EP0182588A1 - Multi-chamber airfoil cooling insert for turbine vane - Google Patents
Multi-chamber airfoil cooling insert for turbine vane Download PDFInfo
- Publication number
- EP0182588A1 EP0182588A1 EP85308230A EP85308230A EP0182588A1 EP 0182588 A1 EP0182588 A1 EP 0182588A1 EP 85308230 A EP85308230 A EP 85308230A EP 85308230 A EP85308230 A EP 85308230A EP 0182588 A1 EP0182588 A1 EP 0182588A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chambers
- turbine
- rearward
- insert
- ports
- 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
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
- F01D5/188—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall
- F01D5/189—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall the insert having a tubular cross-section, e.g. airfoil shape
-
- 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
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
Definitions
- This invention relates to a combustion turbine and in particular to an airfoil-shaped, hollow turbine vane having a leading edge wall.
- Such turbine airfoil vanes provided with an insert, with the arrangement as a whole providing for air cooling of the vanes.
- the vane structure is of a character and in a stage calling for a low or a moderate level of cooling, which level of cooling can be carried out by the use of impingement jets directed against the interior walls of the vane. Even with those vanes which do not require a high level of cooling, the degree of cooling required at different locations on the vane may differ, with the leading edge region of the vane typically having a relatively higher heat load while downstream and toward the trailing edge of the vane the heat load may be significantly lower.
- An object is to provide a vane and insert structure in which a vane having a single internal cavity is provided with a single, unitary, hollow insert provided with a chamber arrangement and jet impingement ports all tailored to relate the impingement cooling of the walls to the external heat load.
- a combustion turbine comprises an airfoil-shaped, hollow, turbine vane having a leading edge wall, a trailing edge portion with an exit air slot therein, and pressure and suction sidewalls defining a single internal cavity in communication with said exit air slot, a single, unitary, air-cooling, hollow insert, of substantially complementary airfoil shape in cross section, located in said cavity and extending in a chordwise direction for substantially the entire extent of said cavity, a plurality of radially extending partition means in said insert dividing the interior thereof into a forward chamber in the leading edge portion of said vane, and at least two separate, successively rearward chambers in communication with each other, a plurality of impingement ports in the insert walls of all of said chambers, one radial end portion of said chambers being in communication with a source of cooling air, means for throttling the flow into said rearward chambers in which said forward chamber is at a relatively higher pressure than said rearward chambers so that the impingement jets through said ports of
- the insert is provided with a plurality of radially extending partition means to divide the interior thereof into a single forward chamber in the leading edge portion of the vane, and at least two separate, successively rearward chambers in at least partial communication with each other, a plurality of impingement ports in the walls of all of said chambers, one radial end portion of all the chambers being in communication with a source of cooling air, and with means for throttling the flow into the rearward chambers so that the forward chamber is a relatively higher pressure than said rearward chambers and so the impingement jets through the ports of said forward chamber against said interior vane walls of said leading edge portion are at a significantly higher velocity than the impingement jets exiting the ports of the rearward chambers.
- the single, unitary, air-cooling, hollow insert 22 has an airfoil shape in cross section which is complementary to the vane airfoil shape, and extends in a chordwise direction for substantially the entire extent of the vane cavity. While the insert does have the overall shape of an airfoil, it may be seen in Figure 1 that at the leading edge portion 24 the insert is bulged somewhat, a similar bulged arrangement being provided at the trailing edge portion 26.
- the intermediate portion 28 has walls which are basically uniformly spaced from the vane walls throughout the intermediate extent between the front and rear bulges.
- the unitary insert 22 has its interior divided into a forward chamber 30 and successively rearward chambers 32, 34, and 36, by the radially extending partition means 38, 40, and 42, which also perform a structural tying function.
- the radially inner ends of all of the chambers are closed while the radially outer ends of the chambers are in communication with a source of cooling air.
- the radially outer end 44 is completely open so that cooling air flows directly into the forward chamber 30 as indicated by the arrow 46 in Figure 2.
- the flow into these chambers is throttled by means of a radial extension 48 of the insert comprising opposite walls 50 capped by plate 52 which prevents the direct admission of the cooling air into the rearward chambers in the fashion in which the forward chambers receives its air, the cooling air being throttled into the rearward chambers by the provision of the holes 54 in the walls 50.
- the throttling results in the rearward chambers being at a lower pressure than the forward chamber 30.
- impingement ports in their sidewalls.
- Those ports provided in the forward chamber sidewalls are identified by the numeral 56 as best seen in Figure 1.
- the impingement ports in the convex sidewall of the insert for the rearward chambers are designated 58 while those in the concave wall are designated 60.
- All of the impingement ports are in rows which extend substantially radially.
- the rows of ports 56 of the forward chamber are more widely spaced from each other than the rows of ports from the rearward chambers on the convex side, and most of the concave side with the exception of the spacing of the rows of ports of the concave side of the first low-pressure chamber 32.
- the three rearward chambers are open to each other through the provision of a series of ports 62 in both of the partitions or ribs 40 and 42.
- the rearward chambers are also in open communication with each other at the radially outer portion of the chambers by virtue of the partitions 40 and 42 stopping short of the space 64 at the radially outer ends of the chambers.
- the insert has dimples 66 embossed outwardly in its leading edge portion and similar dimples 68 in its trailing edge portion to properly space the insert walls from the vane walls.
- the forward chamber 30 is maintained at a higher pressure than the rearward chambers 32, 34, and 36, so that the cooling jets issuing from the forward chamber are projected at a higher velocity than those exiting through the ports of the rearward chambers so that the higher velocity jets are projected at the higher heat load leading edge and forward convex surface areas of the vane, while the jets issuing from the lower pressure rearward chambers are projected at a lower velocity for cooling the relatively lower heat load regions of the airfoil vane.
- the relatively closer spaced rows of ports throughout the midchord region is to obtain more uniform cooling than would be obtained with widely- spaced high velocity jets.
- Typical pressures at which the chambers can be maintained may be in order of, for example, 160 psig (1102 E+03PA) for the forward chamber, 155 psig (1068 E+03Pa) for the rearward chambers, with the pressures in the spaces between the insert and the opposing vane walls being 150 psig (1033 E+03Pa).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- This invention relates to a combustion turbine and in particular to an airfoil-shaped, hollow turbine vane having a leading edge wall. Such turbine airfoil vanes provided with an insert, with the arrangement as a whole providing for air cooling of the vanes.
- It is known that different stages of the stator vanes require different levels of cooling. The vane structure is of a character and in a stage calling for a low or a moderate level of cooling, which level of cooling can be carried out by the use of impingement jets directed against the interior walls of the vane. Even with those vanes which do not require a high level of cooling, the degree of cooling required at different locations on the vane may differ, with the leading edge region of the vane typically having a relatively higher heat load while downstream and toward the trailing edge of the vane the heat load may be significantly lower.
- An object is to provide a vane and insert structure in which a vane having a single internal cavity is provided with a single, unitary, hollow insert provided with a chamber arrangement and jet impingement ports all tailored to relate the impingement cooling of the walls to the external heat load.
- According to the present invention, a combustion turbine comprises an airfoil-shaped, hollow, turbine vane having a leading edge wall, a trailing edge portion with an exit air slot therein, and pressure and suction sidewalls defining a single internal cavity in communication with said exit air slot, a single, unitary, air-cooling, hollow insert, of substantially complementary airfoil shape in cross section, located in said cavity and extending in a chordwise direction for substantially the entire extent of said cavity, a plurality of radially extending partition means in said insert dividing the interior thereof into a forward chamber in the leading edge portion of said vane, and at least two separate, successively rearward chambers in communication with each other, a plurality of impingement ports in the insert walls of all of said chambers, one radial end portion of said chambers being in communication with a source of cooling air, means for throttling the flow into said rearward chambers in which said forward chamber is at a relatively higher pressure than said rearward chambers so that the impingement jets through said ports of said forward chamber against said interior vane walls of said leading edge portion are at the significantly higher velocity than the impingement jets exiting the ports of said rearward chambers.
- Conveniently, the insert is provided with a plurality of radially extending partition means to divide the interior thereof into a single forward chamber in the leading edge portion of the vane, and at least two separate, successively rearward chambers in at least partial communication with each other, a plurality of impingement ports in the walls of all of said chambers, one radial end portion of all the chambers being in communication with a source of cooling air, and with means for throttling the flow into the rearward chambers so that the forward chamber is a relatively higher pressure than said rearward chambers and so the impingement jets through the ports of said forward chamber against said interior vane walls of said leading edge portion are at a significantly higher velocity than the impingement jets exiting the ports of the rearward chambers.
- The invention will now be described, by way of example, with reference to the accompanying drawings in which:
- Figure 1 is a chordwise sectional view through the vane and insert as would appear from a section taken along the line I-I of Figure 2; and
- Figure 2 is a view partly in elevation and partly in section of the vane and insert, and corresponding to a view taken along the line II-II of Figure 1.
- Figure 1 shows a hollow vane having a single internal cavity defined by the leading edge section, a
concave sidewall 14, aconvex sidewall 16, the downstream portions of these opposite sidewalls defining atrailing edge portion 18 provided with aslot 20 therein. The general direction of the hot gas past the vane is as indicated by the dash line arrow in Figure 1. - The single, unitary, air-cooling,
hollow insert 22 has an airfoil shape in cross section which is complementary to the vane airfoil shape, and extends in a chordwise direction for substantially the entire extent of the vane cavity. While the insert does have the overall shape of an airfoil, it may be seen in Figure 1 that at the leadingedge portion 24 the insert is bulged somewhat, a similar bulged arrangement being provided at thetrailing edge portion 26. Theintermediate portion 28 has walls which are basically uniformly spaced from the vane walls throughout the intermediate extent between the front and rear bulges. - The
unitary insert 22 has its interior divided into aforward chamber 30 and successively rearwardchambers - The radially inner ends of all of the chambers are closed while the radially outer ends of the chambers are in communication with a source of cooling air. As may be best understood from Figure 2, the radially
outer end 44 is completely open so that cooling air flows directly into theforward chamber 30 as indicated by thearrow 46 in Figure 2. While therearward chambers radial extension 48 of the insert comprisingopposite walls 50 capped byplate 52 which prevents the direct admission of the cooling air into the rearward chambers in the fashion in which the forward chambers receives its air, the cooling air being throttled into the rearward chambers by the provision of theholes 54 in thewalls 50. The throttling results in the rearward chambers being at a lower pressure than theforward chamber 30. - Referring to both figures, all of the chambers are provided with impingement ports in their sidewalls. Those ports provided in the forward chamber sidewalls are identified by the
numeral 56 as best seen in Figure 1. The impingement ports in the convex sidewall of the insert for the rearward chambers are designated 58 while those in the concave wall are designated 60. All of the impingement ports are in rows which extend substantially radially. The rows ofports 56 of the forward chamber are more widely spaced from each other than the rows of ports from the rearward chambers on the convex side, and most of the concave side with the exception of the spacing of the rows of ports of the concave side of the first low-pressure chamber 32. The three rearward chambers are open to each other through the provision of a series ofports 62 in both of the partitions orribs partitions space 64 at the radially outer ends of the chambers. - The insert has dimples 66 embossed outwardly in its leading edge portion and
similar dimples 68 in its trailing edge portion to properly space the insert walls from the vane walls. - With the arrangement as shown and described, the
forward chamber 30 is maintained at a higher pressure than therearward chambers - Typical pressures at which the chambers can be maintained may be in order of, for example, 160 psig (1102 E+03PA) for the forward chamber, 155 psig (1068 E+03Pa) for the rearward chambers, with the pressures in the spaces between the insert and the opposing vane walls being 150 psig (1033 E+03Pa).
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67184684A | 1984-11-15 | 1984-11-15 | |
US671846 | 1984-11-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0182588A1 true EP0182588A1 (en) | 1986-05-28 |
EP0182588B1 EP0182588B1 (en) | 1988-09-28 |
Family
ID=24696102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85308230A Expired EP0182588B1 (en) | 1984-11-15 | 1985-11-13 | Multi-chamber airfoil cooling insert for turbine vane |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0182588B1 (en) |
JP (1) | JPS61126302A (en) |
KR (1) | KR860004224A (en) |
CN (1) | CN1004291B (en) |
CA (1) | CA1221915A (en) |
DE (1) | DE3565298D1 (en) |
IN (1) | IN163070B (en) |
IT (1) | IT1186049B (en) |
MX (1) | MX161444A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189553B (en) * | 1986-04-25 | 1990-05-23 | Rolls Royce | Cooled vane |
EP0509802A1 (en) * | 1991-04-16 | 1992-10-21 | General Electric Company | Tip clearance control apparatus |
EP0568226A1 (en) * | 1992-04-27 | 1993-11-03 | General Electric Company | Airfoil having multi-passage baffle |
US6439847B2 (en) | 2000-01-31 | 2002-08-27 | Alstom (Switzerland) Ltd. | Air-cooled turbine blade |
EP1039096A3 (en) * | 1999-03-22 | 2003-03-05 | General Electric Company | Turbine nozzle |
EP1312757A2 (en) * | 2001-11-15 | 2003-05-21 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
EP1312758A2 (en) * | 2001-11-15 | 2003-05-21 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
WO2008133758A2 (en) * | 2007-02-15 | 2008-11-06 | Siemens Energy, Inc. | Airfoil for a gas turbine with impingement holes |
EP2706195A1 (en) * | 2012-09-05 | 2014-03-12 | Siemens Aktiengesellschaft | Impingement tube for gas turbine vane with a partition wall |
EP3064712A1 (en) * | 2015-03-02 | 2016-09-07 | United Technologies Corporation | Baffle insert |
US9506351B2 (en) | 2012-04-27 | 2016-11-29 | General Electric Company | Durable turbine vane |
EP3141699A1 (en) * | 2015-09-08 | 2017-03-15 | General Electric Company | Impingement insert |
US9797261B2 (en) | 2014-10-03 | 2017-10-24 | Rolls-Royce Plc | Internal cooling of engine components |
US9849510B2 (en) | 2015-04-16 | 2017-12-26 | General Electric Company | Article and method of forming an article |
US9976441B2 (en) | 2015-05-29 | 2018-05-22 | General Electric Company | Article, component, and method of forming an article |
US10087776B2 (en) | 2015-09-08 | 2018-10-02 | General Electric Company | Article and method of forming an article |
US10253986B2 (en) | 2015-09-08 | 2019-04-09 | General Electric Company | Article and method of forming an article |
EP3514330A1 (en) * | 2018-01-18 | 2019-07-24 | United Technologies Corporation | Divided baffle for components of gas turbine engines |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7008185B2 (en) * | 2003-02-27 | 2006-03-07 | General Electric Company | Gas turbine engine turbine nozzle bifurcated impingement baffle |
CN104088673B (en) * | 2008-11-07 | 2016-03-09 | 三菱日立电力系统株式会社 | turbine blade |
CN101825115B (en) * | 2010-03-31 | 2011-09-28 | 北京航空航天大学 | Blade with built-in bed frame-type pneumatic damping device |
US20130104567A1 (en) * | 2011-10-31 | 2013-05-02 | Douglas Gerard Konitzer | Method and apparatus for cooling gas turbine rotor blades |
US9004866B2 (en) * | 2011-12-06 | 2015-04-14 | Siemens Aktiengesellschaft | Turbine blade incorporating trailing edge cooling design |
US9863256B2 (en) | 2014-09-04 | 2018-01-09 | Siemens Aktiengesellschaft | Internal cooling system with insert forming nearwall cooling channels in an aft cooling cavity of an airfoil usable in a gas turbine engine |
US9850763B2 (en) | 2015-07-29 | 2017-12-26 | General Electric Company | Article, airfoil component and method for forming article |
US10655477B2 (en) | 2016-07-26 | 2020-05-19 | General Electric Company | Turbine components and method for forming turbine components |
US10400608B2 (en) * | 2016-11-23 | 2019-09-03 | General Electric Company | Cooling structure for a turbine component |
US10260363B2 (en) | 2016-12-08 | 2019-04-16 | General Electric Company | Additive manufactured seal for insert compartmentalization |
US10494948B2 (en) * | 2017-05-09 | 2019-12-03 | General Electric Company | Impingement insert |
US10697309B2 (en) | 2018-04-25 | 2020-06-30 | Raytheon Technologies Corporation | Platform cover plates for gas turbine engine components |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2873944A (en) * | 1952-09-10 | 1959-02-17 | Gen Motors Corp | Turbine blade cooling |
GB853328A (en) * | 1957-05-28 | 1960-11-02 | Snecma | Method of and device for cooling the component elements of machines |
US3540810A (en) * | 1966-03-17 | 1970-11-17 | Gen Electric | Slanted partition for hollow airfoil vane insert |
GB1388260A (en) * | 1972-04-24 | 1975-03-26 | Gen Electric | Cooled turbine blades |
FR2290573A1 (en) * | 1974-11-08 | 1976-06-04 | Bbc Sulzer Turbomaschinen | Gas turbine blades with internal cooling - has inner chamber with perforated wall reducing pressure on blade wall (NO080676) |
FR2457965A1 (en) * | 1973-11-15 | 1980-12-26 | Rolls Royce | HOLLOW BLADE, REFRIGERATED, FOR A GAS TURBINE ENGINE |
GB2054749A (en) * | 1979-07-09 | 1981-02-18 | Westinghouse Electric Corp | Cooled turbind vane |
-
1985
- 1985-10-22 IN IN755/CAL/85A patent/IN163070B/en unknown
- 1985-10-24 MX MX375A patent/MX161444A/en unknown
- 1985-11-07 JP JP60248171A patent/JPS61126302A/en active Granted
- 1985-11-11 IT IT8522785A patent/IT1186049B/en active
- 1985-11-13 DE DE8585308230T patent/DE3565298D1/en not_active Expired
- 1985-11-13 CA CA000495185A patent/CA1221915A/en not_active Expired
- 1985-11-13 EP EP85308230A patent/EP0182588B1/en not_active Expired
- 1985-11-14 CN CN85108282.3A patent/CN1004291B/en not_active Expired
- 1985-11-15 KR KR1019850008558A patent/KR860004224A/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2873944A (en) * | 1952-09-10 | 1959-02-17 | Gen Motors Corp | Turbine blade cooling |
GB853328A (en) * | 1957-05-28 | 1960-11-02 | Snecma | Method of and device for cooling the component elements of machines |
US3540810A (en) * | 1966-03-17 | 1970-11-17 | Gen Electric | Slanted partition for hollow airfoil vane insert |
GB1388260A (en) * | 1972-04-24 | 1975-03-26 | Gen Electric | Cooled turbine blades |
FR2457965A1 (en) * | 1973-11-15 | 1980-12-26 | Rolls Royce | HOLLOW BLADE, REFRIGERATED, FOR A GAS TURBINE ENGINE |
FR2290573A1 (en) * | 1974-11-08 | 1976-06-04 | Bbc Sulzer Turbomaschinen | Gas turbine blades with internal cooling - has inner chamber with perforated wall reducing pressure on blade wall (NO080676) |
GB2054749A (en) * | 1979-07-09 | 1981-02-18 | Westinghouse Electric Corp | Cooled turbind vane |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2189553B (en) * | 1986-04-25 | 1990-05-23 | Rolls Royce | Cooled vane |
EP0509802A1 (en) * | 1991-04-16 | 1992-10-21 | General Electric Company | Tip clearance control apparatus |
EP0568226A1 (en) * | 1992-04-27 | 1993-11-03 | General Electric Company | Airfoil having multi-passage baffle |
EP1039096A3 (en) * | 1999-03-22 | 2003-03-05 | General Electric Company | Turbine nozzle |
US6439847B2 (en) | 2000-01-31 | 2002-08-27 | Alstom (Switzerland) Ltd. | Air-cooled turbine blade |
EP1312758A2 (en) * | 2001-11-15 | 2003-05-21 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
EP1312757A3 (en) * | 2001-11-15 | 2006-06-07 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
EP1312758A3 (en) * | 2001-11-15 | 2006-06-07 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
EP1312757A2 (en) * | 2001-11-15 | 2003-05-21 | General Electric Company | Methods and apparatus for cooling gas turbine nozzles |
WO2008133758A2 (en) * | 2007-02-15 | 2008-11-06 | Siemens Energy, Inc. | Airfoil for a gas turbine with impingement holes |
WO2008133758A3 (en) * | 2007-02-15 | 2009-07-09 | Siemens Energy Inc | Airfoil for a gas turbine with impingement holes |
US7871246B2 (en) | 2007-02-15 | 2011-01-18 | Siemens Energy, Inc. | Airfoil for a gas turbine |
US9506351B2 (en) | 2012-04-27 | 2016-11-29 | General Electric Company | Durable turbine vane |
EP2706195A1 (en) * | 2012-09-05 | 2014-03-12 | Siemens Aktiengesellschaft | Impingement tube for gas turbine vane with a partition wall |
WO2014037227A1 (en) * | 2012-09-05 | 2014-03-13 | Siemens Aktiengesellschaft | Impingement tube for gas turbine vane with a partition wall |
US9797261B2 (en) | 2014-10-03 | 2017-10-24 | Rolls-Royce Plc | Internal cooling of engine components |
EP3064712A1 (en) * | 2015-03-02 | 2016-09-07 | United Technologies Corporation | Baffle insert |
US10329932B2 (en) | 2015-03-02 | 2019-06-25 | United Technologies Corporation | Baffle inserts |
US9849510B2 (en) | 2015-04-16 | 2017-12-26 | General Electric Company | Article and method of forming an article |
US9976441B2 (en) | 2015-05-29 | 2018-05-22 | General Electric Company | Article, component, and method of forming an article |
US10087776B2 (en) | 2015-09-08 | 2018-10-02 | General Electric Company | Article and method of forming an article |
US10253986B2 (en) | 2015-09-08 | 2019-04-09 | General Electric Company | Article and method of forming an article |
EP3141699A1 (en) * | 2015-09-08 | 2017-03-15 | General Electric Company | Impingement insert |
US10739087B2 (en) | 2015-09-08 | 2020-08-11 | General Electric Company | Article, component, and method of forming an article |
EP3514330A1 (en) * | 2018-01-18 | 2019-07-24 | United Technologies Corporation | Divided baffle for components of gas turbine engines |
US10480347B2 (en) | 2018-01-18 | 2019-11-19 | United Technologies Corporation | Divided baffle for components of gas turbine engines |
US10954815B2 (en) | 2018-01-18 | 2021-03-23 | Raytheon Technologies Corporation | Divided baffle for components of gas turbine engines |
Also Published As
Publication number | Publication date |
---|---|
EP0182588B1 (en) | 1988-09-28 |
IT1186049B (en) | 1987-11-18 |
JPS61126302A (en) | 1986-06-13 |
CN1004291B (en) | 1989-05-24 |
DE3565298D1 (en) | 1988-11-03 |
IN163070B (en) | 1988-08-06 |
KR860004224A (en) | 1986-06-18 |
CN85108282A (en) | 1986-08-27 |
CA1221915A (en) | 1987-05-19 |
IT8522785A0 (en) | 1985-11-11 |
MX161444A (en) | 1990-09-27 |
JPH0379522B2 (en) | 1991-12-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0182588A1 (en) | Multi-chamber airfoil cooling insert for turbine vane | |
US4616976A (en) | Cooled vane or blade for a gas turbine engine | |
US4461612A (en) | Aerofoil for a gas turbine engine | |
US5468125A (en) | Turbine blade with improved heat transfer surface | |
US5387085A (en) | Turbine blade composite cooling circuit | |
US5356265A (en) | Chordally bifurcated turbine blade | |
US4021139A (en) | Gas turbine guide vane | |
US3930748A (en) | Hollow cooled vane or blade for a gas turbine engine | |
EP1106781B1 (en) | Coolable vane or blade for a turbomachine | |
US4297077A (en) | Cooled turbine vane | |
US5193980A (en) | Hollow turbine blade with internal cooling system | |
US6164913A (en) | Dust resistant airfoil cooling | |
US6036441A (en) | Series impingement cooled airfoil | |
JP4719122B2 (en) | Reverse cooling turbine nozzle | |
GB2344618A (en) | Reduced-length high flow interstage air extraction | |
JP4436500B2 (en) | Airfoil leading edge isolation cooling | |
US7600965B2 (en) | Flow structure for a turbocompressor | |
US4482295A (en) | Turbine airfoil vane structure | |
US7059834B2 (en) | Turbine blade | |
KR20010109466A (en) | Steam exit flow design for aft cavities of an airfoil | |
EP0475658A1 (en) | Turbine blade airfoil with serial impingement cooling through internal cavity-forming ribs | |
KR20160037093A (en) | Cooling scheme for a turbine blade of a gsa turbine | |
KR20010105148A (en) | Nozzle cavity insert having impingement and convection cooling regions | |
GB2402442A (en) | A cooled nozzled guide vane or rotor blade platform assembly | |
US20030156943A1 (en) | Configuration of a coolable turbine blade |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI SE |
|
17P | Request for examination filed |
Effective date: 19861125 |
|
17Q | First examination report despatched |
Effective date: 19870723 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI SE |
|
REF | Corresponds to: |
Ref document number: 3565298 Country of ref document: DE Date of ref document: 19881103 |
|
ET | Fr: translation filed | ||
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 | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19910917 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19910919 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19911216 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19921114 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19921130 Ref country code: CH Effective date: 19921130 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19930730 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19930922 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19931231 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19941113 |
|
EUG | Se: european patent has lapsed |
Ref document number: 85308230.3 Effective date: 19930610 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19941113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950801 |