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WO2012018640A1 - Procédé de fabrication d'une chambre de réaction pour un ensemble stockage de carburant - Google Patents

Procédé de fabrication d'une chambre de réaction pour un ensemble stockage de carburant Download PDF

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Publication number
WO2012018640A1
WO2012018640A1 PCT/US2011/045407 US2011045407W WO2012018640A1 WO 2012018640 A1 WO2012018640 A1 WO 2012018640A1 US 2011045407 W US2011045407 W US 2011045407W WO 2012018640 A1 WO2012018640 A1 WO 2012018640A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic enclosure
vacuum tube
opening
elastic
enclosure
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.)
Ceased
Application number
PCT/US2011/045407
Other languages
English (en)
Inventor
Kei Kohatsu
Courtney Helland
Matthieu Jonemann
Andrew Peterson
Daniel Braithwaite
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.)
Ardica Technologies Inc
Original Assignee
Ardica Technologies Inc
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 Ardica Technologies Inc filed Critical Ardica Technologies Inc
Publication of WO2012018640A1 publication Critical patent/WO2012018640A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04208—Cartridges, cryogenic media or cryogenic reservoirs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04216—Reactant storage and supply, e.g. means for feeding, pipes characterised by the choice for a specific material, e.g. carbon, hydride, absorbent
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49345—Catalytic device making
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making

Definitions

  • This invention relates generally to the reaction chamber field, and more specifically to a new and useful method of manufacturing a reaction chamber in the reaction chamber field.
  • FIGURE l is a schematic representation of a method of manufacturing a reaction chamber.
  • FIGURES 2A, 2B, and 2C are schematic representations of a first, second, and third step, respectively, of a vacuum embodiment of the step of stretching the body of the elastic enclosure to define a working lumen.
  • FIGURES 3A, 3B, and 3C are schematic representations of a first, second, and third step, respectively, of a first embodiment of the second step of the vacuum embodiment.
  • FIGURE 4 is a schematic representation of a second embodiment of the second step of the vacuum embodiment.
  • FIGURE 5 is a schematic representation of a variation of the second embodiment of the second step of the vacuum embodiment.
  • FIGURE 6 is a schematic representation of a positive pressure embodiment of the step of stretching the body of the elastic enclosure to define a working lumen.
  • FIGURE 7 is a schematic representation of an embodiment of the step of orienting the fuel insert within the working lumen.
  • FIGURES 8 A and 8B are schematic representations of a first and second embodiment, respectively, of the step of inserting a liquid delivery mechanism into the reaction chamber.
  • FIGURE 9 is a schematic representation of a first method of sealing the elastic enclosure opening about the liquid delivery mechanism.
  • FIGURE 10 is a schematic representation of a first method of trimming a portion of elastic enclosure from the reaction chamber. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the method for manufacturing a reaction chamber comprises the steps of stretching the body of an elastic enclosure to define a working lumen S200; orienting a fuel insert within the working lumen S300; and, restituting the elastic enclosure over the insert S400.
  • This method preferably utilizes an elastic enclosure and a fuel insert.
  • the method preferably produces a reaction chamber with the elastic enclosure disposed substantially around the fuel insert, such that the elastic enclosure is in tension about the insert and applies a compressive force to the insert.
  • the reaction chamber is preferably used to contain and control a fuel-generating reaction, more preferably a hydrogen-generating reaction.
  • the elastic enclosure maintains contact between a liquid reagent delivery mechanism and a reaction zone, wherein the reaction zone is preferably the surface of the unreacted fuel insert.
  • the reaction chamber of the preferred embodiments provides a moving boundary interface (i.e. the elastic enclosure) that ensures constant contact between a solid fuel insert and the liquid delivery mechanism and/or the liquid reagent by bringing the liquid delivery mechanism and/or the liquid reagent in contact with the varying contour of the reacting surface of the fuel insert.
  • the elastic enclosure shrinks and maintains substantially continuous contact with the insert surface.
  • the assembled reaction chamber is preferably substantially similar to the reaction chamber disclosed in U.S. Application 12/460,794, filed July 23, 2009, incorporated herein by this reference.
  • the assembled reaction chamber may be any suitable elastic reaction chamber that may facilitate volume exchange with the reaction products and/or collector.
  • the method is preferably automated and performed by machinery using one or more machines, but may alternately be performed by hand, utilizing one or more assembly personnel.
  • the elastic enclosure 100 of the reaction chamber functions to apply a compressive force about substantially the whole of the fuel insert.
  • the elastic enclosure preferably comprises a substantially continuous body 140 that defines a lumen, and an opening portion 120 that defines the elastic enclosure opening.
  • the elastic enclosure preferably takes little to no deformation set, restituting to the original dimensions after long periods in a stretched position. Adequate restitution ability is desirable to allow substantially complete consumption of the fuel insert; without adequate restitution ability, the elastic enclosure eventually loses continuous contact with the fuel insert during operation, which may result in uncontrolled and incomplete reaction of the fuel insert.
  • the elastic enclosure preferably restitutes completely to its original dimensions after stretching, but may restitute to a size slightly larger or substantially larger than its original dimensions.
  • the elastic enclosure preferably includes a first and a second outlet defining an LDM inlet and a reaction product outlet, respectively, wherein the LDM inlet and reaction product outlet are preferably disposed near opposing ends of the fuel insert, but may alternatively be on the same end and be defined by the same elastic enclosure opening.
  • the elastic enclosure is preferably a formed membrane, more preferably a tube with a first and a second opening.
  • the tube diameter is preferably substantially constant throughout the tube length, but may vary (e.g. one opening has a larger diameter than the body, the body has a larger diameter that the openings, etc.).
  • the tube diameter is preferably smaller than the diameter and/or width of the fuel insert at any given point.
  • the tube length is preferably sized to encapsulate the entire length of the insert, but may alternatively be longer or shorter than the insert.
  • the tube is preferably cut to length before assembly, but may alternately be cut to length during assembly.
  • the elastic enclosure may alternatively have any suitable shape or form.
  • the elastic enclosure preferably comprises material that is inert, but may comprise material that resists degradation and/or reaction with the fuel insert material, liquid reagent, and reaction products.
  • the elastic enclosure is preferably made from silicone, latex, or any suitable elastomeric material, and may be additionally reinforced (e.g. with a metal layer, other polymeric materials, etc).
  • the elastic enclosure is made from platinum-cured silicone tubing such as SANI-TECH item number STHT-C-312-1F with a tensile strength of approximately 8.57 MPa and a tensile modulus of approximately 2.13 MPa.
  • the elastic enclosure is preferably extruded, but may alternately be formed, injection molded, dipped, or made using any suitable manufacturing method.
  • the fuel insert 200 functions to store fuel and to provide a reaction interface. This reaction interface is preferably along the surface of the fuel insert, and is preferably constantly changing as the insert is consumed by the reaction.
  • the fuel insert preferably forms fuel upon reaction with a liquid reagent, and preferably forms hydrogen gas but may alternatively form any suitable fuel (e.g. methane, butane, etc.).
  • the fuel insert preferably comprises a metal hydride fuel carrier, more preferably sodium borohydride (SBH) fuel carrier, but may alternately include lithium borohydride, alane, or any other suitable fuel carrier.
  • the fuel insert preferably comprises metal hydride powder compressed into a solid insert (e.g. pill), but may alternately comprise a solid block of metal hydride.
  • the fuel insert may alternatively be manufactured by injection molding, sintering, or any other suitable method of manufacturing a fuel insert.
  • the fuel insert preferably includes guide grooves, preferably a liquid delivery mechanism (LDM) guide groove and/or an alignment groove.
  • LDM guide groove functions to allow easy insertion and alignment of the LDM with the insert.
  • the alignment groove functions to align the fuel insert with other fuel inserts, the elastic enclosure and/or other components encapsulated within the elastic enclosure in the end product (e.g. exhaust nozzles, filters, etc.).
  • the guide grooves are preferably located on the exterior of the fuel insert, but may alternately be located on the interior. However, the fuel insert may alternately include other grooves or not include any grooves at all.
  • the fuel insert may additionally include any suitable alignment features.
  • the reaction chamber preferably includes one fuel insert, but may additionally include any number of fuel inserts of any composition.
  • the reaction chamber may additionally include a liquid delivery mechanism (LDM) 220 that functions to deliver a liquid reagent to the reaction zone.
  • the reaction zone is preferably the surface of the fuel insert, but may alternatively be on the interior of the fuel insert.
  • the LDM is preferably a flexible tube, but may alternatively comprise a nozzle, multiple tubes of different lengths, multiple tubes of the same length, multiple nozzles of different varieties, a combination of the above, or any other suitable liquid delivery mechanism.
  • the LDM is preferably the longer than the length of the fuel insert such that it covers the entirety of the fuel insert, but may alternately cover only a portion of the fuel insert, or be substantially shorter than the fuel insert.
  • the LDM may be any suitable configuration to deliver liquid reagent to the reaction zone.
  • the LDM is preferably substantially solid such that it does not leak, but may alternatively have holes or be porous along a section (e.g. the section proximal to the insert after assembly or the whole length).
  • the LDM is preferably flexible, but may be substantially rigid.
  • the LDM is preferably impervious to the liquid reagent, and preferably comprises ultra-high molecular weight polyethylene (UHMWPE), high-density polyethylene (HDPE), polypropylene, PTFE, PVDF, or any other suitable material.
  • the LDM may additionally include a distribution mechanism, such as wicking materials leading from the lumen of the LDM to the exterior to facilitate liquid reagent distribution, pores along the fuel insert-contacting length, side channels, or any other suitable distribution mechanism.
  • the reaction chamber preferably includes one LDM, but may alternatively include a plurality of LDMs of the same or of varying lengths.
  • the step of stretching the body of the elastic enclosure to define a working lumen S200 functions to achieve an elastic enclosure configuration that allows for easy fuel insert insertion.
  • the working lumen 160 is preferably formed from the elastic enclosure body interior, wherein the elastic enclosure body is stretched to a diameter and length that readily accepts the desired portion of the fuel insert (e.g. stretched to achieve dimensions larger than the fuel insert, stretched to a larger diameter than the insert, stretched to a longer length than the insert length or width, etc).
  • S200 may additionally include the step of halting and maintaining the working lumen configuration, wherein the stretching force is adjusted and/or maintained to retain the desired working lumen configuration.
  • the working lumen is achieved by pulling suction on the exterior of the elastic enclosure, and preferably uses a vacuum tube 300 coupled to a vacuum generator (suction generator), wherein the vacuum tube includes an opening through which the elastic enclosure is received into the vacuum tube lumen.
  • the vacuum tube is preferably substantially sealed except for the vacuum tube opening, and preferably has a substantially constant diameter throughout its length but may alternately have a variable diameter.
  • this embodiment preferably comprises the steps of placing the elastic enclosure body within the vacuum tube, wherein the elastic enclosure opening is left external the vacuum tube (S220); securing the elastic enclosure opening to the vacuum tube, wherein securing the elastic enclosure opening seals the vacuum tube opening about the elastic enclosure body (S230); and pulling suction within the vacuum tube to expand the elastic enclosure body (S240).
  • the step of placing the elastic enclosure body within the vacuum tube (S220) is preferably accomplished by orienting the elastic enclosure body within the vacuum tube lumen, wherein the elastic enclosure opening is left outside the vacuum tube, as shown in FIGURE 2A.
  • the elastic enclosure is preferably inserted into the vacuum tube from the top or the side, but the vacuum tube may be inverted over the elastic enclosure.
  • the elastic enclosure body is preferably sealed (i.e. the elastic enclosure opening is the only opening to the elastic enclosure lumen) prior to placement in the vacuum tube, but may alternately be sealed after placement.
  • the elastic enclosure body is preferably sealed by a knot, but may be sealed by clips, welding, adhering the opening edges together, or any other suitable method.
  • This step is preferably used when the elastic enclosure has more than one opening, for example, when the elastic enclosure is a tube. Alternatively, the elastic enclosure may be manufactured to have only one opening, wherein the step of elastic enclosure sealing is unnecessary.
  • the vacuum tube lumen is preferably lubricated prior to elastic enclosure placement, and is preferably lubricated with a non-reactive powder (e.g. baby powder, corn starch, talc, etc.), but may alternately be lubricated with a liquid.
  • the step of securing the elastic enclosure opening to the vacuum tube and sealing the vacuum tube opening about the elastic enclosure body S230 functions to seal the vacuum tube such that it can pull a vacuum, and to prevent the elastic enclosure from shifting while it is being stretched to create the working lumen.
  • This step S230 preferably results in the opening portion of the elastic enclosure (e.g. the portion of the elastic enclosure near the opening) folded over the vacuum tube opening, with the elastic enclosure body enclosed within the vacuum tube lumen, and the elastic enclosure opening wrapped about the vacuum tube exterior.
  • Step S230 may be accomplished using several different embodiments. Throughout these embodiments, the adhesive properties (e.g. tackiness) of the elastic enclosure material and the elasticity of the elastic enclosure (e.g.
  • the restitution force preferably secure the elastic enclosure position relative to the vacuum tube, but the elastic enclosure may be secured to the vacuum tube by mechanical means (e.g. clips, clamps, washers), by chemical means, or by any other suitable means.
  • the elastic enclosure is pre-folded S231 then transferred to the vacuum tube S233.
  • the elastic enclosure pre- folding occurs prior to the step of placing the elastic enclosure within a vacuum tube, and the step of transferring the folded elastic enclosure seals and secures the elastic enclosure to the vacuum tube opening.
  • the step of pre-folding the elastic enclosure is preferably accomplished by folding the elastic enclosure opening over the radially contracted fingers of a enclosure-stretching apparatus S231 and radially stretching the folded portion of the elastic enclosure incrementally until a working diameter (e.g. a diameter that can fit over the vacuum tube opening, preferably a diameter larger than the vacuum tube opening) is reached S232.
  • a working diameter e.g. a diameter that can fit over the vacuum tube opening, preferably a diameter larger than the vacuum tube opening
  • the step of folding the elastic enclosure opening over the fingers of an enclosure- stretching apparatus S231 preferably includes the sub-steps of installing the substantially unstretched elastic enclosure between the fingers of the enclosure- stretching apparatus, such that the fingers hold the body of the elastic enclosure and the opening portion (portion to be folded over the vacuum tube) is left free from the fingers (S23ia); and stretching the opening portion over the fingers, such that the fingers are disposed between the opening portion and the elastic enclosure body (S23ib).
  • the step of radially stretching the folded portion of the elastic enclosure incrementally to achieve a working diameter S232 is preferably accomplished by incrementally moving opposing pairs of fingers away from each other (e.g.
  • the step of transferring the folded elastic enclosure to the vacuum tube S233 preferably comprises the steps of orienting the vacuum tube opening within the fold (i.e. between the elastic enclosure body and opening portion) (8233a), and advancing the vacuum tube towards the fold, pushing the folded elastic enclosure off the enclosure-stretching apparatus and onto the vacuum tube opening (8233b).
  • the step of transferring the folded elastic enclosure to the vacuum tube S233 may include the steps of placing the vacuum tube opening inside the elastic enclosure lumen (such that the vacuum tube is inverted), sliding the elastic enclosure opening portion off the tube stretching apparatus fingers onto the vacuum tube, and inverting the elastic enclosure body into the vacuum tube lumen.
  • the folded elastic enclosure may be transferred onto the vacuum tube in any suitable orientation (e.g. sideways, etc) utilizing any suitable method.
  • the first embodiment of S230 may additionally include the sub-step of pre-stretching the elastic enclosure prior to installation in the tube stretching apparatus, wherein pre-stretching conditions the elastic enclosure to a desired elasticity.
  • Pre-stretching the elastic enclosure preferably includes pressurizing the elastic enclosure such that the elastic enclosure opening undergoes a slight plastic deformation to allow for easier folding over the fingers, but may alternately utilize any suitable pre-stretching method.
  • the elastic enclosure has a flared opening that is created and/or folded over the vacuum tube opening.
  • the flared opening is preferably the opening portion of the elastic enclosure (to be folded over the vacuum tube), and preferably flares to a larger diameter from the elastic enclosure body, wherein the larger diameter is preferably the working diameter (e.g. substantially close to or larger than the vacuum tube diameter), such that minimal additional stretching is required to fold the flared opening over the vacuum tube opening.
  • the elastic enclosure may be manufactured with an opening smaller than the working diameter, wherein a flared opening is created.
  • the flared opening is preferably created by placing the sealed elastic enclosure body within the vacuum tube lumen, while leaving the opening portion outside the vacuum tube S210; coupling the elastic enclosure opening to a positive pressure source (e.g.
  • the step of reducing pressure within the vacuum tube to expand the elastic enclosure body S240 functions to stretch the body of the elastic enclosure to define the desired working lumen. Since the elastic enclosure body is sealed within the vacuum tube lumen (by the seal formed by folding the opening portion over the vacuum tube opening edge), a suction within the vacuum tube lumen stretches the elastic enclosure body to define the working lumen because the exterior of the elastic enclosure body (within the vacuum tube lumen) experiences a lower pressure than the interior of the elastic enclosure body. S240 is preferably accomplished by coupling the vacuum tube lumen to a vacuum pump (e.g. suction generator) and removing a portion of the air from the vacuum tube (e.g. pulling a vacuum), but may alternately be accomplished by rapidly cooling the vacuum tube lumen, or by any suitable manner that reduces pressure within the vacuum tube lumen.
  • a vacuum pump e.g. suction generator
  • the working lumen is created by utilizing positive pressure within the elastic enclosure body ("positive pressure embodiment").
  • positive pressure embodiment an embodiment of the positive pressure embodiment
  • the fingers of a tube-stretching apparatus are inserted into the lumen of the elastic enclosure 8237a and incrementally radially expanded to achieve the desired working lumen 8237b.
  • the fingers are preferably inserted in the lumen to a depth substantially equal to the desired length of the working lumen, and the fingers are preferably expanded to form a substantially circular working lumen cross section of the working diameter, but may alternatively be expanded to form an ovular lumen cross section, a bean-shaped lumen cross section, or any suitable cross section.
  • the fingers of the enclosure-stretching apparatus are preferably strong enough to withstand deformation from the restitution force of the elastic enclosure.
  • the interior of the elastic enclosure is preferably pressurized and expanded to form the working lumen. This is preferably accomplished by fluidly coupling the elastic enclosure opening to a pressurized fluid source (e.g.
  • the pressurized fluid source is preferably compressed fluid that comprises compressed air (e.g. from a canister or from an air compressor), but may alternately comprise compressed liquid or any suitable fluid.
  • compressed fluid e.g. from a canister or from an air compressor
  • the positive pressure is then preferably maintained throughout the step of orienting the fuel insert within the working lumen S300.
  • the step of orienting the fuel insert within the working lumen S300 functions to ensure that the elastic enclosure restitutes over the insert in a desired configuration (shown in FIGURE 1). Furthermore, S300 may additionally ensure that other components placed within the working lumen are aligned properly relative to each other. As shown in FIGURE 7, S300 preferably includes the steps of maintaining the working lumen S310; positioning the fuel insert relative to the working lumen opening S320; and inserting a portion of the fuel insert into the working lumen S330.
  • the step of maintaining the working lumen S310 functions to keep the working lumen in the desired configuration, and is preferably accomplished by maintaining the stretching force on the elastic enclosure body (e.g. by maintaining the vacuum in the vacuum tube lumen).
  • the step of positioning the fuel insert S320 preferably readies the assembly for fuel insert insertion into the working lumen. This is preferably accomplished by approximately aligning the longitudinal axes of the fuel insert and the working lumen, but may alternately be accomplished in any suitable manner for any desired orientation.
  • the step of positioning the fuel insert S320 may additionally include the step of positioning additional components relative to the fuel insert.
  • the reaction chamber may include an exhaust nozzle that facilitates reaction product flow out of the reaction chamber, wherein the exhaust nozzle is coupled to the fuel insert within the elastic enclosure.
  • the exhaust nozzle is placed on one end of the fuel insert (preferably on top, wherein the fuel insert is standing on its end).
  • the step of positioning the fuel insert S320 may additionally utilize a guide 210, wherein the guide may be disposed on the interior of the working lumen and extracted later, be disposed on the fuel insert, or be disposed on the exterior of the elastic enclosure.
  • the guide preferably has or creates geometry that orients the fuel insert in the desired orientation, wherein the fuel insert has complimentary geometry to the guide.
  • the guide may additionally couple or align multiple components in a desired configuration. For example, if multiple fuel inserts are to be inserted into the elastic enclosure, the guide may be used along a side of the inserts to ensure relative position retention.
  • the guide is preferably an alignment rod, but may alternatively be alignment patterns, guide rails, a clip, or any other suitable guide.
  • the guide is preferably formed as an integral piece of the fuel insert or as an integral piece of the elastic enclosure, but may alternatively be a separate piece that couples to the elastic enclosure and/or fuel insert, wherein the separate guide is removed after fuel insert insertion into the working lumen or after elastic enclosure restitution.
  • the step of positioning the fuel insert S320 preferably includes the steps of orienting the fuel insert on end and inverting the working lumen over the fuel insert. However, the fuel insert may be positioned over the working lumen, wherein the working lumen opening faces upward, or be positioned to the side of the working lumen, wherein the working lumen opening faces the fuel insert.
  • the step of inserting a portion of the fuel insert into the working lumen S330 functions to control the longitudinal coverage of the elastic enclosure over the fuel insert.
  • the step of inserting a portion of the fuel insert into the working lumen S330 preferably includes advancing the fuel insert into the working lumen; and halting advancement when the desired depth is reached.
  • the fuel insert may be advanced by moving the fuel insert into the working lumen, by moving the working lumen over the fuel insert, or by advancing both the fuel insert and the working lumen toward each other.
  • the fuel insert is preferably advanced along one axis, wherein the other axes are held constant (e.g. no rotation), but may alternatively rotate as it is inserted into the working lumen.
  • the fuel insert orientation relative to the working lumen opening is preferably fixed in all axes of rotation and translation except for the axis of insertion.
  • Fuel insert insertion is preferably halted at a depth substantially near the desired longitudinal coverage distance, wherein the portion of the fuel insert to be encapsulated by the elastic enclosure is preferably inserted until the uninserted portion of the fuel insert has a length substantially equal to the combined length of the desired fuel insert external section and the opening portion of the elastic enclosure, wherein the opening portion of the elastic enclosure is unrolled/ unfolded to cover the fuel insert after restitution.
  • the fuel insert may alternatively be inserted any desired distance. For example, if the fuel insert is desired to be entirely encapsulated by the elastic enclosure (e.g. the desired longitudinal coverage distance is the entire length of the fuel insert), then the fuel insert is entirely inserted into the working lumen, and may be dropped in, pushed in, guided in, or any suitable manner of placing the entire fuel insert into the working lumen.
  • the step of restituting the elastic enclosure over the fuel insert S400 functions to create continuous contact between the elastic enclosure and the fuel insert, (shown in FIGURE 1).
  • S400 is preferably achieved by releasing the stretching force on the elastic enclosure body, and relying on the elasticity of the elastic enclosure to achieve restitution about the fuel insert.
  • S400 preferably includes the step of releasing the suction in the vacuum tube.
  • S400 preferably includes removing the pressure generation mechanism (e.g. contracting together and/or removing the enclosure-stretching apparatus fingers, releasing the pressure within the elastic enclosure interior).
  • this step may alternatively heat the elastic enclosure such that it shrinks about the fuel insert, cinch the elastic enclosure about the fuel insert with elastic bands, pull a vacuum on the fuel insert-elastic enclosure assembly, or utilize any other suitable method of restituting the elastic enclosure over the fuel insert.
  • S400 may additionally include the step of retaining the fuel insert position during restitution, which functions to achieve the desired fuel insert-elastic enclosure positioning after restitution. Because the elastic enclosure is compressing over the fuel insert during restitution, the inserted orientation (insertion distance, relative positioning of components, etc) may change. This step is preferably accomplished by holding the fuel insert in the desired position relative to the working lumen opening and possibly adjusting (e.g. pushing and/or pulling) the fuel insert position relative to the working lumen opening.
  • S400 may additionally include the step of unsealing the elastic enclosure openings, wherein the elastic enclosure opening seals are removed (e.g. cut off, undipped, untied, etc.).
  • the method of manufacturing a reaction chamber may additionally include the step of inserting a liquid delivery mechanism S500, which functions to create a fluid pathway between the exterior of the reaction chamber and the reaction zone within the reaction chamber through which liquid reagent can flow.
  • the outlet end (reaction end) of LDM is preferably inserted into the elastic enclosure through the elastic enclosure opening, and is preferably inserted along the fuel insert length such that the outlet end is substantially near the fuel insert end distal the elastic enclosure opening (i.e. the LDM is inserted such that it encompasses substantially the entire length of the fuel insert).
  • the LDM may be inserted through any other opening into the elastic enclosure.
  • the LDM may alternatively/ additionally be inserted such that it encompasses only a portion of the fuel insert (e.g. three-quarters, half, one- third, etc. of the fuel insert length), inserted from the side, or inserted in any suitable configuration.
  • the LDM is preferably inserted between the elastic enclosure and the fuel insert, more preferably within a groove or channel in the fuel insert (wherein the groove may also function as the guide groove), but may alternatively/ additionally be inserted into the fuel insert. If a portion of the fuel insert is left outside the elastic enclosure, the LDM is preferably inserted from the end with the uncovered fuel insert. In a first embodiment of S500, the LDM is inserted after restitution of the elastic enclosure (S400).
  • the first embodiment of step S500 preferably includes the steps of lifting the elastic enclosure away from the fuel insert S522; orienting the LDM S524; and inserting the LDM into the reaction chamber S526.
  • Lifting the elastic enclosure away from the fuel insert S522 functions to create a space for LDM insertion, and is preferably performed where the LDM is desired to be inserted.
  • S522 is preferably performed by inserting a lifting mechanism (e.g. a spatula, shim, rod, etc.) between the elastic enclosure and the fuel insert at the desired position and prying the elastic enclosure away from the fuel insert.
  • a lifting mechanism e.g. a spatula, shim, rod, etc.
  • any suitable method of creating an insertion space for the LDM may be utilized.
  • Orienting the LDM S524 functions to insert the LDM in the correct configuration relative to the reaction chamber.
  • the LDM is preferably oriented such that the outlet is inserted into the reaction chamber first, but may be oriented in any suitable configuration. Inserting the LDM into the reaction chamber S526 functions to achieve the desired LDM depth, placing the LDM outlet(s) in the desired position(s) relative to the fuel insert.
  • the LDM is preferably pushed in through the insertion space, but may alternatively be guided in, wherein a guide (e.g. fishing wire) is initially threaded through the desired LDM pathway and the LDM is threaded over the guide.
  • the LDM may alternatively be inserted using any other suitable method.
  • step S500 the LDM is inserted before restitution of the elastic enclosure over the fuel insert (S400).
  • the LDM is oriented to the desired configuration and position, inserted between the elastic enclosure and the fuel insert, and retained in its position relative to the fuel insert until elastic enclosure restitution.
  • the method of manufacturing a reaction chamber may additionally include sealing the elastic enclosure opening about the LDM S600.
  • This step functions to establish and maintain a fluid seal about the fuel insert and reaction zone, such that reagents and reaction products do not leak out from the LDM end, and to retain the LDM position.
  • This step is preferably used when the LDM inlet of the elastic enclosure is a separate opening from the reaction product outlet, but may be used when the LDM inlet uses the same elastic enclosure opening as the reaction product outlet.
  • S600 preferably accomplished by allowing restitution of the elastic enclosure about the LDM, compressing the LDM against the fuel insert, but may be accomplished by cinching and tightening the elastic enclosure opening over the LDM with a cinture placed over the elastic enclosure substantially near the elastic enclosure opening, by heating and shrinking the elastic enclosure about the LDM, by melting the elastic enclosure to the LDM, by applying a sealant to the gap between the LDM and elastic enclosure, or by any other suitable sealing method.
  • the method of manufacturing a reaction chamber may additionally include the step of trimming a portion of elastic enclosure from the reaction chamber S700. This step functions to control the size of the reaction chamber, to ensure adequate fuel insert retention within the elastic enclosure, and to achieve an adequate reaction product outlet.
  • Excess elastic enclosure e.g. elastic enclosure not contacting the fuel insert and/or LDM
  • the elastic enclosure may be trimmed (e.g. cut) to widen existing openings (e.g.
  • This step is preferably performed with a razor, but may alternately be performed by laser cutting, shearing, or any other suitable trimming method.
  • the method of manufacturing a reaction chamber may additionally include repeating any of the aforementioned steps, preferably at least S200, S300, and S400, for additional elastic enclosures, such that the fuel insert is encapsulated by two or more elastic enclosures.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une chambre de réaction comprenant un insert de carburant et une enceinte élastique pourvue d'un corps et d'une ouverture, le procédé comprenant les étapes consistant à étirer le corps de l'enceinte élastique pour définir une lumière de travail, à orienter l'insert en hydrure de métal au sein de la lumière de travail, et à restituer l'enceinte élastique sur l'insert.
PCT/US2011/045407 2010-07-26 2011-07-26 Procédé de fabrication d'une chambre de réaction pour un ensemble stockage de carburant Ceased WO2012018640A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40041210P 2010-07-26 2010-07-26
US61/400,412 2010-07-26

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WO2012018640A1 true WO2012018640A1 (fr) 2012-02-09

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PCT/US2011/045407 Ceased WO2012018640A1 (fr) 2010-07-26 2011-07-26 Procédé de fabrication d'une chambre de réaction pour un ensemble stockage de carburant

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US (1) US20120017439A1 (fr)
WO (1) WO2012018640A1 (fr)

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US9228267B1 (en) 2011-11-07 2016-01-05 Ardica Technologies, Inc. Use of fluidized-bed electrode reactors for alane production
US9327974B1 (en) 2011-11-07 2016-05-03 Ardica Technologies, Inc. Aluminum hydride production
US9676625B1 (en) 2011-11-07 2017-06-13 Ardica Technologies, Inc. Synthesis of microcrystalline alpha alane
US10233079B2 (en) 1999-06-16 2019-03-19 Ardica Technologies, Inc. Heating methods for aluminum hydride production
US10246785B2 (en) 2011-11-07 2019-04-02 Ardica Technologies, Inc. Use of fluidized-bed electrode reactors for alane production
US10435297B2 (en) 1999-06-16 2019-10-08 Ardica Technologies, Inc. Crystallization and stabilization in the synthesis of microcrystalline alpha alane

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US10233079B2 (en) 1999-06-16 2019-03-19 Ardica Technologies, Inc. Heating methods for aluminum hydride production
US10435297B2 (en) 1999-06-16 2019-10-08 Ardica Technologies, Inc. Crystallization and stabilization in the synthesis of microcrystalline alpha alane
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US10246785B2 (en) 2011-11-07 2019-04-02 Ardica Technologies, Inc. Use of fluidized-bed electrode reactors for alane production

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