US3640083A - Generator of cool working gases - Google Patents

Generator of cool working gases Download PDF

Info

Publication number
US3640083A
US3640083A US23154A US3640083DA US3640083A US 3640083 A US3640083 A US 3640083A US 23154 A US23154 A US 23154A US 3640083D A US3640083D A US 3640083DA US 3640083 A US3640083 A US 3640083A
Authority
US
United States
Prior art keywords
insert
outlet
gas generator
ports
chamber
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 - Lifetime
Application number
US23154A
Other languages
English (en)
Inventor
Lyle D Galbraith
William F Thorn
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.)
Rocket Research Co
Original Assignee
Rocket Research Co
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 Rocket Research Co filed Critical Rocket Research Co
Application granted granted Critical
Publication of US3640083A publication Critical patent/US3640083A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D25/00—Emergency apparatus or devices, not otherwise provided for
    • B64D25/08—Ejecting or escaping means
    • B64D25/14—Inflatable escape chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J7/00—Apparatus for generating gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • F42B3/045—Hybrid systems with previously pressurised gas using blasting to increase the pressure, e.g. causing the gas to be released from its sealed container

Definitions

  • N -I 2 ,1 its storage chamber into a mixing zone.
  • the remainder of the hot gases are directed into the mixing zone for mixing with the liquid.
  • the hot gases provide the heat of vaporization for, and (5
  • the g generator 58] i I52 prises a one-piece housing of composite welded construction,
  • a control cartridge containing burst discs, flow control orifices and seals is inserted into the housing through the outlet [56] References cued passageway.
  • a solid fuel cartridge is inserted into the breech UNITED STATES PATENTS through an opening at the opposite end of the housing. 3,431,742 3/1969 Green ..62/52 26 Claims, 7 Drawing Figures PATENTEDFEB 81972 3.640.083
  • a r roPA/yf BACKGROUND OF THE INVENTION 1.
  • the present invention relates primarily to the generation of a relatively low-temperature working fluid, and in particular to a construction of the equipment or hardware for handling and combining the substances which produce the working fluid.
  • Wismar U.S. Pat. No. 3,163,014 discloses a process comprising: generating hot combustion gases and initially directing all of such gases into a chamber containing liquefied carbon dioxide. Such chamber is initially closed by a blowout element. When the pressure in such chamber exceeds the burst pressure of the blowout element, such element is ruptured, and the outlet is opened. The remaining combustion gases then serve to aspirate the mixture of gases from the carbon dioxide storage chamber.
  • U.S. Pat. No. 3,122,181 discloses entraining ambient air in a working fluid constituting a mixture of combustion gases and carbon dioxide, and then introducing the mixture into an inflatable device.
  • the present invention relates to a particular gas generator capable of performing the methods disclosed in the Charles J. Green U.S. Pat. Nos. 3,431,742 and 3,431,743, both granted on Mar. 11, 1969, and both entitled Generation of Cool Working Fluids.
  • the gas generators of this invention each comprises a housing of welded composite form, including concentrically related inner and outer housing parts.
  • the outer housing part includes a cylindrical body.
  • the inner housing part includes a flanged tubular outlet member and a tubular body member.
  • a one-piece inlet ring member is welded to the inlet ends of the two body members.
  • one piece of a two-piece inlet ring is welded to the inlet end of the outer body member and the other piece is welded to the inlet end of the inner body member.
  • the inner housing part is inserted into the outer housing part and the two housing parts are welded together at the two ends of the generator.
  • the inlet ring member is internally threaded to receive the threads of a retainer ring restraining an end closure which carries a firing assembly for the fuel grain.
  • the fuel grain is inserted into the gas generator through an inlet opening in the inlet ring member and then the end closure member and retainer ring are installed.
  • a control orifice and burst disc insert is inserted into, and after use is removed from-the assembly via an outlet passageway provided in the outlet member of the inner housing part.
  • FIG. I is a side elevational view of a cool gas generator embodying features of the present invention, shown in a leaning attitude typical of one it might occupy in some aircraft escape slide inflation systems;
  • FIG. 2 is a longitudinal sectional view of the cool gas generator of FIG. 1, prior to activation, with a closure plug thereof shown spaced outwardly from its installed position;
  • FIG. 3 is a view like FIG. 2, but showing the generator in an active condition
  • FIG. 4 is a cross-sectional view taken substantially along line 4-4 of FIG. 3;
  • FIG. 5 is an exploded view of various casing parts which make up the gas generator of FIGS. 1-4, with the liquid pickup tube, its connector, the gas deflector, and the retainer ring omitted;
  • FIG. 6 is an end elevational view at the inlet end of the assembled casing members, with the inlet and closure member removed and the outlet end details omitted;
  • FIG. 7 is an exploded view of the housing parts only of a modified form of gas generator.
  • the cool gas generator of FIGS. 1-6 is shown to comprise an outer enclosure or casing 10 of elongated tubular form. Located inside of enclosure 10 is a smaller inner tubular enclosure 12. An annular space 14 exists between the respective annular sidewall means of the two enclosures l0, 12. This space 14 constitutes a storage space for the vaporizable liquid L.
  • the inner enclosure 12 is axially divided into a breech or hot gas generator chamber 16 and an outlet passageway 18.
  • Chamber 16 is shown to contain a solid fuel grain 20.
  • a percussion-type firing mechanism 22 is illustrated by way of typical example only.
  • the fuel grain 20 may be constructed according to any of the designs of fuel grains disclosed by the aforementioned U.S. Pat. No. 3,431,742.
  • the upstream end portion of the outlet passageway 18 includes a grain support 21 formed to include a-plurality of gas openings 19. Some of the hot gases flow through these openings 19 into the annular space 23 which surrounds grain 20, for substantially equalizing the pressure on the grain casing. This makes it possible to use a thin casing material around the grain 20.
  • a control orifice insert 24 is supported within the outlet passageway 18.
  • Insert 24 is shown to include an axial passageway 26 through which most of the hot gases flow.
  • Insert 24 also includes an enlarged inlet cavity 28.
  • a second hot gas passageway extends from the inlet cavity 28 into the liquid storage space 14.
  • This "passageway comprises one or more generally radial ports 30 formed in the insert 24, a girth channel or groove 32 formed in the insert in the vicinity of where the port(s) 30 breaks the periphery of the insert 24, and one or more radial ports 34 formed in the wall of the outlet passageway 18.
  • a shoulder 36 (FIGS. 2, 3 and 5) serves as a spacing stop for the insert 24.
  • the snapring 37 (FIGS. 2 and 3) is placed within girth groove 39 (FIG. 5)
  • groove 32 is properly aligned with the port(s) 34.
  • the use of a girth groove 32 makes it possible for the port(s) 30 to always be in communication with the port(s) 34 (via groove 32) regardless of the angular position of the insert 24 in its receiving chamber.
  • a second girth groove or channel 38 is formed in the insert 24, downstream of groove 32. When the front end of the insert 24 is against the stop 36 this channel 38 is in communication with one or more radial ports 41 formed in the sidewall of outlet passageway 18. One or more ports 40 in insert 24 communicate the channel 38 with an enlarged outlet cavity 42 in the insert 24.
  • the insert 24 includes a plurality of axially spaced girth grooves for receiving sealing O-rings.
  • the first O-ring 44 (FIGS. 2 and 3) is provided in insert 24. upstream of groove 32.
  • the second O-ring 46 is located between grooves 32 and 38.
  • the third O-ring 48 is located downstream of groove 38 and may be at larger diameter-than O-rings 44, 46.
  • The'insert 24 is constructed for receiving and retaining a pair of burst discs 50, 52.
  • the upstream burst disc 50 is located upstream of the inlets for port(s) 30 and passageway 26.
  • the second burst disc 52 is located downstream of the outlets from port(s) 40 and passageway 26.
  • the gas generator may occupy an inclining attitude of X degrees (shown by way of example to be about fifteen degrees (15") to horizontal).
  • the gas generator may occupy such an attitude withina compartment prepared for it within the door for the opening in the aircraft with which the escape slide to be inflated is associated.
  • the gas generator has general utility and in other aircraft or nonaircraft installations may occupy an entirely different attitude.
  • the lowest portion 54 of the liquid storage space 14 is near the inletend of the gas generator.
  • a liquid pickup tube 56 extends from this region 54 up to a point of connection with thewall means for passageway 18, at a location enveloping the port(s) 41.
  • the inlet for the pickup tube 56 is located in the region of the low point for such installation.
  • a gas deflector ismounted on outlet passageway 18 radially outwardly from the port(s) 34.
  • this deflector is shown in the form of a sheet material hood 58 having an end-wall 60 aligned with the port 34 and having sidewall openings 62.
  • the fuel grain 20 is initiated by a pulling-on or other (e.g., electrical control) release of the firing pin, to activate the firing mechanism 22.
  • Burst discs 50, 52 break (almost simultaneously) when the pressure on them exceeds a predetermined value.
  • a first portion of hot gases flows through the ports 30, 34 and into the liquid storage chamber 14.
  • the hot gases entering the storage chamber 14 pressurize the liquid L therein and force feed it through the pickup tube 56 towards the annular manifold 38.
  • the pressurized liquid L flows from manifold 38 through the ports 40 and into mixing contact with the hot gases issuing from passageway 26.
  • the hot gases and liquid meet and mix together in outlet cavity 42.
  • the outlet cavity 42 is at least the start of a mixing chamber or zone.
  • some mixing may continue in the passageway downstream of cavity 42.
  • the hot gases supply the latent heat of vaporization for the liquid, causing its vaporization, attended by a significant cooling of the hot gases.
  • the relatively cool gaseous working fluid that is formed then flows from the outlet passageway 18 through a conduit 64 to a utilization device, e.g., the inlet of a gas confining type inflatable.
  • the liquid may be a liquefied fluorinated hydrocarbon type refrigerant, liquefied carbon dioxide, liquefied air, liquefied ammonia, a mixture of liquefied ammonia and water, i.e., aqueous ammonia, water alone, or a mixture of these or other such materials blended to produce gaseous mixtures of various desired compositions and properties.
  • the outer housing is shown to comprise a cylindrical shell 66 and a specially formed (e.g., forged or east) end piece 68.
  • the piece 68 is welded to one end of cylinder 66 at weld line 70,
  • the opposite end of cylinder 66 is either drawn into the shape shown, or the generally hemispherical section 72 is separately formed and is then welded to the cylinder 66 (at location w).
  • the inner housing assembly 16 comprises a cylindrical intennediate portion 74, a specially constructed (e.g., forged or cast) inlet end member 76 and a specially fabricated (e.g., forged, machined or cast) opposite end member 80 which defines the outlet passageway, including the cavity 82 for the insert 24.
  • the generally ellipsoidal portion 84 of cylinder 74 may be a draw-formed part of cylinder 74, or may be a separately constructed member which is later welded to the cylinder 74 (at location w), or may be included as a part of member 80.
  • Member 80 includes a generally radial-contoured flange 86. In the illustrated embodiment member 80 is welded at 88 to the section 84 of cylinder 74.
  • the downstream end of the inner housing 16 is inserted through the inlet opening ,90 of outer housing 10.
  • the inner housing 16 is then moved completely into the outer housing 10 until the edge surface 92 of flange 86 is adjacent the edge surface 94 of section 72, and the edge surface 96 of member 76 is adjacent the edge surface 98 of member 68.
  • the two housings are welded together where the surfaces 92, 94 meet and where the surfaces 96, 98 meet.
  • the gap between surfaces 96, 98 is completely filled by weld 100.
  • fill and liquid level indicator openings 102, 104 are drilled through the welded area and are tapped for receiv ing a threaded closure fitting or plug therein.
  • the closure plug 103 for opening 102 is shown in FIGS. 2 and 3.
  • the firing mechanism 22 is carried by a cap 101 insertable in through opening 108, and retained in place by retainer ring means 105, as shown in FIGS. 2 and 3.
  • the cap 101 also includes a threaded opening for receiving a safety burst disc fitting 107.
  • FIG. 7 shows a slightly modified form of the generator.
  • a one-piece end ring is used.
  • the ring 110 is welded at 112 to the inlet end of member 74.
  • member 80 attached (by welding) the inner assembly is inserted into member 66.
  • ring 110 is welded at 114 to the inlet end of member 66 and member 66 is welded at 94 to the flange 86 at 92, but not necessarily in this order.
  • Ring member 110 is threaded at 118 to receive the retainer ring means 105, as shown in FIGS. 2 and 3.
  • the inner and outer housing assemblies l0, 16 are permanently joined so that the resulting housing structure is of one-piece composite form.
  • Liquid pickup tube 56 is secured at its outlet end to the member 80.
  • a connector 57 is used to secure the opposite end of tube 56 to a portion of wall 16.
  • This connector 57 has a generally U-shaped central portion which partially surrounds tube 56 and straplike end portions which are secured to the wall 16.
  • Another important advantage of the construction of this gas generator is that a family of several sizes of gas generators can be easily built without having to fabricate an entirely new set of gas generator parts. According to the invention, for a given family of sizes it is only necessary to vary the lengths of the cylinders 66, 74 and the length of the fuel grain 20.
  • the other parts of the gas generator are standard and may be used with any size generator of the family. In some installations it may be desirable to vary the size of the ports in insert 24 from one size to the next, but this is an easy and inexpensive modification. Additional ranges of sizes-may be similarly provided in a larger or smaller diameter generator by similar length variations.
  • the insert 24 is provided with an enlarged diameter outer end portion. If the insert 24 is not seated tight against surface 36 and the snapring 37 is not properly within groove 39, the vapor pressure of the stored liquid will exert a force on surface 120, causing ejection of insert 24. Thus, the gas generator will not let the person loading it forget to install, or to improperly install, snapring 37.
  • passageway 26 The restricted nature of passageway 26 is a very important feature of the invention. It causes a pressure drop which makes flow of the liquid possible. Owing to the presence of this restriction 26 the pressure in region 42 is less than in chamber 14. Thus, the gas pressure on the liquid in chamber 14 force feed the liquid into the zone 42.
  • the gas generator has general utility.
  • Examples of uses in addition to escape slide inflation include: for turbine operation, for undersea flotation bag inflation, for flotation systems generally, and for controlled temperature hot gas supply systems.
  • a cool gas generator comprising:
  • said inner housing means comprising tubular wall means defining a hot gas generation chamber and a communicating tubular outlet section extending from said chamber to an outlet opening in said outer housing means; generation means in said hot gas generator chamber for generating hot gases therein, for release therefrom into said outlet section;
  • said inner housing means also including a hot gas passageway leading from the interior thereof into said storage space, for delivering a first portion of the hot gases into said space, and a liquid passageway downstream of said hot gas passageway, leading from said space into said outlet section, and conduit means leading from said outlet section to a utilization station; and
  • the tubular wall means defining the outlet section has first and second ports therein, one of which constitutes a portion of said hot gas passageway and the other of which constitutes a portion of said liquid passageway;
  • an elongated, replaceable control insert snugly received inside said outlet section, said insert having inlet and outlet portions, and elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, through which a second portion of the hot gases flow, a first side port extending from said inlet portion to the hot gas passageway port in said tubular wall means, in parallel flow relationship to said generally axial passageway, a second side port extending from said outlet portion to the liquid passageway port in said tubular wall means, a first pressure-releaseable closure member spanning across and initially closing the inlet end portion at a location upstream of the entrances of both said first side port and said generally axial passageway, and a second pressurereleaseable closure member spanning across and initially closing the outlet portion, at a location downstream of the outlets of both said second side port and said generally axial passageway.
  • a cool gas generator according to claim 1, wherein said insert is accessible from the outlet opening in the outer housing, so that it can be removed and replaced by a new insert through said outlet opening.
  • a cool gas generator according to claim 1, further including deflector means secured to the tubular wall means of the outlet section, for turning the hot gases issuing from said first port and directing them substantially axially.
  • a cool gas generator according to claim 1, wherein said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in. communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.
  • a cool gas generator according to claim 1, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.
  • a cool gas generator comprising:
  • an elongated, generally cylindrical, outer sidewall member having first and second ends
  • a an elongated, generally cylindrical, inner sidewall member having first and second ends, said member being both shorter and smaller in diameter than said outer member and being located inside said outer member;
  • ringwall means connecting together the first ends of said sidewall members and forming a radial wall between said first ends, said ringwall means including an open center for receiving a gas generator grain cartridge assembly insertable through said center into the inner sidewall member;
  • an outlet member having a first end connected to the second end of said inner sidewall member, said outlet member extending from said second end of the inner sidewall member through an opening in the second end of the outer side member, and having an outlet opening at its second end, with said outer sidewall member meeting said outlet member in the vicinity of said outer wall opening to form an end closure for the annular space which surrounds said inner sidewall member and the portion of the outlet member which is housed therein, said outlet member including sidewall means forming an axial chamber therein, first and second sidewall openings in said sidewall means extending between said chamber and said annular space; and
  • an elongated, replaceable control insert snugly received inside said chamber, said insert having inlet and outlet portions, an elongated, generally axial, small diameter passageway therein, extending from said inlet portion to said outlet portion, a first side port extending from saidv inlet portion to the first sidewall opening and a second side port extending from said outlet portion to said second sidewall port.
  • a cool gas generator according to claim 7, wherein the opening at the second end of the outer sidewall member is larger in diameter than the control insert containing portion of said outlet member and said outlet member includes a radial flange which projects outwardly to the rim of said opening, and is connected thereto.
  • a cool gas generator according to claim 7, wherein said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the sideports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means,
  • a cool gas generator comprising:
  • inner and outer housing means defining an annular storage space between them which is closed at both of its ends, said inner housing means including a combustion chamber, a control insert chamber, a mixing zone, and an outlet in series, said inner casing also including an access opening at the combustion chamber end therein, through which a solid fuel grain may be inserted into the combustion chamber, and a removable closure for said opening, said closure carrying initiator means for said grain, and a control insert insertable into and removable from its chamber through the outlet of said inner housing means, said control insert comprising a first metering passageway for combustion gases leading to the mixing zone, a second combustion gases passageway leading into the storage space, for supplying pressurizing gases into said space, and an outlet passageway leading from said storage space into the mixing zone.
  • the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.
  • a cool gas generator comprising:
  • a one-piece housing formed from integrally joined inner and outer tubular wall means defining a liquid storage space between them;
  • said inner wall means defining communicating breech, control insert and mixing chambers
  • said housing being open at one end of the inner wall means for insertion of a fuel cartridge through such end into the breech chamber;
  • said housing being open in the vicinity of the mixing chamber for insertion of a control insert through such opening and the mixing chamber into the control insert chamber;
  • said inner wall means having openings therein in the vicinity of the control insert chamber, for communicating the interior of the control insert chamber with the liquid storage space; and a control insert sized to snugly fit mside said control insert chamber and including a first metering orifice leading through it, for communicating the breech chamber with the mixing chamber, a second metering orifice for communicating the breech chamber with the interior of the liquid storage space, via a said opening in the control insert chamber portion of the inner wall means, and a third metering orifice for communicating the interior of the liquid storage space with the mixing chamber, via a said opening in the control insert chamber portion of the inner wall means.
  • a cool gas generator according to claim 19, wherein the inlet and outlet portions of said insert are larger in diameter than said generally axial passageway through the insert, said first side port has its entrance in said inlet portion, upstream of the entrance to said generally axial passageway, and the second side port discharges into said outlet portion, downstream of the discharge end of said generally axial passageway.
  • a cool gas generator according to claim I, wherein said second and third metering orifices are side ports in said insert, and said insert includes a girth channel surrounding its periphery where each said side port meets the periphery, so that the side ports of the insert are always in communication with the ports in the tubular wall of the outlet section regardless of the angular relationship of the insert ports to the ports in the sidewall means.
  • the third orifice side port discharges into said outlet portion, downstream of the discharge end of said first orifice.
  • a cool gas generator according to claim 19, wherein said control insert has an enlarged-diameter outlet end portion including surfaces in communication with the stored liquid pressure, and retainer means for holding the insert in place, with the stored liquid pressure acting on said surface of said enlarged diameter outlet end serving to force the insert out of the outlet section if it is not properly retained by said retainer means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Air Bags (AREA)
US23154A 1970-03-27 1970-03-27 Generator of cool working gases Expired - Lifetime US3640083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2315470A 1970-03-27 1970-03-27

Publications (1)

Publication Number Publication Date
US3640083A true US3640083A (en) 1972-02-08

Family

ID=21813430

Family Applications (1)

Application Number Title Priority Date Filing Date
US23154A Expired - Lifetime US3640083A (en) 1970-03-27 1970-03-27 Generator of cool working gases

Country Status (3)

Country Link
US (1) US3640083A (enExample)
DE (1) DE2114761A1 (enExample)
FR (1) FR2087905A5 (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886733A (en) * 1973-08-24 1975-06-03 Nrg Inc Pneumatic energy source utilizing liquid oxygen
US4713101A (en) * 1985-04-16 1987-12-15 Graviner Limited Cooling apparatus
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
US6968673B1 (en) * 2003-11-14 2005-11-29 Knight Andrew F Cool gas generator and ultra-safe rocket engine
GB2457719A (en) * 2008-02-22 2009-08-26 Gkn Aerospace Services Ltd An emergency flotation device for use with an aircraft
DE102012217718A1 (de) 2011-09-30 2013-04-04 Diehl Bgt Defence Gmbh & Co. Kg Pyrotechnische Kaltgasgeneratoren
WO2018085902A1 (en) * 2016-11-14 2018-05-17 Archimedes Pty Ltd An inflation system for use in a buoyancy system
US10696470B2 (en) * 2017-06-05 2020-06-30 J&N Tactical Llc Gas delivery device and gas delivery apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431743A (en) * 1967-11-07 1969-03-11 Rocket Research Corp Generation of cool working fluids
US3431742A (en) * 1967-01-09 1969-03-11 Rocket Research Corp Generation of cool working fluids

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3431742A (en) * 1967-01-09 1969-03-11 Rocket Research Corp Generation of cool working fluids
US3431743A (en) * 1967-11-07 1969-03-11 Rocket Research Corp Generation of cool working fluids

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886733A (en) * 1973-08-24 1975-06-03 Nrg Inc Pneumatic energy source utilizing liquid oxygen
US4713101A (en) * 1985-04-16 1987-12-15 Graviner Limited Cooling apparatus
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
US6968673B1 (en) * 2003-11-14 2005-11-29 Knight Andrew F Cool gas generator and ultra-safe rocket engine
GB2457719A (en) * 2008-02-22 2009-08-26 Gkn Aerospace Services Ltd An emergency flotation device for use with an aircraft
GB2457719B (en) * 2008-02-22 2010-03-17 Gkn Aerospace Services Ltd Emergency flotation apparatus
DE102012217718A1 (de) 2011-09-30 2013-04-04 Diehl Bgt Defence Gmbh & Co. Kg Pyrotechnische Kaltgasgeneratoren
WO2018085902A1 (en) * 2016-11-14 2018-05-17 Archimedes Pty Ltd An inflation system for use in a buoyancy system
US10696470B2 (en) * 2017-06-05 2020-06-30 J&N Tactical Llc Gas delivery device and gas delivery apparatus
US11124355B2 (en) * 2017-06-05 2021-09-21 J&N Tactical Llc Gas delivery device and gas delivery apparatus

Also Published As

Publication number Publication date
FR2087905A5 (enExample) 1971-12-31
DE2114761A1 (de) 1971-10-21

Similar Documents

Publication Publication Date Title
US3117424A (en) Apparatus for generating gaseous mixtures for inflating inflatable devices
US3833029A (en) Method and apparatus for generating gaseous mixtures for inflatable devices
US3163014A (en) Apparatus for generating gaseous mixtures
US4600123A (en) Propellant augmented pressurized gas dispensing device
US3431742A (en) Generation of cool working fluids
US3733180A (en) Solid state cool gas generator
US3558285A (en) Propellant gas generator
US5988438A (en) Apparatus for rapid inflation of inflatable object and related method
US3813007A (en) Gas generator with coolant expulsion means
DE69618911T2 (de) Aufblasvorrichtung mit flüssigem Brennstoff und einem porösen Aufnahmemittel
US3640083A (en) Generator of cool working gases
DE69511331T2 (de) Vorrichtung zum Aufblasen eines aufblasbaren Fahrzeuginsassen-Rückhaltesystems
JPH11217054A (ja) ハイブリッドインフレータに於けるガス流の制御
US2954670A (en) Method of propellant stowage, arming and initiation of propellant flow for a liquid fuel propulsion system in a liquid fuel rocket motor
US3787010A (en) Inflating apparatus
US2248308A (en) Method and apparatus for valving inflammable fluids
US3930666A (en) Hybrid gas system for automobile passenger restraint system
JPH0911843A (ja) 発射体を用いたハイブリッド型のインフレーティング装置
US3066014A (en) Cool gas generator
US2802332A (en) High energy gas producer
US3122181A (en) Generation of gaseous mixtures for inflatable devices
US3431743A (en) Generation of cool working fluids
US3232481A (en) Apparatus for generating gaseous mixtures
US3721102A (en) Cool working gas generator
US3719054A (en) Liquefied gas vaporizer attachment for a pressure bottle