GB940749A - Liquid oxygen converter system for passenger aircraft - Google Patents

Liquid oxygen converter system for passenger aircraft

Info

Publication number
GB940749A
GB940749A GB2438661A GB2438661A GB940749A GB 940749 A GB940749 A GB 940749A GB 2438661 A GB2438661 A GB 2438661A GB 2438661 A GB2438661 A GB 2438661A GB 940749 A GB940749 A GB 940749A
Authority
GB
United Kingdom
Prior art keywords
supply line
valve
build
pressure
liquid oxygen
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
GB2438661A
Inventor
Simon Kugler
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.)
BOC Group Ltd
Original Assignee
British Oxigen Ltd
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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB2438661A priority Critical patent/GB940749A/en
Publication of GB940749A publication Critical patent/GB940749A/en
Priority to GB2922862D priority patent/GB1014259A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/06—Respiratory apparatus with liquid oxygen or air; Cryogenic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
    • B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being pressurised
    • B64D13/04—Automatic control of pressure

Abstract

940,749. Respiratory apparatus. BRITISH OXYGEN CO. Ltd. Aug. 29, 1962 [July 5, 1961], No. 24386/61. Heading A5T. [Also in Division F4] A liquid oxygen breathing apparatus for use in aircraft comprises first and second liquid oxygen supply lines 16, 17 extending from a liquid oxygen converter 10 to crew and passengers respectively, the outlet 14 to the second supply line being at a higher level than the outlet 13 to the first supply line, a build-up circuit 18, 22, 23 being connectable with either supply line through a multiport changeover valve A which is biased towards a first position, in which it isolates the second supply line and connects the build-up circuit with the first supply line, and which is normally held by a catch (not shown) in a second position in which it connects the second supply line with the build-up circuit, the catch being releasable in response to reduction in pressure below a predetermined value so that the valve is moved to its first position and the changeover valve being manually returnable to its second position. The fall in pressure which releases the catch occurs when the liquid oxygen in the converter has fallen below the level of the passenger supply outlet 14 and causes the valve to cut off oxygen from the passengers, supply to the crew continuing. Non-return valves 20, 21 and vaporizing coils (not shown) are disposed in each supply line. The changeover valve A includes a rotatable body arranged in a housing having a port 25 connected with the build-up circuit which includes a combined, build-up filler and vent valve 18 and a pressure closing valve 24, ports 27, 28 connected in the second supply line and a port 29 connected to the first supply line. Normally excess pressure developed in the converter is released to atmosphere through a relief valve (not shown) but in a modification such pressure is released through a pressure opening valve (Fig. 2, not shown) into the first supply line.
GB2438661A 1961-07-05 1961-07-05 Liquid oxygen converter system for passenger aircraft Expired GB940749A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2438661A GB940749A (en) 1961-07-05 1961-07-05 Liquid oxygen converter system for passenger aircraft
GB2922862D GB1014259A (en) 1961-07-05 1964-07-17 Liquid oxygen converter system for passenger aircraft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2438661A GB940749A (en) 1961-07-05 1961-07-05 Liquid oxygen converter system for passenger aircraft

Publications (1)

Publication Number Publication Date
GB940749A true GB940749A (en) 1963-10-30

Family

ID=10210926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2438661A Expired GB940749A (en) 1961-07-05 1961-07-05 Liquid oxygen converter system for passenger aircraft

Country Status (1)

Country Link
GB (1) GB940749A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279472B (en) * 1964-03-20 1968-10-03 British Oxygen Co Ltd Evaporation system for liquid oxygen to supply oxygen to breathing apparatus
WO2004083701A1 (en) * 2003-03-17 2004-09-30 Carleton Technologies, Inc. Riser line shutoff valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279472B (en) * 1964-03-20 1968-10-03 British Oxygen Co Ltd Evaporation system for liquid oxygen to supply oxygen to breathing apparatus
WO2004083701A1 (en) * 2003-03-17 2004-09-30 Carleton Technologies, Inc. Riser line shutoff valve
US6988509B2 (en) 2003-03-17 2006-01-24 Carleton Technologies, Inc. Riser line shutoff valve

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