EP0463394B1 - Distributeur à commande électromagnétique - Google Patents

Distributeur à commande électromagnétique Download PDF

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Publication number
EP0463394B1
EP0463394B1 EP91108757A EP91108757A EP0463394B1 EP 0463394 B1 EP0463394 B1 EP 0463394B1 EP 91108757 A EP91108757 A EP 91108757A EP 91108757 A EP91108757 A EP 91108757A EP 0463394 B1 EP0463394 B1 EP 0463394B1
Authority
EP
European Patent Office
Prior art keywords
valve
pressure medium
pilot
housing
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91108757A
Other languages
German (de)
English (en)
Other versions
EP0463394A1 (fr
Inventor
Wolgang Spalt
Rolf Dipl.-Ing. Meier
Claude Dipl.-Ing. Pietsch
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0463394A1 publication Critical patent/EP0463394A1/fr
Application granted granted Critical
Publication of EP0463394B1 publication Critical patent/EP0463394B1/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
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • 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
    • F15B13/06—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
    • F15B13/0807—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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B2013/0428—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 switchable internal or external pilot pressure source

Definitions

  • the invention is based on a directional valve according to the type of the main claim.
  • an electromagnetically actuated directional control valve in which the actual directional control valve (main valve) is mounted with its valve housing on a connecting plate.
  • This connection plate is provided with channels for the supply and discharge of pressure medium.
  • two electromagnetically operable pilot valves are arranged side by side in this connection plate, which are connected to the housing of the directional control valve via channels in the connection plate.
  • One of these pilot valves is connected to one of the pressure spaces on one of the sides of the control spool of the directional valve.
  • Such a directional control valve has the disadvantage that, in addition to the valve housing, a complex connection plate with pressure medium channels is required.
  • the pressure medium routing between pilot valves and main valve through this connection plate is complex and the space required is large.
  • the changeover from internal pressure medium supply to external control pressure medium supply or vice versa presents considerable difficulties.
  • the directional control valve according to the invention with the characterizing features of the main claim has the advantage that the pilot valves are mounted on one side on the valve housing, whereby only an electrical connection part is necessary. This reduces the number of electrical contacts.
  • such a directional control valve is shorter than a valve with pilot control units arranged on both sides, and the overall height is also lower due to the omission of the intermediate plate.
  • the directional control valve can also be switched from self-control to external control by simply changing a seal.
  • FIG. 1 An embodiment of the invention is shown in the description and drawing below.
  • the latter shows in Figure 1 a perspective view of a directional control valve with two pilot valves, in Figure 2 a section through this valve and in Figure 3 a section in the direction III-III of Figure 2.
  • Figure 4 shows a section in the direction IV-IV of Figure 2 5 shows a section VV corresponding to section III-III through a modification of the directional valve.
  • the electromagnetically actuated directional valve has a housing 10 in which a continuous longitudinal bore 11 is formed. Several cutting disks 12 to 17 are inserted in this longitudinal bore, between which the control slide 18 is guided. This has two elongated annular grooves 19, 20. Between two adjacent control disks 12 to 17, a bore 22 to 26 opens, which are connected to consumers A, B, S, atmosphere R and pressure medium source P via a base plate, not shown.
  • the control slide is actuated with the aid of two pistons 27, 28 which are guided on both sides of its end faces in the longitudinal bore 11 and are sealed by seals 29A, 29B and are acted upon there via pressure chambers 30, 31.
  • the longitudinal bore 11 is closed on one side by a cover 32, in which a channel 33 is formed, which is connected to a longitudinal bore 34 in the housing 10, which in turn is connected to a channel 35 in an intermediate flange 36.
  • the channel 35 is connected to a pressure chamber 38, which is formed in a housing 39 of a pilot valve 41 fastened to the intermediate flange 36.
  • a valve seat 42, 43 is formed, between which there is an elongated cylindrical valve body 44.
  • a channel 46 which has a connection to the atmosphere, opens at the lower valve seat 43.
  • a channel 48 opens, which leads to a channel 49 in the intermediate flange 36, which in turn is connected to a channel 50, which penetrates into the longitudinal bore 11, namely between the cutting disks 14 and 15. If the electromagnet is not energized, the valve body 44 is pressed against the upper valve seat 42 by the force of a spring 47.
  • the channel 50 is connected via the channel 49 and a channel 52 to a pressure chamber 54 of a pilot valve 55, which is designed in exactly the same way as the pilot valve 41. It has two valve seats 56, 57 in a housing 53, the channel 52 on the valve seat 56 flows. A channel 58, which leads to the atmosphere, opens at valve seat 57.
  • a valve body 60 again as an armature of an electromagnet, the coil of which is designated 61.
  • the coil 61 is also connected to electrical connections 59 on the underside of the pilot valve 55.
  • a channel 62 leads from the pressure chamber 54 to the pressure chamber 30.
  • a channel 63 formed in the intermediate flange 36 is also connected to the channel 50 via the channel 49. It is separated by a seal 64 arranged between the housing 10 and the intermediate flange 36 from a channel 65 which is located in the valve housing 10 and has a connection to an external control line X in the base plate (not shown).
  • the seal 64 is designed so that it separates the channels 63 and 65 as described above and seals the merging channels in the intermediate flange 36 and in the valve housing 10 to the outside.
  • the pressure chamber 30 is connected to the atmosphere via the channel 62, the pressure chamber 54 and the channel 58 in the pilot valve 55.
  • the pressure chamber 31 is also connected to the atmosphere via the channels 33, 34, 35, the pressure chamber 38 and the channel 46 in the pilot valve 41. As a result, the pressure chambers 31, 32 are relieved and the control slide 18 remains in its position.
  • the solenoid 61 of the pilot valve 55 is excited. This closes the channel 58 on the valve seat 57 and the pressure chamber 54 is connected to the channel 52. As a result, pressure medium reaches the pressure chamber 54 of the pilot valve 55 and through the bore P and the channels 50, 49 and 52 thence via the channel 62 into the pressure chamber 30. The piston 27 is thereby pressurized on one side and moves and thus the control slide to the right, since the pressure chamber 31 is still connected to the atmosphere at the same time. For the tax movement is only a short one Pressure pulse necessary, the control slide remains in its assumed position even after the solenoid of the pilot valve is no longer energized.
  • FIG. 1 A modification of the exemplary embodiment is shown in FIG.
  • the seal 64 between the valve housing 10 and the intermediate flange 36 is replaced here by a seal 66.
  • the connection between the channels 50 and 49 is separated, while at the same time the connection between the channels 63 and 65 is made and sealed to the outside.
  • the other connections between housing 10 and intermediate flange 36 are also sealed to the outside.
  • the pressure medium is supplied to the two pilot valves 41, 55 and thus to the pressure chambers 30, 31 via the external control connection X of the base plate, specifically via channels 65, 63, 49 and 48 and 52.
  • the pressure medium supply is via channel 50 and connection P of the base plate interrupted.
  • the piston movement is analogous to the previously described embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Multiple-Way Valves (AREA)

Claims (3)

  1. Distributeur à commande électromagnétique, composé d'au moins une plaque de base pour l'alimentation en fluide sous pression et d'au moins un corps de distributeur (10) avec un tiroir de commande (18) réglable à l'aide d'au moins deux vannes de commande amont (41, 55) à commande électromagnétique, dont l'une (41) alimente par des canaux (35, 34, 33) une chambre de pression (31) pour un piston de manoeuvre (28), d'un côté du tiroir (18) et dont l'autre (55) alimente par un canal (62) une chambre de pression (30) pour un piston de manoeuvre (27) de l'autre côté du tiroir (18), distributeur caractérisé en ce que les vannes de commande amont (41, 55) sont montées de façon juxtaposée sur une face frontale du corps de distributeur (10), ce corps (10) ayant un canal (50) dérivant du canal d'alimentation en fluide sous pression (24) et un canal (65) partant d'un branchement de fluide de commande extérieur (X), et en ce que entre les vannes de commande amont (41, 55) et le corps de distributeur (10) il est prévu une bride intermédiaire (36) munie de canaux (49, 63) alignés sur les canaux (55, 65) du corps de distributeur (10) et en ce qu'entre le corps (10) et la bride intermédiaire (36) il est prévu un joint (64, 66) qui soit libère l'alimentation en fluide sous pression de commande propre ou l'alimentation en fluide sous pression de commande extérieure et ferme l'autre alimentation en fluide sous pression de commande.
  2. Distributeur selon la revendication 1, caractérisé en ce que les vannes de commande amont (41, 55) comportent chaque fois dans un corps (39, 53) une bobine électromagnétique (45, 61) et un corps de soupape (44, 60) réalisé sous forme d'induit d'un électro-aimant ainsi qu'un ressort (47, 67) agissant sur le corps de soupape.
  3. Distributeur selon l'une des revendications 1 ou 2, caractérisé en ce que chaque vanne de commande amont (41, 55) comporte deux sièges de soupape (42, 43 ou 56, 57) opposés, coaxiaux, et en ce que les sièges de soupape (42, 56) prévus d'un côté sont fermés par effet de ressort lorsque les bobines (45, 61) ne sont pas alimentées, ces sièges sont ouverts lorsque les bobines (45, 61) sont alimentées en courant et en même temps les sièges de soupape (43, 57) de l'autre côté sont fermés.
EP91108757A 1990-06-23 1991-05-29 Distributeur à commande électromagnétique Expired - Lifetime EP0463394B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020024A DE4020024A1 (de) 1990-06-23 1990-06-23 Elektromagnetisch betaetigbares wegeventil
DE4020024 1990-06-23

Publications (2)

Publication Number Publication Date
EP0463394A1 EP0463394A1 (fr) 1992-01-02
EP0463394B1 true EP0463394B1 (fr) 1993-11-03

Family

ID=6408927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91108757A Expired - Lifetime EP0463394B1 (fr) 1990-06-23 1991-05-29 Distributeur à commande électromagnétique

Country Status (3)

Country Link
EP (1) EP0463394B1 (fr)
DE (2) DE4020024A1 (fr)
ES (1) ES2046824T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019072328A1 (fr) 2017-10-10 2019-04-18 Aventics Gmbh Système de soupapes et procédé de commande

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4413657C1 (de) * 1994-04-20 1995-11-02 Festo Kg Ventilanordnung
DE4416285A1 (de) 1994-05-07 1995-11-09 Bosch Gmbh Robert Elektropneumatische Ventileinrichtung
DE19526459A1 (de) * 1995-07-20 1997-01-23 Festo Kg Ventilanordnung
FR2807793B1 (fr) 2000-04-17 2002-05-31 Parker Hannifin Rak Sa Module d'interface pour ilot de distributeurs electropneumatiques
DE10347590B3 (de) * 2003-10-14 2005-01-13 Festo Ag & Co. Verteilermodul für Ventilbatterien
DE102004042224B4 (de) * 2004-09-01 2006-07-20 Bosch Rexroth Ag Ventil mit funktionsintegrierter Steuerkolbendichtung
DE102008008314B4 (de) 2008-02-07 2010-06-02 Robert Bosch Gmbh Vorgesteuertes pneumatisches Schieberventil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550621A (en) * 1968-08-20 1970-12-29 Parker Hannifin Corp Fluid distributing manifold for directional control valve
US4726393A (en) * 1986-07-31 1988-02-23 Mosier Industries, Inc. Power valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019072328A1 (fr) 2017-10-10 2019-04-18 Aventics Gmbh Système de soupapes et procédé de commande

Also Published As

Publication number Publication date
EP0463394A1 (fr) 1992-01-02
DE59100551D1 (de) 1993-12-09
DE4020024A1 (de) 1992-01-02
ES2046824T3 (es) 1994-02-01

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