EP2312127A4 - Rotor for low-pressure turbine - Google Patents

Rotor for low-pressure turbine

Info

Publication number: EP2312127A4
Authority: EP; European Patent Office
Prior art keywords: rotor; low; pressure turbine; turbine; pressure
Prior art date: 2008-08-11
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP09806066.8A

Other languages

German (de)

French (fr)

Other versions

EP2312127A1 (en

Inventor

Shin Nishimoto

Yoshinori Tanaka

Ryuichi Yamamoto

Kenji Kawasaki

Takashi Shige

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 Power 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.)

2008-08-11

Filing date

2009-07-30

Publication date

2015-01-07

2009-07-30 Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd

2011-04-20 Publication of EP2312127A1 publication Critical patent/EP2312127A1/en

2015-01-07 Publication of EP2312127A4 publication Critical patent/EP2312127A4/en

Status Withdrawn legal-status Critical Current

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
- F01D5/02—Blade-carrying members, e.g. rotors
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- 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
- F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
- F01D1/02—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines
- F01D1/04—Non-positive-displacement machines or engines, e.g. steam turbines with stationary working-fluid guiding means and bladed or like rotor, e.g. multi-bladed impulse steam turbines traversed by the working-fluid substantially axially
- 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
- 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
- F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
- F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
- F01D5/063—Welded rotors
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/13—Refractory metals, i.e. Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
- F05D2300/132—Chromium
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/177—Ni - Si alloys

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Pressure Welding/Diffusion-Bonding (AREA)

EP09806066.8A 2008-08-11 2009-07-30 Rotor for low-pressure turbine Withdrawn EP2312127A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2008207421		2008-08-11
PCT/JP2009/063896 WO2010018773A1 (en)	2008-08-11	2009-07-30	Rotor for low-pressure turbine

Publications (2)

Publication Number	Publication Date
EP2312127A1 EP2312127A1 (en)	2011-04-20
EP2312127A4 true EP2312127A4 (en)	2015-01-07

Family

ID=41668918

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP09806066.8A Withdrawn EP2312127A4 (en)	2008-08-11	2009-07-30	Rotor for low-pressure turbine

Country Status (6)

Country	Link
US (1)	US20100202891A1 (en)
EP (1)	EP2312127A4 (en)
JP (1)	JP4995317B2 (en)
KR (2)	KR20130051014A (en)
CN (1)	CN101772622A (en)
WO (1)	WO2010018773A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2012207594A (en) *	2011-03-30	2012-10-25	Mitsubishi Heavy Ind Ltd	Rotor of rotary machine, and rotary machine
US20130323075A1 (en) *	2012-06-04	2013-12-05	General Electric Company	Nickel-chromium-molybdenum-vanadium alloy and turbine component
EP3269924A1 (en)	2016-07-14	2018-01-17	Siemens Aktiengesellschaft	Rotating shaft and method for producing a rotating shaft

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4962586A (en) *	1989-11-29	1990-10-16	Westinghouse Electric Corp.	Method of making a high temperature - low temperature rotor for turbines
EP0964135A2 (en) *	1998-06-09	1999-12-15	Mitsubishi Heavy Industries, Ltd.	Steam turbine rotor welded together from different materials
EP1672173A2 (en) *	2004-12-14	2006-06-21	Kabushi Kaisha Toshiba	Low-pressure steam turbine rotor
WO2007073976A1 (en) *	2005-12-22	2007-07-05	Alstom Technology Ltd	Method of producing a welded rotor of a low-pressure steam turbine by means of build-up welding and stress-free annealing
EP1860279A1 (en) *	2006-05-26	2007-11-28	Siemens Aktiengesellschaft	Welded LP-turbine shaft
EP1911932A2 (en) *	2006-10-04	2008-04-16	Kabushiki Kaisha Toshiba	Turbine rotor and steam turbine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS57126958A (en) *	1981-01-28	1982-08-06	Toshiba Corp	Low alloy steel for rotor
JPS57176305A (en) *	1981-04-24	1982-10-29	Hitachi Ltd	Steam turbine rotor
JP3315800B2 (en) *	1994-02-22	2002-08-19	株式会社日立製作所	Steam turbine power plant and steam turbine
JP3905739B2 (en) *	2001-10-25	2007-04-18	三菱重工業株式会社	12Cr alloy steel for turbine rotor, method for producing the same, and turbine rotor
JP2003145271A (en) *	2001-11-13	2003-05-20	Mitsubishi Heavy Ind Ltd	Method for welding different kinds of steel grades
JP4783053B2 (en) *	2005-04-28	2011-09-28	株式会社東芝	Steam turbine power generation equipment
JP2007278064A (en) *	2006-04-03	2007-10-25	Hitachi Ltd	Steam turbine welded rotor and method of manufacturing it, and steam turbine and power generating plant using it
JP4805728B2 (en) *	2006-05-31	2011-11-02	株式会社東芝	Steam turbine rotor and steam turbine
JP5011931B2 (en) *	2006-10-06	2012-08-29	株式会社日立製作所	Steam turbine welding rotor

2009
- 2009-07-30 CN CN200980100092A patent/CN101772622A/en active Pending
- 2009-07-30 KR KR1020137009982A patent/KR20130051014A/en active Search and Examination
- 2009-07-30 JP JP2010502367A patent/JP4995317B2/en not_active Expired - Fee Related
- 2009-07-30 WO PCT/JP2009/063896 patent/WO2010018773A1/en active Application Filing
- 2009-07-30 US US12/674,022 patent/US20100202891A1/en not_active Abandoned
- 2009-07-30 EP EP09806066.8A patent/EP2312127A4/en not_active Withdrawn
- 2009-07-30 KR KR1020107002529A patent/KR20100033421A/en active Application Filing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4962586A (en) *	1989-11-29	1990-10-16	Westinghouse Electric Corp.	Method of making a high temperature - low temperature rotor for turbines
EP0964135A2 (en) *	1998-06-09	1999-12-15	Mitsubishi Heavy Industries, Ltd.	Steam turbine rotor welded together from different materials
EP1672173A2 (en) *	2004-12-14	2006-06-21	Kabushi Kaisha Toshiba	Low-pressure steam turbine rotor
WO2007073976A1 (en) *	2005-12-22	2007-07-05	Alstom Technology Ltd	Method of producing a welded rotor of a low-pressure steam turbine by means of build-up welding and stress-free annealing
EP1860279A1 (en) *	2006-05-26	2007-11-28	Siemens Aktiengesellschaft	Welded LP-turbine shaft
EP1911932A2 (en) *	2006-10-04	2008-04-16	Kabushiki Kaisha Toshiba	Turbine rotor and steam turbine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010018773A1 *

Also Published As

Publication number	Publication date
JP4995317B2 (en)	2012-08-08
KR20100033421A (en)	2010-03-29
US20100202891A1 (en)	2010-08-12
JPWO2010018773A1 (en)	2012-01-26
CN101772622A (en)	2010-07-07
KR20130051014A (en)	2013-05-16
EP2312127A1 (en)	2011-04-20
WO2010018773A1 (en)	2010-02-18

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EP2357320A4 (en)	2012-04-11	Impeller for turbine
GB2492279B (en)	2013-03-13	Bladed rotor
EP2312127A4 (en)	2015-01-07	Rotor for low-pressure turbine
GB0810388D0 (en)	2008-07-09	Parallel turbine
PL2406464T3 (en)	2015-11-30	Rotor for turbomachines

Legal Events

Date	Code	Title	Description
2011-03-18	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
2011-04-20	17P	Request for examination filed	Effective date: 20100216
2011-04-20	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
2011-04-20	AX	Request for extension of the european patent	Extension state: AL BA RS
2011-11-16	DAX	Request for extension of the european patent (deleted)
2015-01-07	A4	Supplementary search report drawn up and despatched	Effective date: 20141209
2015-01-07	RIC1	Information provided on ipc code assigned before grant	Ipc: F01D 25/00 20060101AFI20141203BHEP Ipc: F01D 1/04 20060101ALI20141203BHEP Ipc: F01D 5/02 20060101ALI20141203BHEP Ipc: F01D 3/02 20060101ALI20141203BHEP Ipc: F01D 5/06 20060101ALI20141203BHEP
2015-04-22	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
2015-11-25	17Q	First examination report despatched	Effective date: 20151022
2016-07-29	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2016-08-31	18D	Application deemed to be withdrawn	Effective date: 20160302