EP0911488A4 - Gas turbine cooling stationary blade - Google Patents

Gas turbine cooling stationary blade

Info

Publication number: EP0911488A4
Authority: EP; European Patent Office
Prior art keywords: gas turbine; stationary blade; turbine cooling; cooling stationary; blade
Prior art date: 1997-05-01
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

Application number

EP98917726A

Other languages

German (de)

French (fr)

Other versions

EP0911488A1 (en

EP0911488B1 (en

Inventor

Yasuoki Tomita

Sunao Aoki

Kiyoshi Suenaga

Tatsuo Ishiguro

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Mitsubishi Heavy Industries Ltd

Original Assignee

Mitsubishi Heavy Industries Ltd

Priority date (The priority date 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 date listed.)

1997-05-01

Filing date

1998-04-28

Publication date

2000-11-29

1998-04-28 Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd

1999-04-28 Publication of EP0911488A1 publication Critical patent/EP0911488A1/en

2000-11-29 Publication of EP0911488A4 publication Critical patent/EP0911488A4/en

2004-01-28 Application granted granted Critical

2004-01-28 Publication of EP0911488B1 publication Critical patent/EP0911488B1/en

2018-04-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- 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
- 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
- F05D2240/10—Stators
- 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
- F05D2240/80—Platforms for stationary or moving blades
- F05D2240/81—Cooled platforms
- 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
- F05D2260/221—Improvement of heat transfer
- F05D2260/2214—Improvement of heat transfer by increasing the heat transfer surface
- F05D2260/22141—Improvement of heat transfer by increasing the heat transfer surface using fins or ribs

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Turbine Rotor Nozzle Sealing (AREA)

EP98917726A 1997-05-01 1998-04-28 Gas turbine cooled stationary blade Expired - Lifetime EP0911488B1 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP11384597A JP3276305B2 (en)	1997-05-01	1997-05-01	Gas turbine cooling vanes
JP113845/97		1997-05-01
JP11384597		1997-05-01
PCT/JP1998/001958 WO1998050684A1 (en)	1997-05-01	1998-04-28	Gas turbine cooling stationary blade

Publications (3)

Publication Number	Publication Date
EP0911488A1 EP0911488A1 (en)	1999-04-28
EP0911488A4 true EP0911488A4 (en)	2000-11-29
EP0911488B1 EP0911488B1 (en)	2004-01-28

Family

ID=14622507

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP98917726A Expired - Lifetime EP0911488B1 (en)	1997-05-01	1998-04-28	Gas turbine cooled stationary blade

Country Status (5)

Country	Link
EP (1)	EP0911488B1 (en)
JP (1)	JP3276305B2 (en)
CA (1)	CA2261184C (en)
DE (1)	DE69821312T2 (en)
WO (1)	WO1998050684A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4508482B2 (en)	2001-07-11	2010-07-21	三菱重工業株式会社	Gas turbine stationary blade
EP1571296A1 (en) *	2004-03-01	2005-09-07	Alstom Technology Ltd	Cooled blade of a turbomachine and method of cooling
US7147439B2 (en) *	2004-09-15	2006-12-12	General Electric Company	Apparatus and methods for cooling turbine bucket platforms
US7309212B2 (en) *	2005-11-21	2007-12-18	General Electric Company	Gas turbine bucket with cooled platform leading edge and method of cooling platform leading edge
JP4931157B2 (en) *	2006-02-14	2012-05-16	株式会社Ｉｈｉ	Cooling structure
JP4979983B2 (en) *	2006-05-29	2012-07-18	三井造船株式会社	Dust adhesion prevention device for furnace top pressure recovery turbine blade
JP4801618B2 (en) *	2007-03-30	2011-10-26	三菱重工業株式会社	Gas turbine stationary blade and gas turbine provided with the same
US8814517B2 (en) *	2010-09-30	2014-08-26	General Electric Company	Apparatus and methods for cooling platform regions of turbine rotor blades
US8840369B2 (en) *	2010-09-30	2014-09-23	General Electric Company	Apparatus and methods for cooling platform regions of turbine rotor blades
US8777568B2 (en) *	2010-09-30	2014-07-15	General Electric Company	Apparatus and methods for cooling platform regions of turbine rotor blades
US8684664B2 (en) *	2010-09-30	2014-04-01	General Electric Company	Apparatus and methods for cooling platform regions of turbine rotor blades
US8858160B2 (en) *	2011-11-04	2014-10-14	General Electric Company	Bucket assembly for turbine system
US8905714B2 (en) *	2011-12-30	2014-12-09	General Electric Company	Turbine rotor blade platform cooling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH04311604A (en) *	1991-04-11	1992-11-04	Toshiba Corp	Turbine stationary blade
JPH0565802A (en) *	1991-09-06	1993-03-19	Toshiba Corp	Gas turbine
JPH0693801A (en) *	1992-09-17	1994-04-05	Hitachi Ltd	Gas turbine
US5320483A (en) *	1992-12-30	1994-06-14	General Electric Company	Steam and air cooling for stator stage of a turbine
EP0698723A2 (en) *	1994-08-23	1996-02-28	General Electric Company	Turbine stator vane segment having closed cooling circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2953842B2 (en) *	1991-12-16	1999-09-27	東北電力株式会社	Turbine vane
JP3188105B2 (en) *	1994-07-11	2001-07-16	三菱重工業株式会社	Gas turbine blades

1997
- 1997-05-01 JP JP11384597A patent/JP3276305B2/en not_active Expired - Fee Related
1998
- 1998-04-28 EP EP98917726A patent/EP0911488B1/en not_active Expired - Lifetime
- 1998-04-28 DE DE69821312T patent/DE69821312T2/en not_active Expired - Lifetime
- 1998-04-28 WO PCT/JP1998/001958 patent/WO1998050684A1/en active IP Right Grant
- 1998-04-28 CA CA002261184A patent/CA2261184C/en not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH04311604A (en) *	1991-04-11	1992-11-04	Toshiba Corp	Turbine stationary blade
JPH0565802A (en) *	1991-09-06	1993-03-19	Toshiba Corp	Gas turbine
JPH0693801A (en) *	1992-09-17	1994-04-05	Hitachi Ltd	Gas turbine
US5320483A (en) *	1992-12-30	1994-06-14	General Electric Company	Steam and air cooling for stator stage of a turbine
EP0698723A2 (en) *	1994-08-23	1996-02-28	General Electric Company	Turbine stator vane segment having closed cooling circuit

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 133 (M - 1383) 19 March 1993 (1993-03-19) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 379 (M - 1447) 16 July 1993 (1993-07-16) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 360 (M - 1634) 7 July 1994 (1994-07-07) *
See also references of WO9850684A1 *

Also Published As

Publication number	Publication date
DE69821312T2 (en)	2005-08-04
CA2261184A1 (en)	1998-11-12
CA2261184C (en)	2002-07-09
EP0911488A1 (en)	1999-04-28
JP3276305B2 (en)	2002-04-22
WO1998050684A1 (en)	1998-11-12
EP0911488B1 (en)	2004-01-28
DE69821312D1 (en)	2004-03-04
JPH10306706A (en)	1998-11-17

Legal Events

Date	Code	Title	Description
1999-03-12	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
1999-04-28	17P	Request for examination filed	Effective date: 19981230
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2000-11-29	A4	Supplementary search report drawn up and despatched	Effective date: 20001017
2000-11-29	AK	Designated contracting states	Kind code of ref document: A4 Designated state(s): CH DE FR GB IT LI
2000-11-29	RIC1	Information provided on ipc code assigned before grant	Free format text: 7F 01D 9/04 A, 7F 01D 25/12 B, 7F 01D 5/18 B
2002-12-04	17Q	First examination report despatched	Effective date: 20021017
2003-07-31	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2003-08-13	RTI1	Title (correction)	Free format text: GAS TURBINE COOLED STATIONARY BLADE
2003-11-21	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2003-12-12	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2004-01-07	RIN1	Information on inventor provided before grant (corrected)	Inventor name: ISHIGURO, TATSUOC/O TAKASAGO RES. & DEVEL. CEN Inventor name: SUENAGA, KIYOSHIC/O TAKASAGO RES. & DEVEL. CEN Inventor name: AOKI, SUNAOC/O TAKASAGO MACHINERY WORKS Inventor name: TOMITA, YASUOKIC/O TAKASAGO MACHINERY WORKS
2004-01-28	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI
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Publication	Publication Date	Title
EP0911489A4 (en)	2000-11-29	Gas turbine cooling stationary blade
EP0894946A4 (en)	2000-11-29	Gas turbine cooling stationary vane
EP0945594A4 (en)	2001-12-05	Cooled moving blade for gas turbines
CZ113699A3 (en)	1999-08-11	Gas turbine blade cooling system
EP0930419A4 (en)	2001-03-07	Gas turbine blade
EP0814234A4 (en)	1999-03-24	Stationary blade for gas turbine
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IL115715A0 (en)	1996-01-19	Gas turbine vane with enhanced cooling
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