EP1817528A1 - Thermal shield element, method for the production thereof, hot gas lining, and combustion chamber - Google Patents
Thermal shield element, method for the production thereof, hot gas lining, and combustion chamberInfo
- Publication number
- EP1817528A1 EP1817528A1 EP05811090A EP05811090A EP1817528A1 EP 1817528 A1 EP1817528 A1 EP 1817528A1 EP 05811090 A EP05811090 A EP 05811090A EP 05811090 A EP05811090 A EP 05811090A EP 1817528 A1 EP1817528 A1 EP 1817528A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat shield
- thermal expansion
- shield element
- hot
- coefficient
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/002—Wall structures
Definitions
- Heat shield element method for its production, Heisga clothes and combustion chamber
- the present invention relates to a heat shield element, in particular a ceramic heat shield element, a procedural ⁇ ren for producing a ceramic heat shield element, a built-up from heat shield elements Heisgasausposed well as provided with a Heisgasausposed combustion chamber, which can be designed in particular as a gas turbine combustor.
- the walls of hot gas-carrying combustors, such as gas turbine plants require thermal shielding of their supporting structure against hot gas attack.
- the thermal shielding can be realized, for example, by means of a hot gas lining upstream of the actual combustion chamber wall, for example in the form of a ceramic heat shield.
- a ceramic heat shield usually constructed of a number of metallic or ceramic heat shield elements with which the combustion chamber wall is lined flat. Ceramic materials offer for building a Heisgasaus noted compared to metallic materials due to their high temperature resistance, Korrosionsbestän ⁇ resistance and low thermal conductivity to ideally.
- a ceramic heat shield is described, for example, in EP 0 558 540 B1 .
- the object of the present invention is to provide a heat shield element in which the tendency for cracking is reduced.
- a further object of the present invention is to provide an advantageous heat shield and a combustion chamber equipped with an advantageous heat shield.
- the first object of the invention is achieved by a heat shield ⁇ element according to claim 1, the second object by ei ⁇ NEN heat shield according to claim 7 or a combustion chamber according to claim 8 and the third object by a method according to claim 9.
- the other claims contain advantageous Wei ⁇ developments of the invention.
- a heat shield element according to the invention has a hot side to be turned towards a hot medium, a cold side to be turned away from the hot medium, and circumferential surfaces connecting the hot side to the cold side.
- the hot side, the cold side and the peripheral surfaces limit the material volume of the heat shield element.
- the heat shield element according to the invention is characterized in that the material volume comprises at least two material regions which differ from one another in their thermal expansion coefficients. With suitable thermal expansion coefficients, the thermal expansion of the material regions can be influenced in a targeted manner.
- the heat shield element according to the invention at least adjacent a region of material having a relatively low thermal expansion coefficient at the hot side of the heat shield element on, whereas at least one Mate ⁇ rial Scheme having a relatively high thermal expansion coefficient to the cold side of the heat shield element adjacent.
- On the hot side occur at the transition from the ambient temperature (for example, when a gas turbine plant) to maximum operating temperature (for example, at full load of a gas turbine plant) greater temperature differences than on the cooled cold side of the heat shield element.
- the ⁇ se be compensated in the described embodiment in that the thermal expansion coefficient of the Hit ⁇ zeschildettis in the hot side is lower than in the region of the cold side.
- the material expansion in the region of the cold side can be adapted to the material expansion in the region of the hot side, whereby material stresses in the heat shield element can be reduced.
- a region of material having a relatively high coefficient of thermal expansion may be at least adjacent to the circumferential surface of the heat shield element and at least one Materi ⁇ seen Alber calibration with a relatively low thermal expansion coefficient of the peripheral surfaces of the interior of the Material volume can be arranged.
- a material region with a relatively low coefficient of thermal expansion on the hot side and a material region with a relatively high thermal expansion coefficient can adjoin the cold side. Since a cooling of the heat shield elements of a heat shield due to the blocking air flow he follows ⁇ in particular, occur in heat shield elements with homogeneous thermal expansion coefficients in the region of the peripheral surfaces high voltages, which arise due to the opposite to the rest of the heat shield element particularly low operating temperatures. Characterized in that the thermal coefficient of expan ⁇ coefficient in the range of the peripheral surfaces as compared to the inside (from the peripheral surfaces of view) of the heat shield element is increased, the stresses can be reduced.
- adjacent material areas are designed with different coefficients of thermal expansion such that in the zone of transition from one Mate ⁇ rial Scheme to the other material area a flowing transition from the thermal expansion coefficient of a material range to the coefficient of thermal expansion of the other Material area takes place. Because of the flowing ⁇ sequent transition of the coefficient of thermal expansion, the risk of destruction of the heat shield during the manufacturing process allows, especially during the sintering process, which takes place at elevated approximately homogeneous temperature decrease.
- the heat shield element according to the invention can in particular be designed as a ceramic heat shield element.
- An inventive heat shield in particular as a
- Heat shield for a gas turbine combustor can be configured comprises a number of under heat stress on their peripheral surfaces on adjacent heat shield elements and a barrier fluid supply for supplying a the expansion column against the entry of hot medium blocking
- the heat shield according to the invention is characterized in that the heat shield elements are designed as erfin ⁇ tion proper heat shield elements.
- a combustion chamber according to the invention is provided with a heat shield erfindungsge ⁇ MAESSEN lined. It can be designed in particular as a gas turbine combustion chamber.
- the method according to the invention for producing a ceramic heat shield element pressing or casting of a base material mixture takes place and subsequent sintering of the pressed or cast base material mixture.
- the method according to the invention is characterized in that before the sintering of the pressed or cast base material mixture, the thermal expansion coefficients of different material regions are adjusted.
- ⁇ A of the thermal expansion coefficients represent different material regions can be the resistance of egg nes produced by the inventive method
- the thermal expansion coefficients can be set, for example, by using base material mixtures having different compositions during pressing or casting for the corresponding material regions.
- the composition of the base material mixture can be changed over smoothly from one composition to the other composition, so that a smooth transition of the thermal expansion coefficient can be realized.
- thermal expansion coefficients by after the pressing or casting of the base material mixture and before sintering a post-treatment of at least one material area, which after sintering compared to the rest of the base material mixture changed, for example.
- a relatively low thermal Expansion coefficient should have.
- the aftertreatment can be carried out, for example, by impregnating the at least one material area to be post-treated with a liquid. This approach allows a particularly good definition of material areas, which should have a relation to the rest of the base material mixture modified thermal expansion coefficient.
- FIG. 1 shows a heat shield element in a perspective view.
- FIG. 2 a shows a first embodiment of the heat shield element shown in FIG. 1 in a section along the line AA.
- FIG. 2b shows a modification of the heat shield element shown in FIG. 2a in a section along the line BB from FIG. 1.
- Figure 3 shows a second embodiment of the heat shield element shown in Figure 1 in a section along the line A-A.
- FIG. 4 shows a third embodiment of the heat shield element shown in FIG. 1 in a section along the line A-A.
- Figure 5a shows a first step of a first herstel ⁇ averaging method for an inventive heat shield element.
- FIG. 5b shows a second step of the manufacturing method from FIG. 5a.
- FIG. 5 c shows an alternative variant of the method illustrated in FIGS. 5 a and 5 b.
- FIG. 6a shows a first step of a second herstel ⁇ averaging method for an inventive heat shield element.
- FIG. 6b shows a second step of ge Attach ⁇ in Figure 6a th process.
- FIG. 1 shows a ceramic heat shield element 1 in a perspective view.
- the heat shield element 1 has a hot side 3, which faces to the installation of the Hitzeschildele ⁇ mentes 1 in a heat shield the hot medium.
- the hot side 3 is opposite the cold side 5 of the Hit ⁇ zeschildiatas 1, which faces after installation in a heat ⁇ shield of the supporting structure of the combustion chamber wall and thus facing away from the hot medium.
- Hot side 3 and cold side 5 are connected to each other via first circumferential surfaces 7 and second circumferential surfaces 9.
- the second circumferential area Chen 9 have grooves 11, into which is connected to the support structure of the combustion chamber wall retaining clips (not Darge ⁇ represents) can be engaged to the heat shield element after installation in a ceramic Heisgasausposed to keep in position.
- the first peripheral surfaces 7, however, have no groove.
- the hot side 3, the cold side 5, the first peripheral surfaces 7 and the second peripheral surfaces 9 enclose the material volume of the heat shield element, which ensures the thermal shielding effect.
- a first embodiment of the heat shield element according to the invention is shown in Figure 2a in section.
- the section taken along the line AA of Figure 1.
- the heat shield member 10 has a first Mate ⁇ rial Scheme 19 and second material portions 21, which differ from the material region 19 by their thermal expansion coefficients.
- the thermal expansion coefficient of the material regions 21 is greater than the thermal expansion coefficient of the material region 19. In this sense, the material region 19 has a relatively low coefficient of thermal expansion, whereas the mate ⁇ rial Schemee 21 have a relatively high thermal expansion coefficient.
- the supporting structure of the combustion chamber wall is lined with a number of heat shield elements 10 throughout.
- the heat shield elements 10 are attached to one another in such a way that expansion gaps remain between adjacent heat shield elements 10. This expansion gaps serve to an expansion of the heat shield elements 10 during operation of the combustion chamber due to the allow high operating temperatures without the heat shield elements 10 touching each other.
- the expansion gaps are flushed with sealing air, which also serves to cool the heat ⁇ shield elements 10 holding holding elements. For this reason, lower temperatures prevail on the first peripheral surface 17 (bypassed in the blocking air) and the second peripheral surfaces (also not visible in FIG. 2a) during operation of the combustion chamber than in the central region 23 of the heat shield element 10.
- the centrally located material region 19 of a conventional heat shield element experiences a higher thermal expansion than the material regions 21 located in the region of the peripheral surfaces. In the low temperature regions, which are positively connected with the region of higher temperature, tensile stresses are thus formed.
- the relatively cool material regions 21 would be in a conventional heat shield element as a result of their relatively ge ⁇ ring thermal expansion of the hot central region 19, which undergoes a greater thermal expansion ge ⁇ train and could experience cracking when exceeding the material strength , The cracks would emanate from the edges of the heat shield and extend in the direction of the hit ⁇ zeschildinnere. Such cracking can reduce the life of a heat shield element.
- the voltages described with respect to a conventional heat shield element are Ringert comparable, especially in the cool peripheral portions, since the material regions 21 have a higher thermal expansion coefficient than the central Materialbe ⁇ rich 19.
- the higher temperature of the central Materialberei- Ches 19 is thus compensated by the larger thermal expansion coefficient of the material regions 21 in the region of the peripheral surfaces 17.
- the thermal expansion coefficients of the material regions 19 and 21 and the extent of these material regions in the material volume of the heat shield element 10 can be numerically optimized such that the stresses in the heat shield element 10 are minimized.
- the expansion of the material regions 21 can be determined with relatively high coefficients of thermal expansion, by first performing a calculation of the temperature field which occurs in the desired operating state under corresponding boundary conditions in the heat shield element. Subsequently, on the basis of this result, the size of the regions 21 for the selected coefficient of thermal expansion can be adjusted such that a minimization of the stresses in the heat shield element 10 takes place.
- the thermal expansion coefficients and the expansions of the material regions can be optimized simultaneously. However, it is also possible to specify the extent, for example, of the circumferential material regions 21 and to find suitable thermal expansion coefficients by means of an optimization.
- the erfindungsge- Permitted heat shield element 10 may also include material regions 20 have with ge ⁇ geninate the central material area 19 increased thermal expansion coefficient and reduced thermal conductivity in the range of the second circumferential faces, ie in the area of the grooved 18 peripheral surfaces (Fig. 2b).
- a second embodiment of the heat shield element according to the invention is shown in section in FIG. The section runs along the line AA shown in FIG. Accordingly, the hot side 113, the cold side 115 and the groove-free peripheral surfaces 117 of the heat shield element 110 can be seen.
- the heat shield member 110 has a hot side 119 Materialbe ⁇ rich coefficient having a relatively low thermal Ausdehnungskoef- and relatively low thermal conductivity. On the cold side, it has a material region 121 with respect to the hot-side material region 119 increased thermal expansion coefficient, increased thermal conductivity and increased mechanical strength.
- This embodiment takes into account the fact that the hot side 113 of a heat shield element is exposed to a higher temperature during operation of a combustion chamber than the generally cooled cold side 115. In the heat shield element 110, therefore, a temperature gradient forms from the hot side 113 to the cold side 115 , The lower temperature of the cold-side material region 121 is then compensated during operation of the combustion chamber by its thermal expansion coefficient, which is higher in comparison with the hot-side material region 119. Tensions due to the temperature gradient can therefore be reliably avoided.
- FIG. 4 A third embodiment of the heat shield element according to the invention is shown in Figure 4 in section.
- the section runs along the line AA shown in FIG. Accordingly, the cold side 213, the hot side 215 and the groove-free peripheral surfaces 217 of the heat shield element 210 can be seen.
- the heat shield element 210 has a ers ⁇ th, hot-side material region 219 having a first thermal expansion coefficient, circumferential second Mate rial Schemee 221 having a second thermal Ausdehnungsko ⁇ efficient and a cold side material region 223 with a third coefficient of thermal expansion.
- there can the second and the third thermal Ausdehnungskoef ⁇ fizient also be identical.
- the areas with different coefficients of expansion should, if possible, not be in the form of sharp boundaries of material properties, but rather in the form of smooth transitions of material properties, to avoid the risk of damaging the heat shield during the manufacturing process, especially during sintering, at elevated, far - Hend homogeneous temperature takes place, to avoid.
- FIG. 5a shows a first step of the production method
- FIG. 5b shows a second step.
- the method comprises casting material mixtures into a mold 340 so as to form a green body, and then sintering the greenware to complete the ceramic heat shield element.
- FIGS. 5a and 5b The casting of the material mixtures is shown in FIGS. 5a and 5b.
- a material mixture 321 having a first composition is poured into the mold 340 (FIG. 5a).
- a material mixture 319 having a second composition is poured over the first material mixture 321.
- the consistency of the material mixtures is such that no complete mixing of the two material mixtures occurs. However, mixing at the interface 320 is desirable.
- compositions of the material mixtures 319 and 321 are selected such that the material mixture 319 has a lower thermal expansion coefficient after sintering than the material mixture 321.
- the casting is carried out of the heat shield element with a stationary mold, ie derje- nige part of the mold which forms the cold side and the ⁇ one who part of the mold which forms the Heisseite, are side walls of the mold, whereas the bottom of the casting ⁇ form is a part of the mold, which forms one of the peripheral surfaces of the heat shield element.
- Fig. 5c is a standing mold in
- templates 346, 347 may serve to separate different portions 348, 349, 350 of the mold 345 from each other.
- different material mixtures are poured.
- three different material mixtures can be used with the mold from FIG. 5c, namely one for the regions 348, one for the region 349 and one for the region 350.
- the two separate sections 348 can be identical. if different material mixtures to use, so that a total of four material mixtures are used.
- different material mixtures can also be successively filled in one area.
- the templates are removed to effect bonding of the cast material mixes. Again, the consistency of the material mixtures is selected such that in the region of the interfaces after the removal of the templates, a mixing of the material mixtures.
- FIG. 6b A second manufacturing method of the present invention heat shield elements will now be described with reference to the figures 6a and 6b.
- a material mixture 419 is placed in a mold 440, 450 and then pressed.
- the result is a green body 410 of the heat shield element.
- This green compact 410 is shown in FIG. 6b. It can be seen the green compact 410, the hot side 413, the cold side 415 and the nut ⁇ free peripheral surfaces 417th In the area of the groove-free peripheral surfaces 417, the green body 410 is impregnated with a liquid which influences the sintering process.
- the liquid is chosen so that the ge ⁇ soaked areas 421 having, after sintering, a higher thermal expansion coefficient than the non-impregnated region of 419th
- the grooved circumferential surfaces of the green body 410 may also be soaked to increase the thermal expansion coefficient of the respective regions.
- the result of the method described with reference to FIGS. 6a and 6b is a heat shield element as shown in FIG.
- the mold can be filled lie ⁇ ing or standing and the filling of Mate ⁇ rialmischept done using templates.
- the mold can thereby - as well as the mold when pouring a heat shield element - are placed or filled at any angle.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05811090.9A EP1817528B1 (en) | 2004-12-01 | 2005-11-22 | Method for the production of a thermal shield element |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04028445A EP1666797A1 (en) | 2004-12-01 | 2004-12-01 | Heat shield element, method for manufacturing the same, heat shield and combustor |
EP05811090.9A EP1817528B1 (en) | 2004-12-01 | 2005-11-22 | Method for the production of a thermal shield element |
PCT/EP2005/056127 WO2006058851A1 (en) | 2004-12-01 | 2005-11-22 | Thermal shield element, method for the production thereof, hot gas lining, and combustion chamber |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1817528A1 true EP1817528A1 (en) | 2007-08-15 |
EP1817528B1 EP1817528B1 (en) | 2016-10-19 |
Family
ID=34927604
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04028445A Withdrawn EP1666797A1 (en) | 2004-12-01 | 2004-12-01 | Heat shield element, method for manufacturing the same, heat shield and combustor |
EP05811090.9A Not-in-force EP1817528B1 (en) | 2004-12-01 | 2005-11-22 | Method for the production of a thermal shield element |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04028445A Withdrawn EP1666797A1 (en) | 2004-12-01 | 2004-12-01 | Heat shield element, method for manufacturing the same, heat shield and combustor |
Country Status (3)
Country | Link |
---|---|
US (1) | US20080104963A1 (en) |
EP (2) | EP1666797A1 (en) |
WO (1) | WO2006058851A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428647B1 (en) * | 2010-09-08 | 2018-07-11 | Ansaldo Energia IP UK Limited | Transitional Region for a Combustion Chamber of a Gas Turbine |
DE102012201650A1 (en) | 2012-02-03 | 2013-08-08 | Sgl Carbon Se | Heat shield with outer fiber winding |
WO2014149108A1 (en) | 2013-03-15 | 2014-09-25 | Graves Charles B | Shell and tiled liner arrangement for a combustor |
WO2014187659A1 (en) * | 2013-05-21 | 2014-11-27 | Siemens Aktiengesellschaft | Heat shield tile for a heat shield of a combustion chamber |
US10935235B2 (en) | 2016-11-10 | 2021-03-02 | Raytheon Technologies Corporation | Non-planar combustor liner panel for a gas turbine engine combustor |
US10830433B2 (en) | 2016-11-10 | 2020-11-10 | Raytheon Technologies Corporation | Axial non-linear interface for combustor liner panels in a gas turbine combustor |
US10655853B2 (en) | 2016-11-10 | 2020-05-19 | United Technologies Corporation | Combustor liner panel with non-linear circumferential edge for a gas turbine engine combustor |
US10935236B2 (en) | 2016-11-10 | 2021-03-02 | Raytheon Technologies Corporation | Non-planar combustor liner panel for a gas turbine engine combustor |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3174444A (en) * | 1964-01-27 | 1965-03-23 | Harbison Walker Refractories | Suspended hot patch brick |
GB1272591A (en) * | 1968-03-28 | 1972-05-03 | Delaney Gallay Ltd | Improvements in and relating to heat shields |
US4485630A (en) * | 1982-12-08 | 1984-12-04 | General Electric Company | Combustor liner |
US4838030A (en) * | 1987-08-06 | 1989-06-13 | Avco Corporation | Combustion chamber liner having failure activated cooling and dectection system |
FR2664585B1 (en) * | 1990-07-13 | 1993-08-06 | Europ Propulsion | COOLED REFRACTORY STRUCTURES AND METHOD FOR THEIR MANUFACTURE. |
WO1992009850A1 (en) * | 1990-11-29 | 1992-06-11 | Siemens Aktiengesellschaft | Ceramic heat shield on a bearing structure |
US6733907B2 (en) * | 1998-03-27 | 2004-05-11 | Siemens Westinghouse Power Corporation | Hybrid ceramic material composed of insulating and structural ceramic layers |
DE10017429C2 (en) * | 2000-04-07 | 2002-04-18 | Deutsch Zentr Luft & Raumfahrt | Composite ceramic with graded thermochemical protective layer, process for its production and its use |
DE10046094C2 (en) * | 2000-09-18 | 2002-09-19 | Siemens Ag | Heat shield brick for lining a combustion chamber wall |
EP1191285A1 (en) * | 2000-09-22 | 2002-03-27 | Siemens Aktiengesellschaft | Heat shield panel, combustion chamber with inner lining and a gas turbine |
EP1199520A1 (en) * | 2000-10-16 | 2002-04-24 | Siemens Aktiengesellschaft | Heat shield element for lining a combustion chamber wall, combustion chamber and gas turbine |
EP1302723A1 (en) * | 2001-10-15 | 2003-04-16 | Siemens Aktiengesellschaft | Lining for combustion chamber inside walls |
US7291407B2 (en) * | 2002-09-06 | 2007-11-06 | Siemens Power Generation, Inc. | Ceramic material having ceramic matrix composite backing and method of manufacturing |
US20060141237A1 (en) * | 2004-12-23 | 2006-06-29 | Katherine Leighton | Metal-ceramic materials |
-
2004
- 2004-12-01 EP EP04028445A patent/EP1666797A1/en not_active Withdrawn
-
2005
- 2005-11-22 WO PCT/EP2005/056127 patent/WO2006058851A1/en active Application Filing
- 2005-11-22 EP EP05811090.9A patent/EP1817528B1/en not_active Not-in-force
- 2005-11-22 US US11/792,130 patent/US20080104963A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2006058851A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1666797A1 (en) | 2006-06-07 |
US20080104963A1 (en) | 2008-05-08 |
WO2006058851A1 (en) | 2006-06-08 |
EP1817528B1 (en) | 2016-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006058851A1 (en) | Thermal shield element, method for the production thereof, hot gas lining, and combustion chamber | |
EP0895027B1 (en) | Ceramic lining | |
WO2006058629A1 (en) | Heat shield element, method and form for the production thereof, hot gas lining and combustion chamber | |
DE69009116T2 (en) | Combustion chamber with thermal insulation. | |
EP0724116A2 (en) | Ceramic lining | |
EP1741981A1 (en) | Ceramic heatshield element and high temperature gas reactor lined with such a heatshield | |
DE2522650A1 (en) | THERMAL INSULATION COMPONENT FOR A CYLINDRICAL BODY AND METHOD FOR THERMAL INSULATION OF A CYLINDRICAL BODY | |
DE102011006659A1 (en) | Method for producing a component, component and turbomachine with component | |
DE2756007A1 (en) | HOUSING OF A PISTON COMBUSTION ENGINE FOR MOTOR VEHICLES | |
DE69608389T2 (en) | Turbine blade and casting process with optimal wall thickness control | |
DE102005054616B3 (en) | Durable mold for light metal castings, especially cylinder heads, has a mold body with hollow zones to mold insert bodies to take the molten metal with shoulder in a positive fit at shaped holders and spaces to allow expansion of cold molds | |
EP1006315B1 (en) | Ceramic lining for a combustion chamber | |
DE69003629T2 (en) | Pre-combustion chamber with thermal insulation and process for its manufacture. | |
EP1715271A1 (en) | Heat shield element, combustion chamber and gas turbine | |
DE3907500C1 (en) | Gas bubble brick with directed porosity and method for its manufacture | |
AT517139A1 (en) | Supported tubular mold for billet and bloom systems | |
DE19808810C1 (en) | Hollow block for the chamber edge grid of a glass melting furnace | |
DE69003620T2 (en) | Pre-combustion chamber with thermal insulation. | |
WO1996025259A1 (en) | Gas sink in the form of an interstitial flushing device | |
EP0670209B1 (en) | Heating device, in particular for use in injection moulds for processing thermoplastic materials | |
EP1797976A2 (en) | Conical bubble brick | |
EP1660833A2 (en) | Thermal shielding brick for lining a combustion chamber wall, combustion chamber and a gas turbine | |
WO2006094803A1 (en) | Method for producing a continuous casting mold and corresponding continuous casting mold | |
EP0296320B1 (en) | Cylinder head for an internal combustion engine | |
DE4242852A1 (en) | Device for the directional solidification of melting material |
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: 20070307 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE ES GB IT LI PL |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE ES GB IT LI PL |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
17Q | First examination report despatched |
Effective date: 20130805 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20160511 |
|
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): CH DE ES GB IT LI PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502005015406 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20161019 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20161019 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502005015406 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161130 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161130 |
|
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 |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: SIEMENS AKTIENGESELLSCHAFT |
|
26N | No opposition filed |
Effective date: 20170720 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20170119 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170119 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20181127 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20190118 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502005015406 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200603 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20191122 |