ITMI911355A1 - Paletta fissa perfezionata dello stadio di comando per l'impiego nel funzionamento ad arco parziale - Google Patents
Paletta fissa perfezionata dello stadio di comando per l'impiego nel funzionamento ad arco parzialeInfo
- Publication number
- ITMI911355A1 ITMI911355A1 IT91MI001355A ITMI911355A ITMI911355A1 IT MI911355 A1 ITMI911355 A1 IT MI911355A1 IT 91MI001355 A IT91MI001355 A IT 91MI001355A IT MI911355 A ITMI911355 A IT MI911355A IT MI911355 A1 ITMI911355 A1 IT MI911355A1
- Authority
- IT
- Italy
- Prior art keywords
- perfected
- fixed blade
- control stage
- partial arc
- arc operation
- 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
- 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
- F01D5/141—Shape, i.e. outer, aerodynamic form
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Control Of Turbines (AREA)
Abstract
Per turbine a vapore in grado di essere fatte funzionare ad arco parziale, l'arco primario di ammissione è munito di palette fisse aventi un bordo posteriore più spesso in confronto ai bordi posteriori delle palette fisse rimanenti cosicché viene evitata la scheggiatura e l'erosione dovuta ad un grande carico di pressione durante il funzionamento a carico parziale.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/534,565 US5080558A (en) | 1990-06-07 | 1990-06-07 | Control stage nozzle vane for use in partial arc operation |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI911355A0 ITMI911355A0 (it) | 1991-05-17 |
ITMI911355A1 true ITMI911355A1 (it) | 1992-11-17 |
IT1305886B1 IT1305886B1 (it) | 2001-05-21 |
Family
ID=24130605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1991MI001355A IT1305886B1 (it) | 1990-06-07 | 1991-05-17 | Paletta fissa perfezionata dello stadio di comando per l'impiego nelfunzionamento ad arco parziale |
Country Status (7)
Country | Link |
---|---|
US (1) | US5080558A (it) |
JP (1) | JPH0776521B2 (it) |
KR (1) | KR100228927B1 (it) |
CN (1) | CN1027093C (it) |
CA (1) | CA2044027A1 (it) |
ES (1) | ES2044747B1 (it) |
IT (1) | IT1305886B1 (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997043720A1 (en) | 1996-05-14 | 1997-11-20 | Ricoh Company, Ltd. | Java printer |
JP3772019B2 (ja) * | 1998-04-21 | 2006-05-10 | 株式会社東芝 | 蒸気タービン |
US8292567B2 (en) * | 2006-09-14 | 2012-10-23 | Caterpillar Inc. | Stator assembly including bleed ports for turbine engine compressor |
EP2157287A1 (en) | 2008-08-22 | 2010-02-24 | ALSTOM Technology Ltd | Multifrequency control stage for improved dampening of excitation factors |
US8739539B2 (en) * | 2010-11-08 | 2014-06-03 | Dresser-Rand Company | Alternative partial steam admission arc for reduced noise generation |
DE102011006658A1 (de) * | 2011-04-01 | 2012-02-16 | Siemens Aktiengesellschaft | Wirkungsgraderhöhung einer Regelstufe einer Gleichdruckturbine |
US20140286758A1 (en) * | 2013-03-19 | 2014-09-25 | Abb Turbo Systems Ag | Nozzle ring with non-uniformly distributed airfoils and uniform throat area |
DE102015224283A1 (de) * | 2015-12-04 | 2017-06-08 | MTU Aero Engines AG | Leitschaufelcluster für eine Strömungsmaschine |
US20210062657A1 (en) * | 2019-08-30 | 2021-03-04 | General Electric Company | Control stage blades for turbines |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1755321A (en) * | 1926-04-02 | 1930-04-22 | Welding Engineers | Welding hydraulic apparatus |
GB309235A (en) * | 1928-01-11 | 1929-04-11 | Charles Algernon Parsons | Improvements in and relating to turbines |
US3699623A (en) * | 1970-10-20 | 1972-10-24 | United Aircraft Corp | Method for fabricating corrosion resistant composites |
JPS5420207A (en) * | 1977-07-15 | 1979-02-15 | Mitsui Eng & Shipbuild Co Ltd | Construction for preventing dust of axial flow turbine |
JPS5848703A (ja) * | 1981-09-18 | 1983-03-22 | Hitachi Ltd | タ−ビン静止翼列 |
JPS5963305A (ja) * | 1982-04-07 | 1984-04-11 | Hitachi Ltd | 蒸気タ−ビン用部材 |
US4780057A (en) * | 1987-05-15 | 1988-10-25 | Westinghouse Electric Corp. | Partial arc steam turbine |
JPS6483803A (en) * | 1987-09-25 | 1989-03-29 | Hitachi Ltd | Structure for arranging steam stationary blade |
-
1990
- 1990-06-07 US US07/534,565 patent/US5080558A/en not_active Expired - Lifetime
-
1991
- 1991-05-17 IT IT1991MI001355A patent/IT1305886B1/it active
- 1991-06-04 JP JP3132837A patent/JPH0776521B2/ja not_active Expired - Lifetime
- 1991-06-05 CN CN91103864A patent/CN1027093C/zh not_active Expired - Fee Related
- 1991-06-05 KR KR1019910009277A patent/KR100228927B1/ko not_active IP Right Cessation
- 1991-06-06 CA CA002044027A patent/CA2044027A1/en not_active Abandoned
- 1991-06-06 ES ES09101369A patent/ES2044747B1/es not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1027093C (zh) | 1994-12-21 |
JPH0776521B2 (ja) | 1995-08-16 |
ES2044747B1 (es) | 1996-07-16 |
KR100228927B1 (ko) | 1999-12-01 |
ES2044747A2 (es) | 1994-01-01 |
JPH04231604A (ja) | 1992-08-20 |
IT1305886B1 (it) | 2001-05-21 |
ES2044747R (it) | 1996-01-01 |
CN1057090A (zh) | 1991-12-18 |
ITMI911355A0 (it) | 1991-05-17 |
CA2044027A1 (en) | 1991-12-08 |
KR920001066A (ko) | 1992-01-29 |
US5080558A (en) | 1992-01-14 |
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