IN2014DN07825A - - Google Patents
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- Publication number
- IN2014DN07825A IN2014DN07825A IN7825DEN2014A IN2014DN07825A IN 2014DN07825 A IN2014DN07825 A IN 2014DN07825A IN 7825DEN2014 A IN7825DEN2014 A IN 7825DEN2014A IN 2014DN07825 A IN2014DN07825 A IN 2014DN07825A
- Authority
- IN
- India
- Prior art keywords
- duct
- struts
- region
- downstream
- flow
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/20—Mounting or supporting of plant; Accommodating heat expansion or creep
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/04—Mounting of an exhaust cone in the jet pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/70—Shape
- F05B2250/71—Shape curved
- F05B2250/711—Shape curved convex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/70—Shape
- F05B2250/71—Shape curved
- F05B2250/712—Shape curved concave
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2250/00—Geometry
- F05B2250/70—Shape
- F05B2250/71—Shape curved
- F05B2250/713—Shape curved inflexed
-
- 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
- F05D2240/00—Components
- F05D2240/90—Mounting on supporting structures or systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
- Exhaust Silencers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
An exhaust diffuser for a gas turbine comprises an annular duct (1). A row of struts (6) is arranged in the duct. In a region downstream of the trailing edges (TE) of the struts (6), the cross-sectional area of the duct decreases to a local minimum (M) and then increases again I towards the outlet end (3) of the duct. Thereby the gas flow is locally accelerated downstream of the struts. This stabilizes the boundary layer of the flow in this region and leads to a marked increase in pressure recovery for a wide range of operating conditions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12162686.5A EP2644846A1 (en) | 2012-03-30 | 2012-03-30 | Exhaust diffuser for a gas turbine |
PCT/EP2013/056263 WO2013144081A1 (en) | 2012-03-30 | 2013-03-25 | Exhaust diffuser for a gas turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014DN07825A true IN2014DN07825A (en) | 2015-05-15 |
Family
ID=47997493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN7825DEN2014 IN2014DN07825A (en) | 2012-03-30 | 2013-03-25 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10006309B2 (en) |
EP (2) | EP2644846A1 (en) |
JP (1) | JP6275111B2 (en) |
CN (1) | CN104204423B (en) |
IN (1) | IN2014DN07825A (en) |
WO (1) | WO2013144081A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6409072B2 (en) * | 2014-03-18 | 2018-10-17 | ゼネラル・エレクトリック・カンパニイ | Exhaust gas diffuser with main and small struts |
EP3032032B1 (en) * | 2014-12-12 | 2019-06-12 | MTU Aero Engines GmbH | Outlet guide vanes and turbofan with outlet guide vanes |
EP3054086B1 (en) * | 2015-02-05 | 2017-09-13 | General Electric Technology GmbH | Steam turbine diffuser configuration |
JP6498534B2 (en) * | 2015-06-09 | 2019-04-10 | 川崎重工業株式会社 | Exhaust diffuser |
JP6546481B2 (en) * | 2015-08-31 | 2019-07-17 | 川崎重工業株式会社 | Exhaust diffuser |
US10563543B2 (en) * | 2016-05-31 | 2020-02-18 | General Electric Company | Exhaust diffuser |
CN114658502B (en) * | 2022-03-31 | 2023-12-26 | 中国科学院工程热物理研究所 | Support sleeve, support mechanism and design method of support sleeve |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895667A (en) * | 1954-04-09 | 1959-07-21 | Edward A Stalker | Elastic fluid machine for increasing the pressure of a fluid |
US3625630A (en) * | 1970-03-27 | 1971-12-07 | Caterpillar Tractor Co | Axial flow diffuser |
EP0581978B1 (en) * | 1992-08-03 | 1996-01-03 | Asea Brown Boveri Ag | Multi-zone diffuser for turbomachine |
DE19650656C1 (en) * | 1996-12-06 | 1998-06-10 | Mtu Muenchen Gmbh | Turbo machine with transonic compressor stage |
US8313286B2 (en) * | 2008-07-28 | 2012-11-20 | Siemens Energy, Inc. | Diffuser apparatus in a turbomachine |
US8061980B2 (en) * | 2008-08-18 | 2011-11-22 | United Technologies Corporation | Separation-resistant inlet duct for mid-turbine frames |
US8668449B2 (en) * | 2009-06-02 | 2014-03-11 | Siemens Energy, Inc. | Turbine exhaust diffuser with region of reduced flow area and outer boundary gas flow |
US8647057B2 (en) * | 2009-06-02 | 2014-02-11 | Siemens Energy, Inc. | Turbine exhaust diffuser with a gas jet producing a coanda effect flow control |
US8337153B2 (en) * | 2009-06-02 | 2012-12-25 | Siemens Energy, Inc. | Turbine exhaust diffuser flow path with region of reduced total flow area |
JP5398405B2 (en) * | 2009-07-30 | 2014-01-29 | 三菱重工業株式会社 | Channel structure and gas turbine exhaust diffuser |
US20110162339A1 (en) * | 2011-01-07 | 2011-07-07 | Braden Manufacturing, Llc | Flow distribution of gas turbine exhaust using walls shaped to facilitate improved gas flow |
US8756936B2 (en) * | 2011-10-19 | 2014-06-24 | Siemens Aktiengesellschaft | Exhaust diffuser adjustment system for a gas turbine engine |
-
2012
- 2012-03-30 EP EP12162686.5A patent/EP2644846A1/en not_active Withdrawn
-
2013
- 2013-03-25 CN CN201380018329.4A patent/CN104204423B/en active Active
- 2013-03-25 IN IN7825DEN2014 patent/IN2014DN07825A/en unknown
- 2013-03-25 WO PCT/EP2013/056263 patent/WO2013144081A1/en active Application Filing
- 2013-03-25 JP JP2015502272A patent/JP6275111B2/en not_active Expired - Fee Related
- 2013-03-25 EP EP13712242.0A patent/EP2831383B1/en active Active
-
2014
- 2014-09-26 US US14/498,201 patent/US10006309B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2013144081A1 (en) | 2013-10-03 |
CN104204423A (en) | 2014-12-10 |
JP6275111B2 (en) | 2018-02-07 |
EP2831383A1 (en) | 2015-02-04 |
JP2015514898A (en) | 2015-05-21 |
EP2831383B1 (en) | 2017-09-20 |
US20150016982A1 (en) | 2015-01-15 |
US10006309B2 (en) | 2018-06-26 |
CN104204423B (en) | 2016-05-11 |
EP2644846A1 (en) | 2013-10-02 |
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