EP0000310A1 - Dispositif d'injection controlée de liquide cryogénique - Google Patents

Dispositif d'injection controlée de liquide cryogénique Download PDF

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Publication number
EP0000310A1
EP0000310A1 EP78400039A EP78400039A EP0000310A1 EP 0000310 A1 EP0000310 A1 EP 0000310A1 EP 78400039 A EP78400039 A EP 78400039A EP 78400039 A EP78400039 A EP 78400039A EP 0000310 A1 EP0000310 A1 EP 0000310A1
Authority
EP
European Patent Office
Prior art keywords
liquid
valve
aforementioned
filling
container
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.)
Withdrawn
Application number
EP78400039A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ghislain Gilbert
Gérard Bentz
Jean Galey
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0000310A1 publication Critical patent/EP0000310A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/028—Special adaptations of indicating, measuring, or monitoring equipment having the volume as the parameter
    • 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
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0176—Details of mounting arrangements with ventilation
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0326—Valves electrically actuated
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0408—Level of content in the vessel
    • F17C2250/0417—Level of content in the vessel with electrical means
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0491—Parameters measured at or inside the vessel
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/031—Treating the boil-off by discharge
    • 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
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7306—Electrical characteristic sensing

Definitions

  • the present invention essentially relates to a device for injecting, under adjustable pressure, a determined quantity of a cryogenic fluid stored in a storage tank.
  • cryogenic fluids in particular the use, in metallurgy of inert liquefied gases for the protection of baths and metal jets, the purging of molds and their maintenance in an inert atmosphere, the manufacture of parts formed from several metals, the casting in series of parts, etc., require that said fluid be delivered to the station of use, generally located in the open air, in a quantity dosed with precision during a determined time interval and automatically.
  • the device according to the invention makes it possible to deliver the cryogenic fluids under such conditions, and comprises, for this purpose, a capacity for retaining the liquid phase supplied by the storage tank via a supply valve, a control system of the aforementioned supply valve, sensitive to the level of the liquid in the capacity, a metering member at least supplied with liquid of the retaining capacity via a filling valve, said member being provided for receiving a determined quantity of said fluid and being provided with an evacuation valve, means for the forced evacuation of said metered quantity of liquid from said metering member, liquid dispensing means connected to said evacuation valve and a filling control system said metering member and its emptying, said control system being sensitive to the position of said dispensing means.
  • the device according to the invention makes it possible, thanks to the various means which compose it, to carry out the injection of a determined volume of cryogenic fluid, this in a sequential and automatic manner. Thanks to this device, it is possible to permanently maintain a protective layer of liquefied inert gas on a metal bath by pouring the liquid phase of said gas into it and regulating the distribution of this liquid phase so as to compensate for its evaporation. It is also possible to pour, into a mold of given volume, a quantity of liquefied gas necessary to ensure its inerting, prior to casting or possibly simultaneously with this casting. Finally, the device makes it possible to deliver constant quantities of liquefied gas at regular intervals, which is the case with the casting of foundry parts in metal shells on a casting carousel.
  • the abovementioned retaining capacity comprises a thermally insulated container provided, at its upper part, with a phase separator connected to the reservoir by a pipe for supplying cryogenic fluid and to the atmosphere by a vent, the supply valve being constituted by an electro-valve mounted in said pipe.
  • the container thus allows temporary storage, under atmospheric pressure, of the liquid phase of the cryogenic fluid, this phase being practically free of turbulence.
  • the aforementioned control device comprises an electric or electronic circuit for supplying the above-mentioned solenoid valve, said circuit being provided with adjustable level probes located inside the aforementioned container.
  • Such a control device keeps the cryogenic liquid in the container at a chosen level.
  • the aforementioned metering member comprises at least one vertical tubular element immersed, at least in part, in the li that contained in the container, this element being provided with an intake manifold opening into the mass of said liquid and comprising a filling valve.
  • the tubular element thus receives an amount of cryogenic liquid which is a function of the level of said liquid in the container.
  • the device intended to distribute the liquid phase of a cryogenic fluid stored under pressure in a reservoir designated by 1 essentially comprises a capacity 10 for retaining the liquid phase, a control system 20 for the supplying said capacity in the liquid phase, a metering member 30, discharge means 40 and distributor means 50 of said liquid phase and a control system 60 of said metering member.
  • the retaining capacity 10 essentially comprises a container 11 whose walls are insulated and which is provided, at its upper part, with a phase separator 12 constituted by a divided substance such as iron or copper wool.
  • the separator 12 communicates, by a pipe 13 provided with an electro-valve 14 operating on or off, with the reservoir 1 for storing the cryogenic fluid which is, for example, liquefied nitrogen.
  • the cryogenic fluid, brought by the line 13, is divided, in the separator 12, into a liquid phase which flows, via a conduit 15, inside the container 11 and into a vapor phase which vented to the open air via a vent 16.
  • the control system 20 for supplying the capacity 1O with cryogenic fluid comprises an electrical or electronic circuit of known type 21 which supplies an electric current to the electromagnet 23 of the solenoid valve 14 as a function of the information which are provided to it by means of detecting the level of the cryogenic liquid in the container pient 11.
  • These detection means consist of two probes 22a and 22b, which are, for example, resistance or vapor pressure probes, housed inside the container at two different heights.
  • the probes 22a and 22b are also provided so that they can be adjusted in height.
  • the metering member 30 essentially comprises at least one tubular element 31, of circular section disposed vertically inside the container 11 and immersed in the liquid contained in said container.
  • This tubular element 31, of net diameter of length L communicates, at its lower part, with a filling tube 32 which opens into the liquid phase and is provided with a filling electro-valve 33-.
  • the element 31 also comprises, at its lower end, an evacuation solenoid valve 34 and communicates, at its upper part, with forced evacuation means 40.
  • the means 40 provided for the forced evacuation, by the valve 34, of the liquid contained in the tubular element 31, comprise a source 41 of propellant gas under pressure, preferably consisting of an inert gas such as nitrogen and which communicates, via a pipe 42, with the upper part of the tubular element 31.
  • a source 41 of propellant gas under pressure preferably consisting of an inert gas such as nitrogen and which communicates, via a pipe 42, with the upper part of the tubular element 31.
  • a pressure relief valve 43 On the direction of flow of the propellant gas, a pressure relief valve 43, an injection solenoid valve 44 operating by all or nothing and a conduit 45 provided with a purge solenoid valve 46 communicating with the ambient atmosphere.
  • the dispensing means 50 are constituted by a plurality of flexible insulated pipes 51 each connected, by one of their ends, to the evacuation solenoid valve 34 of the tubular element 31. These pipes are each provided, at their free end, of a liquid dispensing member 53 constituted in the case shown, by a pouring spout.
  • the pipes 51 are connected to an operating mechanism 54. This mechanism can be constituted, for example, by a jack movable vertically in two opposite directions, as represented by the double arrow F, and provided with a finger 55, used for actuation of electrical contacts.
  • System 60 intended for and the forced emptying of the tubular element 31 essentially comprises an electrical or electronic circuit of known type 61 provided with contactors 62a and 62b actuated by the finger 55 of the operating mechanism 54.
  • the system 60 is designed to supply, depending on whether the contactors 62a, 62b are open or closed, therefore depending on the position of the mechanism 54, electromagnets 63, 64, 65 and 66 associated respectively with the filling solenoid valve 33, with the discharge solenoid valve 34, to the solenoid valve 44 for injecting propellant gas into the tubular element 31 and to the purge solenoid valve 46 of said tubular element.
  • the tubular element 31 is filled with cryogenic liquid by the principle of communicating vessels.
  • the solenoid valves 33 and 46 are closed and the solenoid valves 34 and 44 open.
  • the liquid contained in the element 31 is evacuated, under a pressure which can be adjusted using the regulator 43, in the pipes 51 and is injected, by the pouring spouts 53, into the molds or other cavities to be inerted.
  • a timer forming part of the circuit 61 closes the solenoid valve 34 when the injection is complete.
  • the mechanism 54 then returns to the high position for a new operating cycle.
  • the volume V of the fluid admitted into the tubular element 31 is a function of the height H and can be modified by the displacement of the probes 22a and 22b.
  • the variation ⁇ H of the height of the cryogenic liquid in the container 11 causes a variation ⁇ V equal to either an error of This error is all the smaller the longer the length L of.
  • the device according to the invention considerably facilitates the operations which require the use, at determined times, of precise quantities of cryogenic liquid, for example the casting of parts formed from two or more metals, the inerting of molds mounted on carousels casting, protection of intermittent molten metal jets etc ...
  • the metering members could be constituted by a series of elements designed to be filled and emptied successively so as to allow distribution of the cryogenic fluid at intervals which can be very close together.
  • the mechanism for operating the dispensing means could be constituted by a device other than a jack, for example by a carriage.
  • the solenoid valves 33 and 34 could be placed outside the container 11 although their arrangement inside the latter has the advantage of eliminating the formation of thermal bridges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP78400039A 1977-07-05 1978-06-28 Dispositif d'injection controlée de liquide cryogénique Withdrawn EP0000310A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7720553 1977-07-05
FR7720553A FR2396920A1 (fr) 1977-07-05 1977-07-05 Dispositif d'injection controlee de fluide cryogenique

Publications (1)

Publication Number Publication Date
EP0000310A1 true EP0000310A1 (fr) 1979-01-10

Family

ID=9192965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400039A Withdrawn EP0000310A1 (fr) 1977-07-05 1978-06-28 Dispositif d'injection controlée de liquide cryogénique

Country Status (5)

Country Link
US (1) US4192147A (it)
EP (1) EP0000310A1 (it)
CA (1) CA1095398A (it)
FR (1) FR2396920A1 (it)
IT (1) IT1097455B (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614216A (en) * 1984-02-24 1986-09-30 Canadian Liquid Air Ltd. Method of and apparatus for casting metal using carbon dioxide to form gas shield
EP0589562A1 (en) * 1992-08-27 1994-03-30 The Boc Group, Inc. Liquid cryogen dispensing apparatus and method
EP1931984A2 (en) * 2005-09-12 2008-06-18 Exxonmobil Research And Engineering Company A system and method that will synchronize data acquisition and modulation in a comprehensive two (multi) dimensional chromatography (separation) system to enable quantitative data analysis
CN105179929A (zh) * 2015-09-30 2015-12-23 江西佳因光电材料有限公司 物料灌装装置和物料的灌装方法

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302943A (en) * 1980-10-29 1981-12-01 The United States Of America As Represented By The United States Department Of Energy Method of measuring heat influx of a cryogenic transfer system
CA1169947A (en) * 1981-08-20 1984-06-26 Howard R. Braun Liquid nitrogen level controller
US4561258A (en) * 1985-01-24 1985-12-31 Mg Industries Gravity-fed low pressure cryogenic liquid delivery system
SE457750B (sv) * 1986-07-21 1989-01-23 Aga Ab Apparat foer dosering av smaa maengder kondenserad gas
US4865088A (en) * 1986-09-29 1989-09-12 Vacuum Barrier Corporation Controller cryogenic liquid delivery
US4715187A (en) * 1986-09-29 1987-12-29 Vacuum Barrier Corporation Controlled cryogenic liquid delivery
US4791788A (en) * 1987-08-24 1988-12-20 Quantum Design, Inc. Method for obtaining improved temperature regulation when using liquid helium cooling
US4848093A (en) * 1987-08-24 1989-07-18 Quantum Design Apparatus and method for regulating temperature in a cryogenic test chamber
US5079925A (en) * 1990-04-10 1992-01-14 Union Cagbide Canada Limited Cryogenic apparatus
US5142874A (en) * 1990-04-10 1992-09-01 Union Carbide Canada Limited Cryogenic apparatus
US5123250A (en) * 1990-04-10 1992-06-23 Union Carbide Canada Limited Cryogenic apparatus
FR2694631B1 (fr) * 1992-08-10 1994-11-04 Carrier Sa Procédé et dispositif de détermination de la phase d'un gaz comprimé; procédé et dispositif de transfert d'un gaz comprimé les mettant en Óoeuvre.
US5552371A (en) * 1994-05-17 1996-09-03 Industrial Technology Research Institute YBA CUO-type superconducting material based apparatus for auto-filling liquid nitrogen
US5647228A (en) * 1996-07-12 1997-07-15 Quantum Design, Inc. Apparatus and method for regulating temperature in a cryogenic test chamber
WO2004041444A1 (en) * 2002-11-06 2004-05-21 Advanced Flow Control Afc Ab System for spraying a fluid material
US20090065637A1 (en) * 2007-09-10 2009-03-12 Duncan Robert V Buoyancy system using double-sorb controllers for engine fueling and airship attitude correction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1460017A (fr) * 1965-10-13 1966-06-17 Compteurs Comp D Dispositif de transvasement mesuré d'un gaz liquéfié
US3938347A (en) * 1974-04-12 1976-02-17 Optical Coating Laboratory, Inc. Level control apparatus and method for cryogenic liquids
FR2302479A1 (fr) * 1975-02-25 1976-09-24 Air Liquide Dispositif pour la distribution controlee de fluide cryogenique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262280A (en) * 1964-10-26 1966-07-26 Ray L Chaney Level control for cryogenic liquid
US3633372A (en) * 1969-04-28 1972-01-11 Parker Hannifin Corp Transfer of cryogenic liquids

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1460017A (fr) * 1965-10-13 1966-06-17 Compteurs Comp D Dispositif de transvasement mesuré d'un gaz liquéfié
US3938347A (en) * 1974-04-12 1976-02-17 Optical Coating Laboratory, Inc. Level control apparatus and method for cryogenic liquids
FR2302479A1 (fr) * 1975-02-25 1976-09-24 Air Liquide Dispositif pour la distribution controlee de fluide cryogenique

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4614216A (en) * 1984-02-24 1986-09-30 Canadian Liquid Air Ltd. Method of and apparatus for casting metal using carbon dioxide to form gas shield
EP0589562A1 (en) * 1992-08-27 1994-03-30 The Boc Group, Inc. Liquid cryogen dispensing apparatus and method
EP1931984A2 (en) * 2005-09-12 2008-06-18 Exxonmobil Research And Engineering Company A system and method that will synchronize data acquisition and modulation in a comprehensive two (multi) dimensional chromatography (separation) system to enable quantitative data analysis
EP1931984A4 (en) * 2005-09-12 2008-11-26 Exxonmobil Res & Eng Co SYSTEM AND METHOD FOR SYNCHRONIZING DATA ACQUISITION AND MODULATION IN A GLOBAL TWO (MULTI) DIMENSION CHROMATOGRAPHY (SEPARATION) SYSTEM TO PERMIT QUANTITATIVE DATA ANALYSIS
US7623946B2 (en) 2005-09-12 2009-11-24 Exxonmobil Research And Engineering Company System and method that will synchronize data acquisition and modulation in a comprehensive two (multi) dimensional chromatography (separation) system to enable quantitative data analysis
CN105179929A (zh) * 2015-09-30 2015-12-23 江西佳因光电材料有限公司 物料灌装装置和物料的灌装方法
CN105179929B (zh) * 2015-09-30 2016-08-17 江西佳因光电材料有限公司 物料的灌装方法

Also Published As

Publication number Publication date
IT1097455B (it) 1985-08-31
US4192147A (en) 1980-03-11
FR2396920B1 (it) 1980-02-01
IT7825139A0 (it) 1978-06-29
FR2396920A1 (fr) 1979-02-02
CA1095398A (fr) 1981-02-10

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