DE19616838A1 - Brennkammer mit Schwitzkühlung - Google Patents
Brennkammer mit SchwitzkühlungInfo
- Publication number
- DE19616838A1 DE19616838A1 DE19616838A DE19616838A DE19616838A1 DE 19616838 A1 DE19616838 A1 DE 19616838A1 DE 19616838 A DE19616838 A DE 19616838A DE 19616838 A DE19616838 A DE 19616838A DE 19616838 A1 DE19616838 A1 DE 19616838A1
- Authority
- DE
- Germany
- Prior art keywords
- chamber
- porous wall
- wall
- chamber according
- porous
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000001704 evaporation Methods 0.000 title abstract 2
- 230000008020 evaporation Effects 0.000 title abstract 2
- 238000009826 distribution Methods 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 14
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 239000012809 cooling fluid Substances 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 210000004243 sweat Anatomy 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000000110 cooling liquid Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- 239000003380 propellant Substances 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000009792 diffusion process Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000004663 powder metallurgy Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 238000005098 hot rolling Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 4
- 230000035900 sweating Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/97—Rocket nozzles
- F02K9/972—Fluid cooling arrangements for nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
- F02K9/62—Combustion or thrust chambers
- F02K9/64—Combustion or thrust chambers having cooling arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/202—Heat transfer, e.g. cooling by film cooling
-
- 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
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/203—Heat transfer, e.g. cooling by transpiration cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0077—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for tempering, e.g. with cooling or heating circuits for temperature control of elements
- F28D2021/0078—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for tempering, e.g. with cooling or heating circuits for temperature control of elements in the form of cooling walls
-
- 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
- Y10T29/49346—Rocket or jet 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
- Y10T29/49826—Assembling or joining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Dispersion Chemistry (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Powder Metallurgy (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
Claims (24)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9505058 | 1995-04-27 | ||
| FR9505058A FR2733581B1 (fr) | 1995-04-27 | 1995-04-27 | Enceinte de combustion avec refroidissement par transpiration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE19616838A1 true DE19616838A1 (de) | 1996-10-31 |
| DE19616838B4 DE19616838B4 (de) | 2010-06-10 |
Family
ID=9478501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19616838A Expired - Lifetime DE19616838B4 (de) | 1995-04-27 | 1996-04-26 | Brennkammer mit Schwitzkühlung |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US5732883A (de) |
| JP (1) | JPH08327050A (de) |
| DE (1) | DE19616838B4 (de) |
| FR (1) | FR2733581B1 (de) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999004156A1 (de) * | 1997-07-17 | 1999-01-28 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Brennkammer und verfahren zur herstellung einer brennkammer |
| WO2000042309A1 (de) | 1999-01-18 | 2000-07-20 | Daimlerchrysler Ag | Brennkammer mit transpirationskühlung |
| DE10237381A1 (de) * | 2002-08-12 | 2004-02-26 | Astrium Gmbh | Brennkammerstruktur und Verfahren zu deren Herstellung |
| DE10126923B4 (de) * | 2001-06-01 | 2006-11-23 | Eads Space Transportation Gmbh | Raketentriebwerk mit Trennung von Innenmantel und Außenmantel |
| DE10037776B4 (de) * | 1999-08-20 | 2009-03-12 | Eads Deutschland Gmbh | Brennkammer für ein Flüssigkeitsraketentriebwerk |
| DE102009025457A1 (de) * | 2009-06-15 | 2010-12-16 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Kühlvorrichtung für eine Effusions- oder Transpirationskühlung |
| DE102010041089A1 (de) * | 2010-09-21 | 2012-03-22 | Siemens Aktiengesellschaft | Fluid-Direkt-Kühlung der inneren Reaktionsraumwand eines Flugstromvergasers mittels Injektion in poröse Wand |
| DE102007048527B4 (de) * | 2007-10-10 | 2014-03-27 | Bayern-Chemie Gesellschaft Für Flugchemische Antriebe Mbh | Schubtriebwerk |
| WO2019149870A1 (de) * | 2018-02-01 | 2019-08-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Brennkammervorrichtung, fahrzeug und verfahren zum betreiben einer brennkammervorrichtung |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752972B1 (en) * | 2000-05-10 | 2004-06-22 | Essox Research And Development, Inc. | Plasma processing method and apparatus |
| US6606851B1 (en) | 2000-09-08 | 2003-08-19 | Joseph Roger Herdy, Jr. | Transpiration cooling of rocket engines |
| US6478535B1 (en) | 2001-05-04 | 2002-11-12 | Honeywell International, Inc. | Thin wall cooling system |
| FR2836699B1 (fr) * | 2002-03-04 | 2005-02-11 | Eads Launch Vehicles | Moteur de fusee |
| US6832471B2 (en) * | 2003-03-12 | 2004-12-21 | Aerojet-General Corporation | Expander cycle rocket engine with staged combustion and heat exchange |
| US7213392B2 (en) * | 2003-06-10 | 2007-05-08 | United Technologies Corporation | Rocket engine combustion chamber |
| FR2963063B1 (fr) | 2010-07-26 | 2015-11-27 | Snecma | Chambre de combustion munie d'un element tubulaire |
| CN110425572B (zh) * | 2019-07-23 | 2021-02-19 | 哈尔滨工业大学 | 用于超声速飞行器冲压发动机的多孔单柱状燃料供给结构 |
| CN111237087B (zh) * | 2020-01-19 | 2024-03-22 | 西北工业大学 | 一种航天动力用微孔板主被动复合冷却结构及冷却方法 |
| DE102021120637A1 (de) * | 2021-08-09 | 2023-02-09 | Arianegroup Gmbh | Raketentriebwerksabschnitt mit porösem Innenwandteil und Verfahren zum Herstellen eines Raketentriebwerksabschnitts |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1085719B (de) * | 1944-12-04 | 1960-07-21 | Dr Eberhard Schneller | Raketenantrieb und -ausbildung |
| US2654997A (en) * | 1952-02-23 | 1953-10-13 | Esther C Goddard | Two-liquid combustion chamber for rocket apparatus |
| US2689453A (en) * | 1952-12-11 | 1954-09-21 | Esther C Goddard | Tangential sheet cooling of internal-combustion chambers |
| US2857657A (en) * | 1956-01-16 | 1958-10-28 | California Inst Res Found | Method of constructing a porous wall |
| US3188801A (en) * | 1961-09-29 | 1965-06-15 | Gen Motors Corp | Cooled nozzle construction |
| US3153320A (en) * | 1962-11-08 | 1964-10-20 | Gen Motors Corp | Cooled rocket nozzle design |
| US3863443A (en) * | 1963-10-25 | 1975-02-04 | United Aircraft Corp | High pressure rocket and cooling means |
| US3439503A (en) * | 1966-01-25 | 1969-04-22 | North American Rockwell | Rocket engine cooling |
| US3353359A (en) * | 1966-01-26 | 1967-11-21 | James E Webb | Multislot film cooled pyrolytic graphite rocket nozzle |
| DE1273907B (de) * | 1966-10-27 | 1968-07-25 | Boelkow Gmbh | Thermisch hochbeanspruchte Bauteile, wie Raketenbrennkammern, mit Schwitzkuehlung und Verfahren zu deren Herstellung |
| US3585800A (en) * | 1967-07-27 | 1971-06-22 | Aerojet General Co | Transpiration-cooled devices |
| US3910039A (en) * | 1972-09-14 | 1975-10-07 | Nasa | Rocket chamber and method of making |
| US3832290A (en) * | 1972-09-14 | 1974-08-27 | Nasa | Method of electroforming a rocket chamber |
| DE2246075A1 (de) * | 1972-09-20 | 1974-04-11 | Maschf Augsburg Nuernberg Ag | Waermetauscher, insbesondere raketenbrennkammer mit schubduese und diesbezuegliches herstellungsverfahren |
| JPS6082602A (ja) * | 1983-10-07 | 1985-05-10 | Natl Aerospace Lab | ロケツト燃焼器外筒製作法 |
| JPH0659502B2 (ja) * | 1987-03-26 | 1994-08-10 | 宇宙科学研究所長 | ロケット用高圧燃焼器の燃焼室及びその製造方法 |
| FR2669966B1 (fr) * | 1990-11-30 | 1993-03-26 | Europ Propulsion | Procede de fabrication de paroi de chambre de combustion, notamment pour moteur-fusee, et chambre de combustion obtenue par ce procede. |
| FR2691209B1 (fr) * | 1992-05-18 | 1995-09-01 | Europ Propulsion | Enceinte contenant des gaz chauds refroidie par transpiration, notamment chambre propulsive de moteur-fusee, et procede de fabrication. |
| US5477613A (en) * | 1993-12-21 | 1995-12-26 | United Technologies Corporation | Method of simultaneously forming rocket thrust chamber cooling tubes |
| US5546656A (en) * | 1994-11-30 | 1996-08-20 | United Technologies Corporation | Fabrication of rocket thrust chambers |
-
1995
- 1995-04-27 FR FR9505058A patent/FR2733581B1/fr not_active Expired - Lifetime
-
1996
- 1996-04-25 US US08/637,441 patent/US5732883A/en not_active Expired - Lifetime
- 1996-04-26 JP JP8107547A patent/JPH08327050A/ja active Pending
- 1996-04-26 DE DE19616838A patent/DE19616838B4/de not_active Expired - Lifetime
-
1997
- 1997-12-22 US US08/995,307 patent/US5903976A/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6151887A (en) * | 1997-07-17 | 2000-11-28 | Deutsches Zentrum Fuer Luft- Und Raumfahrt E.V. | Combustion chamber for rocket engine |
| WO1999004156A1 (de) * | 1997-07-17 | 1999-01-28 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Brennkammer und verfahren zur herstellung einer brennkammer |
| DE19901424B4 (de) * | 1999-01-18 | 2009-09-10 | Astrium Gmbh | Brennkammer mit Transpirationskühlung |
| DE19901424A1 (de) * | 1999-01-18 | 2000-07-27 | Daimler Chrysler Ag | Brennkammer mit Transpirationskühlung |
| WO2000042309A1 (de) | 1999-01-18 | 2000-07-20 | Daimlerchrysler Ag | Brennkammer mit transpirationskühlung |
| DE10037776B4 (de) * | 1999-08-20 | 2009-03-12 | Eads Deutschland Gmbh | Brennkammer für ein Flüssigkeitsraketentriebwerk |
| DE10126923B4 (de) * | 2001-06-01 | 2006-11-23 | Eads Space Transportation Gmbh | Raketentriebwerk mit Trennung von Innenmantel und Außenmantel |
| DE10237381A1 (de) * | 2002-08-12 | 2004-02-26 | Astrium Gmbh | Brennkammerstruktur und Verfahren zu deren Herstellung |
| US6889496B2 (en) | 2002-08-12 | 2005-05-10 | Eads Space Transportation Gmbh | Combustion chamber structure and its manufacturing process |
| DE10237381B4 (de) * | 2002-08-12 | 2005-06-23 | Eads Space Transportation Gmbh | Brennkammerstruktur und Verfahren zu deren Herstellung |
| DE102007048527B4 (de) * | 2007-10-10 | 2014-03-27 | Bayern-Chemie Gesellschaft Für Flugchemische Antriebe Mbh | Schubtriebwerk |
| DE102009025457A1 (de) * | 2009-06-15 | 2010-12-16 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Kühlvorrichtung für eine Effusions- oder Transpirationskühlung |
| DE102010041089A1 (de) * | 2010-09-21 | 2012-03-22 | Siemens Aktiengesellschaft | Fluid-Direkt-Kühlung der inneren Reaktionsraumwand eines Flugstromvergasers mittels Injektion in poröse Wand |
| DE102010041089B4 (de) * | 2010-09-21 | 2013-06-27 | Siemens Aktiengesellschaft | Fluid-Direkt-Kühlung der inneren Reaktionsraumwand eines Flugstromvergasers mittels Injektion in poröse Wand |
| WO2019149870A1 (de) * | 2018-02-01 | 2019-08-08 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Brennkammervorrichtung, fahrzeug und verfahren zum betreiben einer brennkammervorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08327050A (ja) | 1996-12-10 |
| FR2733581B1 (fr) | 1997-07-18 |
| DE19616838B4 (de) | 2010-06-10 |
| FR2733581A1 (fr) | 1996-10-31 |
| US5732883A (en) | 1998-03-31 |
| US5903976A (en) | 1999-05-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MO |
|
| 8110 | Request for examination paragraph 44 | ||
| 8364 | No opposition during term of opposition | ||
| R082 | Change of representative |
Representative=s name: BEETZ & PARTNER PATENT- UND RECHTSANWAELTE, DE |
|
| R081 | Change of applicant/patentee |
Owner name: SNECMA, FR Free format text: FORMER OWNER: SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION, PARIS, FR Effective date: 20130320 |
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| R082 | Change of representative |
Representative=s name: BEETZ & PARTNER MBB PATENT- UND RECHTSANWAELTE, DE Effective date: 20130320 Representative=s name: BEETZ & PARTNER MBB, DE Effective date: 20130320 Representative=s name: BEETZ & PARTNER MBB PATENTANWAELTE, DE Effective date: 20130320 Representative=s name: BEETZ & PARTNER PATENT- UND RECHTSANWAELTE, DE Effective date: 20130320 |
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| R071 | Expiry of right |