GB865084A - Altitude compensated continuous flow oxygen regulator - Google Patents

Altitude compensated continuous flow oxygen regulator

Info

Publication number
GB865084A
GB865084A GB19479/59A GB1947959A GB865084A GB 865084 A GB865084 A GB 865084A GB 19479/59 A GB19479/59 A GB 19479/59A GB 1947959 A GB1947959 A GB 1947959A GB 865084 A GB865084 A GB 865084A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
stage
diaphragm
secondary stage
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
GB19479/59A
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.)
Aro Equipment Corp
Original Assignee
Aro Equipment Corp
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 Aro Equipment Corp filed Critical Aro Equipment Corp
Publication of GB865084A publication Critical patent/GB865084A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/14—Respiratory apparatus for high-altitude aircraft
    • 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
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/0616—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow
    • G05D16/0619—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow acting directly on the obturator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

865,084. Respiratory appliances. ARO EQUIPMENT CORPORATION. June 8, 1959 [June 9, 1958], No. 19479/59. Class 81 (2) An altitude compensated oxygen regulator has a secondary pressure reducing stage comprising a plurality of aneroid-operated valves disposed to function in parallel and operate in sequence. The secondary pressure reducing stage may comprise a plurality of sections in parallel, each section comprising a plurality of aneroid-operated valves disposed in parallel and operating in sequence. In an oxygen regulator for use in an aircraft, oxygen at high pressure, e.g. 2000 p.s.i., passes through a first stage reducing valve 38 into a chamber B, the valve being controlled through a lever 46 by a diaphragm D3 exposed on one side to the pressure in the chamber B and on the other side via a conduit 92 to the pressure in an outlet chamber C of the device. The diaphragm D3 is urged by an adjustable spring in a direction tending to close the valve 38. Two secondary stage reducing valves 54, 54a arranged in parallel connect the chamber B with the outlet chamber C. Each secondary stage valve is controlled through a plunger 74, 76 and a diaphragm D1, D2 by an aneroid capsule A1, A2 disposed in a housing connected to the ambient atmosphere through a vent 84. The plungers bear against their respective diaphragms which are exposed to pressure in the outlet chamber C. The ratio of the effective areas of the aneroid capsule and the diaphragm associated with each secondary stage valve is such that as the ambient pressure falls due to an increase in altitude, a first secondary stage valve 54 only will open at lower altitudes, the second secondary stage valve 54a only opening at higher altitudes at which the first secondary stage valve will be closed by additional pressure acting on its controlling diaphragm. The first stage pressure reducing parts are contained in a housing mounted on a base 16 and are connected by conduits formed in the base with one section or several having sections arranged in parallel, each section containing a pair of secondary stage reducing valves and their associated parts. One or more secondary stage sections, each having an outlet 110 from its outlet chamber C for the connection of respirators, are used, dependent on the number of passengers to be supplied with oxygen. The aneroid housing vent 84 may be connected to a vacuum line for testing the operation of the device.
GB19479/59A 1958-06-09 1959-06-08 Altitude compensated continuous flow oxygen regulator Expired GB865084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US865084XA 1958-06-09 1958-06-09

Publications (1)

Publication Number Publication Date
GB865084A true GB865084A (en) 1961-04-12

Family

ID=22199034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19479/59A Expired GB865084A (en) 1958-06-09 1959-06-08 Altitude compensated continuous flow oxygen regulator

Country Status (1)

Country Link
GB (1) GB865084A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856507A (en) * 1987-04-15 1989-08-15 Intertechnique Two main piloted valves demand regulator for aviators
EP0394076A1 (en) * 1989-04-21 1990-10-24 Societe De Fabrication D'instruments De Mesure (S.F.I.M.) Altitude dependant gaseous oxygen flow regulating device for supplying airplane passenger breathing masks
US5357949A (en) * 1991-12-13 1994-10-25 Eros G.I.E. Breathing protection installation for aircraft passengers
FR2858560A1 (en) * 2003-08-04 2005-02-11 Air Liquide Oxygen supplying circuit for aircraft passenger, has oxygen supply line connected to pressurized oxygen source, and pressure regulator operating in response to control signal provided by electronic control unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856507A (en) * 1987-04-15 1989-08-15 Intertechnique Two main piloted valves demand regulator for aviators
EP0394076A1 (en) * 1989-04-21 1990-10-24 Societe De Fabrication D'instruments De Mesure (S.F.I.M.) Altitude dependant gaseous oxygen flow regulating device for supplying airplane passenger breathing masks
US5357949A (en) * 1991-12-13 1994-10-25 Eros G.I.E. Breathing protection installation for aircraft passengers
FR2858560A1 (en) * 2003-08-04 2005-02-11 Air Liquide Oxygen supplying circuit for aircraft passenger, has oxygen supply line connected to pressurized oxygen source, and pressure regulator operating in response to control signal provided by electronic control unit
WO2005016750A3 (en) * 2003-08-04 2006-07-27 Air Liquide Circuit for supplying oxygen to aircraft passengers
US9272786B2 (en) 2003-08-04 2016-03-01 L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude Circuit for supplying oxygen to aircraft passengers

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