EP1042615B1 - Fluidbetätigte arbeitsvorrichtung - Google Patents
Fluidbetätigte arbeitsvorrichtung Download PDFInfo
- Publication number
- EP1042615B1 EP1042615B1 EP99953807A EP99953807A EP1042615B1 EP 1042615 B1 EP1042615 B1 EP 1042615B1 EP 99953807 A EP99953807 A EP 99953807A EP 99953807 A EP99953807 A EP 99953807A EP 1042615 B1 EP1042615 B1 EP 1042615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston rod
- fluid
- section
- operating device
- pressure
- 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
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Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
- F04B9/129—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers
- F04B9/131—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members
- F04B9/135—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting elastic-fluid motors, each acting in one direction
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- 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
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- 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
- F15B2211/7055—Linear output members having more than two chambers
Definitions
- the invention relates to a fluid-operated working device in an embodiment as a pressure increasing device, with a Housing, with a fluid force relative to the housing sliding piston rod, and with at least one in Operable depending on the position of the piston rod Control valve that works by cooperating with a housing arranged sealing area the fluid connection between contains two control fluid control element that immediately from the correspondingly contoured piston rod on the outer circumference is formed.
- a working device of this known from GB-A-1140216 Art has a low pressure cylinder with a piston, on which two piston rods are arranged.
- the piston rods act as high-pressure pistons to achieve a pressure increase.
- the piston rods each form a corresponding one Contouring a control element of a control valve, through the one the stroke direction of the piston and the piston rods specified valve device is controlled.
- DE-U-295 16 960 also shows a fluid-operated working device, designed as a pressure increasing device with which the pressure of a fluid can be increased.
- a housing that contains two piston chambers, in which there are pistons that have a piston rod are connected to a work unit.
- the piston chambers are divided into two working areas by the pistons, a valve device to this end Control of the inner work spaces takes place that a sets reciprocating stroke movement of the work unit. That displaced from the outer working spaces during the lifting movement Fluid is supplied to a high-pressure room in which this builds up increased pressure.
- the valve device are control valves integrated in the housing provided, the control members in the adjacent piston rod-side Extend the work area and through to the end of the stroke the rising piston can be operated mechanically.
- Control element that is subject to wear due to mechanical coupling would have to be operated.
- the control member is in each case formed directly by the piston rod, which interact with the associated sealing area the fluid connection controls between two fluid spaces by adjusting their outer circumference accordingly is contoured. To completely shut off the To achieve a fluid connection is only an outer contour make that with the sealing area in fluid-tight Contact is there. If the fluid connection is to be released, all that is required is a correspondingly reduced cross section Outer contour of the piston rod, so that between the An overflow gap arises, which the fluidic pressure medium flows through allows.
- valve device By choosing the positioning and length of the corresponding contoured longitudinal sections of the piston rod stroke-dependent actuation of the control valves is easy and accordingly the valve device to be actuated by this achieve. It can therefore be done with little Effortless changeover and no mechanics prone to wear the valve device used to specify the stroke direction make. You can use the valve device if necessary assemble inexpensively from one or more series valves, which can be attached to the outside of the housing. A space-saving integrated into the housing would also be possible Construction of the valve device which is expedient in this case can be designed as a multi-way pulse valve. Furthermore, expensive sensors with associated actuators can be used (for example permanent magnets) and additional ones control measures are dispensed with.
- the two fluid spaces axially on both sides of the piston rod Connect the coaxial surrounding sealing area, whereby the piston rod via at least one to shut off the fluid connection serving length section (referred to as the shut-off section) has, which is contoured so that it when ingested one covering the sealing area, i.e. in the. rule position axially at the same level as the sealing area with sealing contact on the sealing area and thereby causes a shut-off position.
- the shut-off section has, which is contoured so that it when ingested one covering the sealing area, i.e. in the. rule position axially at the same level as the sealing area with sealing contact on the sealing area and thereby causes a shut-off position.
- the piston rod also has furthermore expediently at least one serving to release the fluid connection longitudinal section (referred to as a release section) which is contoured that he takes a covering the sealing area, so at least essentially at the same axial height the position lying in the sealing area, the two fluid spaces connecting overflow gap, the fluidic Pressure medium allows flow through.
- a release section which is contoured that he takes a covering the sealing area, so at least essentially at the same axial height the position lying in the sealing area, the two fluid spaces connecting overflow gap, the fluidic Pressure medium allows flow through.
- the sealing area of the control valve is in particular one defines an annular seal that expediently is designed as a lip seal or so-called grooved ring.
- the intermediate wall between the piston chambers can be Need to include a logic controller that is toggling the valve device which specifies the stroke direction, if at the from the valve device to the outside work rooms of the channels leading to the piston chambers either simultaneously no pressure or a certain actuation pressure at the same time (Primary pressure) is present.
- the invention is described below using a fluid-operated Working device 1 described as a pressure increasing device or pressure booster is executed.
- the working device 1 contains a housing 2, in which two axially consecutively arranged and through an intermediate wall 3 piston chambers 4 separated from each other, 4 'are formed. There is one in each piston chamber axially displaceable piston 5, 5 ', which seals on the cylindrical Inner surface of the relevant piston chamber 4, 4 ' is applied.
- the two pistons 5, 5 ' are by an axially extending, the intermediate wall 3 penetrating piston rod 6 below Formation of a work unit that can be axially displaced uniformly 7 rigidly connected.
- the intermediate wall 3 contains one axially continuous passage opening 8 through which Piston rod 6 is passed.
- Each piston 5, 5 ' divides the associated piston chamber 4, 4 'in a piston rod-side associated with the intermediate wall 3 inner working space 12, 12 'and an axially opposite arranged, not penetrated by the piston rod 6 outer working space 13, 13 '.
- a first primary channel arrangement 14, which runs at least partially in the wall of the housing 2, connects, with the interposition of a valve device 15 that can be actuated by fluid force, the two outer working spaces 13, 13 ′ to a feed opening 16 provided on the outer surface of the housing 2, via which a primary pressure P 1 standing fluid pressure medium, in particular compressed air, is supplied.
- a pressure setting device 17, which is schematically indicated in FIG. 2 and which is expediently designed as a pressure regulator, is also advantageously interposed. It is located upstream of the valve device 15 towards the feed opening 16 and enables the primary pressure actually present at the valve device 15 to be specified. If necessary, the pressure setting device 17 can also be omitted.
- the valve device 15 of the embodiment is as 5/2-way valve executed, which is a so-called Impulse valve, which is characterized by short-term fluid Pressurization can switch and that the relevant Maintains the switching position even after the actuation pressure has been removed.
- the first primary channel arrangement 14 is through the valve device 15 in one or more leading to the feed opening 16 Channel sections 18 and at least two in the two outer working spaces 13, 13 'opening on the piston chamber side Channel sections 19 divided. Furthermore communicates the Valve device 15 with two ventilation channels 20.
- Valve member 23 of the valve device 15 is thus the each have an outer working space 13 or 13 'under the primary pressure standing fluid supplied while the each other outer work space 13 'or 13 is vented. This causes the work unit 7 to be shifted into one or other axial direction.
- valve device 15 The switching of the valve device 15 is effected by that with the valve member 23 cooperating actuating means 24, for example actuating pistons or actuating membranes, with under fluid under operating pressure.
- actuating means 24 for example actuating pistons or actuating membranes
- both axial end regions of the Valve member 23 each assigned an actuating means 24, whose fluid action via actuation channels 22 causes becomes.
- first check valves 26, 26 ' communicates under Interposition of first check valves 26, 26 ' with the two piston rod-side working spaces 12, 12 '.
- it contains one of the feed opening 16 outgoing common channel section 27, which is inside the housing wall in two branch sections 28, 28 ' splits into the piston rod-side working spaces 12. 12 'open and into each of which a first check valve 26. 26 'is switched on.
- the alignment of the first check valves 26, 26 ' is such that a fluid flow in Direction to the piston rod-side working spaces 12, 12 ' possible and prevented in the opposite direction.
- a secondary channel arrangement 32 which communicates on the one hand with the working chambers 12, 12 'on the piston rod side and on the other hand leads to an outlet opening 33 provided in the area of the outer surface of the housing 2, to which a volume, referred to here as the high-pressure chamber 34, is connected.
- a secondary pressure P 2 which is higher than the secondary pressure P 1 applied on the inlet side is to be generated in the high-pressure chamber 34.
- the second primary channel arrangement 25 is also comparable Secondary channel arrangement 32 into one of the outlet opening 33 outgoing common channel section 35 and two of this branching and into the piston rod-side working spaces 12, 12 'branching branch sections 36, 36' divided.
- All Branch section 36, 36 ' is a second check valve 37, 37 'turned on, with the opposite direction of action than the first check valves 26, 26 ', so that a Fluid flow from the piston rod working areas 12, 12 'to the high-pressure chamber 34 possible and in the opposite direction is prevented.
- Check valves 26, 26 '; 37, 37 ' are expedient arranged in the intermediate wall 3, but could in principle can also be provided externally.
- the outer working space 13 ′ located on the right outside is acted upon by fluid under the primary pressure P 1 , while at the same time the opposite outer working space 13 is vented.
- the working unit 7 therefore moves to the left, the piston 5 'approaching the intermediate wall 3 and lying to the right in FIG. 1 compressing the fluid fed via the second primary channel arrangement 25 into the associated working chamber 12' on the piston rod side and via the working chamber 12 with the piston rod side 'communicating branch section 36' of the secondary channel arrangement 32 displaced to the high pressure chamber 34.
- the second check valve 37 located in the other branch section 36 prevents the displaced fluid from flowing over into the other working chamber 12 on the piston rod side.
- valve device 15 is switched over, so that the direction of movement of the working unit 7 is reversed, now from the piston rod-side working space 12 the piston chamber 4 on the left in FIG prevailing pressure fluid through the secondary channel arrangement 32 is displaced to the high pressure chamber 34.
- a secondary pressure P 2 which is at a higher pressure than the primary pressure P 1 , gradually builds up in the high-pressure chamber 34.
- the pressure regulator 17 By returning the pressure in the high-pressure chamber 34 to the pressure regulator 17 as a control pressure (indicated by dash-dotted lines), an operating mode is possible in which the pressure regulator 17 interrupts the fluid supply to the valve device 15 when a desired preset secondary pressure P 2 has been reached.
- the described mode of operation of the working device 1 requires an actuation of the valve device 15 in dependence from the axial position assumed relative to the housing 2 the work unit 7. This is done in the embodiment using two the actuating means 24 of the Valve device 15 of upstream control valves 38, 38 ', which operates depending on the position of the piston rod 6 and accordingly an actuation or a switchover the valve device 15 cause.
- the latter happens in that the control valves supply an actuating fluid to the actuating means 24 of the valve device 15 taxes.
- piston rod 6 itself is a component of the two control valves is by using their control links forms and by interacting with one another Control valve 38, 38 'associated with the housing Sealing area 43, 43 'the fluid supply of the actuating fluid controls to the actuating means 24.
- the seals 44 are expediently Lip seals, which are also called grooved rings.
- the piston rod 6 becomes coaxial from the sealing areas 43, 43 ' surround.
- Each sealing area 43, 43 ' is located axially between one first fluid space 46 and a second fluid space 47.
- the first Fluid space 46 stands with the respectively adjacent piston rod side Working space 12, 12 'in connection, in the embodiment over an axially relatively short annular gap between the passage opening 8 and the outer surface of the piston rod 6. It would also be conceivable for the first fluid space 46 directly from the adjacent working area on the piston rod side is formed.
- the second fluid spaces 47 are in the embodiment of annular spaces formed axially in the terminal to the respective sealing area 43, 43 'between the outer circumference the piston rod 6 and the inner circumference of the passage opening 8 are provided. To prevent the two second fluid spaces 47 with one another via the passage opening 8 communicate, they are on the assigned sealing area 43, 43 'axially opposite side inside the Partition 3 sealed from each other. This happens at Embodiment in that every second fluid space 47th on the axial side opposite the sealing area 43, 43 ' is flanked by a further sealing area 48 which in constant sealing contact with the outer surface of the piston rod 6 stands and expediently also of an annular Seal especially in the form of a lip seal or a grooved ring is formed.
- leakage discharge channel 49 may be provided, the one hand in the between the two other sealing areas 48 lying length section of the passage opening 8 opens and on the other hand led to the outer surface of the housing 2 is so that any leakage that may occur is derived can be.
- the fluid control function of the piston rod 6 is now thereby realizes that the piston rod 6 along its length the desired control function contoured outer circumference has.
- An actuation of the valve device 15 is brought about be in which the actuating fluid and thus the fluid Actuation signal from the piston rod-side work rooms 12, 12 'is obtained.
- the piston rod 6 of the embodiment has a a greater length than the intermediate wall 3 Length section that is used to shut off the fluid connection between the two fluid spaces 46, 47 of the two control valves 38, 38 'serves and therefore in the following as shut-off section 52 be designated. It is contoured so that when ingested a position covering one of the sealing areas 43, 43 ' with sealing contact on this sealing area 43, 43 ', so that he occupies a shut-off position, the Fluid connection between the two adjacent first and second fluid spaces 46, 47 is separated. In the shut-off position the shut-off section 52 is axially the same Height with the associated sealing area 43, 43 'and is sealed by this or the associated seal 44.
- the piston rod 6 has two axially spaced axially adjoining the shut-off section 52 on both sides
- Length sections that are used for stroke-dependent release the fluid connection between the two pairs of fluid spaces 46, 47 serve and therefore as release sections 53, 53 ' be designated.
- the release sections 53, 53 ' are contoured so that they take the assigned sealing area when taking one 43, 43 'overlapping position with formation at least an overflow gap 54 connecting the fluid spaces 46, 47 at least partially radially spaced from the sealing area in question 43, 43 'are arranged.
- the position in question is referred to as the release position because the overflow gap 54 Releases connection between the two fluid spaces 46, 47, what the fluid while passing the assigned sealing area 43, 43 'allows flow through.
- the piston rod 6 is now designed so that the Shutoff section 52 is always effective until a piston 5, 5 'in the vicinity of the assigned end face 45, 45' the partition 3 arrives or comes to rest on this. For this reason, the release sections 53, 53 'at Embodiment axially with only a small distance from each one of the two pistons 5, 5 'arranged.
- each actuation channel 22 are suitable Venting means 55 assigned. You are in the embodiment each of the actuation channel concerned 22 nozzle or throttle connecting to the atmosphere formed, although the necessary for switching Pressure build-up not affected, but then one Can equalize pressure with the atmosphere.
- valve device 15 is outside attached to the housing, in particular through a Intermediate plate. It goes without saying, however, that it does, at least partially or completely in the housing and thereby in particular can be integrated into the intermediate wall 3.
- Figure 1 is otherwise to clarify the valve function the associated valve device 15 symbolically Circuit diagram shown.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
- Braking Systems And Boosters (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
- Figur 1
- eine beispielhafte Bauform der fluidbetätigten Arbeitsvorrichtung in einer Ausgestaltung als Druckerhöhungsvorrichtung in einem Längsschnitt gemäß Schnittlinie I-I aus Figur 2, und
- Figur 2
- die Anordnung aus Figur 1 im Querschnitt gemäß Schnittlinie II-II aus Figur 1.
Claims (9)
- Fluidbetätigte Arbeitsvorrichtung in einer Ausgestaltung als Druckerhöhungsvorrichtung, mit einem Gehäuse (2), mit einer durch Fluidkraft relativ zu dem Gehäuse (2) verschiebbaren Kolbenstange (6), und mit mindestens einem in Abhängigkeit von der Position der Kolbenstange (6) betätigbaren Steuerventil (38, 38'), das ein durch Zusammenwirken mit einem gehäusefest angeordneten Dichtbereich (43, 43') die Fluidverbindung zwischen zwei Fluidräumen (46, 47) steuerndes Steuerglied enthält, das unmittelbar von der am Außenumfang entsprechend konturierten Kolbenstange (6) gebildet ist, dadurch gekennzeichnet, dass das Gehäuse (2) über zwei durch eine Zwischenwand (3) voneinander abgeteilte Kolbenkammern (4, 4') verfügt, in denen sich jeweils ein zwei Arbeitsräume (12, 12'; 13, 13') voneinander abteilender Kolben (5, 5') befindet, wobei die beiden Kolben (5, 5') durch die Kolbenstange (6) unter Bildung einer Arbeitseinheit (7) starr miteinander verbunden sind, wobei die Kolbenstange (6) die zwischenwand (3) durchsetzt, dass ferner zwei Steuerventile (38, 38') vorgesehen sind, deren Dichtbereiche (43, 43') sich in der von der Kolbenstange (6) durchsetzten Durchtrittsöffnung (8) der Zwischenwand (3) befinden, wobei jeweils einer der beiden zugeordneten Fluidräume (46) vom benachbarten kolbenstangenseitigen Arbeitsraum (12, 12') gebildet oder mit diesem verbunden ist und die beiden anderen Fluidräume (47) über zumindest teilweise in der Zwischenwand (3) verlaufende Betätigungskanäle (22) mit den Betätigungsmitteln (24) einer fluidbetätigten Ventileinrichtung (15) kommunizieren, dass außerdem eine erste Primärkanalanordnung (14) vorgesehen ist, über die den äußeren Arbeitsräumen (13, 13') unter Zwischenschaltung der Ventileinrichtung (15) abwechselnd ein Fluid zuführbar ist, um die Arbeitseinheit (7) in die eine oder andere axiale Richtung zu verlagern, und wobei eine zweite Primärkanalanordnung (25) vorhanden ist, über die die beiden kolbenstangenseitigen Arbeitsräume (12, 12') unter Zwischenschaltung von ersten Rückschlagventilen (26, 26') mit unter einem Primärdruck stehendem Fluid beaufschlagt werden, und dass eine Sekundärkanalanordnung (32) vorhanden ist, die dazu dient, aus den kolbenstangenseitigen Arbeitsräumen (12, 12') verdrängtes Fluid unter Zwischenschaltung von zweiten Rückschlagventilen (37, 37') einem Hochdruckraum (34) zuzuführen.
- Arbeitsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich die beiden Fluidräume (46, 47) axial beidseits an einen die Kolbenstange (6) koaxial umgebenden Dichtbereich (43, 43') anschließen, wobei die Kolbenstange (6) über wenigstens einen zum Absperren der Fluidverbindung dienenden Längenabschnitt (Absperrabschnitt 52) verfügt, der derart konturiert ist, dass er bei Einnahme einer den Dichtbereich (43, 43') überdeckenden Position mit Dichtkontakt an dem Dichtbereich (43, 43') anliegt (Absperrstellung), und wobei die Kolbenstange (6) über wenigstens einen zum Freigeben der Fluidverbindung dienenden Längenabschnitt (Freigabeabschnitt 53, 53') verfügt, der derart konturiert ist, dass er bei Einnahme einer den Dichtbereich (43, 43') überdeckenden Position unter Bildung wenigstens eines die Fluidräume (46, 47) verbindenden Überströmspaltes (54) zumindest partiell radial beabstandet zum Dichtbereich (43, 43') angeordnet ist (Freigabestellung).
- Arbeitsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Freigabeabschnitt (53, 53') von einer umlaufenden nutartigen Vertiefung der Kolbenstange (6) gebildet ist.
- Arbeitsvorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass einer der Fluidräume (46, 47) im Bereich der Kolbenstange (6) auf einer Axialseite von dem Dichtbereich (43, 43') des Steuerventils (38, 38') und auf der anderen Axialseite von einem ständig in Dichtkontakt mit der Kolbenstange (6) stehenden weiteren Dichtbereich (48) flankiert ist.
- Arbeitsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass sich der an den weiteren Dichtbereich (48) auf der dem benachbarten Fluidraum (47) entgegengesetzten Axialseite anschließende, die Kolbenstange umgebende Raum mit einem Leckage-Abfuhrkanal (49) verbunden ist.
- Arbeitsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Ventileinrichtung (15) außen an das Gehäuse (2) angebaut oder wenigstens teilweise in das Gehäuse (2) integriert ist.
- Arbeitsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Dichtbereich (43, 43') durch eine ringförmige, insbesondere als Lippendichtung ausgeführte Dichtung (44) definiert ist.
- Arbeitsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass eine insbesondere in der Zwischenwand (3) angeordnete logische Steuerung vorgesehen ist, die ein Umschalten der Ventileinrichtung (15) bewirkt, wenn an den von der Ventileinrichtung (15) zu den äußeren Arbeitsräumen (13, 13') führenden Kanälen (19) der zweiten Primärkanalanordnung (25) gleichzeitig entweder kein Druck oder ein Primärdruck anliegt.
- Arbeitsvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass Entlüftungsmittel (55) für die Betätigungskanäle (22) vorgesehen sind, die wirksam sind, wenn das zugeordnete Steuerventil (38, 38') durch die Kolbenstange abgesperrt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29818762U | 1998-10-21 | ||
DE29818762U DE29818762U1 (de) | 1998-10-21 | 1998-10-21 | Fluidbetätigte Arbeitsvorrichtung |
PCT/EP1999/007694 WO2000023716A1 (de) | 1998-10-21 | 1999-10-13 | Fluidbetätigte arbeitsvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1042615A1 EP1042615A1 (de) | 2000-10-11 |
EP1042615B1 true EP1042615B1 (de) | 2004-08-04 |
Family
ID=8064190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99953807A Expired - Lifetime EP1042615B1 (de) | 1998-10-21 | 1999-10-13 | Fluidbetätigte arbeitsvorrichtung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1042615B1 (de) |
JP (1) | JP2002527296A (de) |
KR (1) | KR20010033338A (de) |
DE (2) | DE29818762U1 (de) |
WO (1) | WO2000023716A1 (de) |
Cited By (1)
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EP3546762A4 (de) * | 2016-11-22 | 2020-07-29 | SMC Corporation | Druckverstärker |
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DE202006002145U1 (de) | 2006-02-10 | 2006-04-27 | Festo Ag & Co | Druckluft-Wartungsvorrichtung |
US9670921B2 (en) * | 2015-09-17 | 2017-06-06 | Monkey Pumps, LLC | Reciprocating drive mechanism with a spool vent |
CA2997814C (en) * | 2015-11-19 | 2021-09-28 | Monkey Pumps, LLC | Reciprocating drive mechanism with a spool vent |
CN114060329A (zh) * | 2020-08-04 | 2022-02-18 | 费斯托(中国)自动化制造有限公司 | 气动增压器 |
IT202100014633A1 (it) * | 2021-06-04 | 2022-12-04 | Camozzi Automation S P A | Moltiplicatore di pressione |
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US2864313A (en) * | 1957-04-24 | 1958-12-16 | Dawson Edward | Hydraulic intensifier |
CH512674A (fr) * | 1964-04-14 | 1971-09-15 | Francis Daumas Jacques | Groupe motopompe à liquide, à commande pneumatique |
DE1528583A1 (de) * | 1965-05-20 | 1970-01-29 | Stahl U Appbau Hans Leffer Gmb | Hydraulisch oder pneumatisch kontinuierlich betaetigter Kolbenantrieb mit hin- und hergehender Bewegung,insbesondere doppeltwirkender Druckuebersetzer |
US5626068A (en) | 1994-04-12 | 1997-05-06 | White Manufacturing (Proprietary) Limited | Hydraulic reciprocating mechanism |
DE4447611A1 (de) * | 1994-10-28 | 1996-07-18 | Wagner Hermann | Hydraulischer Druckübersetzer und Verwendung eines solchen in einem Wasserhydraulikschweißsystem |
DE19537417C2 (de) | 1995-10-07 | 1997-07-24 | Eurocopter Deutschland | Hydraulischer Stellantrieb |
DE29516960U1 (de) * | 1995-10-26 | 1996-01-04 | bar-pneumatische Steuerungssysteme GmbH, 53547 Dattenberg | Druckerhöher |
DE19633258C1 (de) * | 1996-08-17 | 1997-08-28 | Iversen Hydraulics Aps | Druckverstärker für Fluide, insbesondere für Hydraulikflüssigkeiten |
-
1998
- 1998-10-21 DE DE29818762U patent/DE29818762U1/de not_active Expired - Lifetime
-
1999
- 1999-10-13 DE DE59910134T patent/DE59910134D1/de not_active Expired - Lifetime
- 1999-10-13 JP JP2000577414A patent/JP2002527296A/ja active Pending
- 1999-10-13 EP EP99953807A patent/EP1042615B1/de not_active Expired - Lifetime
- 1999-10-13 WO PCT/EP1999/007694 patent/WO2000023716A1/de not_active Application Discontinuation
- 1999-10-13 KR KR1020007006798A patent/KR20010033338A/ko not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3546762A4 (de) * | 2016-11-22 | 2020-07-29 | SMC Corporation | Druckverstärker |
Also Published As
Publication number | Publication date |
---|---|
JP2002527296A (ja) | 2002-08-27 |
WO2000023716A1 (de) | 2000-04-27 |
KR20010033338A (ko) | 2001-04-25 |
DE29818762U1 (de) | 1998-12-24 |
DE59910134D1 (de) | 2004-09-09 |
EP1042615A1 (de) | 2000-10-11 |
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