DE1708117A1 - Reducing valve for respiratory equipment - Google Patents

Reducing valve for respiratory equipment

Info

Publication number
DE1708117A1
DE1708117A1 DE19671708117 DE1708117A DE1708117A1 DE 1708117 A1 DE1708117 A1 DE 1708117A1 DE 19671708117 DE19671708117 DE 19671708117 DE 1708117 A DE1708117 A DE 1708117A DE 1708117 A1 DE1708117 A1 DE 1708117A1
Authority
DE
Germany
Prior art keywords
valve
opening
pressure gas
piston
valve body
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
DE19671708117
Other languages
German (de)
Other versions
DE1708117B2 (en
DE1708117C3 (en
Inventor
Leszek Suchy
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.)
ZAKLADY MEKH PRECYZYJNEJ
Original Assignee
ZAKLADY MEKH PRECYZYJNEJ
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
Priority claimed from PL117924A external-priority patent/PL55641B1/pl
Application filed by ZAKLADY MEKH PRECYZYJNEJ filed Critical ZAKLADY MEKH PRECYZYJNEJ
Publication of DE1708117A1 publication Critical patent/DE1708117A1/en
Publication of DE1708117B2 publication Critical patent/DE1708117B2/en
Application granted granted Critical
Publication of DE1708117C3 publication Critical patent/DE1708117C3/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/0402—Control of fluid pressure without auxiliary power with two or more controllers mounted in series
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7795—Multi-stage
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7801—Balanced valve
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7809—Reactor surface separated by apertured partition
    • Y10T137/781—In valve stem
    • Y10T137/7811—Also through reactor surface

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Control Of Fluid Pressure (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Description

DR. EULE DR. BERG DIPL.-ING. STAPFDR. EULE DR. BERG DIPL.-ING. STAPF PATENTANWÄLTE 17ΠΡ117PATENT LAWYERS 17-117

8 MÜNCHEN 2. HILBLESTRASSE 2O I / U O I I /8 MUNICH 2. HILBLESTRASSE 2O I / U O I I /

Dr. Eule Dr. Berg Oipl.-lng. Stapf, 8 München 2, Hilblestro6e 20 · Dr. Owl dr Berg Oipl.-lng. Stapf, 8 Munich 2, Hilblestro6e 20

UnseOur

r Zeichen Vl/Kr 16849 Dah,» 8. DΘΖ. 1967 r characters Vl / Kr 16849 Dah, » 8. DΘΖ. 1967

Anwalts-Akte Nr. 16849 Attorney file no . 16849

Zak^ady Mechanik! PrecyzyjnejZak ^ ady mechanics! Precyzyjnej

Przedsiebioratwo Panstowe Gdansk - Oliwa, Beniowskiego 5 - PolenPrzedsiebioratwo Panstowe Gdansk - Oliwa, Beniowskiego 5 - Poland

Reduzierventil für AtmungsgeräteReducing valve for breathing devices

Die Erfindung betrifft ein Reduzierventil der ersten Stufe eines zweistufigen Reduziersystems für Atmungsgeräte, wel-The invention relates to a reducing valve of the first stage of a two-stage reducing system for breathing apparatus, wel-

1 0 9 8 1 7 / Ü A 8 11 0 9 8 1 7 / Ü A 8 1

ORIGINAL INSPECTEDORIGINAL INSPECTED

17001171700117

ches die Aufrechterhaltung eines konstanten Mitteldrucks sichert, und zwar unabhängig von dem in der Luftflasche herrschenden Druck.ches ensures that a constant mean pressure is maintained, regardless of that in the air cylinder prevailing pressure.

Es sind Atmungsgeräte bekannt, in welchen die in der Flasche befindliche komprimierte Luft mittels zweier Reduzierventile auf den Atmungsdruck reduziert wird. Das erste Ventil reduziert den in der Luftflasche herrschenden Hochdruck auf einen Mitteldruck, der meistens einen Wert von 8 atü nicht überschreitet. Das zweite Ventil dagegen, * welches mit der Lunge gesteuert ist, reduziert diesen auf den Atmungsdruck.Breathing devices are known in which the compressed air in the bottle is reduced to the breathing pressure by means of two reducing valves. The first valve reduces the high pressure prevailing in the air bottle to a medium pressure which usually does not exceed a value of 8 atmospheres. The second valve, on the other hand, * which is controlled by the lungs, reduces this to the breathing pressure.

Die Reduzierventile der ersten Stufe der bekannten Geräte weisen den grundsätzlichen Nachteil auf, daß sie die Konstantheit des Mitteldrucks nicht sichern, welcher mit dem Abfall des Drucks in der Luftflasche zunimmt.The reducing valves of the first stage of the known devices have the fundamental disadvantage that they Do not ensure constant mean pressure, which increases as the pressure in the air cylinder drops.

Mit einer Vereinfachung kann es vorausgesetzt werden, daß der Zuwachs des Mitteldrucks nur von der Fläche der Drosselöffnung abhängt. Bin höherer Druck der Luft aus der Flasche bewirkt eine kräftigere Steigerung des Mitteldruoks. Diese Änderungen bewirken veränderliche Atmungswiderstände und beeinflussen die Atmungscharakteristik des Gerätes nachteilig» Durch Verwendung einer kleinenWith a simplification it can be assumed that the increase in the mean pressure depends only on the area of the Throttle opening depends. A higher pressure of the air from the bottle causes a stronger increase in the mean pressure. These changes cause variable breathing resistance and influence the breathing characteristics of the device disadvantageous »By using a small

_ 3 _ 109817/0481 _ 3 _ 109817/0481

ORIGINAL INSPECTEDORIGINAL INSPECTED

Fläche bei der Drosselöffnung werden diese Nachteile in gewissem Grade beseitigt, doch wird dadurch bei höherem Bedarf an Luft eine erhebliche Drosselung der Luftdurchströmung verursacht.Area at the throttle opening eliminates these disadvantages to some extent, but increases them to a greater extent The need for air causes a considerable throttling of the air flow.

Es sind auch Reduzierventile bekannt, welche die Aufrecht erhaltung eines konstanten Mitteldrucks sichern, jedoch weisen sie eine überaus komplizierte und schwer herstellbare Konstruktion auf.There are also reducing valves known, which ensure the maintenance of a constant mean pressure, however, they have an extremely complicated and difficult to manufacture structure.

Das erfindungsgemäß· Reduzierventil ist in seinem Aufbau einfach und erlaubt ee, eine große Drosselöffnung vorzusehen, wodurch ein beliebiger Luftbedarf gedeckt werden kann, und sie sichert zugleich einen konstanten Mitteldruok, welcher von dem in der Luftflasche herrschenden Druck unabhängig ist, weil der Ventilteller durch die Luft entlastet wird, welohe durch die öffnung in dem Ventilteller in einen Raum strömt, welcher durch einen gegenüber dem Ventilteller bewegbaren Kolben verschlossen ist, wobei die Fläche dieses Kolbens gleich der Fläche der Drosselöffnung ist. Dadurch befindet sich der Ventilteller bei allen Drücken der Luftflasche stets im Gleichgewichtszustand.The reducing valve according to the invention is in its construction simple and allows ee to provide a large throttle opening, whereby any air requirement can be met can, and at the same time it ensures a constant mean pressure, which is independent of the pressure prevailing in the air bottle, because the valve disc is through the Air is relieved, which flows through the opening in the valve disk into a space, which through an opposite the piston movable piston is closed, the area of this piston being equal to the area the throttle opening is. This means that the valve disk is always in the position when the air bottle is pressed State of equilibrium.

Das Wesen der Erfindung besteht darin, mittels eines VentilsThe essence of the invention is by means of a valve

- 4 109817/0481 - 4 109817/0481

einfacher Konstruktion, die einseitig auf den Ventilteller wirkende Kraft zu kompensieren, welche die Steigerung des reduzierten Mitteldrucks bei abfallendem Druck in der luftflasche verursacht.simple construction to compensate for the force acting on one side of the valve disc, which increases the reduced mean pressure caused by falling pressure in the air cylinder.

Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. In der zugehörigen Zeichnung zeigtίThe invention is to be explained in more detail below using an exemplary embodiment. In the accompanying drawing showsί

Pig. 1 einen senkrechten Längsschnitt durch ein Reduzierventil gemäß Erfindung.Pig. 1 shows a vertical longitudinal section through a reducing valve according to the invention.

Das Reduzierventil besteht aus einem Ventilgehäuse 1, einer das Ventil an der Flasche befestigenden Mutter 3, einem Ventilsitz 4 mit einer Drosselöffnung, einer Kammer für einen Ventilkörper 7 mit einem Kolben 11 und einem zum Verschluß des Ventilsitzes geeigneten stumpfen Ende 6, einer das Ventil öffnenden Feder 10, einem Gehäusedeckel 12, einem kleinen Kolben 16 und aus den die Räume 13, 21 und die Kammer 5 abschließenden Dichtungen 15, 17 imd 19. In dem Deckel 12 befinden sich öffnungen 8, wodurch im Raum 9 Umgebungsdruck herrscht.The reducing valve consists of a valve housing 1, a nut 3 fastening the valve to the bottle, a valve seat 4 with a throttle opening, a chamber for a valve body 7 with a piston 11 and a butt suitable for closing the valve seat End 6, a valve opening spring 10, a housing cover 12, a small piston 16 and from the seals that seal off the spaces 13, 21 and the chamber 5 15, 17 and 19. In the cover 12 there are openings 8, whereby there is ambient pressure in room 9.

Bei dem oben beschriebenen Ausführungsbeispiel kann anstatt des Kolbens 11 eine Membran verwendet werden, welche mit dem Kolbenschaft 7 und dem Gehäusedeckel 12In the embodiment described above, a membrane can be used instead of the piston 11, which with the piston skirt 7 and the housing cover 12

- 5 109817/0481 - 5 109817/0481

verbunden ist.connected is.

Das oben beschriebene Ausführungsbeispiel kann in zum Tauchen dienenden oder in die Umgebungsgase von dem menschlichen Atmungesystem trennenden Geräten verwendet werden.The embodiment described above can be used in Devices used for diving or for separating into the ambient gases from the human respiratory system will.

Die Wirkungsweise des erfindungsgemäßen Ventils ist wie folgt:The mode of operation of the valve according to the invention is as follows:

Vor Zuführung von komprimierter Luft aus der Luftflasche hält die auf den Kolben 11 ausgeübte Druckkraft der Feder 10 den Ventilteller 6 in seiner "offen"-Lage. Fach dem öffnen des Flaschenverschlusses, etwa eines Ventils, strömt Luft aus der Flasche durch die Leitung 2 und die Kammer 5 zu der Leitung 20, welche die Luft zu dem Atmung sautomaten zuführt. Die Luft gelangt auch durch die Öffnung 18 und den Schlitz 14 zu dem Raum 13 oberhalb des Kolbens 11.Before compressed air is supplied from the air bottle, the compressive force of the spring exerted on the piston 11 holds 10 the valve disk 6 in its "open" position. subject the opening of the bottle closure, such as a valve, air flows out of the bottle through the line 2 and the Chamber 5 to line 20 which supplies the air to the breathing machine. The air also passes through the Opening 18 and the slot 14 to the space 13 above the piston 11.

Wenn ein entsprechender Wert des reduzierten Drucks erreicht wird, überwindet der auf den Kolben 11 ausgeübte Druck den Federwiderstand 10 und bewirkt eine Verschiebung des Kolbens und somit das Schliessen des Ventilsitzes 4. Gleichzeitig strömt durch -die Öffnung 22 LuftWhen a corresponding value of the reduced pressure is reached, the pressure exerted on the piston 11 overcomes Pressure the spring resistance 10 and causes a displacement of the piston and thus the closure of the valve seat 4. At the same time, air flows through the opening 22

- 6 1098 17/0481 - 6 1098 17/0481

mam Q «■ mam Q «■

in den, durch den sich gegen den Gehäusedeckel 12 stützenden kleinen Kolben 16 abgeschlossenen Raum 21 hinein, wodurch eine feststehende Lage des kiel:, λ Kolbens 16 gegenüber dem Ventilsitz 4 erzielt wird.into the space 21 closed off by the small piston 16 supported against the housing cover 12 into it, creating a fixed position of the keel :, λ piston 16 with respect to the valve seat 4 is achieved.

- 7 Patentansprüche - 7 claims

1098 17/04811098 17/0481

Claims (3)

PatentansprücheClaims 1. Reduzierventil für Atmungsgeräte, bei welchem die Einströmöffnung für Hochdruckgas mittels eines von der öffnung abhebbaren Ventilkörpers verschließbar ist, welcher mittels einer Steuermembran als eines Steuerkolbens, die bzw. der mit dem Niederdruck des Ventils beaufschlagt ist, gegen die öffnung hingedrückt wird,1. Reducing valve for breathing apparatus, in which the inflow opening can be closed for high-pressure gas by means of a valve body that can be lifted off the opening, which by means of a control membrane as a control piston, which or which with the low pressure of the valve is acted upon, is pressed against the opening, dadurch gekennzeichnet, daß der Ventilkörper (7) einen fcharacterized in that the valve body (7) has a f Hohlraum aufweist, der auf seiner der Eintrittsöffnung (4) ( für Hochdruckgas abgewandten Seite von einem kleinen Kolben (16) abgeschlossen ist, der außerhalb des Ventilkörpers (7) abgestützt ist, und daß der Hohlraum eine öffnung (22) deren Querschnitt kleiner als der des kleinen Kolbens (16) iat, zur die Einströmöffnung (4) für Hochdruckgas verschließenden Oberfläche des Ventilskörpers (7) hin aufweist.Has cavity which is closed on its side facing away from the inlet opening (4) ( for high pressure gas) by a small piston (16) which is supported outside the valve body (7), and that the cavity has an opening (22) whose cross section is smaller than that of the small piston (16) towards the surface of the valve body (7) which closes the inflow opening (4) for high pressure gas. 2. Reduzierventil nach Anspruch 1, dadurch gekennzeichnet, daß der Ventilkörper (7) ein im Ventilgehäuse geführter hohler Schaft ist, in welchen von der der Einströmöffnung (4) für Hochdruckgas abgewandten Seite her der am Ventilgehäuse abgestützte kleine Kolben (16) ragt.2. Reducing valve according to claim 1, characterized in that the valve body (7) is guided in the valve housing is hollow shaft, in which from the side facing away from the inflow opening (4) for high pressure gas the the small piston (16) supported on the valve housing protrudes. 109817/0481109817/0481 17031171703117 3. Reduzierventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Querschnittfläche des kleinen Kolbens (16) ebenso groß wie der Querschnitt der Eintrittsöffnung (4) für Hochdruckgas ist. 3. Reducing valve according to claim 1 or 2, characterized in that the cross-sectional area of the small piston (16) is just as large as the cross section of the inlet opening (4) for high pressure gas. 109817/0431109817/0431 COPYCOPY
DE1708117A 1966-12-12 1967-12-08 Pressure reducer for breathing apparatus Expired DE1708117C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL117924A PL55641B1 (en) 1966-12-12

Publications (3)

Publication Number Publication Date
DE1708117A1 true DE1708117A1 (en) 1971-04-22
DE1708117B2 DE1708117B2 (en) 1973-06-28
DE1708117C3 DE1708117C3 (en) 1974-01-31

Family

ID=19949574

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1708117A Expired DE1708117C3 (en) 1966-12-12 1967-12-08 Pressure reducer for breathing apparatus

Country Status (5)

Country Link
US (1) US3522818A (en)
DE (1) DE1708117C3 (en)
FR (1) FR1548799A (en)
GB (1) GB1204356A (en)
SE (1) SE330130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219007A1 (en) * 2002-04-27 2003-11-13 Draeger Aerospace Gmbh Reducing valve for high-pressure gas has pressure spring pushing against piston opposing pressure of gas and allowing controlled escape through valve

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762604A (en) * 1971-05-10 1973-10-02 D Shonerd Survival support device
US3866622A (en) * 1972-03-18 1975-02-18 Kawasaki Heavy Ind Ltd Open circuit breathing apparatus
CH608718A5 (en) * 1975-01-20 1979-01-31 Scubapro Eu
DE2544001A1 (en) * 1975-10-02 1977-04-07 Schneider Co Optische Werke PRESSURE VALVE
US4146275A (en) * 1977-10-11 1979-03-27 Elliott Robert H Residual pressure relief valve for brakes
US4243031A (en) * 1978-12-18 1981-01-06 Abbott Laboratories Intravenous pump filter protector
EP0112765A1 (en) * 1982-12-20 1984-07-04 Litton Systems, Inc. Combined pressure-reducing regulator and shutt-off valve
US4652216A (en) * 1984-05-21 1987-03-24 Allied Corporation Compressor inlet control device
GB2182421B (en) * 1985-09-11 1989-09-20 Actrol Ind Pty Ltd Pressure control valve
AU581536B2 (en) * 1985-09-11 1989-02-23 Actrol Industries Pty. Ltd. Pressure control valve
US5095939A (en) * 1991-06-13 1992-03-17 Allied-Signal Inc. Redundant pressurizing valve
GB2269441B (en) * 1992-08-05 1996-01-24 Sabre Safety Ltd A gas flow control regulator
AU4753096A (en) * 1996-01-11 1996-07-10 Harsco Corporation Eductive pressure regulator
US5662100A (en) * 1996-01-11 1997-09-02 Harsco Corporation Eductive pressure regulator
WO2003023263A1 (en) * 2001-09-07 2003-03-20 Gebr. Gloor Ag Reducing valve for compressed gas bottles
JP3594925B2 (en) * 2001-11-13 2004-12-02 株式会社カワサキプレシジョンマシナリ Pressure reducing valve
WO2003093708A1 (en) 2002-05-06 2003-11-13 Walter George Morrison Pressure control valve
US7712482B2 (en) 2007-06-07 2010-05-11 Kabushiki Kaisha Kawasaki Precision Machinery Pressure-reducing valve
CN107854784A (en) * 2017-01-20 2018-03-30 湖北航天化学技术研究所 A kind of oxygen breathing apparatus oxygen cylinder pile-up valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219007A1 (en) * 2002-04-27 2003-11-13 Draeger Aerospace Gmbh Reducing valve for high-pressure gas has pressure spring pushing against piston opposing pressure of gas and allowing controlled escape through valve
DE10219007B4 (en) * 2002-04-27 2004-07-29 DRäGER AEROSPACE GMBH Reduction valve for compressed gas
US7121298B2 (en) 2002-04-27 2006-10-17 DRäGER AEROSPACE GMBH Reducer valve for pressurized gas

Also Published As

Publication number Publication date
DE1708117B2 (en) 1973-06-28
US3522818A (en) 1970-08-04
DE1708117C3 (en) 1974-01-31
SE330130B (en) 1970-11-02
GB1204356A (en) 1970-09-09
FR1548799A (en) 1968-12-06

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C3 Grant after two publication steps (3rd publication)