WO2005004991A3 - An oxygen supply system having a central flow control - Google Patents

An oxygen supply system having a central flow control Download PDF

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Publication number
WO2005004991A3
WO2005004991A3 PCT/US2004/013199 US2004013199W WO2005004991A3 WO 2005004991 A3 WO2005004991 A3 WO 2005004991A3 US 2004013199 W US2004013199 W US 2004013199W WO 2005004991 A3 WO2005004991 A3 WO 2005004991A3
Authority
WO
WIPO (PCT)
Prior art keywords
oxygen
rox
flow
unit
diaphragm
Prior art date
Application number
PCT/US2004/013199
Other languages
French (fr)
Other versions
WO2005004991A2 (en
Inventor
James Talty
Original Assignee
Carleton Technologies Inc
James Talty
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 Carleton Technologies Inc, James Talty filed Critical Carleton Technologies Inc
Publication of WO2005004991A2 publication Critical patent/WO2005004991A2/en
Publication of WO2005004991A3 publication Critical patent/WO2005004991A3/en

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
    • 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
    • Y10T137/1842—Ambient condition change responsive
    • Y10T137/1939—Atmospheric
    • Y10T137/2012—Pressure
    • 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
    • Y10T137/7734—Fluid opened valve requiring reset

Abstract

The present invention is a Regulator-Oxygen (ROX) Unit for regulating oxygen flow in a multiple user emergency oxygen distribution system in passenger aircraft. Upon activation, the ROX unit initially allows unregulated flow of oxygen to surge into the distribution system to thereby purge the ambient air out of the system. After a sufficient pressure is achieved in the distribution system, the ROX unit regulates the flow mechanically with a diaphragm engaging a regulator valve. The pressure of the oxygen under the diaphragm causes the regulator valve to reduce the flow of the oxygen through the ROX unit. The ROX unit accounts for changes in altitude by communicating the inlet pressure to the chamber above the diaphragm. A bleed exit allows the oxygen to escape to the ambient air. One or more aneroid valves in fluid communication with the bleed exit adjust the amount of oxygen allowed to exit through the bleed exit such that less oxygen is allowed to escape for an increase in altitude. Thus the pressure above the diaphragm increases to thereby allow more oxygen to flow through the regulator valve.
PCT/US2004/013199 2003-05-02 2004-04-30 An oxygen supply system having a central flow control WO2005004991A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/428,640 2003-05-02
US10/428,640 US7341072B2 (en) 2003-05-02 2003-05-02 Oxygen supply system having a central flow control unit

Publications (2)

Publication Number Publication Date
WO2005004991A2 WO2005004991A2 (en) 2005-01-20
WO2005004991A3 true WO2005004991A3 (en) 2007-10-18

Family

ID=33310454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/013199 WO2005004991A2 (en) 2003-05-02 2004-04-30 An oxygen supply system having a central flow control

Country Status (2)

Country Link
US (2) US7341072B2 (en)
WO (1) WO2005004991A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7341072B2 (en) * 2003-05-02 2008-03-11 Carleton Technologies, Inc. Oxygen supply system having a central flow control unit
US7604019B2 (en) * 2005-07-22 2009-10-20 B/E Intellectual Property Electromechanical regulator with primary and backup modes of operation for regulating passenger oxygen
WO2009068059A1 (en) * 2007-11-29 2009-06-04 Airbus Operations Gmbh Tester for testing operational reliability of a cockpit oxygen distribution circuit
US8393323B2 (en) 2008-09-30 2013-03-12 Covidien Lp Supplemental gas safety system for a breathing assistance system
US20100185489A1 (en) * 2009-01-21 2010-07-22 Satyavolu Ramakrishna V Method for determining a personalized true cost of service offerings
GB0919818D0 (en) * 2009-09-16 2009-12-30 Airbus Operations Ltd Adaptable oxygen regulator system and method with an electronic control device
US9089721B1 (en) 2012-03-22 2015-07-28 The Boeing Company Oxygen generating system
US20130306062A1 (en) * 2012-05-21 2013-11-21 Sensible Disaster Solutions, Llc Oxygen administration system and method
US9242725B1 (en) * 2013-05-13 2016-01-26 The Boeing Company Selection of emergency descent rates for an aircraft due to cabin depressurization
CN110694189A (en) * 2019-10-22 2020-01-17 中交二公局第二工程有限公司 High-altitude inclined escape system and escape method thereof
CN113911369B (en) * 2021-09-02 2023-08-08 中国航空工业集团公司沈阳飞机设计研究所 Integrated oxygen supply device in aircraft cabin

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US4858606A (en) * 1986-10-09 1989-08-22 Normalair-Garrett (Holding) Systems Low pressure breathing regulators and breathing gas systems incorporating the same

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US6041714A (en) * 1997-03-28 2000-03-28 Holland Company Statically dissipative, non-metallic center bowl liner for railroad cars
US5988204A (en) 1998-01-26 1999-11-23 Emerson Electric Co. Adjustable fluid flow regulator
US6244540B1 (en) 1998-05-18 2001-06-12 James R. Stabile Method of calculating oxygen required and system for monitoring oxygen supply and/or calculating flight level after emergency cabin decompression
US6110427A (en) 1998-08-14 2000-08-29 Becton, Dickinson And Company Flow regulator to maintain controllable volumetric flow rate
US7341072B2 (en) * 2003-05-02 2008-03-11 Carleton Technologies, Inc. Oxygen supply system having a central flow control unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4499914A (en) * 1983-04-14 1985-02-19 Litton Systems, Inc. Selector valve for an aircraft on board oxygen generation system with high pressure oxygen backup
US4858606A (en) * 1986-10-09 1989-08-22 Normalair-Garrett (Holding) Systems Low pressure breathing regulators and breathing gas systems incorporating the same

Also Published As

Publication number Publication date
WO2005004991A2 (en) 2005-01-20
US20050005939A1 (en) 2005-01-13
US7341072B2 (en) 2008-03-11
US7789101B2 (en) 2010-09-07
US20040216742A1 (en) 2004-11-04

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