EP1318276B1 - Bayonet type coupling for housing sections of a high pressure compressor for a gas turbine - Google Patents
Bayonet type coupling for housing sections of a high pressure compressor for a gas turbine Download PDFInfo
- Publication number
- EP1318276B1 EP1318276B1 EP02026024A EP02026024A EP1318276B1 EP 1318276 B1 EP1318276 B1 EP 1318276B1 EP 02026024 A EP02026024 A EP 02026024A EP 02026024 A EP02026024 A EP 02026024A EP 1318276 B1 EP1318276 B1 EP 1318276B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- ring
- type coupling
- pressure compressor
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/243—Flange connections; Bolting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/33—Retaining components in desired mutual position with a bayonet coupling
Definitions
- the invention relates to a bayonet connection for a ring housing for a high-pressure compressor of a gas turbine according to the preamble of the main claim.
- the invention relates to a ring housing, which comprises a plurality of axially spaced housing rings.
- US-A-4 630 994 which forms the closest prior art, discloses two housing rings arranged axially to each other which are suitable for a high-pressure compressor and which are connected to one another by means of a bayonet connection. Similar constructions are also shown in US-A-4,552,509 and US-A-3,939,651.
- the invention has for its object to provide a ring housing of the type mentioned, which avoids the disadvantages of the prior art with a simple structure and simple, cost-effective mountability.
- At least two adjacent housing rings are connected to one another by means of a bayonet connection.
- the ring housing according to the invention is characterized by a number of significant advantages.
- the housing ring is composed of individual ring segments.
- a rotational fixation of the bayonet connection and thus a safeguard against unintentional release takes place in a preferred embodiment of the invention by means of releasable radial connecting elements. These may be formed as bolts, screws or in a similar manner.
- At least one marking is attached to at least one housing ring. Consequently Accurate positioning of the housing parts (and the stator blade segments attachable thereto) is ensured prior to assembly.
- the bayonet connection comprises mutually facing, mutually braceable sealing surfaces.
- These sealing surfaces may have a trapezoidal or bevelled cross-section in a preferred embodiment of the invention. It is thus realized by the rotational fixation and tension of the individual parts of the ring housing at the same time a reliable seal, without the need for additional, additional components would be required.
- sealing surfaces are arranged radially on the outside of the annular housing.
- the ring housing inner housing of the high-pressure compressor
- the figures show a front housing ring 1 and a rear housing ring 2. These are connected to each other by means of a bayonet connection 3.
- the bayonet joint 3 comprises, as can be seen in particular from FIG. 1, against each other engagable trapezoidal elements 10, 11, each having beveled contact surfaces.
- the two housing rings are inserted into each other by means of the bayonet joints and rotated by a predetermined angle to each other.
- An anti-rotation and fixation by means of a plurality of connecting elements 12, which at the same time apply a radial force and lead to a correspondingly tight clamping of the trapezoidal elements 10, 11.
- the outer contour (see Fig. 4) has a relatively smooth outer surface which facilitates the supply of cooling air and the introduction of cooling air openings or the like.
- stator blade segments 8 are fastened by means of connecting elements 12 in the interior region of the rear housing ring 2.
- the Statorschaufelsegmente threaded inserts 13 in which, as shown in Fig. 1, bolts or screws can be screwed.
- plug-in elements 4 are formed on the front housing ring 1 and on the stator blade segments 8 (lugs or grooves) that prevent pre-fixing and unintentional twisting.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Gasket Seals (AREA)
Description
Die Erfindung bezieht sich auf eine Bajonettverbindung für ein Ringgehäuse für einen Hochdruckkompressor einer Gasturbine gemäß dem Oberbegriff des Hauptanspruchs.The invention relates to a bayonet connection for a ring housing for a high-pressure compressor of a gas turbine according to the preamble of the main claim.
Im Einzelnen bezieht sich die Erfindung auf ein Ringgehäuse, welches mehrere axial zueinander angeordnete Gehäuseringe umfasst.In detail, the invention relates to a ring housing, which comprises a plurality of axially spaced housing rings.
Aus dem Stand der Technik ist es bekannt, das Ringgehäuse bzw. dessen Gehäuseringe mittels axialer und/oder radialer Verschraubungen miteinander zu verbinden. Um die hohen Spaltmaßanforderungen zu erfüllen, sind dabei sehr komplexe Verbindungseinrichtungen erforderlich, die sich durch eine hohe Anzahl an einzelnen Bauelementen auszeichnen. Demgemäß ist der Zusammenbau sehr arbeitsintensiv und dementsprechend kostenaufwendig. Gleiches gilt für die Demontage, die zu Wartungszwecken oder Reparaturzwecken erforderlich ist. Auch die hohe Anzahl der zu verwendenden Einzelteile ist aus Kostengründen unerwünscht.From the prior art it is known to connect the ring housing or its housing rings by means of axial and / or radial screwing together. In order to meet the high Spaltmaßanforderungen, very complex connection devices are required, which are characterized by a large number of individual components. Accordingly, the assembly is very labor intensive and therefore expensive. The same applies to disassembly, which is required for maintenance or repair purposes. The high number of items to be used is undesirable for cost reasons.
Die den nächstkommenden Stand der Technik bildende US-A-4 630 994 offenbart zwei zueinander axial angeordnete Gehäuseringe, welche für einen Hochdruckkompressor geeignet sind und welche mittels einer Bajonettverbindung miteinander verbunden sind. Ähnliche Konstruktionen zeigen auch die US-A-4 552 509 und US-A-3 939 651.US-A-4 630 994, which forms the closest prior art, discloses two housing rings arranged axially to each other which are suitable for a high-pressure compressor and which are connected to one another by means of a bayonet connection. Similar constructions are also shown in US-A-4,552,509 and US-A-3,939,651.
Der Erfindung liegt die Aufgabe zugrunde, ein Ringgehäuse der eingangs genannten Art zu schaffen, welches bei einfachem Aufbau und einfacher, kostengünstiger Montierbarkeit die Nachteile des Standes der Technik vermeidet.The invention has for its object to provide a ring housing of the type mentioned, which avoids the disadvantages of the prior art with a simple structure and simple, cost-effective mountability.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Hauptanspruchs gelöst, die Unteransprüche zeigen weitere vorteilhafte Ausgestaltungen der Erfindung.According to the invention the object is solved by the features of the main claim, the subclaims show further advantageous embodiments of the invention.
Erfindungsgemäß ist somit vorgesehen, dass zumindest zwei benachbarte Gehäuseringe mittels einer Bajonettverbindung miteinander verbunden sind.According to the invention it is thus provided that at least two adjacent housing rings are connected to one another by means of a bayonet connection.
Das erfindungsgemäße Ringgehäuse zeichnet sich durch eine Reihe erheblicher Vorteile aus.The ring housing according to the invention is characterized by a number of significant advantages.
Die Verwendung einer Bajonettverbindung zum Verbinden zweier benachbarter Gehäuseringe weist zum einen den erheblichen Vorteil auf, dass die Montage sehr einfach ist. Es kann auf die große Anzahl an Verbindungselementen (Schrauben, Schraubenbolzen oder Ähnliches) verzichtet werden, die bei der nach dem Stand der Technik bekannten Konstruktion erforderlich sind.The use of a bayonet connection for connecting two adjacent housing rings, on the one hand, has the considerable advantage that the assembly is very simple. It can be dispensed with the large number of fasteners (screws, bolts or the like), which are required in the known prior art construction.
Weiterhin ist es möglich, mittels einer Bajonettverbindung ausreichend große Kräfte zu übertragen, so dass das Gehäuse mit einer ausreichenden Stabilität versehen sein kann.Furthermore, it is possible to transmit sufficiently large forces by means of a bayonet connection, so that the housing can be provided with sufficient stability.
Zudem ist es möglich, eine derartige Bajonettverbindung so auszugestalten, dass diese nach ihrer Befestigung spielfrei ist.In addition, it is possible to design such a bayonet connection so that it is free of play after its attachment.
In einer Ausgestaltung der Erfindung kann vorgesehen sein, dass der Gehäusering aus einzelnen Ringsegmenten zusammengesetzt ist.In one embodiment of the invention can be provided that the housing ring is composed of individual ring segments.
Auch diese lassen sich mit entsprechenden Bajonettverbindungen befestigen.These can also be fixed with appropriate bayonet connections.
Eine Drehfixierung der Bajonettverbindung und somit eine Sicherung gegen ein unbeabsichtigtes Lösen erfolgt in bevorzugter Ausgestaltung der Erfindung mittels lösbarer radialer Verbindungselemente. Diese können als Schraubenbolzen, Schrauben oder in ähnlicher Weise ausgebildet sein.A rotational fixation of the bayonet connection and thus a safeguard against unintentional release takes place in a preferred embodiment of the invention by means of releasable radial connecting elements. These may be formed as bolts, screws or in a similar manner.
Um ein passgenaues Zusammensetzen der einzelnen Gehäuseteile sicherzustellen, kann es günstig sein, wenn an zumindest einem Gehäusering zumindest eine Markierung angebracht ist. Somit wird eine genaue Positionierung der Gehäuseteile (und der daran befestigbaren Statorschaufelsegmente) vor der Montage sichergestellt.In order to ensure an accurate assembly of the individual housing parts, it may be advantageous if at least one marking is attached to at least one housing ring. Consequently Accurate positioning of the housing parts (and the stator blade segments attachable thereto) is ensured prior to assembly.
Als besonders vorteilhaft erweist es sich, wenn die Bajonettverbindung einander zugewandte, gegeneinander verspannbare Dichtflächen umfasst. Diese Dichtflächen können in bevorzugter Ausgestaltung der Erfindung einen trapezförmigen oder abgeschrägten Querschnitt aufweisen. Es wird somit durch die Drehfixierung und Verspannung der einzelnen Teile des Ringgehäuses zugleich auch eine zuverlässige Dichtung realisiert, ohne dass hierzu weitere, zusätzliche Bauelemente erforderlich wären.It proves to be particularly advantageous if the bayonet connection comprises mutually facing, mutually braceable sealing surfaces. These sealing surfaces may have a trapezoidal or bevelled cross-section in a preferred embodiment of the invention. It is thus realized by the rotational fixation and tension of the individual parts of the ring housing at the same time a reliable seal, without the need for additional, additional components would be required.
Besonders günstig ist es auch, wenn die Dichtflächen radial außenliegend an dem Ringgehäuse angeordnet sind. In Zusammenhang mit der Bajonettausgestaltung ist es möglich, eine kompakte Außenkontur des Ringgehäuses (inneres Gehäuse des Hochdruckkompressors) zu erzielen, welche eine günstigere Ausgestaltung von Kühlluftzuführungen oder Ähnlichem ermöglicht.It is also particularly favorable if the sealing surfaces are arranged radially on the outside of the annular housing. In connection with the bayonet design, it is possible to achieve a compact outer contour of the ring housing (inner housing of the high-pressure compressor), which allows a more favorable design of cooling air supply lines or the like.
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:
- Fig. 1
- eine Teil-Schnittansicht des Ringgehäuses mit zwei mittels einer Bajonettverbindung verbundenen Gehäuseringen,
- Fig. 2
- eine perspektivische, vereinfachte Darstellung des vorderen Gehäuseringes mit vormontierten Statorschaufelsegmenten,
- Fig. 3
- eine Schnittansicht, ähnlich Fig. 1, in einer geänderten Schnittdarstellung, und
- Fig. 4
- eine Teil-Seitenansicht der Außenkontur des erfindungsgemäßen Ringgehäuses.
- Fig. 1
- a partial sectional view of the ring housing with two connected by a bayonet connection housing rings,
- Fig. 2
- a perspective, simplified representation of the front housing ring with pre-assembled Statorschaufelsegmenten,
- Fig. 3
- a sectional view, similar to FIG. 1, in a modified sectional view, and
- Fig. 4
- a partial side view of the outer contour of the ring housing according to the invention.
In den Figuren des Ausführungsbeispiels ist jeweils nur ein Teilbereich des erfindungsgemäßen Ringgehäuses dargestellt, auf die Abbildung weiterer Details wurde verzichtet.In the figures of the embodiment, only a portion of the ring housing according to the invention is shown in each case, the illustration of further details has been omitted.
Die Figuren zeigen einen vorderen Gehäusering 1 sowie einen hinteren Gehäusering 2. Diese sind mittels einer Bajonettverbindung 3 miteinander verbunden. Die Bajonettverbindung 3 umfasst, wie insbesondere aus Fig. 1 ersichtlich ist, gegeneinander in Anlage bringbare trapezförmige Elemente 10, 11, die jeweils abgeschrägte Kontaktflächen aufweisen.The figures show a front housing ring 1 and a
Die beiden Gehäuseringe werden mittels der Bajonettverbindungen ineinander gesteckt und um einen vorgegebenen Winkelbetrag zueinander verdreht. Eine Drehsicherung und Fixierung erfolgt mittels einer Vielzahl von Verbindungselementen 12, die zugleich eine radiale Kraft aufbringen und zu einer entsprechend dichten Verspannung der Trapezelemente 10, 11 führen.The two housing rings are inserted into each other by means of the bayonet joints and rotated by a predetermined angle to each other. An anti-rotation and fixation by means of a plurality of connecting
Wie aus den Abbildungen ersichtlich, weist die Außenkontur (siehe Fig. 4) eine relativ glatte Außenfläche auf, die die Zuführung von Kühlluft sowie die Einbringung von Kühlluftöffnungen oder Ähnlichem erleichtert.As can be seen from the figures, the outer contour (see Fig. 4) has a relatively smooth outer surface which facilitates the supply of cooling air and the introduction of cooling air openings or the like.
Wie aus Fig. 1 ersichtlich ist, sind im Innenbereich des hinteren Gehäuserings 2 mehrere Statorschaufelsegmente 8 mittels Verbindungselementen 12 befestigt. Hierzu weisen die Statorschaufelsegmente Gewindeeinsätze 13 auf, in welche, wie in Fig. 1 gezeigt, Schraubenbolzen oder Schrauben einschraubbar sind. Um die Vor-Montage der Statorschaufelsegmente 8, zu erleichtern, sind an dem vorderen Gehäusering 1 sowie an den Statorschaufelsegmenten 8 Steckelemente 4 ausgebildet (Nasen bzw. Nuten), die eine Vorfixierung und ein unbeabsichtigtes Verdrehen verhindern.As can be seen from FIG. 1, a plurality of
Es ist somit festzustellen, dass die Bajonettverbindung, welche durch die Trapezelement 10, 11 gebildet wird, sowohl eine ausreichende Fixierung als auch eine gute Kraftübertragung und eine hervorragende Dichtwirkung gewährleistet.It is thus to be noted that the bayonet connection formed by the
Die Erfindung ist nicht auf das gezeigte Ausführungsbeispiel beschränkt, vielmehr ergeben sich im Rahmen der Erfindung vielfältige Abwandlungs- und Modifikationsmöglichkeiten.The invention is not limited to the embodiment shown, but rather arise within the scope of the invention varied modification and modification options.
- 11
- Gehäuseringhousing ring
- 22
- Gehäuseringhousing ring
- 33
- Bajonettverbindungbayonet connection
- 44
- Steckelementeplug-in elements
- 55
- 66
- 77
- 88th
- StatorschaufelsegmentStatorschaufelsegment
- 99
- 1010
- Trapezelementtrapezoidal element
- 1111
- Trapezelementtrapezoidal element
- 1212
- Verbindungselementconnecting element
- 1313
- Gewindeeinsatzthreaded insert
Claims (2)
- Annular casing for a high-pressure compressor of a gas turbine with several casing rings (1, 2) in axial arrangement, with at least two adjacent casing rings (1, 2) being connected by means of a bayonet-type coupling (3), these casing rings being ring segments, characterized in that an anti-rotation lock is provided by separable radial fasteners (12) and that the bayonet-type coupling (3) has sealing surfaces (10, 11) which face each other, are arranged radially outward on the annular casing, have a trapezoidal cross-section and tie with each other.
- Annular casing in accordance with Claim 1, characterized in that at least one marking is applied to the casing ring.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10159669 | 2001-12-05 | ||
DE10159669A DE10159669A1 (en) | 2001-12-05 | 2001-12-05 | Bayonet connection for a ring housing of a high pressure compressor of a gas turbine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1318276A2 EP1318276A2 (en) | 2003-06-11 |
EP1318276A3 EP1318276A3 (en) | 2005-02-09 |
EP1318276B1 true EP1318276B1 (en) | 2006-06-14 |
Family
ID=7708086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02026024A Expired - Fee Related EP1318276B1 (en) | 2001-12-05 | 2002-11-21 | Bayonet type coupling for housing sections of a high pressure compressor for a gas turbine |
Country Status (3)
Country | Link |
---|---|
US (1) | US20030102670A1 (en) |
EP (1) | EP1318276B1 (en) |
DE (2) | DE10159669A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2984428B1 (en) * | 2011-12-19 | 2018-12-07 | Safran Aircraft Engines | COMPRESSOR RECTIFIER FOR TURBOMACHINE. |
US9546571B2 (en) * | 2012-08-22 | 2017-01-17 | United Technologies Corporation | Mounting lug for connecting a vane to a turbine engine case |
US9598981B2 (en) * | 2013-11-22 | 2017-03-21 | Siemens Energy, Inc. | Industrial gas turbine exhaust system diffuser inlet lip |
JP6311118B2 (en) * | 2014-06-05 | 2018-04-18 | パナソニックIpマネジメント株式会社 | Blower case and blower provided with the same |
US20240182152A1 (en) * | 2021-04-30 | 2024-06-06 | Zipline International Inc. | Noise reducing nosecone for aircraft |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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US2377740A (en) * | 1944-03-31 | 1945-06-05 | Gen Electric | Centrifugal compressor |
GB1438195A (en) * | 1973-08-08 | 1976-06-03 | Penny Turbines Ltd Noel | Mounting for attaching a tubular member in co-axial registration with an aperture in a wall |
US4066129A (en) * | 1976-09-17 | 1978-01-03 | Central Sprinkler Corporation | Sprinkler head assembly |
US4344740A (en) * | 1979-09-28 | 1982-08-17 | United Technologies Corporation | Rotor assembly |
DE3003469C2 (en) * | 1980-01-31 | 1987-03-19 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Device for connecting rotationally symmetrically arranged components for turbomachines, in particular gas turbine engines, which are exposed to different thermal influences |
US4411399A (en) * | 1981-09-29 | 1983-10-25 | The Boeing Company | Retractable nozzle fairing system for aeroplane center boost engine |
DE3333436C1 (en) * | 1983-09-16 | 1985-02-14 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Device for the axial and circumferential securing of static housing components for flow machines |
FR2621554B1 (en) * | 1987-10-07 | 1990-01-05 | Snecma | NON-ROTATING INPUT COVER OF CENTRALLY FIXED TURBOREACTOR AND TURBOREACTOR THUS EQUIPPED |
US4911573A (en) * | 1987-12-24 | 1990-03-27 | Nuova Omec S.R.L. | Rigid axial retainer |
US5049770A (en) * | 1990-03-26 | 1991-09-17 | General Motors Corporation | Electric motor-driven impeller-type air pump |
US5288210A (en) * | 1991-10-30 | 1994-02-22 | General Electric Company | Turbine disk attachment system |
US5232340A (en) * | 1992-09-28 | 1993-08-03 | General Electric Company | Gas turbine engine stator assembly |
US5584577A (en) * | 1993-03-25 | 1996-12-17 | Whirlpool Corporation | Seal for a food blender |
US5537814A (en) * | 1994-09-28 | 1996-07-23 | General Electric Company | High pressure gas generator rotor tie rod system for gas turbine engine |
DE19515537A1 (en) * | 1995-04-27 | 1996-10-31 | Bmw Rolls Royce Gmbh | Head part of a gas turbine annular combustion chamber |
US6318728B1 (en) * | 1997-07-11 | 2001-11-20 | Demag Delaval Turbomachinery Corporation | Brush-seal designs for elastic fluid turbines |
US6139264A (en) * | 1998-12-07 | 2000-10-31 | General Electric Company | Compressor interstage seal |
US6250878B1 (en) * | 1999-09-24 | 2001-06-26 | General Electric Company | Method and assembly for connecting air ducts in gas turbine engines |
US6375421B1 (en) * | 2000-01-31 | 2002-04-23 | General Electric Company | Piggyback rotor blisk |
US6575703B2 (en) * | 2001-07-20 | 2003-06-10 | General Electric Company | Turbine disk side plate |
US20040136873A1 (en) * | 2003-01-09 | 2004-07-15 | Argonaut Technologies, Inc. | Modular reactor system |
-
2001
- 2001-12-05 DE DE10159669A patent/DE10159669A1/en not_active Withdrawn
-
2002
- 2002-11-21 DE DE50207188T patent/DE50207188D1/en not_active Expired - Lifetime
- 2002-11-21 EP EP02026024A patent/EP1318276B1/en not_active Expired - Fee Related
- 2002-12-04 US US10/309,236 patent/US20030102670A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE50207188D1 (en) | 2006-07-27 |
EP1318276A3 (en) | 2005-02-09 |
US20030102670A1 (en) | 2003-06-05 |
EP1318276A2 (en) | 2003-06-11 |
DE10159669A1 (en) | 2003-07-03 |
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