FR2407722A1 - PULMO-AUTOMATIC VALVE SYSTEM FOR RESPIRATORY DEVICES - Google Patents

PULMO-AUTOMATIC VALVE SYSTEM FOR RESPIRATORY DEVICES

Info

Publication number
FR2407722A1
FR2407722A1 FR7830421A FR7830421A FR2407722A1 FR 2407722 A1 FR2407722 A1 FR 2407722A1 FR 7830421 A FR7830421 A FR 7830421A FR 7830421 A FR7830421 A FR 7830421A FR 2407722 A1 FR2407722 A1 FR 2407722A1
Authority
FR
France
Prior art keywords
pressure
valve system
pulmo
inspiration
membrane
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.)
Withdrawn
Application number
FR7830421A
Other languages
French (fr)
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of FR2407722A1 publication Critical patent/FR2407722A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • A62B9/022—Breathing demand regulators
    • A62B9/027—Breathing demand regulators pilot operated, i.e. controlled by valve means sensitive to a reduced downstream pressure

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

CE SYSTEME DE SOUPAPE COMPREND, COMME LES SYSTEMES CONNUS, UNE SOUPAPE PRINCIPALE AVEC UN PISTON 5, TRAVERSE PAR UN ALESAGE AXIAL 19 FAISANT COMMUNIQUER UNE CHAMBRE DE FERMETURE 8 AVEC UNE RACCORD D'ARRIVEE 4 DU GAZ RESPIRATOIRE, ET UNE SOUPAPE AUXILIAIRE COMMANDEE PAR L'ACTION SUR UNE MEMBRANE DE LA PRESSION QUI REGNE DANS LE RACCORD D'INSPIRATION13. IL EST CARACTERISE EN CE QUE LA SOUPAPE AUXILIAIRE EST CONSTITUEE PAR UN CORPS 9 FORMANT UNE PAROI DE LA CHAMBRE DE FERMETURE MONTE DE FACON ETANCHE ET TRAVERSE PAR UN ALESAGE 10 DEBOUCHANT DANS UNE CHAMBRE DE DECHARGE 12 EN COMMUNICATION AVEC L'ATMOSPHERE (CANAL 15) ET PAR LA MEMBRANE 11, QUI ISOLE DE FACON ETANCHE LA CHAMBRE DE DECHARGE DU RACCORD D'INSPIRATION ET FERME L'ORIFICE DE L'ALESAGE DU CORPS SOUS L'EFFET DE LA PRESSION. IL EN RESULTE, OUTRE UNE DIMINUTION DE LA PRESSION NECESSAIRE A L'ACTIONNEMENT, UNE CONSTRUCTION PLUS SIMPLE ET PLUS COMPACTE DU SYSTEME.THIS VALVE SYSTEM INCLUDES, LIKE THE KNOWN SYSTEMS, A MAIN VALVE WITH A PISTON 5, THROUGH AN AXIAL BORE 19 MAKING A CLOSING CHAMBER 8 COMMUNICATE WITH A RESPIRATORY GAS INLET 4 CONNECTION, AND AN AUXILIARY VALVE CONTROLLED BY L 'ACTION ON A MEMBRANE OF THE PRESSURE THAT REIGNS IN THE INSPIRATION FITTING 13. IT IS CHARACTERIZED IN THAT THE AUXILIARY VALVE IS CONSTITUTED BY A BODY 9 FORMING A WALL OF THE CLOSING CHAMBER MOUNTED WATERTIGHT AND THROUGH A BORE 10 OPENING IN A DISCHARGE CHAMBER 12 IN COMMUNICATION WITH THE ATMOSPHERE (CHANNEL 15) AND THROUGH MEMBRANE 11, WHICH SELECTS THE DISCHARGE CHAMBER FROM THE INSPIRATION FITTING AND CLOSES THE BODY BALE ORIFICE UNDER THE EFFECT OF PRESSURE. THIS RESULTS, IN ADDITION TO A REDUCTION OF THE PRESSURE NECESSARY FOR ACTION, A SIMPLER AND COMPACT CONSTRUCTION OF THE SYSTEM.

FR7830421A 1977-11-08 1978-10-19 PULMO-AUTOMATIC VALVE SYSTEM FOR RESPIRATORY DEVICES Withdrawn FR2407722A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2749897A DE2749897C2 (en) 1977-11-08 1977-11-08 Lung-operated breathing gas valve for breathing apparatus

Publications (1)

Publication Number Publication Date
FR2407722A1 true FR2407722A1 (en) 1979-06-01

Family

ID=6023273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7830421A Withdrawn FR2407722A1 (en) 1977-11-08 1978-10-19 PULMO-AUTOMATIC VALVE SYSTEM FOR RESPIRATORY DEVICES

Country Status (9)

Country Link
AU (1) AU4140378A (en)
CH (1) CH634753A5 (en)
DE (1) DE2749897C2 (en)
FR (1) FR2407722A1 (en)
GB (1) GB2008805B (en)
NL (1) NL7810392A (en)
NO (1) NO144786C (en)
SE (1) SE7811489L (en)
ZA (1) ZA785889B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418788A1 (en) * 1994-05-24 1995-11-30 Interspiro Gmbh Breathing connection with regulator
CN112370674B (en) * 2020-11-05 2022-01-25 郝志勇 Positive pressure type air respirator for fire fighting

Also Published As

Publication number Publication date
NO144786B (en) 1981-08-03
SE7811489L (en) 1979-05-09
DE2749897B1 (en) 1979-01-18
DE2749897C2 (en) 1979-09-06
NL7810392A (en) 1979-05-10
NO144786C (en) 1981-11-11
NO783189L (en) 1979-05-09
GB2008805B (en) 1982-01-27
CH634753A5 (en) 1983-02-28
AU4140378A (en) 1979-05-17
ZA785889B (en) 1979-10-31
GB2008805A (en) 1979-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse