EP1519054A2 - Distributeur piloté à voies multiples - Google Patents

Distributeur piloté à voies multiples Download PDF

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Publication number
EP1519054A2
EP1519054A2 EP04019351A EP04019351A EP1519054A2 EP 1519054 A2 EP1519054 A2 EP 1519054A2 EP 04019351 A EP04019351 A EP 04019351A EP 04019351 A EP04019351 A EP 04019351A EP 1519054 A2 EP1519054 A2 EP 1519054A2
Authority
EP
European Patent Office
Prior art keywords
valve
pilot
housing main
main part
housing
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
Application number
EP04019351A
Other languages
German (de)
English (en)
Other versions
EP1519054B1 (fr
EP1519054A3 (fr
Inventor
Grzegorz Bogdanowicz
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1519054A2 publication Critical patent/EP1519054A2/fr
Publication of EP1519054A3 publication Critical patent/EP1519054A3/fr
Application granted granted Critical
Publication of EP1519054B1 publication Critical patent/EP1519054B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/0807—Manifolds
    • F15B13/0817—Multiblock 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
    • F15B13/04—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
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool 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
    • 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
    • F15B13/0839—Stacked plate type 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
    • F15B13/06—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
    • F15B13/0846—Electrical details
    • F15B13/085—Electrical controllers
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric

Definitions

  • the invention relates to a pilot-operated multiway valve, with a main valve, which has a main valve body and an in a slider receiving the same arranged elongated valve spool having, wherein the valve spool a the connection between the side opening into the slider receptacle Valve channels controlling control section and at least one end for controlled fluid loading having serving drive portion, wherein at least the part containing the control section of the slider receptacle in a one-piece housing main body of the main valve body located, and with at least one with the Main valve to a module combined pilot valve for controlling the fluid admission of at least one Drive portion of the valve spool, the one at a with a pilot valve seat equipped mounting interface mounted and an electrically operated pilot element having headpiece.
  • a multi-way valve of this type is known from US Pat. No. 5,597,015 via a main valve with a main valve body, the one the control portion of the valve spool receiving one-piece housing body and two at opposite Having end faces attached thereto lid parts.
  • a pilot valve installed, the itself from an attached to the cover part intermediate plate and a head piece attached to the intermediate plate.
  • the intermediate plate defines a mounting interface and a pilot valve seat for a header of the Pilot valve that attach to the mounting interface leaves and an electromagnetically actuated pilot member which cooperates with the valve seat to the fluid loading of an end-side drive section to control the valve spool.
  • the main valve and the pilot valve are thus combined to form an assembly, which is composed of relatively many components, which is a not inconsiderable expense for the production and assembly of the multi-way valve conditionally.
  • DE 41 10 926 C2 discloses a pressure limiting valve, the one valve housing with end-mounted control valves having. Inside the valve housing is a bush-shaped Valve insert attached, formed on the valve seats which interact with valve members which be acted upon by the control valves. Also the production This pressure relief valve is relatively cumbersome.
  • At least one Mounting interface including the associated pilot valve seat an integral part of the casing body of the main valve body is to which the head piece of the relevant pilot valve is directly attached.
  • pilot-operated multi-way valve with increased degree of integration.
  • the headpiece of at least one Pilot valve is no longer under interposition of a additional intermediate plate installed on the housing main body, but directly to a directly on the housing main body trained mounting interface, where at the same time the associated pilot valve seat on the housing main body is provided. It saves a cumbersome in this way Assembly of a variety of separate parts and can also reduce the manufacturing costs, because the pilot valve seat directly in the production of the housing main part can be realized.
  • Such a design in a plastic material existing Housing main part since the possibility is created here Injection molding of the housing main body, the mounting interface and the associated pilot valve seat directly to form in one piece.
  • the housing main part has an elongated shape.
  • This can be at least one mounting interface with the associated pilot valve seat on one longitudinal side the housing main body are, with this longitudinal side at later intended use of the multi-way valve in particular represents the top of the valve.
  • the mounting interface with the pilot valve seat to provide a front side of the housing main body.
  • a manual independent of the power supply To be able to actuate a pilot valve, this is expediently a manual override device assigned.
  • a pilot valve In conjunction with a pilot valve, its mounting interface and pilot valve seat as a component the housing main part are executed is equiprobrice also the manual override in the Housing main part integrated.
  • an operable from the outside actuator of the manual override device in a recess of the housing main part to arrange.
  • the invention can be both multiway valves with only a pilot valve as well as in embodiments with two Implement pilot valves.
  • the Possibility of the two pilot valves to a pilot unit To summarize, which is a header with two pilot elements at a mounting interface of the Housing body is mounted, with two integrated Valve seats is equipped.
  • the at least one electrically actuable pilot valve it is in particular a solenoid valve. It However, other designs are possible, for example in Shape of a piezo valve.
  • the figure shows a total denoted by reference numeral 1 pilot-operated multi-way valve, as an example as a component a valve assembly, in addition, at least one more preferably plate-like fluid distributor.
  • 2 has, on which the multi-way valve 1 - by means of suitable Fasteners 3 - is releasably attached.
  • the multi-way valve 1 serves to control fluid flows, wherein it is in the medium to be controlled in particular to Compressed air acts. In principle, it can also be to act a different gaseous or hydraulic fluid.
  • the multi-way valve 1 has a main valve 4, which with at least one and in the embodiment with two pilot valves 5a, 5b is combined to form an assembly.
  • the pilot valves 5a, 5b serve the controlled fluid admission an elongate valve spool 6 of the main valve 4, to shift it linearly and as desired position.
  • pilot valves 5a, 5b are electrically actuated types and executed in the embodiment as solenoid valves. In principle, however, would be other types of valves used as pilot valves, such as piezo valves.
  • the main valve 4 has a main valve housing 7 with a elongated, one-piece housing main part 8, in which a in Longitudinal slide valve 12 formed that is, at least the most of the length of the valve spool 6 engaging control section 13 of the valve spool 6 absorbs.
  • This control section 13 serves the connection between the side opening into the slider recording Valve channels 14 to control by depending on the position these valve channels 14 fluidly in a predetermined pattern connects or disconnects from each other.
  • the valve spool as in the embodiment as a spool executed, its control section 13 includes a plurality axially alternately successively arranged longitudinal sections larger and smaller diameter.
  • a length portion of smaller diameter of the control section 13 to lie within a sealing means 15, results in between an annular overflow section, which allows the fluid to pass between the adjacent lengths the slide holder 12 and with this to flow over connected valve channels.
  • the valve spool 6 is in the region of its two axial ends each with a controlled Fluidbeetzschung enabling Drive section 16a, 16b equipped.
  • everyone Drive section 16a, 16b has for this purpose one of the Fluid acted upon end face 17.
  • both drive sections 16a, 16b are integral with the control section 13, wherein the entire valve spool 6 is a one-piece structure as a whole.
  • the diameter of the drive sections 16a, 16b the diameter of the longitudinal sections larger Diameter of the control section 13 corresponds. Indeed it would be readily possible, the drive sections 16a, 16b as with respect to the control section 13 separate components perform.
  • the drive sections 16a, 16b piston-like shape with a Outer diameter which is greater than that of the longitudinal sections larger diameter of the control section 13th
  • the fluid loading of the drive sections 16a, 16b becomes each controlled by one of the two pilot valves 5a, 5b. This allows the valve spool 6 in opposite Shift directions of its longitudinal axis and as needed position.
  • the multi-way valve 1 a 4/2 valve functionality.
  • the multi-way valve 1 with only one Pilot valve 5a if, by other means, For example, a spring device, a provision of Valve spool 6 is ensured in a basic position.
  • valve channels 14 are, inter alia, a Feeding channel 14a, the axially on both sides of each one Venting channel 14b, 14c is flanked. These channels communicate with in the fluid distributor 2 extending fluid distribution channels 18, fed and discharged through which the pressure medium becomes.
  • Two further valve channels 14 are as working channels 14d, 14e trained and lead, for example, to the fluid distributor 2 opposite top of the housing main body. 8 out. There they are provided with connection means 22, which is the enable in particular detachable connection of fluid lines, leading to a consumer to be operated, for example to a drive activatable by fluid force.
  • the main valve 4 is designed in the embodiment so that not only the control section 13 but also the drive sections 16a, 16b and thus the entire valve spool 6 lies within the one-piece housing main part 8.
  • the valve spool 6 protrudes with its the drive sections 16a, 16b forming end portions each in a frontal End portion 23a, 23b of the slider receptacle 12 in, by external sealing means 15 'from the central area the slide holder 12 is separated, in which the Control section 13 is located.
  • the slider receptacle 12 is at a in the drawing right first end face by a front-side wall portion 24 of the housing main part. 8 tightly closed.
  • the frontal wall portion 24 is so one-piece component of the slide holder 12 circumferentially enclosing housing body 8.
  • the slider receptacle 12 from the housing body 8 not limited, so that they total in the manner of a blind hole is formed in the housing main body 8.
  • Your longitudinal axis runs parallel to the longitudinal axis of the housing main part 8th.
  • the slider receptacle 12 is through a separate cover part 25 of the main valve housing 7 under Sealing and in particular releasably closed.
  • the in the region of the first end face of the slide holder 12th arranged first pilot valve 5a is partially in unit with the housing main part 8 of the main valve housing. 7 educated.
  • the first pilot valve 5a includes a bottom part 26 a, that of the front wall portion 24th defining end portion of the housing main body 8 is formed is.
  • a mounting interface 27a is formed, the one integral with the housing main body 8 executed Pilot valve seat 28a has. The latter is expediently recessed a little way within the housing main part 8 housed.
  • the bottom part 26a has the first pilot valve 5a via a head piece 32, which is a movable pilot member 33, which is a bit far from the below as a pilot housing 34 designated housing of the head piece 32 stands out.
  • the pilot member 32 is in the embodiment formed by a movable armature 35 or coupled with this movement, the at least one in the Pre-control housing 34 associated solenoid coil 36 assigned is that via externally accessible electrical contact means 37 can be acted upon by an excitation voltage.
  • the header 32 is mounted to the mounting interface 27a, wherein the pilot housing 34 directly on the front side the housing main part 8 is applied and wherein the pilot member 33, a position opposite the pilot valve seat 28a occupies.
  • the attachment to the main valve housing 7 takes place for example, by means of dash-dotted lines indicated fastening screws 38 or other fasteners.
  • the housing main part 8 is made Plastic material, if necessary by fibers or other Elements can be reinforced. It is by pouring, in particular produced by injection molding.
  • the pilot valve seat 28a may be an integral part of the housing body 8 are made directly. A such one piece of housing main body 8 and pilot valve seat 28a, however, is also metallic Construction readily possible.
  • the pilot valve seat 28a defines the mouth of a pilot feed passage 42a, the one for actuating the valve spool 6 introduces required pressure medium. In the embodiment he branches for this purpose within the housing main body 8 from the feed channel 14a.
  • the pilot valve seat 28a is in one of a frontal depression of the housing main part 8 defined Valve chamber 43 a, in which the pilot member 33 protrudes. From her goes from a pilot control working channel 44a, the wall the housing main part 8 passes through and in the first front end portion 23a of the slider receptacle 12 opens.
  • a pilot exhaust passage 45a is provided, the - in particular on the pilot member 33 over - the Valve chamber 43a connects to the environment, where he has a the back of the pilot member 33 opposite Vent valve seat 46a has.
  • the first pilot valve 5a with a 3/2-valve function operate.
  • the pilot control element 33 is under the action of a schematically indicated spring 47 on the pilot valve seat 28a and blocks the pilot feed passage 42a. simultaneously is the front end portion 23a via the pilot working channel 44a and the pilot exhaust passage 45a to Atmosphere vented.
  • the second pilot valve 5b can thus the valve spool. 6 in the drawing to the right in the below the midline shown first switch position spent.
  • the main difference between the two pilot valves 5a, 5b is that the second pilot valve 5b, the bottom part 26b is not an integral part of the Housing main part 8, but from the separate from the housing main body 8 executed lid part 25 is formed. consequently is located at the second pilot valve 5b also the mounting interface 27b and the pilot valve seat 28b on the cover part 25.
  • the operation of the two pilot valves 5a, 5b is identical, so that the valve slide. 6 through coordinated admission and venting the front end portions 23a, 23b of the slider receptacle 12 optionally shifted in one or the other direction can be.
  • the bottom part 26b is formed by the lid part 25 is a slight separation from the housing main body 8 possible, so that the open end the slide holder 12 is accessible to the valve spool 6 and install the sealant 15 and if necessary to be able to uninstall.
  • the first pilot valve 5a is so formed and arranged that its pilot valve seat 28a to lie in the axial extension of the slide holder 12 comes.
  • the slide holder 12 at the first end immediately is closed by the housing main part 8.
  • the first pilot valve 5a so on the Front side of the housing main body 8 to place that in axial extension of the slide holder 12 lying zone is not occupied, so that even on this front side of a removable Cover for the slide holder 12 are provided can.
  • this cover then has no function regarding of the first pilot valve 5a.
  • dash-dotted lines at 48 indicate that if necessary, at least one pilot valve 48 also on the longitudinal side can be placed on the main valve 4, in particular at the top of the main valve housing 7.
  • a mounting interface 27c and at least one associated pilot valve seat 28 c as an integral part of the housing main part. 8 arranged on the longitudinal side and with a head piece 32nd of the respective pilot valve 48 equipped.
  • one or two pilot valves provided in a corresponding manner alongside the housing main body 8 become.
  • the multi-way valve 1 has two pilot valves, there is also the possibility of this to a pilot unit to summarize, as in the drawing at 52 indicated by dash-dotted lines.
  • a pilot unit to summarize, as in the drawing at 52 indicated by dash-dotted lines.
  • first and second pilot valves 5a, 5b it should be mentioned that these each additionally with a manual override device 53a, 53b are equipped. This is in each case in the assigned bottom part Integrated 26a, 26b.
  • the manual override device 53 a is installed in the housing main body 8 and thus is located in the same component, too the mounting interface 27a and the pilot valve seat 28a of the associated first pilot valve 5a forms.
  • the manual override device is seated 53b expediently in the lid part 25th
  • the manual override 53a, 53b via a preferably plunger-like actuator 54 have, in a transverse to the longitudinal direction of the pilot member 33 aligned recess 55 of the bottom portion 26 a, 26b is slidably disposed, wherein the recess 55 at one end to the outside of the bottom part 26 and the other in the valve chamber 43 opens.
  • the actuator 54 has a preferably formed as an inclined surface Beaufschlagungspartie 56, which engages under the pilot member 33 and the associated Pilot valve seat 28a, 28b lifts off when the actuator 54 is displaced in the direction of the pilot member 33.
  • the displacement of the actuator 54 may be caused manually become.
  • the actuator 54 has the rear side an externally accessible actuating part 57.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Servomotors (AREA)
  • Multiple-Way Valves (AREA)
EP20040019351 2003-09-25 2004-08-14 Distributeur piloté à voies multiples Expired - Lifetime EP1519054B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003144458 DE10344458B3 (de) 2003-09-25 2003-09-25 Vorgesteuertes Mehrwegeventil
DE10344458 2003-09-25

Publications (3)

Publication Number Publication Date
EP1519054A2 true EP1519054A2 (fr) 2005-03-30
EP1519054A3 EP1519054A3 (fr) 2005-07-20
EP1519054B1 EP1519054B1 (fr) 2007-02-21

Family

ID=34177937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040019351 Expired - Lifetime EP1519054B1 (fr) 2003-09-25 2004-08-14 Distributeur piloté à voies multiples

Country Status (5)

Country Link
US (1) US7207353B2 (fr)
EP (1) EP1519054B1 (fr)
AT (1) ATE354733T1 (fr)
DE (2) DE10344458B3 (fr)
ES (1) ES2279265T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426388A1 (fr) * 2010-09-07 2012-03-07 Festo AG & Co. KG Soupape à plusieurs voies précommandée

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7818264B2 (en) * 2006-06-19 2010-10-19 Visa U.S.A. Inc. Track data encryption
DE102015000763A1 (de) * 2015-01-22 2016-07-28 Wabco Gmbh Bremsmodulator für ein Druckluft-Bremssystem eines Fahrzeugs
WO2017164371A1 (fr) * 2016-03-24 2017-09-28 株式会社タダノ Système hydraulique

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US3516441A (en) * 1967-10-12 1970-06-23 Delta Hydraulies Co Suspension assembly for bobbin in servo-valve
US3902526A (en) * 1974-02-11 1975-09-02 Scovill Manufacturing Co Control valve for a fluid pressure system
US4067357A (en) * 1974-06-14 1978-01-10 Herion-Werke Kg Pilot-operated directional control valve
US4191091A (en) * 1976-07-16 1980-03-04 Control Concepts, Inc. Feathering valve assembly
DE3613746A1 (de) * 1986-04-23 1987-10-29 Concordia Fluidtechnik Gmbh Ventil
DE3613747A1 (de) * 1986-04-23 1987-10-29 Concordia Fluidtechnik Gmbh 5/3-ventil
DE3644269A1 (de) * 1986-12-23 1988-07-07 Rexroth Mannesmann Gmbh Wegeventil
DE3842633A1 (de) * 1988-12-17 1990-06-28 Wabco Westinghouse Steuerung Vorgesteuertes mehrwegeventil
LU87640A1 (de) * 1989-12-13 1990-03-13 Hydrolux Sarl Lagegeregeltes proportionalwegeventil
CA2008694A1 (fr) * 1990-01-26 1991-07-26 Ronald F. Howarth Systeme de commande de soupape
DE4023806C2 (de) * 1990-07-24 1993-11-25 Mannesmann Ag Multifunktions-Mehrwegeschieberventil
DE4110926C2 (de) * 1991-04-04 1996-04-04 Rexroth Mannesmann Gmbh Einstellbares Druckbegrenzungsventil
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EP0655575B2 (fr) * 1993-11-30 2007-03-28 Smc Corporation Electrovanne servocommandée à voies multiples
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US5996628A (en) * 1996-01-16 1999-12-07 Saturn Electronics & Engineering, Inc. Proportional variable force solenoid control valve
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DE29712709U1 (de) * 1997-07-18 1997-09-18 Festo Kg, 73734 Esslingen Mehrwegeventil
US6192937B1 (en) * 1999-04-26 2001-02-27 Mac Valves, Inc. Pilot operated pneumatic valve
DE19937974B4 (de) * 1999-08-11 2004-03-18 Festo Ag & Co. Ventileinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426388A1 (fr) * 2010-09-07 2012-03-07 Festo AG & Co. KG Soupape à plusieurs voies précommandée

Also Published As

Publication number Publication date
ATE354733T1 (de) 2007-03-15
EP1519054B1 (fr) 2007-02-21
DE10344458B3 (de) 2005-05-25
EP1519054A3 (fr) 2005-07-20
US7207353B2 (en) 2007-04-24
DE502004002941D1 (de) 2007-04-05
ES2279265T3 (es) 2007-08-16
US20050067030A1 (en) 2005-03-31

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