EP1013941A1 - Baugruppe zur Ansteuerung von Stellgliedern - Google Patents
Baugruppe zur Ansteuerung von Stellgliedern Download PDFInfo
- Publication number
- EP1013941A1 EP1013941A1 EP99125318A EP99125318A EP1013941A1 EP 1013941 A1 EP1013941 A1 EP 1013941A1 EP 99125318 A EP99125318 A EP 99125318A EP 99125318 A EP99125318 A EP 99125318A EP 1013941 A1 EP1013941 A1 EP 1013941A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- valves
- switching
- control
- actuator
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0832—Modular valves
-
- 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
- F15B11/006—Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
- F15B13/0438—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being of the nozzle-flapper type
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0814—Monoblock manifolds
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0875—Channels for electrical components, e.g. for cables or sensors
-
- 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/30575—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve in a Wheatstone Bridge arrangement (also half bridges)
-
- 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
- F15B2211/3127—Floating position connecting the working ports and the return line
-
- 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87193—Pilot-actuated
- Y10T137/87201—Common to plural valve motor chambers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87193—Pilot-actuated
- Y10T137/87209—Electric
Definitions
- the invention relates to an assembly of a pilot valve and four Switching valves, in particular for controlling actuators.
- Such an assembly can form a 5/3 or 4/3 way valve and enables to control, for example, a double-acting hydraulic cylinder as an actuator.
- Pilot valves are usually used, especially two electromagnetic pilot valves, the slide center position when not energized Pilot valves are taken and for the first or the second off-center Switch position of the slide one or the other pilot valve is controlled.
- the object of the invention is to control fluid-operated 5/3 and Simplify 4/3-way valves so that all three switching positions of the valves can be switched by a single solenoid of a pilot valve.
- the pilot valve is a 4/3-way valve.
- the Effort and the construction volume for the two previously planned electromagnetic Pilot valves on the lower effort and the lower volume for one Pilot valve This makes it easier to attach the valves to valve terminals and that Interconnection of such valves on a common electrical supply line and a fluid supply line.
- the actuation of an actuator is now generally described with reference to FIG described, which is shown here as a double-acting actuator cylinder 1.
- the actuating cylinder 1 has a piston 2 and a working chamber 3 on the left side of the piston 2 and a working chamber 4 on the right side
- the working chamber 3 is with a Port A is provided, and the working chamber 4 is provided with a port B.
- the three switching examples each differ with regard to their middle position.
- a floating circuit is implemented in the middle position shown in illustration a), at which the two working chambers 3, 4 are connected to the return line R.
- the piston 2 is therefore free to move.
- the switching example in illustration b) is realized in the middle position a blocking position in which the two working chambers 3, 4 each with the pressure P be charged.
- the piston 2 is therefore blocked against movement.
- Representation c) is also a locked position, the two here Working chambers 3, 4 are each cordoned off, i.e. closed.
- the piston is 2 blocked.
- solenoid valves M being used here as pilot valves, which are connected to switching valves S 1 and S 2 .
- the solenoid valves and switching valves are provided with the index L or R.
- An excitation voltage U can be applied to the solenoid valves.
- the Switching valves are provided with a pressure port P and a return port R.
- the letter P stands for a pressure connection in the table
- the letter R stands for an unpressurized return line.
- the switching states 1 to 3 shown in the table correspond to the circuit Figure 1a).
- the switching states 2 to 4 shown in the table correspond to the circuit Figure 1b).
- the switching states 1 to 3 shown in Table 2 correspond to the circuit according to Figure 1c).
- the switching state 4 shown in Table 2 corresponds to a short circuit from P to R.
- the pilot control element 10 has a housing 12, in which has two adjacent control chambers 20, 30 which are insulated from one another formed, of which only one can be seen in Figure 4. Open in each tax chamber Working connection and two pressure connections, the working connection with A and B is designated and the pressure connections are designated with P or R. Two of the connections in each control chamber 20 and 30 are provided with a sealing seat 21, 22 and 31, 32, respectively. With The sealing seats 21, 22 and 31, 32 generally operate with the reference number 14 provided switching element together. The switching element 14 can by acting on one Actuating extension 15 from a rest position into a first and a second position be moved. A total of three positions of the switching element 14 are possible.
- an actuator 16 is provided (see in particular Figure 6), for example as an electromagnetic drive with a Polarized drive element is executed, the permanent magnet in the de-energized state a coil causes a central position of the actuation extension 15 and at Current flow depending on the direction of the current either in the actuating arm Adjusted in the direction of arrow 1 or in the direction of arrow 2.
- the two positions 1 and 2 are one on the actuation extension 15 attached magnet 17 shown.
- the coil of the actuator is with the Reference numeral 18 provided, and the switchable voltage source is in Figure 6 with the Reference number 19 provided.
- the basic structure of the switching element 14, which consists of a core 11 and a this surrounding elastomer 13, and the storage of the switching element in Housing 12 is basically known from German utility model 295 07 380 that is expressly referred to. The details of the design of the switching element are therefore not further explained here.
- the switching element 14 projects into each control chamber 20, 30 with a Sealing part 24 or 34 into it.
- the two sealing parts 24, 34 are fixed to the Actuating extension 15 connected and are simultaneously with the actuating extension emotional.
- the two sealing parts 24, 30 are arranged in different planes, that is crossed against each other. In contrast, they are on the upper side of the Control chambers 20, 30 arranged sealing seats 21, 31 and on the lower side of the Control chambers arranged sealing seats 22, 32 each at the same level.
- the circuit shown in FIG. 9 is based on the circuit shown in FIG. 2 and used instead of the solenoid valves M shown there that known from Figures 4 to 8 Pilot control.
- the circuit shown corresponds to the example shown in FIG. 1a).
- a floating circuit is realized in which the two Working chambers of the actuator are connected to R.
- FIG. 11 shows the pilot control element known from FIG. 9 with the one from FIG. 3 known circuit of the switching valves combined. The result is the one known from FIG. 1c) Circuit, wherein in the rest position shown in Figure 11, in which the two Pressure ports P of the pilot element are blocked, both the two Working chambers of the actuator and the ports P, R are blocked.
- FIGS. 4 to 8 a valve block is shown in FIGS Combination of the switching valves S with a pilot control element according to FIGS. 4 to 8 is achieved.
Abstract
Description
- Figur 1 schematisch ein Stellglied mit verschiedenen Schaltungsvarianten;
- Figur 2 schematisch ein erstes Schaltschema für ein Stellglied;
- Figur 3 schematisch ein zweites Schaltschema für ein Stellglied;
- Figur 4 schematisch einen Teil eines Gehäuses eines Vorsteuerelementes mit Steuerkammer und darin angeordnetem Dichtteil;
- Figur 5 in einer schematischen Schnittansicht ein Vorsteuerelement;
- Figur 6 schematisch ein Betätigungsorgan, das bei den Vorsteuerelement von Figur 5 verwendet werden kann;
- Figur 7 in einer schematischen Draufsicht ein Schaltelement, das bei dem Vorsteuerelement von Figur 5 verwendet wird;
- Figur 8 einen schematischen Querschnitt durch die beiden Steuerkammern des Vorsteuerelements von Figur 5;
- Figur 9 schematisch das erste Schaltschema für ein Stellglied mit einem Vorsteuerelement gemäß einer ersten Ausführungsform;
- Figur 10 schematisch das erste Schaltschema für ein Stellglied mit einem Vorsteuerelement gemäß einer zweiten Ausführungsform;
- Figur 11 schematisch das zweite Schaltschema für ein Stellglied mit einem Vorsteuerelement gemäß einer ersten Ausführungsform;
- Figur 12 einen Schnitt durch eine Ventilinsel mit Vorsteuerelement; und
- Figur 13 in größerem Maßstab einen Ausschnitt aus der in Figur 12 gezeigten Ventilinsel.
UL | UR | S1L | S2L | S1R | S2R | Betriebsart | |
1 | 0 | 0 | Pzu | Roffen | Pzu | Roffen | Antrieb frei beweglich |
2 | L | 0 | Poffen | Rzu | Pzu | Roffen | Antrieb nach rechts |
3 | 0 | L | Pzu | Roffen | Poffen | Rzu | Antrieb nach links |
4 | L | L | Poffen | Rzu | Poffen | Rzu | Antrieb fixiert |
UL | UR | S1L | S2L | S1R | S2R | Betriebsart | |
1 | 0 | 0 | Pzu | Rzu | Pzu | Rzu | Antrieb fixiert |
2 | 0 | L | Pzu | Rauf | Pauf | Rzu | Antrieb nach links |
3 | L | O | Pauf | Rzu | Pzu | Rauf | Antrieb nach rechts |
4 | L | L | Pauf | Rauf | Pauf | Rauf | Antrieb fixiert |
Claims (6)
- Baugruppe aus einem Vorsteuerventil (10) und vier Schaltventilen (S), insbesondere zur Ansteuerung von Stellgliedern (1), dadurch gekennzeichnet, daß das Vorsteuerventil (10) ein 4/3- Wege-Ventil ist.
- Baugruppe nach Anspruch 1, dadurch gekennzeichnet, daß das Vorsteuerventil ein Gehäuse (12) enthält, in dem zwei Steuerkammern (20; 30) gebildet sind, die gegeneinander isoliert sind und jeweils einen Arbeitsanschluß sowie zwei Druckanschlüsse aufweisen, wobei zwei der Anschlüsse mit jeweils einem Dichtsitz (21, 22; 31, 32) versehen sind, sowie ein Schaltelement (14), das bewegbar im Gehäuse (12) gelagert ist und in jeder Schaltkammer (20; 30) ein Dichtteil (24; 34) aufweist, das mit den Dichtsitzen (21, 22; 31, 32) derart zusammenwirken kann, daß diese geöffnet oder geschlossen sind, und ein Betätigungsorgan (16) für das Schaltelement (14), wobei das Betätigungsorgan (16) das Schaltelement (14) in drei Stellungen bringen kann.
- Baugruppe nach Anspruch 2, dadurch gekennzeichnet, daß die Dichtsitze (21, 22; 31, 32) einer Steuerkammer (20; 30) einander gegenüberliegend auf der einen und der anderen Seite der Steuerkammer angeordnet sind und das in dieser Steuerkammer angeordnete Dichtteil (24, 34) entweder an dem einen oder dem anderen Dichtsitz anliegt.
- Baugruppe nach Anspruch 3, dadurch gekennzeichnet, daß die in den beiden Steuerkammern angeordneten Dichtteile (24; 34) sich in unterschiedlichen Ebenen erstrecken und in der Ruhestellung eines der Dichtteile (24) an dem auf der einen Seite der entsprechenden Steuerkammer (20) angeordneten Dichtsitz (21) anliegt, während das andere Dichtteil (34) an dem auf der anderen Seite der anderen Steuerkammer (30) angeordneten Dichtsitz (32) anliegt.
- Baugruppe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schaltventile (S) Membranventile sind.
- Baugruppe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Schaltventile (S) eine Durchflußverstärkungsfunktion haben.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29822958U DE29822958U1 (de) | 1998-12-23 | 1998-12-23 | Baugruppe zur Ansteuerung von Stellgliedern |
DE29822958U | 1998-12-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1013941A1 true EP1013941A1 (de) | 2000-06-28 |
EP1013941B1 EP1013941B1 (de) | 2005-02-23 |
Family
ID=8067115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99125318A Expired - Lifetime EP1013941B1 (de) | 1998-12-23 | 1999-12-20 | Baugruppe zur Ansteuerung von Stellgliedern |
Country Status (3)
Country | Link |
---|---|
US (1) | US6286547B1 (de) |
EP (1) | EP1013941B1 (de) |
DE (2) | DE29822958U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004027268A1 (de) * | 2002-09-13 | 2004-04-01 | Imi Norgren-Herion Fluidtronic Gmbh & Co. Kg | Mehrwegeventil |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6357335B1 (en) * | 1999-12-23 | 2002-03-19 | Sox Corporation | Pneumatic volume booster for valve positioner |
US7156121B2 (en) * | 2003-12-11 | 2007-01-02 | Cox Christopher L | Valve position monitor and method of use |
DE102004045057A1 (de) * | 2004-09-15 | 2006-03-30 | Bar-Pneumatische Steuerungssysteme Gmbh | Steuerventil |
EP1899634B1 (de) | 2005-06-27 | 2011-08-24 | Bürkert Werke GmbH | Ventilvorrichtung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1249404A (fr) * | 1959-11-14 | 1960-12-30 | Rech Etudes Production Sarl | Vérin hydraulique autonome à alimentation électrique et à commande électrique |
US3556144A (en) * | 1969-11-10 | 1971-01-19 | Nordberg Manufacturing Co | Directional control valve and method of making |
DE3630200A1 (de) * | 1986-09-04 | 1988-03-17 | Rexroth Mannesmann Gmbh | Hydraulisches servoventil |
US4765370A (en) * | 1985-11-29 | 1988-08-23 | Fujikura Rubber Ltd. | Directional control valve |
DE19502212C1 (de) * | 1995-01-25 | 1996-07-11 | Samson Ag | Elektropneumatischer Umformer |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2569881A (en) * | 1945-06-07 | 1951-10-02 | Parker Appliance Co | Remotely controlled reversing valve |
US2891518A (en) * | 1956-12-10 | 1959-06-23 | Krapf John Albert | Valve mechanism for controlling delivery of fluid under pressure to a fluid operatedmotor |
USRE26028E (en) * | 1963-05-16 | 1966-05-17 | Pilot operated control valve mechanism | |
US3411536A (en) * | 1966-07-06 | 1968-11-19 | Koehring Co | Pilot operated control valve mechanism |
USRE29481E (en) * | 1971-02-01 | 1977-11-29 | Fluid Devices, Ltd. | Multi-way directional fluid flow control valve arrangement |
DE2147439A1 (de) * | 1971-09-23 | 1973-04-05 | Abex Gmbh | Hydraulische schaltung und ventilanordnung |
JPS58180877A (ja) * | 1982-02-12 | 1983-10-22 | Toyooki Kogyo Co Ltd | 方向制御弁装置 |
US4540020A (en) * | 1984-04-20 | 1985-09-10 | Taplin John F | Supply control valve with integral pressure limiter |
US4516605A (en) * | 1984-04-20 | 1985-05-14 | Taplin John F | Four-way control valve |
LU85774A1 (fr) * | 1985-02-13 | 1985-07-24 | Hydrolux Sarl | Hydraulischer steuerblock |
JPS62127583A (ja) * | 1985-11-29 | 1987-06-09 | Fujikura Rubber Ltd | ダイアフラム型パイロツト操作方向切換弁 |
JPS62209277A (ja) * | 1986-03-10 | 1987-09-14 | Fujikura Rubber Ltd | 空圧式流路切換弁 |
DE29507380U1 (de) * | 1995-05-03 | 1995-08-24 | Buerkert Werke Gmbh & Co | Fluidisches Steuerelement |
-
1998
- 1998-12-23 DE DE29822958U patent/DE29822958U1/de not_active Expired - Lifetime
-
1999
- 1999-12-15 US US09/461,760 patent/US6286547B1/en not_active Expired - Fee Related
- 1999-12-20 EP EP99125318A patent/EP1013941B1/de not_active Expired - Lifetime
- 1999-12-20 DE DE59911655T patent/DE59911655D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1249404A (fr) * | 1959-11-14 | 1960-12-30 | Rech Etudes Production Sarl | Vérin hydraulique autonome à alimentation électrique et à commande électrique |
US3556144A (en) * | 1969-11-10 | 1971-01-19 | Nordberg Manufacturing Co | Directional control valve and method of making |
US4765370A (en) * | 1985-11-29 | 1988-08-23 | Fujikura Rubber Ltd. | Directional control valve |
DE3630200A1 (de) * | 1986-09-04 | 1988-03-17 | Rexroth Mannesmann Gmbh | Hydraulisches servoventil |
DE19502212C1 (de) * | 1995-01-25 | 1996-07-11 | Samson Ag | Elektropneumatischer Umformer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004027268A1 (de) * | 2002-09-13 | 2004-04-01 | Imi Norgren-Herion Fluidtronic Gmbh & Co. Kg | Mehrwegeventil |
Also Published As
Publication number | Publication date |
---|---|
DE59911655D1 (de) | 2005-03-31 |
DE29822958U1 (de) | 1999-04-22 |
EP1013941B1 (de) | 2005-02-23 |
US6286547B1 (en) | 2001-09-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2737675C3 (de) | Elektromagnetisch betätigbares, mit Druckfluid umsteuerbares Wegeventil für einen Servomotor | |
DE2315425C2 (de) | Elektromagnetisch betätigtes Wegeventil | |
DE2446963C2 (de) | Hydraulische Stelleinrichtung | |
DE4309695A1 (de) | Steuereinrichtung für ein Mehrwegeventil | |
DE1750358B2 (de) | Elektrohydraulische Steuereinrichtung | |
DE112016004541T5 (de) | Schieberventil | |
EP0150493B1 (de) | Steuerventil | |
EP1013942B1 (de) | Steuerelement für Fluid | |
EP1013941B1 (de) | Baugruppe zur Ansteuerung von Stellgliedern | |
EP0085298A1 (de) | Mehrwegeventil, insbesondere zur Verwendung in Dialyse-Geräten | |
EP0463394B1 (de) | Elektromagnetisch betätigbares Wegeventil | |
AT391178B (de) | 5/3-wege-ventileinheit | |
DE2023504A1 (de) | ||
EP0686775A1 (de) | Elektropneumatische Ventileinrichtung | |
EP0370131A1 (de) | Vorgesteuertes Dreiwegeventil | |
DE2928015A1 (de) | Steuereinrichtung | |
DE2904293C2 (de) | ||
EP1591706A1 (de) | Vorgesteuertes 4/3-Wegeventil | |
DE2929578C2 (de) | ||
EP0166077A2 (de) | Türventil | |
DE2451999C3 (de) | Druckmittelbetriebener Stellmotor | |
DE19834786C2 (de) | Elektromagnetisches Wegesitzventil | |
DE2850291A1 (de) | Servobetaetigtes dreiwegeventil | |
DE3018972C2 (de) | Magnetventil | |
DE2410767C3 (de) | Elektromagnetische Absperr- und Drosselvorrichtung |
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): DE FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
GBC | Gb: translation of claims filed (gb section 78(7)/1977) | ||
EL | Fr: translation of claims filed | ||
17P | Request for examination filed |
Effective date: 20001123 |
|
AKX | Designation fees paid |
Free format text: DE FR GB IT |
|
17Q | First examination report despatched |
Effective date: 20030903 |
|
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 GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 59911655 Country of ref document: DE Date of ref document: 20050331 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050412 |
|
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: 20051124 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081212 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081216 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20081227 Year of fee payment: 10 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091220 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100831 |
|
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: 20091231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091220 |
|
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: 20091220 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20131218 Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59911655 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: 20150701 |