EP0077699B1 - Dispositif entièrement pneumatique, générateur d'impulsions temporisées de gaz - Google Patents

Dispositif entièrement pneumatique, générateur d'impulsions temporisées de gaz Download PDF

Info

Publication number
EP0077699B1
EP0077699B1 EP82401726A EP82401726A EP0077699B1 EP 0077699 B1 EP0077699 B1 EP 0077699B1 EP 82401726 A EP82401726 A EP 82401726A EP 82401726 A EP82401726 A EP 82401726A EP 0077699 B1 EP0077699 B1 EP 0077699B1
Authority
EP
European Patent Office
Prior art keywords
gas
timer
supplied
controlled
cell
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
Application number
EP82401726A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0077699A1 (fr
Inventor
Pierre Cognard
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT82401726T priority Critical patent/ATE14917T1/de
Publication of EP0077699A1 publication Critical patent/EP0077699A1/fr
Application granted granted Critical
Publication of EP0077699B1 publication Critical patent/EP0077699B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C1/00—Circuit elements having no moving parts
    • F15C1/22—Oscillators

Definitions

  • the invention relates to a fully pneumatic device, generator of timed gas pulses.
  • electro-pneumatic or electronic devices to carry out repetitive operations for dosing liquid or pasty products such as glues, resins, oils, greases, solvents, various reagents, or even pastes for solder or solder. These products must generally be delivered in a determined quantity from a tank.
  • applicators are used which, by means of a lever or a control pedal, ensure the metering while allowing the operator to have his hands free.
  • These devices generally use electricity. For certain specific situations, it may be necessary to avoid the use of electricity, as a safety measure.
  • the subject of the invention is a fully pneumatic device, generator of timed gas pulses, supplied by a gas source at a determined pressure, of the type comprising a regulator supplied with gas from the gas source, preset to an adequate value. and delivering a gas flow rate via a leakage pipe capable of being closed off by an operable control member, characterized in that it comprises: an amplifier relay supplied with gas from the gas source and controlled by the pressure of the gas coming from the regulator in the leakage pipe; an adjustable duration timer controlled by the amplifier relay; and a three-way cell controlled by the timer, supplied with gas from the gas source, and capable of delivering gas pulses whose duration is determined by the timer.
  • the pneumatic device according to the invention is supplied with gas under pressure by an external source 14.
  • a filter 1 to 5 or 20 microns for example, with incorporated regulator, delivers a fixed pressure comprised by example between 4 and 7 bar.
  • a miniature on-off valve 2 makes it possible to activate or deactivate the entire device.
  • the output of the filter 1 supplies a regulator 4 and a pressure gauge 5.
  • the regulator 4 is adjustable in the following ranges of values, for example: 0 to 1.3 bar, 0.1 to 4.5 bar, or 0 , 1 to 8 bar, depending on the desired applications.
  • a miniature pressure regulator 6 is preset to an adequate value allowing correct operation on the one hand of an amplifier relay 7 and on the other hand of a vacuum generator 9 via a miniature flow regulator 10.
  • the vacuum generator 9 operates correctly even under 0.5 bar.
  • the regulator 6 permanently supplies a leakage pipe 16, including a bypass piloting the amplifier relay 7, supplied by the valve 2.
  • This relay has a response time of 10 ms, and it supplies a pneumatic timer 3 delivering durations of 0 0.05 s over several minutes, gradually continuously, with good linearity up to several seconds.
  • Timer 3 controls a memory cell 3 with 3 channels, which is supplied with pressure by the regulator 4 and with depression by the depression generator 9. This cell delivers a signal usable at 15, that is to say either pressure, or depression. Furthermore, the timer 3 controls a pressure indicator 11, of the optical index type, having a response time of approximately 10 ms. On the leakage pipe 16, a cell 13 can be provided, controlled by the timer 3, and which ensures that the leakage pipe is shut off for the entire duration of the timeout imposed in 3, from a shutter fugitive from the leak line 16.
  • the leakage pipe 16 is closed at 12 by a maneuverable control, that is to say for example by a manual control, by a pedal, by a proximity sensor or by any other equivalent means.
  • the outlet of the vacuum generator 9 is directly connected to the outlet 15 for use of the cell 8.
  • the depression prevents dripping.
  • the timer 3 is provided with a maneuverable tachometer to display the desired duration of the gas pressure signal intended for controlling the cell 8.
  • the amplifier relay 7 applies to timer 3 the output pressure of the filter 1.
  • Timer 3 transmits this pressure to the optical pressure indicator 11 and to cell 8 for the preset duration displayed by the tachometer.
  • the cell 8 then switches to the active position and delivers at the outlet 15 the pressure established by the regulator 4 to control the application of the product.
  • the cell 8 switches back to its rest position, applying again to the output 15 the vacuum coming from the generator 9.
  • the device is brought back to the initial state and can again be put into operation.
  • the response time of the entire device is calculated in milliseconds; it is therefore of the same order of magnitude as that of a solenoid valve.
  • the device object of the invention is intended to deliver pulses of air or neutral gas such as nitrogen for example.
  • pulses of duration adjustable by the timer 3 act on a product dispenser constituted by syringes of various capacities, from 1 to 35 cm 3 for example, by cartridges from 75 to 360 cm 3 for example, or by tanks in metal or plastic.
  • the pulses can also be used for controlling pneumatic product valves, of the valve or diaphragm type for example. They can also, more generally, control any pneumatic system for a predetermined and repetitive time.
  • the device according to the invention has the qualities of existing devices using electronics. Since it does not use electric current, this device can be used in explosive atmospheres safely.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Vacuum Packaging (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Magnetically Actuated Valves (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Organic Insulating Materials (AREA)
EP82401726A 1981-09-23 1982-09-23 Dispositif entièrement pneumatique, générateur d'impulsions temporisées de gaz Expired EP0077699B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401726T ATE14917T1 (de) 1981-09-23 1982-09-23 Voellig pneumatischer generator fuer zeitgesteuerte gasimpulse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8117919A FR2513327A1 (fr) 1981-09-23 1981-09-23 Dispositif entierement pneumatique, generateur d'impulsions temporisees de gaz
FR8117919 1981-09-23

Publications (2)

Publication Number Publication Date
EP0077699A1 EP0077699A1 (fr) 1983-04-27
EP0077699B1 true EP0077699B1 (fr) 1985-08-14

Family

ID=9262387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401726A Expired EP0077699B1 (fr) 1981-09-23 1982-09-23 Dispositif entièrement pneumatique, générateur d'impulsions temporisées de gaz

Country Status (4)

Country Link
EP (1) EP0077699B1 (pt)
AT (1) ATE14917T1 (pt)
DE (1) DE3265436D1 (pt)
FR (1) FR2513327A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528129A1 (fr) * 1982-06-04 1983-12-09 Cognard Pierre Dispositif electro-pneumatique, generateur d'impulsions temporisees de gaz
CN114893138B (zh) * 2022-05-10 2023-11-17 佰思迪(天津)科技有限公司 一种脉冲式负压吸附设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1433617A (fr) * 1965-02-26 1966-04-01 Inst Werkzeugmaschinen Dispositif pour la commande sans contact pour la production d'impulsions pneumatiques
DE2504698A1 (de) * 1975-02-05 1976-08-19 Kuhnke Gmbh Kg H Vorrichtung zur erzeugung von druckluftstoessen in form von kurzimpulsen

Also Published As

Publication number Publication date
ATE14917T1 (de) 1985-08-15
FR2513327B1 (pt) 1985-04-19
FR2513327A1 (fr) 1983-03-25
EP0077699A1 (fr) 1983-04-27
DE3265436D1 (en) 1985-09-19

Similar Documents

Publication Publication Date Title
EP3280948B1 (fr) Robinet et réservoir de fluide sous pression
EP0124405B1 (fr) Dispositif pour fournir à une conduite un fluide sous une pression déterminée en provenance de deux récipients
EP0656495A1 (fr) Distributeur de liquide fonctionnant avec des électrovannes
AU4212097A (en) Method, device and installation for dispensing dosed amounts of liquid
FR2630673A1 (fr) Dispositif et procede pour detecter le debit massique et la vitesse de grenaillage
EP0077699B1 (fr) Dispositif entièrement pneumatique, générateur d'impulsions temporisées de gaz
FR2561931A1 (fr) Extincteur d'incendie portable pouvant etre actionne automatiquement et manuellement
EP0109467B1 (fr) Robinet à fonctionnement semi-automatique permettant de délivrer un volume prédéterminé d'un fluide sous pression, notamment robinet de chasse
EP0278814A1 (fr) Ensemble de régulation à dosage de carburant amélioré notamment pour turbomachines
EP1866098B1 (fr) Installation de projection electrostatique de produit de revetement et procede de commande de l'alimentation en courant de moyens elevateurs de tension dans une telle installation
FR2527195A1 (fr) Perfectionnements aux dispositifs de distribution de carburant
EP0519794A1 (fr) Dispositif de commande d'emplissage, et d'arrêt automatique à un niveau déterminé, de réservoirs de gaz de pétrole liquéfié (GPL)
WO1980002874A1 (fr) Dispositif de mesure et de controle de debits gazeux
WO2005061244A1 (fr) Instrument d'ecriture a jet de liquide
EP0465336B1 (fr) Appareil doseur de produits liquides pour engins agricoles
FR2655390A1 (fr) Dispositif pneumatique, generateur d'impulsion temporisees de gaz.
FR3041427A1 (fr) Dispositif portatif pour le dosage volumetrique d'un fluide et utilisation d'un tel dispositif
EP0100249B1 (fr) Dispositif électro-pneumatique, générateur d'impulsions temporisées de gaz
EP0044263B1 (fr) Convertisseur courant-débit à réponse rapide, notamment pour l'asservissement de dispositifs de manoeuvre ou de distribution
WO2013068695A1 (fr) Dispositif de détection de gaz et de vapeurs compact et à charge de gaz test intégrée
FR2472134A2 (fr) Separateur de gaz pour dispositif de distribution de liquide
FR2602067A1 (fr) Dispositif de commande pour la fermeture en deux temps d'une vanne.
EP4292717A1 (fr) Installation d'application de produit de revêtement et procédé de commande d'une telle installation
WO1982000197A1 (en) Device for measuring and controlling gas flow rates
FR2494350A1 (fr) Dispositif de securite pour le raccordement de deux circuits hydrauliques sous pression

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

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19831021

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19850814

Ref country code: AT

Effective date: 19850814

REF Corresponds to:

Ref document number: 14917

Country of ref document: AT

Date of ref document: 19850815

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19850830

REF Corresponds to:

Ref document number: 3265436

Country of ref document: DE

Date of ref document: 19850919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19850930

Ref country code: BE

Effective date: 19850930

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
BERE Be: lapsed

Owner name: COGNARD PIERRE

Effective date: 19850923

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
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19880923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19880930

Ref country code: CH

Effective date: 19880930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: CH

Ref legal event code: AUV

Free format text: LE BREVET CI-DESSUS EST TOMBE EN DECHEANCE FAUTE DE PAIEMENT, DE LA 7E ANNUITE.

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890601