EP0765675A2 - Procédé et appareil d'amortissement d'une détonation dans un conteneur ou un système de tuyauterie - Google Patents

Procédé et appareil d'amortissement d'une détonation dans un conteneur ou un système de tuyauterie Download PDF

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Publication number
EP0765675A2
EP0765675A2 EP96115191A EP96115191A EP0765675A2 EP 0765675 A2 EP0765675 A2 EP 0765675A2 EP 96115191 A EP96115191 A EP 96115191A EP 96115191 A EP96115191 A EP 96115191A EP 0765675 A2 EP0765675 A2 EP 0765675A2
Authority
EP
European Patent Office
Prior art keywords
detonation
expansion space
main
flame
line
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.)
Granted
Application number
EP96115191A
Other languages
German (de)
English (en)
Other versions
EP0765675A3 (fr
EP0765675B1 (fr
Inventor
Helmut Prof. Dr.-Ing. Eichert
Frank Dipl.-Ing. Heinrich
Thomas Dipl.-Ing. Kratzel
Eberhard Dipl.-Ing. Pantow
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.)
Leinemann GmbH and Co KG
Original Assignee
DEUTSCHE FORSCHUNGSANSTALT fur LUFT- und RAUMFAHRTLEINEMANN GmbH and Co E V
Deutsches Zentrum fuer Luft und Raumfahrt eV
Leinemann GmbH and Co KG
Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR
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 DEUTSCHE FORSCHUNGSANSTALT fur LUFT- und RAUMFAHRTLEINEMANN GmbH and Co E V, Deutsches Zentrum fuer Luft und Raumfahrt eV, Leinemann GmbH and Co KG, Deutsche Forschungs und Versuchsanstalt fuer Luft und Raumfahrt eV DFVLR filed Critical DEUTSCHE FORSCHUNGSANSTALT fur LUFT- und RAUMFAHRTLEINEMANN GmbH and Co E V
Priority to SI9630302T priority Critical patent/SI0765675T1/xx
Publication of EP0765675A2 publication Critical patent/EP0765675A2/fr
Publication of EP0765675A3 publication Critical patent/EP0765675A3/fr
Application granted granted Critical
Publication of EP0765675B1 publication Critical patent/EP0765675B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes

Definitions

  • the invention relates to a method for weakening a detonation in a container or pipeline system, in which a starting detonation front is divided and brought together again in an expansion space.
  • the invention further relates to a device for weakening a detonation in a container or piping system with a wall arrangement lying in the propagation path of the detonation front for dividing and deflecting the detonation front and with an expansion space in which the split detonation front is brought together again.
  • the spread of an explosion of an ignitable gas mixture in a container or piping system can take place as detonation or as deflagration.
  • detonation the flame front and the shock front formed by the pressure wave of the explosion overlap, while in the case of deflagration, the shock waves of the flame front hurry ahead.
  • the flame propagation speed of deflagrations is around 100 m / sec. and the combustion pressures in the direction of impact at up to 10 bar (at an initial pressure of the mixtures of 1 bar), while in the case of detonations flame propagation speeds of several 1,000 m / sec. and pressures in the direction of impact of up to 100 bar can occur.
  • detonation brakes or “detonation bumpers” are therefore often combined with a flame arrester which has a large number of narrow and long gaps in which the flame is cooled to such an extent that it extinguishes.
  • a detonation protection consisting of a detonation brake and a flame arrester is known from DE-PS 1 192 980.
  • the detonation front propagating through a pipeline is divided in the known device by the convex outside of a circular cylindrical wall and reaches an expansion space with a larger volume than the pipeline.
  • the split detonation front can only run against the flame arrester, which is fastened in an outlet connection which is angled by 90 ° with respect to the pipeline in which the detonation originally spread, after several deflections.
  • the multiple deflections are required in that a second semicircular cylindrical wall with a smaller diameter is provided, the fine wall pieces pointing towards one another being arranged to overlap one another and thereby forming a kind of labyrinth.
  • the partial detonation fronts converging towards one another can trigger a post-detonation, especially if there are unfavorable mixture conditions. It is therefore necessary to dimension the flame arrester in such a way that it also has a reliable flame-extinguishing effect in this case.
  • the flame-extinguishing gaps in the flame arrester must be long enough and sufficiently narrow be, however, a relatively high pressure loss must be accepted for normal operation when flowing through the operating medium. In addition, the maintenance work is increased due to the narrow and long passage gaps.
  • the invention is therefore based on the object of specifying a method and a device by means of which the attenuation of a detonation in a container or pipeline system can be improved.
  • This object is achieved according to the invention with a method of the type mentioned at the outset in that the detonation front is divided into a main front and a secondary front, and the main front is led into the expansion space with a longer running time, so that when the main front enters the expansion space contains the combustion gases of the secondary front.
  • the solution according to the invention is based on the fact that a preferably smaller part of the detonation front is conducted as a side front into the expansion space and burns there, preferably in the form of a deflagration, so that the main front, when entering the expansion space, essentially finds exhaust gases, as a result of which the propagation of the detonation is hindered, so that it regularly disintegrates. This is ensured if the running time of the main front is dimensioned relative to the secondary front in such a way that the secondary front in the expansion space has already completely decayed when the main front enters the expansion space.
  • the method according to the invention can be used in all container or pipeline systems in order to destroy or at least attenuate detonations.
  • a combination is expediently used for connection points in other systems or in the outside area made with a conventional flame arrester, the improved effect of the detonation attenuation according to the invention means that the flame arrester must have fewer narrow and / or few long flame extinguishing gaps, so that the pressure drop caused by the flame arrester is reduced for the normal operating state.
  • the method according to the invention is particularly effective when the secondary front is directed into the outlet-side part of the expansion space, that is to say, for example, up to just before a flame arrester arranged there before it can enter the expansion space.
  • the resulting opposite burning of the side front and entry of the main front into the expansion chamber leads to an even better and safer weakening of the detonation.
  • a device of the type mentioned which functions according to the inventive method is characterized in that the wall arrangement forms a first conduction path for the main front and a second conduction path for the secondary front of the detonation front, the conduction paths being dimensioned such that the main front is delayed in relation to the secondary front enters the expansion space.
  • the total cross section of the first conduction path is preferably substantially larger, preferably at least four times as large as the total cross section of the second conduction path.
  • the second conduction path is formed in a preferred embodiment from at least one opening or at least one line section, the diameter of which is in each case below the critical diameter.
  • critical diameter is based on the knowledge that below a certain diameter of a line section the butt front and flame front can no longer advance together and are therefore separated. Explanations of the term "critical pipe diameter” can be found in the article by Lee, JHS Dynamic Parameters of Gaseous Detonations, Ann.Rev.Fluid.Mech. 16 (1984), pages 311 to 336.
  • the expansion space at the other end in terms of flow with respect to the wall arrangement can be closed off by a flame arrester with flame-extinguishing gaps.
  • the second conduction path allows the secondary front to pass directly into the expansion space essentially without deflection. This is particularly expedient if the flame diameter and the impact front are already separated by falling below the critical diameter, so that energy-consuming deflections for the secondary front are no longer necessary. Since the secondary front proceeds essentially without delay, the delay required for the main front is minimized.
  • the second conduction path can be formed by at least one opening in the wall arrangement lying in the direction of propagation of the detonation front.
  • the second conduction path is formed by at least one conduit section lying in the direction of propagation of the detonation front.
  • the line piece can expediently end shortly before the flame arrester in order to ensure that the flame of the flame of the secondary front burns off and the main front enters the expansion space. In the case of a flame arrester arranged in an angled pipe section, the line section is expediently bent accordingly.
  • the wall arrangement of the device according to the invention can have, in a manner known per se, a circular cylindrical wall section which divides and redirects the detonation front into two main fronts and which has at least one opening or a line piece for the passage of the secondary front.
  • the wall arrangement has a cup-shaped wall comprising a starting detonation front, in the bottom of which there is at least one opening or a line piece as a second line path for the passage of the secondary front, the first line path running on the outside of the cylindrical sections of the cup-shaped wall.
  • the device shown in FIGS. 1 and 2 has a housing 1 designed as an angle piece with a possible one Detonation on the input-side connection flange 2 and an output-side connection flange 3 which is angled by 90 °.
  • Both connecting flanges 2, 3 have walls 4, 5 which expand conically towards the interior of the housing 1.
  • a step 6 In the expanded part of the wall 5 of the outlet-side connecting flange 3 there is a step 6, on which a conventional flame arrester 7 is placed.
  • the flame arrester 7 is held in place with the aid of an insert 8 of the housing 1.
  • the insert 8 has an essentially circular-cylindrical wall 9, which is expanded by a transition piece 10 into a lower free edge 11 which bears against the flame arrester 7.
  • the circular-cylindrical wall 9 has a slot-shaped opening 12 on the side opposite the input-side flange 2 and is closed off on the side opposite the output-side connecting flange 3 by a flat plate 13.
  • the insert 8 is kept sealed in place by a cover 14 screwed onto the housing 1.
  • transition piece 10 there is an opening 15 in the vertical central plane of the inlet-side connection flange 2 with a diameter which is less than 1/4 of the diameter of the inlet-side connection flange 2 and an even much smaller part of the enlarged cross-section of the housing 1 in front of the circular cylindrical wall 9 occupies.
  • the circular cylindrical wall 9 also has radial reinforcing ribs 16 in the area opposite the input bottle 2 to the side of the opening 12, which extend radially to the height of the free edge 11.
  • a detonation front entering through the inlet-side connecting flange 2 of the housing 1 reaches the circular-cylindrical wall 9 and is divided there. Because of the symmetry of the arrangement, two main fronts are formed, which run around the circular cylindrical wall 9 and the reinforcing ribs 16 and through the opening 12 into the interior space forming an expansion space 17 enter the circular cylindrical wall 9. The main fronts thus reach the expansion space 17 and the flame arrester 7 via the first conduction path described.
  • a small part of the approaching detonation front passes through the opening 15 as a side front and arrives directly into the expansion space 17, precisely in front of the flame arrester 7.
  • the opening 15 thus forms a second conduit path on which a side front of the detonation front enters the expansion space 17 .
  • the secondary front Since the main fronts have to travel a longer way into the expansion space 17 than the secondary front via the first conduit, the secondary front reaches the expansion space 17 before the main fronts.
  • the secondary front disintegrates in the expansion space 17 and burns off as a deflagration.
  • the main fronts enter the expansion space it is thus - at least partially, preferably completely - filled with exhaust gases, so that the main fronts in the expansion space 17 no longer find any combustible gases or only a small amount thereof and cannot absorb sufficient energy for reproduction.
  • the main fronts therefore also disintegrate in the expansion space 17 before they reach the flame arrester 7.
  • the flame arrester 7 therefore only needs to be designed for the much less dangerous deflagrations, and can therefore have significantly less narrow and / or less long gaps. As a result, a lower flow resistance is formed and maintenance of the flame arrester 7 is facilitated.
  • the insert 8 ' also forms the cover 14 of the longitudinal housing 1, and the circular cylindrical wall 9' has a diameter which corresponds to the outer diameter of the flame arrester 7.
  • a further circular-cylindrical wall section 18 is aligned with the opening 12 on the side opposite the input-side connecting flange, which is arranged concentrically to the circular-cylindrical wall 9 ', but with a smaller diameter.
  • An opening 19 of the circular-cylindrical wall section 18 points to the inlet-side connecting flange 2, so that the partial main fronts formed by the circular-cylindrical wall 9 'pass through a labyrinth formed by the opening 12, 19 into the expansion space 17' above the flame arrester 7.
  • the inlet-side connection flange 2 In the axis of the inlet-side connection flange 2 is located in the circular cylindrical wall 9 'in the expansion space 17' protruding pipe section 20 which, with a diameter below the critical pipe diameter, guides a side front without deflection into the expansion space 17 ', while the main front is deflected several times and get into the expansion space 17 'with a delay.
  • the line piece 20 ' is angled downward in relation to the second exemplary embodiment in FIGS. 3 and 4 in order to introduce the secondary front into the expansion space 17' in a larger one closer to the flame arrester 7.
  • the circular cylindrical wall 9 ′′ is designed as a semicircular section.
  • the second circular cylindrical wall section 18 is provided with radial ribs 16 ', which together with the ends of the circular wall section 9' 'form inlet openings 12', which are located laterally on the wall arrangement and together with the opening 19 cause the multiple deflections of the main fronts.
  • the insert 8 ′′ like in the first exemplary embodiment, is fastened to a separate cover 14.
  • a housing 21 has an input-side connecting flange 22 and an output-side connecting flange 23 lying in a common axis.
  • the input-side connecting flange 22 opens into the interior of the housing 21 with a cylindrical tube piece 24 and is overlapped there by a cup-shaped wall 25.
  • the cup-shaped wall 25 consists of a cylindrical jacket wall 26 and a base 27 that bulges away from the inlet-side connection flange 22.
  • annular gaps 28, 29 are formed which form a labyrinth for a detonation front entering the cup-shaped wall 25, which emerges from the cup-shaped wall 25 via the inner annular gap 28 reflects reflected and after deflection through 180 ° through the outer annular gap 29 into an expansion chamber 30 which is closed by a flame arrester 7.
  • the flame arrester 7 is inserted between two parts of the housing 21 which are closed off as fastening flanges 31 and clamped by screwing the fastening flanges 31, the part of the housing 21 which does not contain the expansion space 30 merely containing the taper on the outlet-side connecting flange 23.
  • the secondary front is passed through an opening 32 in the axis of the input-side connecting flange 22 into the expansion space 30 without deflection.
  • FIG. 8 which essentially corresponds to the embodiment shown in FIG. 7, a plurality of openings 32 are arranged in the bottom 27 of the cup-shaped wall 25 symmetrically to the axis of the input-side connecting flange 22, of which 3 opening 32 in the vertical cutting axis are seen.
  • FIG. 9 corresponds to the exemplary embodiment shown in FIG. 7, with the difference that instead of the opening 32, a line piece 32 ′ is provided, through which the secondary front is introduced into the expansion space 30 in closer proximity to the flame arrester 7.
  • All of the exemplary embodiments shown permit an effective weakening or termination of the detonation and therefore a low load on the flame arresters 7 provided in these exemplary embodiments.

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  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Pipeline Systems (AREA)
  • Cleaning In General (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Vibration Dampers (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Frying-Pans Or Fryers (AREA)
  • Incineration Of Waste (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP96115191A 1995-09-29 1996-09-21 Procédé et appareil d'amortissement d'une détonation dans un conteneur ou un système de tuyauterie Expired - Lifetime EP0765675B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630302T SI0765675T1 (en) 1995-09-29 1996-09-21 Method and apparatus for damping a detonation in a container or a pipework system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19536292 1995-09-29
DE19536292A DE19536292C2 (de) 1995-09-29 1995-09-29 Verfahren und Vorrichtung zum Abschwächen einer Detonation in einem Behälter- bzw. Rohrleitungssystem

Publications (3)

Publication Number Publication Date
EP0765675A2 true EP0765675A2 (fr) 1997-04-02
EP0765675A3 EP0765675A3 (fr) 1998-03-11
EP0765675B1 EP0765675B1 (fr) 2001-08-29

Family

ID=7773557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115191A Expired - Lifetime EP0765675B1 (fr) 1995-09-29 1996-09-21 Procédé et appareil d'amortissement d'une détonation dans un conteneur ou un système de tuyauterie

Country Status (17)

Country Link
US (1) US5905227A (fr)
EP (1) EP0765675B1 (fr)
JP (1) JP3926872B2 (fr)
KR (1) KR100416203B1 (fr)
AT (1) ATE204775T1 (fr)
BR (1) BR9603917A (fr)
CA (1) CA2186652C (fr)
CZ (1) CZ289601B6 (fr)
DE (2) DE19536292C2 (fr)
DK (1) DK0765675T3 (fr)
ES (1) ES2161952T3 (fr)
HU (1) HU216519B (fr)
NO (1) NO313958B1 (fr)
PL (1) PL181114B1 (fr)
SI (1) SI0765675T1 (fr)
SK (1) SK283144B6 (fr)
TW (1) TW342444B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8047036B2 (en) 2005-06-03 2011-11-01 Magna International Inc. Device and method for explosion forming
US8252210B2 (en) 2006-08-11 2012-08-28 Cosma Engineering Europe Ag Method and device for explosion forming
US8250892B2 (en) 2006-12-01 2012-08-28 Cosma Engineering Europe Ag Closure device for explosion forming
US8322175B2 (en) 2006-12-20 2012-12-04 Cosma Engineering Europe Ag Workpiece and method for explosion forming
US8650921B2 (en) 2006-08-11 2014-02-18 Cosma Engineering Europe Ag Method and device for explosion forming
US8713982B2 (en) 2008-01-31 2014-05-06 Magna International Inc. Device for explosive forming
US8875553B2 (en) 2007-02-14 2014-11-04 Cosma Engineering Europe Ag Method and mould arrangement for explosion forming
US8939743B2 (en) 2007-08-02 2015-01-27 Cosma Engineering Europe Ag Device for supplying a fluid for explosion forming
US9393606B2 (en) 2007-05-22 2016-07-19 Cosma Engineering Europe Ag Ignition device for explosive forming

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818572C1 (de) * 1998-04-25 1999-11-11 Leinemann Gmbh & Co Verfahren zum Unschädlichmachen einer Detonationsfront und Detonationssicherung
DE19957837C2 (de) * 1999-11-25 2001-11-15 Rmg Gaselan Regel & Mestechnik Verfahren und Vorrichtung zum Dämpfen des Druckstoßes an Flammensperren bei Detonationen
DE19957836B4 (de) 1999-11-25 2004-05-27 RMG - Gaselan Regel + Meßtechnik GmbH Verfahren und Vorrichtung zum Dämpfen des Druckstoßes an Flammensperren bei Detonationen
US20120279197A1 (en) * 2007-12-04 2012-11-08 Firestar Engineering, Llc Nitrous oxide flame barrier
CN102940942A (zh) * 2012-10-29 2013-02-27 大连理工大学 一种吸波减震波纹阻火抑爆装置
EP3099382B1 (fr) 2014-01-28 2023-09-06 Elmac Technologies Limited Arrête-flammes
GB201707857D0 (en) * 2017-05-16 2017-06-28 Elmac Tech Ltd Valve apparatus
CN110594435B (zh) * 2019-09-06 2021-07-23 宁波方太厨具有限公司 一种用于吸油烟机的防火阀

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE937879C (de) 1954-04-09 1956-01-19 Wilke Werke Ag Vorrichtung zur Sicherung feuergefaehrlicher Fluessigkeiten und Gase gegen anlaufende Explosionen
DE1192980B (de) 1963-05-27 1965-05-13 Leinemann Co Flammenfilter Vorrichtung zur Sicherung von Behaeltern fuer feuergefaehrliche Fluessigkeiten und Gase

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DE483509C (de) * 1929-10-02 Dampfkessel Und Gasometerfabri Vorrichtung zur Sicherung von Behaeltern oder Rohrleitungen fuer feuergefaehrliche Fluessigkeiten gegen Feuer und anlaufende Explosionen
US1504824A (en) * 1921-04-30 1924-08-12 Kruskopf Hermann Method of and means for extinguishing or smothering explosions in mines
DE934574C (de) * 1954-01-29 1955-10-27 Wilke Werke Ag Vorrichtung zur Sicherung feuergefaehrlicher Fluessigkeiten und Gase gegen anlaufende Explosionen
DE1020274B (de) * 1956-06-07 1957-11-28 Leinemann Co Flammenfilter Explosionssicheres Atmungsorgan fuer Behaelter, Apparate und Leitungen zur Lagerung, Verarbeitung und zum Transport feuergefaehrlicher Fluessigkeiten und Gase
US3814016A (en) * 1973-03-22 1974-06-04 Burlington Industries Inc Bomb suppression device
US4537133A (en) * 1983-03-31 1985-08-27 The United States Of America As Represented By The Secretary Of The Interior Non-incendive rock-breaking explosive charge
CA1311409C (fr) * 1988-12-23 1992-12-15 Nicholas Roussakis Pare-flamme muni d'un dispositif attenuant les detonations
JPH05296438A (ja) * 1992-04-16 1993-11-09 Kobe Steel Ltd 爆轟抑止器
US5386779A (en) * 1992-08-14 1995-02-07 Wilfred Baker Engineering, Inc. Passive air blast attenuators and ventilators
US5364127A (en) * 1993-06-11 1994-11-15 Trw Inc. Inflator assembly

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
DE937879C (de) 1954-04-09 1956-01-19 Wilke Werke Ag Vorrichtung zur Sicherung feuergefaehrlicher Fluessigkeiten und Gase gegen anlaufende Explosionen
DE1192980B (de) 1963-05-27 1965-05-13 Leinemann Co Flammenfilter Vorrichtung zur Sicherung von Behaeltern fuer feuergefaehrliche Fluessigkeiten und Gase

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8047036B2 (en) 2005-06-03 2011-11-01 Magna International Inc. Device and method for explosion forming
US8252210B2 (en) 2006-08-11 2012-08-28 Cosma Engineering Europe Ag Method and device for explosion forming
US8650921B2 (en) 2006-08-11 2014-02-18 Cosma Engineering Europe Ag Method and device for explosion forming
US8250892B2 (en) 2006-12-01 2012-08-28 Cosma Engineering Europe Ag Closure device for explosion forming
US8322175B2 (en) 2006-12-20 2012-12-04 Cosma Engineering Europe Ag Workpiece and method for explosion forming
US8875553B2 (en) 2007-02-14 2014-11-04 Cosma Engineering Europe Ag Method and mould arrangement for explosion forming
US9393606B2 (en) 2007-05-22 2016-07-19 Cosma Engineering Europe Ag Ignition device for explosive forming
US8939743B2 (en) 2007-08-02 2015-01-27 Cosma Engineering Europe Ag Device for supplying a fluid for explosion forming
US8713982B2 (en) 2008-01-31 2014-05-06 Magna International Inc. Device for explosive forming

Also Published As

Publication number Publication date
CZ280396A3 (en) 1997-04-16
JPH09170750A (ja) 1997-06-30
HUP9602644A2 (en) 1997-06-30
CA2186652C (fr) 2005-04-19
SK122096A3 (en) 1997-08-06
DE19536292C2 (de) 1997-09-25
HU216519B (hu) 1999-07-28
HU9602644D0 (en) 1996-11-28
NO964116D0 (no) 1996-09-27
EP0765675A3 (fr) 1998-03-11
DE59607572D1 (de) 2001-10-04
DK0765675T3 (da) 2001-10-08
US5905227A (en) 1999-05-18
ES2161952T3 (es) 2001-12-16
KR970016264A (ko) 1997-04-28
TW342444B (en) 1998-10-11
PL181114B1 (pl) 2001-05-31
NO964116L (no) 1997-04-01
ATE204775T1 (de) 2001-09-15
HUP9602644A3 (en) 1997-09-29
JP3926872B2 (ja) 2007-06-06
NO313958B1 (no) 2003-01-06
SK283144B6 (sk) 2003-03-04
PL316334A1 (en) 1997-04-01
KR100416203B1 (ko) 2004-05-17
CZ289601B6 (cs) 2002-03-13
DE19536292A1 (de) 1997-04-17
SI0765675T1 (en) 2001-12-31
EP0765675B1 (fr) 2001-08-29
BR9603917A (pt) 1998-06-09
CA2186652A1 (fr) 1997-03-30

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