EP1748248B1 - Réservoir de carburant - Google Patents

Réservoir de carburant Download PDF

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Publication number
EP1748248B1
EP1748248B1 EP06006914.3A EP06006914A EP1748248B1 EP 1748248 B1 EP1748248 B1 EP 1748248B1 EP 06006914 A EP06006914 A EP 06006914A EP 1748248 B1 EP1748248 B1 EP 1748248B1
Authority
EP
European Patent Office
Prior art keywords
tank
fuel
outlet
propellant gas
fuel tank
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.)
Active
Application number
EP06006914.3A
Other languages
German (de)
English (en)
Other versions
EP1748248A2 (fr
EP1748248A3 (fr
Inventor
Kei Philipp Dr. Behruzi
Mark Dr. Michaelis
Gaston Dr. Netter
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.)
ArianeGroup GmbH
Original Assignee
ArianeGroup GmbH
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 ArianeGroup GmbH filed Critical ArianeGroup GmbH
Publication of EP1748248A2 publication Critical patent/EP1748248A2/fr
Publication of EP1748248A3 publication Critical patent/EP1748248A3/fr
Application granted granted Critical
Publication of EP1748248B1 publication Critical patent/EP1748248B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/008—Details of vessels or of the filling or discharging of vessels for use under microgravity conditions
    • 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
    • F17C3/00—Vessels not under pressure
    • F17C3/12—Vessels not under pressure with provision for protection against corrosion, e.g. due to gaseous acid
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0128—Shape spherical or elliptical
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • F17C2221/017—Helium
    • 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
    • F17C2221/08—Ergols, e.g. hydrazine
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/013—Single phase liquid
    • 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
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0192—Propulsion of the fluid by using a working fluid
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/027—Making transfer independent of vessel orientation
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/053—Reducing corrosion
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/056—Improving fluid characteristics
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0194—Applications for fluid transport or storage in the air or in space for use under microgravity conditions, e.g. space
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space
    • F17C2270/0197—Rockets
    • 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
    • Y10T137/2931—Diverse fluid containing pressure systems
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86348—Tank with internally extending flow guide, pipe or conduit

Definitions

  • the invention relates to a fuel tank, in particular a tank for storing aggressive liquids for the operation of spacecraft, with serving as a pumping medium propellant gas and at least one fuel sampling device consisting of at least one collecting container and a tank outlet, in which exploiting the surface tension, a separation of the fuel is brought from the propellant gas, wherein the removal device is arranged in the form of a refillable reservoir at the bottom of the fuel tank and connected via delivery lines to the interior of the fuel tank.
  • liquid propellants are used both for the engines that serve the attitude control in space, as well as for engines to perform the apogee maneuver carried in suitable containers and from these usually using a propellant gas be promoted into the combustion or reaction chambers of the corresponding engines.
  • propellants usually inert gases such as helium (He) or nitrogen (N 2 ) are used, which are pressed under pressure into the fuel tank and thereby press the fuel into the respective engine leading piping system.
  • He helium
  • N 2 nitrogen
  • US 4 595 398A discloses a fuel delivery device to be located in the area of a tank outlet.
  • the device should on the one hand ensure a uniform supply of fuel even with changing accelerations and on the other effect an effective discharge of gas and steam.
  • a standard way to separate liquids and gases is to use sieves that block the flow of gases up to a certain pressure difference.
  • these comparatively expensive screens may be dispensed with under certain circumstances.
  • a special and frequent requirement for such tanks is also the possibility of horizontal transport of the already filled fuel tank, integrated in the satellite, to the launch site, especially if no restrictions on the Tankstrullgrades are desired. Due to dynamic effects, the forces occurring during transport can exceed a multiple of the forces due to earth gravity. In the hitherto known tanks of this type, therefore, either the tank filling level is limited to smaller degrees of filling, so that the tank outlet is always surrounded by liquid, or the tank outlet is limited by a very narrow channel, but generates relatively high pressure losses during fuel extraction. The maximum allowable pressure losses are usually specified.
  • the object of the invention is to provide a tank according to the preamble in such a way that the fuel is kept stable even after a temporary horizontal orientation and low Tankstrullgrad in the fuel line and that thus always a bubble-free filling or refilling of the tank located in the tank is guaranteed ,
  • the invention solves this problem in that the tank outlet is provided with bores which connect an outlet pipe to the collecting container and which is provided with grooves in the region opposite the bores.
  • the manufacturing cost of the tank according to the invention are practically not increased over those of conventional tanks, so that at a constant cost, a considerable increase in flexibility in terms of handling on the ground and during rocket launches can be achieved.
  • the fuel tank according to the invention at the same time set so that it allows a safe and bubble-free promotion without screens.
  • the interior of the collecting container is formed at an acute angle with respect to a plane perpendicular to the symmetry axis of the tank.
  • fuel tank is a surface voltage tank for receiving and storage of aggressive storable fuels, such as MMH, N 2 O 4 and hydrazine, with a arranged on the tank bottom fuel sampling device, in which a separation of the fuel from the propellant gas is brought about by utilizing the surface tension.
  • baffles 1 are guided along the tank wall 2 and open into a sump 3 at the bottom of the fuel tank.
  • the fuel from this container 3 can be expelled by a propellant gas to a combustion or reaction chamber, not shown in the drawing.
  • propellant gas the inert gases helium (He) or nitrogen (N 2 ) are usually used, which press the fuel into the leading to the respective engine, not shown in the figure, piping system.
  • propellant gas the inert gases helium (He) or nitrogen (N 2 ) are usually used, which press the fuel into the leading to the respective engine, not shown in the figure, piping system.
  • the lower part 9 of the collecting container 3 is carried out at the tank outlet 4 as a rotating part, whereby in particular the manufacturing cost can be kept low.
  • a centrally located outlet pipe 10 connect three channels 11 with a diameter of about 2 mm on one side the interior 12 of the collecting container with the outlet pipe 10. Filling in the horizontal state is also possible if the connecting channels 11 against the acceleration of gravity upwards are directed.
  • the connection or opening channels 11 in the tank outlet are arranged inclined so that during the initial filling of the tank with fuel no propellant bubbles are trapped.
  • the interior of the collecting container 12 is formed in its geometry at an acute angle 15 with respect to a plane perpendicular to the axis of symmetry or longitudinal axis 13 of the tank, so as to extend both from the horizontal to the vertical position, e.g. after a horizontal transport with low tank filling levels, as well as in weightless condition due to the capillary action again completely and bubble-free fills.
  • the rapid filling is additionally supported by unilaterally cut grooves 14, so that it fills under weightlessness very quickly due to the acting capillary forces.
  • the configuration of the collecting container interior 12 with the acute angle 15 the filling process under the capillary pumping action is considerably improved.
  • a filling of the tank with fuel is usually carried out with vertically aligned tank, ie, the longitudinal axis 13 of the tank in this case runs parallel to the direction of earth gravity, the entire tank outlet 4 and the reservoir 3 are completely filled with fuel. If the fuel tank is subsequently tilted about the tank transverse axis such that the three openings 11 are aligned counter to the acting acceleration, the tank can be transported horizontally even at low tank filling levels.
  • the filled fuel tank according to Fig. 1 for subsequent transport, integrated, for example, in a satellite, stored horizontally to the launch site.
  • the tank outlet 4 of the filled Tanks is oriented perpendicular to the direction of the indicated in the figure with an arrow acceleration of gravity g, so that the fuel 5, especially at low levels, no longer wets the outlet 4, but its level at a distance h below this outlet 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Claims (2)

  1. Réservoir à carburant, en particulier réservoir de stockage de liquide corrosif servant à faire fonctionner des corps aéronautiques, comportant un gaz propulseur servant de fluide de transport et au moins un dispositif de prélèvement de carburant composé d'au moins un réservoir collecteur et d'une sortie de réservoir, dans lequel, en tirant parti de la tension de surface, on provoque une séparation du carburant et du gaz propulseur, le dispositif de prélèvement étant disposé sous forme d'un réservoir rechargeable au fond du réservoir à carburant et étant relié par des conduites de transport à l'intérieur du réservoir à carburant, la sortie du réservoir étant pourvue de trous (11) qui relient un tuyau de sortie (10) au réservoir collecteur (3), caractérisé en ce que la zone opposée au trou (11) est pourvue de rainures (14) .
  2. Réservoir à carburant selon la revendication 1, caractérisé en ce que l'intérieur du réservoir collecteur (12) a une conformation décrivant un angle aigu (15) par rapport à un plan positionné verticalement par rapport à l'axe de symétrie (13) du réservoir.
EP06006914.3A 2005-07-28 2006-03-31 Réservoir de carburant Active EP1748248B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510035356 DE102005035356B3 (de) 2005-07-28 2005-07-28 Treibstofftank

Publications (3)

Publication Number Publication Date
EP1748248A2 EP1748248A2 (fr) 2007-01-31
EP1748248A3 EP1748248A3 (fr) 2017-04-19
EP1748248B1 true EP1748248B1 (fr) 2018-07-04

Family

ID=36587363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06006914.3A Active EP1748248B1 (fr) 2005-07-28 2006-03-31 Réservoir de carburant

Country Status (6)

Country Link
US (1) US7395832B2 (fr)
EP (1) EP1748248B1 (fr)
JP (1) JP4585994B2 (fr)
CN (1) CN100507293C (fr)
BR (1) BRPI0601953B1 (fr)
DE (1) DE102005035356B3 (fr)

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DE102005044534B3 (de) * 2005-09-17 2007-06-06 Astrium Gmbh Treibstofftank für kryogene Flüssigkeiten
DE102005062092B3 (de) * 2005-12-22 2007-03-29 Eads Space Transportation Gmbh Treibstofftank
DE102007005539B3 (de) * 2007-02-03 2008-08-14 Astrium Gmbh Tank zur Lagerung kryogener Flüssigkeiten oder lagerfähiger flüssiger Treibstoffe
US7559509B1 (en) * 2007-02-12 2009-07-14 Thomas C. Taylor Large cryogenic tank logistics for in-space vehicles
US8899974B2 (en) * 2007-09-19 2014-12-02 The Aerospace Corporation Particulate mitigating propellant management tank device
DE102008026320B3 (de) * 2008-06-03 2009-12-03 Astrium Gmbh Tank zur Lagerung kryogener Flüssigkeiten und lagerfähiger Treibstoffe
DE102009019002B3 (de) * 2009-04-16 2010-11-25 Astrium Gmbh Blasenfalle für Treibstofftanks in Raumflugkörpern
US8245889B1 (en) 2009-11-03 2012-08-21 Jon Starns Portable pumpless fuel delivery system
US8534489B2 (en) 2011-03-21 2013-09-17 Hamilton Sundstrand Space Systems International, Inc. Demisable fuel supply system
US8511504B2 (en) 2011-03-21 2013-08-20 Hamilton Sundstrand Corporation Demisable fuel supply system
US10479532B2 (en) * 2015-05-07 2019-11-19 Keystone Engineering Company Stress relieved welds in positive expulsion fuel tanks with rolling metal diaphragms
US11092111B1 (en) 2018-12-10 2021-08-17 United Launch Alliance, L.L.C. Vapor retention device

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Also Published As

Publication number Publication date
EP1748248A2 (fr) 2007-01-31
CN100507293C (zh) 2009-07-01
CN1903660A (zh) 2007-01-31
BRPI0601953A (pt) 2007-03-13
BRPI0601953B1 (pt) 2018-01-23
JP2007030874A (ja) 2007-02-08
EP1748248A3 (fr) 2017-04-19
JP4585994B2 (ja) 2010-11-24
US7395832B2 (en) 2008-07-08
DE102005035356B3 (de) 2006-10-19
US20070084509A1 (en) 2007-04-19

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