EP1298679A1 - Pilote électro-pneumatique - Google Patents

Pilote électro-pneumatique Download PDF

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Publication number
EP1298679A1
EP1298679A1 EP02292342A EP02292342A EP1298679A1 EP 1298679 A1 EP1298679 A1 EP 1298679A1 EP 02292342 A EP02292342 A EP 02292342A EP 02292342 A EP02292342 A EP 02292342A EP 1298679 A1 EP1298679 A1 EP 1298679A1
Authority
EP
European Patent Office
Prior art keywords
carcass
pilot
assembly
electro
core
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
EP02292342A
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German (de)
English (en)
Other versions
EP1298679B1 (fr
Inventor
Franck Derouet
Jean-Marc Balat
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.)
Asco SAS
Original Assignee
Asco Joucomatic SA
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Filing date
Publication date
Application filed by Asco Joucomatic SA filed Critical Asco Joucomatic SA
Publication of EP1298679A1 publication Critical patent/EP1298679A1/fr
Application granted granted Critical
Publication of EP1298679B1 publication Critical patent/EP1298679B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
    • H01F7/12—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
    • H01F7/1205—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors

Definitions

  • the present invention relates to improvements made to electro-pneumatic pilots. It is more particularly aimed at a pilot of small dimensions (that is to say having a length of the order of 3 cm), and low power, with standard electrical and pneumatic interfaces simple to set up, which makes it possible to produce sets of the type cartridge.
  • the technical problem which the invention intends to solve is that of obtain excellent optimization of the magnetic circuit and the fluid circuit, this with a slight increase in the cost price.
  • an electro-pneumatic pilot characterized in that it comprises a ring flow interposed between the mobile core, the stirrup and the carcass of the sub-assembly electromagnetic pilot, said ring bearing on the spring of the movable core and being provided with a cooperating longitudinal slot with corresponding passages provided in the carcass, between the core mobile and the latter, for the passage of the fluid towards the exhaust of the pilot.
  • the carcass has an elliptical section and is spared in its bore intended to receive the movable core, lateral channels for the passage of fluid towards the exhaust, these channels communicating with the slot of the ring flow.
  • the electrical interface of the sub-assembly electromagnetic of the pilot is carried out by means of two sticks can be connected to standard printed circuit connectors.
  • the pilot comprises, as known, a subset electromagnetic designated by the reference 10, on which comes install a pneumatic switching sub-assembly 12.
  • the latter includes the pressure admission path 14 and the use path 13 as well a valve 15 serving as a shutter member to the pressure admission channel 14, this valve 15 being mounted in a plate 16 in which the seat of this valve.
  • the electromagnetic sub-assembly 10 comprises a carcass 17 receiving the coil 18 of the electromagnet, the internal bore of the carcass 17 receiving the fixed yoke 19 as well as the movable core 20 of the electromagnet.
  • This core mobile 20 is recalled by a spring 21.
  • the constituent elements of this sub-assembly 10 are held in a caliper 22.
  • a flow ring 23 is interposed between the core mobile 20, the caliper 22 and the carcass 17, this ring coming to bear on the spring 21 of the movable core 20, as can be clearly seen in FIGS. 1 and 4.
  • the flow ring 23 has a longitudinal slot 24 (see FIGS. 2 and 4) so as to allow the passage of the fluid towards the exhaust path 25.
  • the carcass 17 comprises lateral channels 26 opening out from a part on the slot 24 and on the other hand on the exhaust 25. Thanks to this layout, better optimization of the magnetic circuit and fluid circuit, for a low additional cost due to the presence of the flow ring split, the latter allowing the passage of fluid in the cylinder head.
  • the slot 24 is dimensioned so as to obtain the flow required on the exhaust channel 25.
  • the flux ring also participates in the centering of the various elements described above, constituting the electromagnetic sub-assembly 10 of the pilot according to the present invention.
  • the carcass 17 has a section of substantially elliptical shape (see Figure 3). Lateral channels 26 communicating with the slot 24 of the flow ring 23, are provided longitudinally in the bore of the carcass 17 receiving the movable core 20. This characteristic, that is to say the elliptical section of the carcass 17, allows, for the same width, to easily carry out the fluid passages and increase the volume of copper in the coil 18.
  • the electrical interface of the electromagnetic sub-assembly 10 is produced by via two sticks such as 27 which can be connected to standard printed circuit connectors.
  • FIGS. 5 and 6 show a double pilot in which each of the pilots 30, 30 'presents the characteristics of the pilot illustrated by FIGS. 1 to 4.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

Pilote électro-pneumatique, caractérisé en ce qu'il comporte une bague de flux (23) interposée entre le noyau mobile (20), l'étrier (22) et la carcasse (17), du sous-ensemble électromagnétique (10) du pilote, cette bague de flux (23) prenant appui sur le ressort de rappel (21) du noyau (20) et étant munie d'une fente longitudinale (24) coopérant avec des passages correspondants (26) prévus dans la carcasse (17), entre le noyau (20) et cette dernière, pour le passage du fluide vers l'échappement (25). <IMAGE>

Description

La présente invention est relative à des perfectionnements apportés à des pilotes électro-pneumatiques. Elle vise plus particulièrement un pilote de petites dimensions (c'est-à-dire présentant une longueur de l'ordre de 3 cm), et de faible puissance, ayant des interfaces électrique standard et pneumatique simple à mettre en place, ce qui permet de réaliser des ensembles du type cartouche.
Le problème technique qu'entend résoudre l'invention est celui qui consiste à obtenir une excellente optimisation du circuit magnétique et du circuit de fluide, ceci avec une faible augmentation du prix de revient.
La solution à ce problème technique est apportée, selon la présente invention, par un pilote électro-pneumatique caractérisé en ce qu'il comporte une bague de flux interposée entre le noyau mobile, l'étrier et la carcasse du sous-ensemble électromagnétique du pilote, ladite bague prenant appui sur le ressort de rappel du noyau mobile et étant munie d'une fente longitudinale coopérant avec des passages correspondants prévus dans la carcasse, entre le noyau mobile et cette dernière, pour le passage du fluide vers l'échappement du pilote.
Selon un mode de réalisation préféré de la présente invention, la carcasse présente une section de forme elliptique et l'on ménage dans son alésage destiné à recevoir le noyau mobile, des canaux latéraux pour le passage du fluide vers l'échappement, ces canaux communiquant avec la fente de la bague de flux.
Selon la présente invention, l'interface électrique du sous-ensemble électromagnétique du pilote est réalisée par l'intermédiaire de deux pinoches pouvant se brancher sur des connecteurs de circuits imprimés standard.
D'autres caractéristiques et avantages de la présente invention ressortiront de la description faite ci-après, en référence aux dessins annexés qui en illustrent un exemple de réalisation dépourvu de tout caractère limitatif. Sur les dessins :
  • la figure 1 est une coupe axiale longitudinale d'un pilote électro-pneumatique selon la présente invention ;
  • la figure 2 est une coupe selon 2-2 de la figure 1 ;
  • la figure 3 est une coupe selon 3-3 de la figure 1 ;
  • la figure 4 est une coupe axiale verticale, passant par l'étrier du sous-ensemble électro-magnétique du pilote illustré par la figure 1 ;
  • la figure 5 est une coupe selon 5-5 de la figure 6 représentant un double pilote réalisé conformément à l'invention, par l'assemblage de deux pilotes selon les figures 1 à 4 et
  • la figure 6 est une coupe selon 6-6 de la figure 5.
En se référant aux dessins et plus particulièrement aux figures 1 à 4, on voit que le pilote selon la présente invention comporte comme connu un sous-ensemble électromagnétique désigné par la référence 10, sur lequel vient se monter un sous-ensemble de commutation pneumatique 12. Ce dernier comporte la voie d'admission de pression 14 et la voie d'utilisation 13 ainsi qu'un clapet 15 servant d'organe d'obturation à la voie d'admission de pression 14, ce clapet 15 étant monté dans une plaque 16 dans laquelle est ménagé le siège de ce clapet.
Le sous-ensemble électromagnétique 10 comporte une carcasse 17 recevant la bobine 18 de l'électro-aimant, l'alésage interne de la carcasse 17 recevant la culasse fixe 19 ainsi que le noyau mobile 20 de l'électro-aimant. Ce noyau mobile 20 est rappelé par un ressort 21. Les éléments constitutifs de ce sous-ensemble 10 sont maintenus dans un étrier 22. Il s'agit là de dispositions connues de l'Homme de l'art et pour ces raisons, toute description complémentaire paraít superflue.
Selon la présente invention, on interpose une bague de flux 23 entre le noyau mobile 20, l'étrier 22 et la carcasse 17, cette bague venant prendre appui sur le ressort 21 du noyau mobile 20, ainsi qu'on le voit clairement sur les figures 1 et 4. La bague de flux 23 comporte une fente longitudinale 24 (voir les figures 2 et 4) de façon à permettre le passage du fluide vers la voie d'échappement 25. A cet effet, la carcasse 17 comporte des canaux latéraux 26 débouchant d'une part sur la fente 24 et d'autre part sur l'échappement 25. Grâce à cette disposition, on obtient une meilleure optimisation du circuit magnétique et du circuit de fluide, pour un faible surcoût dû à la présence de la bague de flux fendue, cette dernière permettant le passage du fluide dans la culasse.
Selon la présente invention, la fente 24 est dimensionnée de façon à obtenir le débit requis sur la voie d'échappement 25. La bague de flux 23 maintenue par le ressort 21 du noyau mobile 20, sort suffisamment de son logement dans l'étrier 22 pour permettre un passage du fluide malgré la présence du ressort 21. On notera que la bague de flux participe également au centrage des divers éléments décrits ci-dessus, constituant le sous-ensemble électromagnétique 10 du pilote selon la présente invention.
Dans l'exemple de réalisation illustré ici, la carcasse 17 présente une section de forme sensiblement elliptique (voir la figure 3). Les canaux latéraux 26 communiquant avec la fente 24 de la bague de flux 23, sont ménagés longitudinalement dans l'alésage de la carcasse 17 recevant le noyau mobile 20. Cette caractéristique, c'est-à-dire la section elliptique de la carcasse 17, permet, pour une même largeur, de réaliser facilement les passages de fluide et d'augmenter le volume du cuivre de la bobine 18.
L'interface électrique du sous-ensemble électromagnétique 10 est réalisée par l'intermédiaire de deux pinoches telles que 27 pouvant se brancher sur des connecteurs de circuits imprimés standard.
L'invention permet notamment de réaliser des ensembles constitués par le couplage et l'assemblage de plusieurs pilotes tels que décrits ci-dessus. Ainsi, on a représenté sur les figures 5 et 6, une double pilote dans lequel chacun des pilotes 30, 30' présente les caractéristiques du pilote illustré par les figures 1 à 4.
Il demeure bien entendu que la présente invention n'est pas limitée aux exemples de réalisation décrits et représentés ci-dessus, mais qu'elle en englobe toutes les variantes.

Claims (3)

  1. Pilote électro-pneumatique, caractérisé en ce qu'il comporte une bague de flux (23) interposée entre le noyau mobile (20), l'étrier (22) et la carcasse (17), du sous-ensemble électromagnétique (10) du pilote, cette bague de flux (23) prenant appui sur le ressort de rappel (21) du noyau (20) et étant munie d'une fente longitudinale (24) coopérant avec des passages correspondants (26) prévus dans la carcasse (17), entre le noyau (20) et cette dernière, pour le passage du fluide vers l'échappement (25).
  2. Pilote électro-pneumatique selon la revendication 1, caractérisé en ce que la carcasse (17) présente une section de forme elliptique et elle comporte, dans son alésage destiné à recevoir le noyau mobile (20), des canaux latéraux (26) qui communiquent avec la fente (24) de la bague de flux (23), pour permettre le passage du fluide vers l'échappement (25).
  3. Pilote électro-pneumatique selon l'une des revendications 1 ou 2, caractérisé en ce que l'interface électrique du sous-ensemble électromagnétique (10) est réalisée par l'intermédiaire de deux pinoches (27) pouvant se brancher sur des connecteurs de circuits imprimés standard.
EP02292342A 2001-10-01 2002-09-24 Pilote électro-pneumatique Expired - Lifetime EP1298679B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0112609 2001-10-01
FR0112609A FR2830368B1 (fr) 2001-10-01 2001-10-01 Pilote electro-pneumatique

Publications (2)

Publication Number Publication Date
EP1298679A1 true EP1298679A1 (fr) 2003-04-02
EP1298679B1 EP1298679B1 (fr) 2008-12-10

Family

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Family Applications (1)

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EP02292342A Expired - Lifetime EP1298679B1 (fr) 2001-10-01 2002-09-24 Pilote électro-pneumatique

Country Status (4)

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EP (1) EP1298679B1 (fr)
AT (1) ATE417351T1 (fr)
DE (1) DE60230222D1 (fr)
FR (1) FR2830368B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator

Families Citing this family (11)

* Cited by examiner, † Cited by third party
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US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410320A (en) * 1945-06-28 1946-10-29 Phillips Control Corp Shaded pole construction for solenoids
US4200972A (en) * 1977-07-18 1980-05-06 Robertshaw Controls Company Method of manufacturing a solenoid
US5127625A (en) * 1990-02-19 1992-07-07 Avl Medical Instruments Ag Electromagnetically actuated valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410320A (en) * 1945-06-28 1946-10-29 Phillips Control Corp Shaded pole construction for solenoids
US4200972A (en) * 1977-07-18 1980-05-06 Robertshaw Controls Company Method of manufacturing a solenoid
US5127625A (en) * 1990-02-19 1992-07-07 Avl Medical Instruments Ag Electromagnetically actuated valve

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator

Also Published As

Publication number Publication date
EP1298679B1 (fr) 2008-12-10
ATE417351T1 (de) 2008-12-15
DE60230222D1 (de) 2009-01-22
FR2830368A1 (fr) 2003-04-04
FR2830368B1 (fr) 2003-12-19

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