GB2451568B - Rotor blade - Google Patents

Rotor blade

Info

Publication number: GB2451568B
Authority: GB; United Kingdom
Prior art keywords: rotor blade; rotor; blade
Prior art date: 2007-07-31
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.): Expired - Fee Related

Application number

GB0813750.7A

Other versions

GB2451568A (en

GB0813750D0 (en

Inventor

Omer Duane Erdmann

D Keith Patrick

Dustin Alfred Placke

John Peter Heyward

Francis Bobie

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.)

General Electric Co

Original Assignee

General Electric Co

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.)

2007-07-31

Filing date

2008-07-28

Publication date

2012-06-27

2008-07-28 Application filed by General Electric Co filed Critical General Electric Co

2008-09-03 Publication of GB0813750D0 publication Critical patent/GB0813750D0/en

2009-02-04 Publication of GB2451568A publication Critical patent/GB2451568A/en

2012-06-27 Application granted granted Critical

2012-06-27 Publication of GB2451568B publication Critical patent/GB2451568B/en

Status Expired - Fee Related legal-status Critical Current

2028-07-28 Anticipated expiration legal-status Critical

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
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
- 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
- F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
- F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

GB0813750.7A 2007-07-31 2008-07-28 Rotor blade Expired - Fee Related GB2451568B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US11/831,078 US20090097979A1 (en)	2007-07-31	2007-07-31	Rotor blade

Publications (3)

Publication Number	Publication Date
GB0813750D0 GB0813750D0 (en)	2008-09-03
GB2451568A GB2451568A (en)	2009-02-04
GB2451568B true GB2451568B (en)	2012-06-27

Family

ID=39747028

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0813750.7A Expired - Fee Related GB2451568B (en)	2007-07-31	2008-07-28	Rotor blade

Country Status (4)

Country	Link
US (1)	US20090097979A1 (en)
JP (2)	JP5450997B2 (en)
DE (1)	DE102008002944A1 (en)
GB (1)	GB2451568B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102008061800A1 (en) *	2008-12-11	2010-06-17	Rolls-Royce Deutschland Ltd & Co Kg	Segmented sealing lips for labyrinth seals
DE102009030566A1 (en) *	2009-06-26	2010-12-30	Mtu Aero Engines Gmbh	Shroud segment for placement on a bucket
FR2967714B1 (en) *	2010-11-22	2012-12-14	Snecma	MOBILE AUB OF TURBOMACHINE
US20120195742A1 (en) *	2011-01-28	2012-08-02	Jain Sanjeev Kumar	Turbine bucket for use in gas turbine engines and methods for fabricating the same
FR2985759B1 (en)	2012-01-17	2014-03-07	Snecma	MOBILE AUB OF TURBOMACHINE
EP2620653B1 (en) *	2012-01-25	2015-06-24	Rolls-Royce plc	A turbomachine casing assembly with blade containment cavity
US10597756B2 (en)	2012-03-24	2020-03-24	General Electric Company	Titanium aluminide intermetallic compositions
FR3001759B1 (en) *	2013-02-07	2015-01-16	Snecma	ROUGE AUBAGEE OF TURBOMACHINE
KR102040958B1 (en) *	2017-10-30	2019-11-05	두산중공업 주식회사	Sealing structure of rotor and steam turbine having the same
KR102011578B1 (en) *	2017-11-09	2019-10-21	두산중공업 주식회사	Cover structure of bucket and rotor and steamturbine having the same
US11105209B2 (en)	2018-08-28	2021-08-31	General Electric Company	Turbine blade tip shroud
US10907487B2 (en)	2018-10-16	2021-02-02	Honeywell International Inc.	Turbine shroud assemblies for gas turbine engines
JP7389574B2 (en) *	2019-06-28	2023-11-30	三菱重工航空エンジン株式会社	aircraft gas turbine
US11156110B1 (en)	2020-08-04	2021-10-26	General Electric Company	Rotor assembly for a turbine section of a gas turbine engine
US11655719B2 (en)	2021-04-16	2023-05-23	General Electric Company	Airfoil assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1505534A (en) *	1974-03-21	1978-03-30	Maschf Augsburg Nuernberg Ag	Turbines and compressors
JPS57102503A (en) *	1980-12-17	1982-06-25	Hitachi Ltd	Sealing structure for gap on tip of moving vane of turbine
GB2298246A (en) *	1995-02-23	1996-08-28	Bmw Rolls Royce Gmbh	Turbine-blad-tip-sealing arrangement comprising a shroud band
JPH10306702A (en) *	1997-05-08	1998-11-17	Mitsubishi Heavy Ind Ltd	Gas turbine blade
EP1262633A1 (en) *	2001-05-31	2002-12-04	Snecma Moteurs	Turbine blade with knife edge sealing
GB2399602A (en) *	2003-03-15	2004-09-22	Alstom	Gas turbine rotor blade
US20040208743A1 (en) *	2003-04-18	2004-10-21	Urban John Paul	Center-located cutter teeth on shrouded turbine blades
CA2525003A1 (en) *	2005-10-31	2007-04-30	Pratt & Whitney Canada Corp.	Shrouded turbine blades with locally increased contact faces

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1072233A (en) *	1912-11-07	1913-09-02	Emil Imle	Steam-turbine blade.
US3527544A (en) *	1968-12-12	1970-09-08	Gen Motors Corp	Cooled blade shroud
FR2552159B1 (en) *	1983-09-21	1987-07-10	Snecma	DEVICE FOR CONNECTING AND SEALING TURBINE STATOR BLADE SECTIONS
GB2251034B (en) *	1990-12-20	1995-05-17	Rolls Royce Plc	Shrouded aerofoils
GB9419712D0 (en) *	1994-09-30	1994-11-16	Rolls Royce Plc	A turbomachine aerofoil and a method of production
JPH08303204A (en) *	1995-05-08	1996-11-19	Ishikawajima Harima Heavy Ind Co Ltd	Gas turbine rotor blade seal structure
JP2001055902A (en) *	1999-08-18	2001-02-27	Toshiba Corp	Turbine blade
US6254345B1 (en) *	1999-09-07	2001-07-03	General Electric Company	Internally cooled blade tip shroud
DE50015514D1 (en) *	1999-12-20	2009-02-26	Sulzer Metco Ag	Profiled surface used as a rubbing layer in turbomachines
JP2001317303A (en) *	2000-05-11	2001-11-16	Toshiba Corp	Steam turbine
US6652226B2 (en) *	2001-02-09	2003-11-25	General Electric Co.	Methods and apparatus for reducing seal teeth wear
US6875476B2 (en) *	2003-01-15	2005-04-05	General Electric Company	Methods and apparatus for manufacturing turbine engine components
US7001144B2 (en) *	2003-02-27	2006-02-21	General Electric Company	Gas turbine and method for reducing bucket tip shroud creep rate
US6893216B2 (en) *	2003-07-17	2005-05-17	General Electric Company	Turbine bucket tip shroud edge profile
US6890150B2 (en) *	2003-08-12	2005-05-10	General Electric Company	Center-located cutter teeth on shrouded turbine blades
US7001152B2 (en) *	2003-10-09	2006-02-21	Pratt & Wiley Canada Corp.	Shrouded turbine blades with locally increased contact faces
JP2005127276A (en) *	2003-10-27	2005-05-19	Hitachi Ltd	Turbine blades and turbines
US6913445B1 (en) *	2003-12-12	2005-07-05	General Electric Company	Center located cutter teeth on shrouded turbine blades
WO2005061854A1 (en) *	2003-12-17	2005-07-07	Watson Cogeneration Company	Gas turbine tip shroud rails
US7066713B2 (en) *	2004-01-31	2006-06-27	United Technologies Corporation	Rotor blade for a rotary machine
US7094023B2 (en) *	2004-02-09	2006-08-22	United Technologies Corporation	Shroud honeycomb cutter
DE102004025321A1 (en) *	2004-05-19	2005-12-08	Alstom Technology Ltd	Turbomachine blade
JP4425746B2 (en) *	2004-08-25	2010-03-03	株式会社日立製作所	gas turbine
US20060280610A1 (en) *	2005-06-13	2006-12-14	Heyward John P	Turbine blade and method of fabricating same

2007
- 2007-07-31 US US11/831,078 patent/US20090097979A1/en not_active Abandoned
2008
- 2008-07-15 DE DE102008002944A patent/DE102008002944A1/en not_active Withdrawn
- 2008-07-23 JP JP2008189349A patent/JP5450997B2/en not_active Expired - Fee Related
- 2008-07-28 GB GB0813750.7A patent/GB2451568B/en not_active Expired - Fee Related
2013
- 2013-10-03 JP JP2013207847A patent/JP5576974B2/en not_active Expired - Fee Related

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1505534A (en) *	1974-03-21	1978-03-30	Maschf Augsburg Nuernberg Ag	Turbines and compressors
JPS57102503A (en) *	1980-12-17	1982-06-25	Hitachi Ltd	Sealing structure for gap on tip of moving vane of turbine
GB2298246A (en) *	1995-02-23	1996-08-28	Bmw Rolls Royce Gmbh	Turbine-blad-tip-sealing arrangement comprising a shroud band
JPH10306702A (en) *	1997-05-08	1998-11-17	Mitsubishi Heavy Ind Ltd	Gas turbine blade
EP1262633A1 (en) *	2001-05-31	2002-12-04	Snecma Moteurs	Turbine blade with knife edge sealing
GB2399602A (en) *	2003-03-15	2004-09-22	Alstom	Gas turbine rotor blade
US20040208743A1 (en) *	2003-04-18	2004-10-21	Urban John Paul	Center-located cutter teeth on shrouded turbine blades
CA2525003A1 (en) *	2005-10-31	2007-04-30	Pratt & Whitney Canada Corp.	Shrouded turbine blades with locally increased contact faces

Also Published As

Publication number	Publication date
JP5576974B2 (en)	2014-08-20
GB2451568A (en)	2009-02-04
JP5450997B2 (en)	2014-03-26
GB0813750D0 (en)	2008-09-03
JP2013256961A (en)	2013-12-26
DE102008002944A1 (en)	2009-02-05
JP2009036203A (en)	2009-02-19
US20090097979A1 (en)	2009-04-16

Publication	Publication Date	Title
GB0724612D0 (en)	2008-01-30	Rotor blades
GB2451568B (en)	2012-06-27	Rotor blade
GB0811391D0 (en)	2008-07-30	A rotor blade
GB2462131B (en)	2010-07-21	A Blade for a rotor
GB0814108D0 (en)	2008-09-10	Segmented rotor blade extension portion
GB2448886B (en)	2009-06-17	Turbomachine blade
GB0707426D0 (en)	2007-05-23	Blade arrangement
GB0808651D0 (en)	2008-06-18	Rotor blade monitoring
PL2010757T3 (en)	2013-11-29	Turbine blade
GB0815957D0 (en)	2008-10-08	Blades
EP2019186A4 (en)	2012-09-26	Blade
GB0815483D0 (en)	2008-10-01	Blade arrangement
GB0807358D0 (en)	2008-05-28	Fan blade
GB0715509D0 (en)	2007-09-19	Rotor
GB0906625D0 (en)	2009-05-27	Improved rotor blade
EP2351909A4 (en)	2012-03-28	Turbine blade
GB2438492B (en)	2011-08-24	Blades
GB0901129D0 (en)	2009-03-11	Rotor blade
GB0921650D0 (en)	2010-01-27	Fan blades
GB2460021B (en)	2010-09-22	Rotor blades
ZA201001031B (en)	2011-08-31	Turbine rotor blade
GB0614894D0 (en)	2006-09-06	Integrally Bladed Rotor
GB2492279B (en)	2013-03-13	Bladed rotor
GB2455095B (en)	2010-02-10	Turbine blade
GB0613441D0 (en)	2006-08-16	Blades

Legal Events

Date	Code	Title	Description
2019-03-27	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20180728