispositif de déplacement à force variable
EP1851098B9 (fr) Cylindre de frein a accumulateur a ressort et de service combine avec dispositif de respiration
DE3004307A1 (de) Selbstpumpendes hydropneumatisches teleskop-feder-daempferelement mit innerer niveauregelung
DE102010002937B3 (de) Schwingungsdämpfer mit hubabhängiger Dämpfkraft
DE3034103A1 (de) Pneumatischer oder hydropneumatische kraftfahrzeugaufhaengung
EP1709334A1 (fr) Accumulateur de pression, en particulier amortisseur de pulsations
DE2341352A1 (de) Blockierbares hubaggregat mit endfederung
EP0258812A1 (fr) Dispositif de réglage et blocage continu
DE896311C (de) Einrichtung zur Erleichterung des Ein- und Aussteigens bei Kraftfahrzeugen, insbesondere Omnibussen
EP1225345B1 (fr) Vérin hydraulique avec ressort à gaz
WO2017198403A1 (fr) Amortisseur de vibrations dont la force d'amortissement est fonction de la course
EP2483115B1 (fr) Ensemble accumulateur hydraulique intégré
DE4404467C2 (de) Hydraulischer Türfeststeller für Kraftwagentüren
DE1800020A1 (de) Von aussen blockierbare,hydropneumatische Kolbenzylinderanordnung
DE102012223476A1 (de) Kolbenzylinder-Aggregat mit gestufter Dämpfkraftkennlinie
DE202005012885U1 (de) Hydraulischer Aktuator, insbesondere für ein Fahrwerkstabilisierungssystem
DE19532510A1 (de) Teleskopschwingungsdämpfer, insbesondere für Kraftfahrzeuge
DE102006002309B4 (de) Kolben-Zylinder-Anordnung
DE102006027388B4 (de) Federsystem
DE102004026356B4 (de) Zugfederanordnung
DE10038734C2 (de) Gedämpfter Pneumatikzylinder zur Erzeugung einer konstanten langsamen linearen Antriebsbewegung
EP3329142B1 (fr) Amortisseur de vibrations télescopique monotube hydraulique
DE102018130320A1 (de) Schwingungsdämpfer im Fahrwerk eines Kraftfahrzeugs
DE3343050A1 (de) Fluessigkeitsgedaempfte kolben-zylindereinheit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021223

AKX Designation fees paid

Designated state(s): DE FR IT SE

17Q First examination report despatched

Effective date: 20030610

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT SE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50200439

Country of ref document: DE

Date of ref document: 20040624

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050117

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050222

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170327

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50200439

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180801