DE901134C - Control valve, especially for oxygen breathing apparatus and pressure reducing valves - Google Patents

Control valve, especially for oxygen breathing apparatus and pressure reducing valves

Info

Publication number
DE901134C
DE901134C DEA4955D DEA0004955D DE901134C DE 901134 C DE901134 C DE 901134C DE A4955 D DEA4955 D DE A4955D DE A0004955 D DEA0004955 D DE A0004955D DE 901134 C DE901134 C DE 901134C
Authority
DE
Germany
Prior art keywords
control valve
pressure reducing
breathing apparatus
reducing valves
oxygen breathing
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
DEA4955D
Other languages
German (de)
Inventor
Dr Phil Erwin Turowski
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.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft 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 Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DEA4955D priority Critical patent/DE901134C/en
Application granted granted Critical
Publication of DE901134C publication Critical patent/DE901134C/en
Expired 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Details Of Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Description

Es ist bereits vorgeschlagen worden, bei indirekt gesteuerten Ventilen, insbesondere in Sauerstoffatemschutzgeräten, einen .auf eine Düse wirkenden Verschlußkörper unter Vermeidung gleitender Reibung in Federn aufzuhängen. Derartige Steuerventile lassen sich mit äußerst kleinen Steuerkräften betätigen.It has already been proposed, in the case of indirectly controlled valves, especially in oxygen breathing apparatus, a closure body acting on a nozzle Suspend in springs avoiding sliding friction. Such control valves can be operated with extremely small control forces.

Es hat sich nun gezeigt, daß solche leicht beweglichen Verschlußkörper unter der Wirkung des aus der Düse strömenden Mediums in periodische Schwingungen geraten können, deren Ursache u. a. im Auftreten des sogenannten hydrodynamischen Paradoxons liegt.It has now been shown that such easily movable closure body under the action of the medium flowing out of the nozzle into periodic oscillations may come, the cause of which, inter alia. in the occurrence of the so-called hydrodynamic Paradox lies.

Gegenstand der Erfindung ist es; diese Schwingungen, die den exakten Verlauf des Regelvorganges empfindlich stören können, zu beseitigen. Das geschieht nach der Erfindung dadurch, daß auf den Verschlußkörper wirkende dämpfende Mittel vorgesehen sind. Dazu können in, aus dem Meßinstrumentenbau bekannter Weise pneumatische, magnetische oder auch durch mechanische Reibung wirkende Dämpfungen vorgesehen werden.The subject of the invention is; these vibrations that are the exact Can interfere with the course of the control process. This happens according to the invention in that damping means acting on the closure body are provided. For this purpose pneumatic, Magnetic damping or damping acting through mechanical friction can be provided.

Das in der Abbildung dargestellte Ausführungsbeispiel zeigt eine meßtechnisch wirkende Dämpfungsvorrichtung am Steuerkolben eines indirekt gesteuerten Ventils. Der Steuerkolben i ist in zwei in Abb. z in Draufsicht dargestellten Schneckenfedern 2 gelagert, die an dem auf das die Düse tragenden Gehäuse 3 geschraubten Teil q. befestigt sind. An einem der Arme 5 greift die Steuerkraft an; auf den anderen Arm wirkt eine am Teil ¢ befestigte, mit einer Gleitplatte 6 versehene Blattfeder 7. Die zur Überwindung dieser Reibung aufzuwendende Kraft ist, da die Reibung nur sehr klein zu sein braucht, bei dem Gesamtaufwand für die Steuerkraft zu vernachlässigen.The embodiment shown in the figure shows a measurement technique Acting damping device on the control piston of an indirectly controlled valve. The control piston i is in two helical springs shown in Fig. Z in plan view 2 mounted, the q on the part that is screwed onto the housing 3 carrying the nozzle. are attached. The control force acts on one of the arms 5; on the other arm a leaf spring 7 which is attached to the part and is provided with a sliding plate 6 acts. The force to be used to overcome this friction is because the friction is only very high needs to be small, neglecting the total effort for the tax force.

Claims (1)

PATENTANSPRÜCHE: i. Steuerventil mit einem leicht beweglichen, insbesondere in Federn aufgehängten Düsenverschlußkörper, insbesondere für Sauerstoffatemschutzgeräte und Druckminderventile, dadurch gekennzeichnet, daß auf den Verschlußkörper wirkende Dämpfungsmittel vorgesehen sind, die verhindern, daß der Verschlußkörper infolge der an der Düse auftretenden Strömungsvorgänge in Schwingungen gerät. z. Steuerventil nach Anspruch i, dadurch gekennzeichnet, daß eine pneumatisch wirkende Dämpfung vorgesehen ist. 3. Steuerventil nach Anspruch i, dadurch gekennzeichnet, daß eine magnetisch wirkende Dämpfung vorgesehen ist. q.. Steuerventil nach Anspruch i, dadurch gekennzeichnet, daß eine mechanisch wirkende Dämpfung vorgesehen ist.PATENT CLAIMS: i. Control valve with an easily movable, in particular Nozzle closure bodies suspended in springs, in particular for oxygen breathing apparatus and pressure reducing valves, characterized in that acting on the closure body Damping means are provided which prevent the closure body as a result the flow processes occurring at the nozzle start to vibrate. z. Control valve according to claim i, characterized in that a pneumatically acting damping is provided. 3. Control valve according to claim i, characterized in that a magnetically acting damping is provided. q .. Control valve according to claim i, characterized characterized in that a mechanically acting damping is provided.
DEA4955D 1943-06-13 1943-06-13 Control valve, especially for oxygen breathing apparatus and pressure reducing valves Expired DE901134C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA4955D DE901134C (en) 1943-06-13 1943-06-13 Control valve, especially for oxygen breathing apparatus and pressure reducing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA4955D DE901134C (en) 1943-06-13 1943-06-13 Control valve, especially for oxygen breathing apparatus and pressure reducing valves

Publications (1)

Publication Number Publication Date
DE901134C true DE901134C (en) 1954-01-07

Family

ID=6920579

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA4955D Expired DE901134C (en) 1943-06-13 1943-06-13 Control valve, especially for oxygen breathing apparatus and pressure reducing valves

Country Status (1)

Country Link
DE (1) DE901134C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100232B (en) * 1955-05-27 1961-02-23 Stephenson Corp Ventilator for the supply of breathing gases with two pressures that alternately determine the ventilation process
WO2004101073A2 (en) * 2003-05-16 2004-11-25 Helmet Integrated Systems Limited Expiratory valve unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1100232B (en) * 1955-05-27 1961-02-23 Stephenson Corp Ventilator for the supply of breathing gases with two pressures that alternately determine the ventilation process
WO2004101073A2 (en) * 2003-05-16 2004-11-25 Helmet Integrated Systems Limited Expiratory valve unit
WO2004101073A3 (en) * 2003-05-16 2005-03-24 Helmet Integrated Syst Ltd Expiratory valve unit
GB2417769A (en) * 2003-05-16 2006-03-08 Helmet Integrated Syst Ltd Expiratory valve unit

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