EP1225345A1 - Fluidischer Betätigungszylinder mit Gasfeder - Google Patents
Fluidischer Betätigungszylinder mit Gasfeder Download PDFInfo
- Publication number
- EP1225345A1 EP1225345A1 EP02450006A EP02450006A EP1225345A1 EP 1225345 A1 EP1225345 A1 EP 1225345A1 EP 02450006 A EP02450006 A EP 02450006A EP 02450006 A EP02450006 A EP 02450006A EP 1225345 A1 EP1225345 A1 EP 1225345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- working
- sealing wall
- gas spring
- 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.)
- Granted
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 axially spaced and relative to the cylinder tube stationary sealing walls, a working piston, with at least one sealing wall, at least one working space defined and moved 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 of the sealing wall sealing piston rod.
- 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 such an 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.
- gas springs have a certain amount of leakage over their lifespan so that gas flows into the cylinder space in the known constructions and here in an undesirable manner counteracting the filling pressure of the work space Pressure builds up.
- the gas flowing into the cylinder space also has an effect an undesirable softness of the system, which is not an exact actuation, in particular no more exact stop and emergency stop functions possible.
- the gas would also push a certain amount of working medium out of the cylinder, what amount should be taken into the tank, what a tank ventilation indispensable, as well as a larger dimensioning 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, is 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 possible without the disadvantages mentioned above.
- the working cylinder characterized in that the cylinder tube over at least one of the stationary sealing walls extended and in the extended section a movable component is included, which is enclosed by an in the extended portion of the cylinder tube Gas volume is acted upon by a force and one by a Sealing wall of the work space sealingly guided gas spring piston rod acts on the working piston, and that at least one vent opening between the gas volume and the sealing wall of the work area connects with the environment.
- This is a gas spring in a simple manner integrated the working cylinder so that external gas containers and connections from Working cycles can be avoided there.
- this is very easy constructed and compact working cylinder coupled to the gas spring in a way, in which the working spaces of the working cylinder depend on the gas volume of the Gas spring are separated by a room vented into the environment, from which the gas escaping into the environment due to the gas spring leaking can flow out and not get into the working fluid system of the working cylinder can.
- the extended cylinder tube through another stationary 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 by 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 stationary 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.
- the construction is very simple possible, in which the gas spring piston rod is fixed to the working piston rod is connected, preferably in one piece with it.
- constructions according to the invention are also possible, in which the working cylinder and the 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 against 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 larger 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 is advantageously on that of the working piston rod 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 lid 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 FIG. 2.
- 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 stationary 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 which causes the gas volume 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.
- 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 is in turn 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 actuating force on the rod head 7 is generated by the working piston 5, which between the bottom 2 and the first stationary 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 it seals 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)
Abstract
Description
Claims (9)
- Arbeitszylinder, mit einem Zylinderrohr (1), zumindest zwei axial beabstandeten und relativ zum Zylinderrohr ortsfesten Abdichtwänden (8 und 2 bzw. 3), einem Arbeitskolben (5), der mit zumindest einer Abdichtwand zumindest einen Arbeitsraum (9) definiert und mittels eines Druckfluids zwischen zwei Abdichtwänden verschoben werden kann, welches Druckfluid über zumindest je einen Anschluß (10) pro Arbeitsraum zu- und abgeführt werden kann, und einer mit dem Arbeitskolben (5) verbundenen und durch zumindest eine der Abdichtwände dichtend hindurchgeführte Arbeitskolbenstange (6), dadurch gekennzeichnet, daß das Zylinderrohr (1) über zumindest eine der ortsfesten Abdichtwände (8) hinaus verlängert und im verlängerten Abschnitt ein verschiebbarer Bauteil (6, 11) aufgenommen ist, der durch ein im verlängerten Abschnitt des Zylinderrohres eingeschlossenes Gasvolumen (12) mit einer Kraft beaufschlagt ist und über eine durch eine Abdichtwand (8) des Arbeitsraumes (9) dichtend hindurchgeführte Kolbenstange (6, 13) auf den Arbeitskolben (5) einwirkt, und daß zumindest eine Entlüftungsöffnung (14) den zwischen dem Gasvolumen (12) und der Abdichtwand (8) des Arbeitsraumes (9) liegenden Raum (15) mit der Umgebung verbindet.
- Arbeitszylinder nach Anspruch 1, dadurch gekennzeichnet, daß das verlängerte Zylinderrohr (1) durch eine weitere ortsfeste Abdichtwand (2) dicht abgeschlossen ist, daß zwischen dieser weiteren Abdichtwand (2) und der Abdichtwand (8) des Arbeitsraumes (9) des Arbeitszylinders ein Gasfederkolben (11) verschiebbar geführt und durch ein zwischen der weiteren Abdichtwand (2) und dem Gasfederkolben (11) eingeschlossenes Gasvolumen (12) mit einer Kraft beaufschlagt ist (Fig. 1).
- Arbeitszylinder nach Anspruch 1, dadurch gekennzeichnet, daß das verlängerte Zylinderrohr (1) durch eine weitere ortsfeste Abdichtwand (16) dicht abgeschlossen ist, daß es über diese weitere ortsfeste Abdichtwand (16) noch weiter hinaus verlängert und durch einen Boden (2) oder Anschlag (3) für den verschiebbaren Bauteil (6, 11) abgeschlossen ist, wobei die zumindest eine Entlüftungsöffnung (14) den von der Abdichtwand (8) des Arbeitsraumes (9) und der weiteren ortsfesten Abdichtwand (15) definierten Raum (15) mit der Umgebung verbindet (Fig. 2, 3, 4).
- Arbeitszylinder nach Anspruch 3, dadurch gekennzeichnet, daß der zwischen der weiteren ortsfesten Abdichtwand (16) und dem Boden (2) verschiebbare Bauteil allein eine Kolbenstange (6) mit im wesentlichen über die gesamte, zwischen Abdichtwand (16) und Boden (2) verschiebbare Länge gleichem Querschnitt ist (Fig. 4).
- Arbeitszylinder nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Gasfederkolbenstange fix mit der Arbeitskolbenstange (6) verbunden ist, vorzugsweise einstückig damit ausgeführt ist (Fig. 2, 4).
- Arbeitszylinder nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Gasfederkolbenstange (13) und die Arbeitskolbenstange (6) getrennte Bauteile sind (Fig. 1, 3).
- Arbeitszylinder nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Arbeitszylinder doppeltwirkend ausgeführt ist und Anschlüsse (10) für das Druckfluid auf beiden Seiten des Arbeitskolbens (5) vorgesehen sind.
- Arbeitszylinder nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die zumindest eine Entlüftungsöffnung (14) im Zylinderrohr (1) ausgearbeitet ist.
- Arbeitszylinder nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die weitere Abdichtwand auf der der Arbeitskolbenstange (6) gegenüberliegenden Seite des Arbeitskolbens (5) vorgesehen ist und vorzugsweise gleichzeitig den Boden (2) des Arbeitszylinders bildet (Fig. 1, 4).
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 true EP1225345A1 (de) | 2002-07-24 |
EP1225345B1 EP1225345B1 (de) | 2004-05-19 |
Family
ID=3613114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020450006 Expired - Lifetime EP1225345B1 (de) | 2001-01-19 | 2002-01-16 | Fluidischer Betätigungszylinder mit Gasfeder |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1225345B1 (de) |
AT (1) | AT410357B (de) |
DE (1) | DE50200439D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1403530A2 (de) | 2002-09-25 | 2004-03-31 | Hoerbiger Hydraulik GmbH | Doppeltwirkender Arbeitszylinder |
DE102006020104A1 (de) * | 2006-04-29 | 2007-11-08 | Stabilus Gmbh | Stellelement |
DE102006020082A1 (de) * | 2006-04-29 | 2007-11-08 | 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. |
CN106286430A (zh) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | 一种活塞式蓄能器 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005021716A1 (de) * | 2005-05-11 | 2006-11-16 | Zf Friedrichshafen Ag | Hydraulischer Stellenantrieb |
DE102005060869B4 (de) * | 2005-12-20 | 2009-04-02 | Stabilus Gmbh | Betätigungsanordnung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1586577A (en) * | 1976-08-05 | 1981-03-18 | Colt Int Ltd | Ventilators |
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 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2547015B1 (fr) * | 1983-06-06 | 1985-07-26 | Amri | Actionneur a accumulateur d'energie pneumatique notamment pour robinet |
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 |
-
2001
- 2001-01-19 AT AT932001A patent/AT410357B/de not_active IP Right Cessation
-
2002
- 2002-01-16 EP EP20020450006 patent/EP1225345B1/de not_active Expired - Lifetime
- 2002-01-16 DE DE50200439T patent/DE50200439D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1586577A (en) * | 1976-08-05 | 1981-03-18 | Colt Int Ltd | Ventilators |
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 |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 062 (M - 460) 12 March 1986 (1986-03-12) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 105 (M - 471) 19 April 1986 (1986-04-19) * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1403530A2 (de) | 2002-09-25 | 2004-03-31 | Hoerbiger Hydraulik GmbH | Doppeltwirkender Arbeitszylinder |
EP1403530A3 (de) * | 2002-09-25 | 2004-11-24 | Hoerbiger Hydraulik GmbH | Doppeltwirkender Arbeitszylinder |
DE102006020104A1 (de) * | 2006-04-29 | 2007-11-08 | Stabilus Gmbh | Stellelement |
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. |
WO2011005086A1 (en) * | 2009-07-09 | 2011-01-13 | Actuant Corporation | Double-acting hydraulic cylinder with integrated gas spring action and method for making the same |
US20120097024A1 (en) * | 2009-07-09 | 2012-04-26 | Tone Oudelaar | Double-acting hydraulic cylinder with integrated gas spring action and method for making the same |
US8939062B2 (en) | 2009-07-09 | 2015-01-27 | Actuant Corporation | Double-acting hydraulic cylinder with integrated gas spring action and method for making the same |
CN106286430A (zh) * | 2016-10-17 | 2017-01-04 | 山河智能装备股份有限公司 | 一种活塞式蓄能器 |
Also Published As
Publication number | Publication date |
---|---|
DE50200439D1 (de) | 2004-06-24 |
ATA932001A (de) | 2002-08-15 |
EP1225345B1 (de) | 2004-05-19 |
AT410357B (de) | 2003-04-25 |
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