EP1571650A1 - Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung - Google Patents
Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung Download PDFInfo
- Publication number
- EP1571650A1 EP1571650A1 EP04090083A EP04090083A EP1571650A1 EP 1571650 A1 EP1571650 A1 EP 1571650A1 EP 04090083 A EP04090083 A EP 04090083A EP 04090083 A EP04090083 A EP 04090083A EP 1571650 A1 EP1571650 A1 EP 1571650A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- sound
- obstacles
- arrangement according
- vortex
- 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
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/321—Physical
- G10K2210/3212—Actuator details, e.g. composition or microstructure
Definitions
- the invention relates to an arrangement for the production of Sound fields of certain modal composition as simulated Sound source for acoustic examinations, in particular for simulation of rotor-stator arrangements generated by turbomachinery sound or as a counter-field for active noise reduction.
- the invention is based on the object, an arrangement to generate sound fields of particular modal content, also referred to below as a mode generator, for use as a simulated sound source for scientific-technical Examinations or as a counter-sound field to indicate active noise reduction, the is simple and low cost can be manufactured and operated.
- a mode generator for use as a simulated sound source for scientific-technical Examinations or as a counter-sound field to indicate active noise reduction
- the basic idea of the invention exists in other words in the provision of a mode generator comprising a from a flowable medium, in particular a gas, flowed through flow channel with trained in this Contains flow obstacles.
- the flow obstacles are shaped so that from this vortex from the flowing Medium are replaced.
- the shape and size of the flow obstacles and the flow rate in the Flow channel are chosen so that a certain detachment frequency the vortex is not fallen below.
- the number and spatial arrangement of the flow obstacles adjusted so that one through the entirety of the detached Eddy conditionally, periodically and periodically spatially changing pressure field is generated. This Pressure field excites a sound field of certain modal composition synchronizing this to the vortex shedding reacts.
- the so formed by feedback Resonant circuit in which the vortex shedding frequency in the range the resonant frequency of the sound field to be excited is, represents a sound wave.
- the vortex shedding frequency in the range the resonant frequency of the sound field to be excited is, represents a sound wave.
- the drawing are in a flow channel 1 at whose inner circumference arranged distributed at regular intervals
- Flow obstacles according to the figures 1 to 3 arranged in the form of only in a cross-sectional plane, perpendicular from the channel inner wall abstrebenden, continuous rectangular bars 10 of equal length with rounded Edges, provided. That is, the flow obstacles 2 can be used to generate different modal Sound fields also have other cross-sectional shapes, further extend into the channel interior or closer the channel wall or, as in Figures 4 to 8 represented, be arranged on supports in the channel or as well as in the channel wall molded recesses (not represented). In particular, the cross-sectional shape the flow obstacles 2 for training of the sound field in the flow channel 1 of importance.
- the flow obstacles 2 in one and the same flow channel 1 also different be educated.
- the arrangement and number the flow obstacles 2 variable. That is, the Flow obstacles can be single or in a larger one Number also in two or more cross-sectional planes the flow channel 1, and also offset from one another be arranged (each not shown).
- the flow channel 1 is in the direction of arrow 3 of a flowable medium, here a gas flows through.
- a gas flows through.
- Fig. 9 The mechanism of action of the sound field generator described above (aero-acoustic mode generator) for conversion the flow energy of the medium in acoustic Energy of a flow in the direction of and against Flow direction of propagating sound field is based of Fig. 9 described as follows: Due to the flow solve the flow obstacle 2 periodically vortex 5 and 6, which are downstream of the flow obstruction 2 form a vortex street 7. The removal frequency the vortex 5, 6 depends on the flow velocity and the shape and size of the respective flow obstacle 2 off. As a result of the periodic vortex shedding generated alternating pressures produce sounds that at and above a certain frequency (cut-on frequency, Resonant frequency) in the flow channel 1 propagate can.
- This frequency depends on the channel geometry (Cross-sectional shape, dimensions), of the flow velocity and the gas temperature.
- the by the periodic Vortex shedding generated sounds form in the Flow channel 1 an acoustic pressure field 8, that is, a modal sound field or at least one acoustic sound field Mode with in the circumferential direction and / or radial direction, variable amplitude, synchronous to the flow obstacle 2 and the periodic detachment from this the vortex reacts (feedback loop according to arrow 9).
- the acoustic mode shapes the frequency of vortex shedding and phase on and through the synchronous feedback of the Modes on vortex formation form a high sound pressure level out, who is capable of certain noise levels in technical installations, for example in one Rotor-stator arrangement, to simulate or even - out of phase - for the active noise reduction of an existing one Sound pressure level can be used.
- the for the sound energy required becomes the energy deprived of the flowing medium, however, is the energy deprivation negligible small and without influence on the effect of the technical device to be examined, e.g. a rotor-stator assembly of a turbomachine.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht einer erfindungsgemäßen Vorrichtung zur Erzeugung modaler Schallfelder (aero-akustischer Modengenerator);
- Fig. 2
- die Vorrichtung nach Fig. 1 in einem Längsschnitt;
- Fig. 3
- eine perspektivische Darstellung der Vorrichtung nach Fig. 1;
- Fig. 4
- eine Seitenansicht einer anderen Ausführungsform einer Vorrichtung zur Erzeugung modaler Schallfelder;
- Fig. 5
- die Vorrichtung nach Fig. 4 in einem Längsschnitt;
- Fig. 6
- eine perspektivische Darstellung eines Strömungshindernisses gemäß der Ausführungsform nach Fig. 4;
- Fig. 7
- eine Schnittansicht der Stützstange des Strömungshindernisses nach Fig. 6;
- Fig. 8
- eine Schnittansicht des eine Wirbelablösung bewirkenden Strömungshindernisses nach Fig. 6; und
- Fig. 9
- eine Darstellung des Wirkprinzips der Vorrichtung zur Erzeugung modaler Schallfelder.
- 1
- Strömungskanal
- 2
- Strömungshindernis
- 3
- Strömungsrichtung, Strömungsenergieflusss
- 4
- Schallausbreitungsrichtung, akustischer Energiefluss
- 5
- abgelöste Wirbel
- 6
- abgelöste Wirbel
- 7
- Wirbelstraße, aerodynamische Schallquelle
- 8
- Akust. Mode, modales Schallfeld, Druckfeld
- 9
- Feedback Loop, Rückkopplung zw. 8 und 2
- 10
- Stege mit gleichbleibendem Profil
- 11
- Stege mit mehreren Ablöseabschnitten
- 11a
- Stützstange
- 11b
- Wirbelablöseabschnitt
Claims (8)
- Anordnung zur Erzeugung von Schallfeldern bestimmter modaler Zusammensetzung als simulierte Schallquelle für akustische Untersuchungen, insbesondere zur Simulation des von Rotor-Stator-Anordnungen von Turbomaschinen erzeugten Schalls, oder als Gegenschallfeld zur aktiven Schallminderung, gekennzeichnet durch einen von einem fließfähigen Medium durchströmten Strömungskanal (1) mit mindestens einem in diesem vorgesehenen Strömungshindernis (2) zur periodischen Ablösung von Wirbeln (5, 6) mit einer bestimmten Ablösefrequenz in Abhängigkeit von der Form und Größe der Strömungshindernisse (2) und von der Strömungsgeschwindigkeit, wobei die Anzahl und räumliche Anordnung der Strömungshindernisse (2) so gewählt ist, dass ein durch die Gesamtheit der abgelösten Wirbel bedingtes sich periodisch räumlich und zeitlich veränderndes Druckfeld zur Anregung eines Schallfeldes (8) bestimmten modalen Inhalts erzeugt wird, das auf die Wirbelablösung synchronisierend zurückwirkt, und ein so gebildeter Resonanzkreis, bei dem die Wirbelablösefrequenz im Bereich der Resonanzfrequenz des anzuregenden Schallfeldes ist, die Schallquelle darstellt.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass mehrere Strömungshindernisse (2) in einer oder mehreren Querschnittsebene(n) des Strömungskanals (1) sowohl in Umfangsrichtung als auch in Strömungsrichtung in regelmäßigem oder unregelmäßigem Abstand angeordnet sind.
- Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass die Strömungshindernisse (2) von der Innenwand des Strömungskanals abstrebende Stege (10, 11) mit einer Profilierung sind, die eine periodische Ablösung von Wirbeln (5 und 6) zur Ausbildung einer Wirbelstraße (7) und von Tönen sowie der entsprechenden akustischen Moden (8) gewährleistet.
- Anordnung nach Anspruch 3, dadurch gekennzeichnet, dass die Stege (11) aus einer Stützstange (11a) mit einem oder mehreren Wirbelablöseabschnitt(en) (11b), die im Abstand von der Innenwand des Strömungskanals (1) und/oder im Abstand voneinander angeordnet sind, bestehen, wobei die Stützstange so profiliert ist, dass an dieser keine oder eine vernachlässigbare Wirbelablösung erfolgt.
- Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass die Strömungshindernisse (2) in die Innenwand des Strömungskanals (1) eingeformte Kavitäten sind.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass das Strömungsmedium ein kaltes oder ein heißes Gas ist.
- Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass zur Steuerung der Phasenlage der Wirbelablösung an den Strömungshindernissen Mittel zur Schwingungsanregung vorgesehen sind.
- Anwendung nach einem der Ansprüche 1 bis 4 und 7, dadurch gekennzeichnet, dass die Strömungshindernisse (2) in mehreren Achsen verstellbar ausgebildet sind.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502004009480T DE502004009480D1 (de) | 2004-03-03 | 2004-03-03 | Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung |
EP04090083A EP1571650B1 (de) | 2004-03-03 | 2004-03-03 | Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung |
US11/068,980 US7516815B2 (en) | 2004-03-03 | 2005-03-02 | Arrangement for the generation of sonic fields of a specific modal composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04090083A EP1571650B1 (de) | 2004-03-03 | 2004-03-03 | Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1571650A1 true EP1571650A1 (de) | 2005-09-07 |
EP1571650B1 EP1571650B1 (de) | 2009-05-13 |
Family
ID=34746054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04090083A Expired - Fee Related EP1571650B1 (de) | 2004-03-03 | 2004-03-03 | Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7516815B2 (de) |
EP (1) | EP1571650B1 (de) |
DE (1) | DE502004009480D1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8506300B2 (en) * | 2003-07-25 | 2013-08-13 | Spetstekhnika | Flight simulator |
US7717229B2 (en) * | 2008-05-09 | 2010-05-18 | Siemens Energy, Inc. | Gas turbine exhaust sound suppressor and associated methods |
WO2010056984A2 (en) * | 2008-11-14 | 2010-05-20 | The Regents Of The University Of Michigan | Acoustical fluid control mechanism |
US20140212265A1 (en) * | 2013-01-30 | 2014-07-31 | Robert A. Putnam | Gas turbine inlet silencer |
US10722990B2 (en) | 2016-09-15 | 2020-07-28 | General Electric Company | Method for installing and removing modularized silencer baffles |
CN108278158B (zh) * | 2017-01-06 | 2022-05-13 | 通用电气公司 | 用于改进的入口消音挡板的***和方法 |
CN108278157B (zh) | 2017-01-06 | 2022-08-02 | 通用电气公司 | 用于改进的入口消音挡板的***和方法 |
US11227575B2 (en) * | 2018-08-10 | 2022-01-18 | Dell Products, L.P. | Aerodynamic acoustic resonator to dissipate energy from air movers |
CN113179465B (zh) * | 2021-04-15 | 2022-08-19 | 上海交通大学 | 一种管道高阶声模态发生装置及控制方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2514129A (en) * | 1947-10-08 | 1950-07-04 | Ultrasonic Corp | Apparatus for generating sound waves |
US2987033A (en) * | 1959-04-01 | 1961-06-06 | Coceano Domenico | Acoustical generator |
US3292727A (en) * | 1963-05-06 | 1966-12-20 | Messerschmitt Ag | High power sound generator for sonic fatique testing |
DE10103942C1 (de) * | 2001-01-30 | 2002-05-23 | Oskar Bschorr | Strömungsbetriebener Schallgenerator |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2704504A (en) * | 1950-02-02 | 1955-03-22 | Arthur O Wilkening | Sound trap and air transfer device |
US2708006A (en) * | 1953-11-05 | 1955-05-10 | Backman Hans Fredrik | Muffler assembly for internal combustion engines |
FR1376576A (fr) * | 1963-08-02 | 1964-10-31 | Snecma | Silencieux pour réacteurs |
US3378100A (en) * | 1965-10-18 | 1968-04-16 | Air Filter Corp | Sound attenuator |
US3533486A (en) * | 1968-11-08 | 1970-10-13 | Gen Electric | Jet engine silencer with retractable sound absorbing body |
US3612446A (en) * | 1969-10-10 | 1971-10-12 | Herbert A Lebert | Means and method for preventing the formation of audible frequencies in fluids passing over an airfoil section |
US3575259A (en) * | 1970-04-10 | 1971-04-20 | Boeing Co | Retractable noise suppression system |
US4298089A (en) * | 1976-12-23 | 1981-11-03 | The Boeing Company | Vortex generators for internal mixing in a turbofan engine |
US4346781A (en) * | 1978-11-16 | 1982-08-31 | Massachusetts Institute Of Technology | Lined-duct acoustic filter |
US4241805A (en) * | 1979-04-02 | 1980-12-30 | Vibration And Noise Engineering Corporation | High pressure gas vent noise control apparatus and method |
GB2049887B (en) * | 1979-05-23 | 1982-12-01 | Coal Industry Patents Ltd | Acoustic liner for attenuating noise |
US4300656A (en) * | 1980-09-11 | 1981-11-17 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Multiple pure tone elimination strut assembly |
US4464108A (en) * | 1980-11-21 | 1984-08-07 | Donald Korenyi | Combustion apparatus |
JPS6217675Y2 (de) * | 1980-12-05 | 1987-05-07 | ||
US4439104A (en) * | 1981-06-15 | 1984-03-27 | The Garrett Corporation | Compressor inlet guide vane and vortex-disturbing member assembly |
DE3233654C2 (de) * | 1982-09-10 | 1986-01-16 | Ewald Dörken AG, 5804 Herdecke | Schallabsorbierendes Bauelement |
CH671848B (de) * | 1986-05-16 | 1989-09-29 | ||
US4718393A (en) * | 1986-11-20 | 1988-01-12 | Bakish Richard J | Air-fuel homogenizer |
US4909346A (en) * | 1989-06-27 | 1990-03-20 | Nordam | Jet engine noise suppression system |
JPH0577794A (ja) * | 1991-09-20 | 1993-03-30 | Mitsubishi Heavy Ind Ltd | 高速流騒音の減音装置 |
CA2104991C (en) * | 1993-08-27 | 1996-09-10 | Nestor Ewanek | Sound reduction unit for compressors |
US5590849A (en) | 1994-12-19 | 1997-01-07 | General Electric Company | Active noise control using an array of plate radiators and acoustic resonators |
US5702230A (en) | 1996-01-29 | 1997-12-30 | General Electric Company | Actively controlled acoustic treatment panel |
US5904318A (en) * | 1996-12-18 | 1999-05-18 | Towfiq; Foad | Passive reduction of aircraft fuselage noise |
EP0863303B1 (de) * | 1997-03-04 | 2002-06-12 | Nippon Soken, Inc. | Vorrichtung zum Verhindern von Durchströmgeräuschen bei Drosselklappen |
CA2206885C (en) * | 1997-06-03 | 2013-01-08 | Nester Ewanek | Acoustic chamber |
US5947081A (en) * | 1997-08-12 | 1999-09-07 | Kim; Sei Y. | Air flow system for internal combustion engine |
US6471157B1 (en) * | 1999-03-22 | 2002-10-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Device and method for reducing aircraft noise |
US6092621A (en) * | 1999-06-29 | 2000-07-25 | General Electric Company | Methods and apparatus for suppressing engine test cell howl |
US6309176B1 (en) * | 1999-11-12 | 2001-10-30 | Siemens Automotive Inc. | Noise attenuating sound resonator for automotive cooling module shroud |
GB0016149D0 (en) * | 2000-06-30 | 2000-08-23 | Short Brothers Plc | A noise attenuation panel |
CN1539058A (zh) * | 2001-06-29 | 2004-10-20 | 赫罗・普拉桑塔・维贾亚 | 内燃机的空气搅动叶片 |
US7234297B2 (en) * | 2002-06-06 | 2007-06-26 | Maybeck James C | Motorcycle exhaust enhancers |
US7131514B2 (en) * | 2003-08-25 | 2006-11-07 | Ford Global Technologies, Llc | Noise attenuation device for a vehicle exhaust system |
US8166775B2 (en) * | 2003-10-09 | 2012-05-01 | Ford Global Technologies, Llc | Noise attenuating device for a heating-ventilation-cooling system of a motor vehicle |
-
2004
- 2004-03-03 DE DE502004009480T patent/DE502004009480D1/de not_active Expired - Lifetime
- 2004-03-03 EP EP04090083A patent/EP1571650B1/de not_active Expired - Fee Related
-
2005
- 2005-03-02 US US11/068,980 patent/US7516815B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2514129A (en) * | 1947-10-08 | 1950-07-04 | Ultrasonic Corp | Apparatus for generating sound waves |
US2987033A (en) * | 1959-04-01 | 1961-06-06 | Coceano Domenico | Acoustical generator |
US3292727A (en) * | 1963-05-06 | 1966-12-20 | Messerschmitt Ag | High power sound generator for sonic fatique testing |
DE10103942C1 (de) * | 2001-01-30 | 2002-05-23 | Oskar Bschorr | Strömungsbetriebener Schallgenerator |
Also Published As
Publication number | Publication date |
---|---|
US7516815B2 (en) | 2009-04-14 |
US20050194206A1 (en) | 2005-09-08 |
DE502004009480D1 (de) | 2009-06-25 |
EP1571650B1 (de) | 2009-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Wolf et al. | Effects of nonuniform inlet velocity profiles on flow regimes and performance in two-dimensional diffusers | |
EP2582921B1 (de) | Turbomaschine mit geräuschreduzierung | |
EP1367311B1 (de) | Schalldämpferanordnung für einen Strömungskanal, insbesondere für ein Ansaughaus einer Gasturbine | |
EP1571650B1 (de) | Anordnung zur Erzeugung von Schallfeldern mit bestimmter modaler Zusammensetzung | |
DE19750102A1 (de) | Gasdurchströmte Leitung mit Schallabsorptionswirkung | |
DE60121400T2 (de) | Verfahren zur Geräuschreduzierung einer Turbomaschine mittels Phasenverschiebung/-auslöschung und Vorrichtung zur Ausführung des Verfahrens | |
DE112014006922T5 (de) | Akustische Behandlungsanordnung für ein Turbinensystem | |
DE102009002184A1 (de) | Aufbau einer Triebwerk-Simulationseinrichtung | |
Morgan et al. | Further development of supersonic jet noise reduction using nozzle fluidic inserts | |
Fabian et al. | Rearward forcing of an unsteady compressible cascade | |
DE102020115734B4 (de) | Vorrichtung, System und Verfahren zur Untersuchung der Umströmung von Turbinenschaufeln mit Überschall-Abströmung | |
DE2402902A1 (de) | Schalldaempfung von fluidleitungen | |
Grace | Unsteady blade pressure-The BVI model vs. the gust model | |
DE102011010357A1 (de) | Druckgasprüfvorrichtung | |
Warning et al. | Design and validation of a reconfigurable polysonic wind tunnel | |
EP2540992B1 (de) | Vorrichtung und Verfahren zur Erzeugung eines Ringwirbel ausbildenden Prallstrahls sowie Turbomaschine mit einer derartigen Vorrichtung | |
Kamiyoshi et al. | Tone noise reduction of multi-stage fan by airfoil clocking | |
Muldoon et al. | Dynamics of large-scale structures for jets in a crossflow | |
DE102012010509B4 (de) | Vorrichtung zur Erzeugung einer Strömung | |
DE10103942C1 (de) | Strömungsbetriebener Schallgenerator | |
DE102011119191B4 (de) | Fluidaktuator sowie Gasturbine mit Fluidaktuator | |
Wu et al. | A numerical investigation of aeroacoustic fan blade flutter | |
Van Rennings | Numerical simulation and modelling of sound generated by rotating instabilities in an annular compressor cascade | |
Massardo et al. | Stage performance influence on dynamic simulation of gas turbine compressors | |
DE102021209284A1 (de) | Vorrichtung und Verfahren zur Beeinflussung einer Fluidhauptströmung und Düse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20041203 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: ARNOLD, FRANK DR. Inventor name: ROSE, MARCO DR. Inventor name: HOLSTE, FREDI DR. Inventor name: MOORE, ALASTAIR DAVID |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 502004009480 Country of ref document: DE Date of ref document: 20090625 Kind code of ref document: P |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20100216 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20120406 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20120326 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502004009480 Country of ref document: DE Representative=s name: , |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20120328 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502004009480 Country of ref document: DE Owner name: ROLLS-ROYCE PLC, GB Free format text: FORMER OWNER: ROLLS-ROYCE PLC, ROLLS-ROYCE DEUTSCHLAND LTD & C, , GB Effective date: 20130402 Ref country code: DE Ref legal event code: R081 Ref document number: 502004009480 Country of ref document: DE Owner name: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, DE Free format text: FORMER OWNER: ROLLS-ROYCE PLC, ROLLS-ROYCE DEUTSCHLAND LTD & C, , GB Effective date: 20130402 Ref country code: DE Ref legal event code: R081 Ref document number: 502004009480 Country of ref document: DE Owner name: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, DE Free format text: FORMER OWNERS: ROLLS-ROYCE PLC, LONDON, GB; ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, 15827 BLANKENFELDE, DE Effective date: 20130402 Ref country code: DE Ref legal event code: R081 Ref document number: 502004009480 Country of ref document: DE Owner name: ROLLS-ROYCE PLC, GB Free format text: FORMER OWNERS: ROLLS-ROYCE PLC, LONDON, GB; ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, 15827 BLANKENFELDE, DE Effective date: 20130402 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20130303 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20131129 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502004009480 Country of ref document: DE Effective date: 20131001 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130402 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131001 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130303 |