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1. WO2007030925 - VANE ASSEMBLY WITH IMPROVED VANE ROOTS

Publication Number WO/2007/030925
Publication Date 22.03.2007
International Application No. PCT/CA2006/001499
International Filing Date 12.09.2006
Chapter 2 Demand Filed 12.07.2007
IPC
F01D 9/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
9Stators
02Nozzles; Nozzle boxes; Stator blades; Guide conduits
04forming ring or sector
F01D 5/03 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
02Blade-carrying members, e.g. rotors
03Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors
F01D 5/30 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
30Fixing blades to rotors; Blade roots
F01D 9/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
9Stators
02Nozzles; Nozzle boxes; Stator blades; Guide conduits
CPC
F01D 9/042
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
9Stators
02Nozzles; Nozzle boxes; Stator blades; Guide conduits ; , e.g. individual nozzles
04forming ring or sector
042fixing blades to stators
F02C 7/05
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, 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
04Air intakes for gas-turbine plants or jet-propulsion plants
05having provisions for obviating the penetration of damaging objects or particles
F05D 2260/30
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2260Function
30Retaining components in desired mutual position
F05D 2300/222
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2300Materials; Properties thereof
20Oxide or non-oxide ceramics
22Non-oxide ceramics
222Silicon
F05D 2300/43
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2300Materials; Properties thereof
40Organic materials
43Synthetic polymers, e.g. plastics; Rubber
F05D 2300/431
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2300Materials; Properties thereof
40Organic materials
43Synthetic polymers, e.g. plastics; Rubber
431Rubber
Applicants
  • PRATT & WHITNEY CANADA CORP. [CA]/[CA] (AllExceptUS)
  • BARNETT, Barry [CA]/[CA] (UsOnly)
  • DENIS, David [CA]/[CA] (UsOnly)
Inventors
  • BARNETT, Barry
  • DENIS, David
Agents
  • OGILVY RENAULT LLP / S.E.N.C.R.L., S.R.L.
Priority Data
11/223,12912.09.2005US
11/467,41325.08.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VANE ASSEMBLY WITH IMPROVED VANE ROOTS
(FR) ENSEMBLE D'AUBES A PIEDS D'AUBE AMELIORES
Abstract
(EN)
A vane (30) for a vane assembly (20) of a gas turbine engine (10) includes a vane root (32) connected to the airfoil portion (36) opposite a tip (34) thereof. The vane root includes a platform (46) and a button portion (58) interconnecting the platform and the airfoil portion. The button portion has relatively blunt leading and trailing ends (62,64) which respectively protrude beyond leading and trailing edges (38,40) of the airfoil portion. The vanes are inserted into a series of openings (74) in a turbine casing (24), with a grommet (66) sealingly interposed between the button portion and the openings. During a foreign object damage event, a vane which is hit will move rearward as a result of the impact - the relatively blunt leading and trailing ends (62,64) of the button portion serve to reduce the chances that the grommet will be cut in such an event.
(FR)
La présente invention a trait à une aube (30) destinée à un ensemble d'aubes (20) d'une turbine à gaz (10) comportant un pied d'aube (32) relié à une portion de surface portante (36) en regard d'une extrémité (34) de celle-ci. Le pied d'aube comporte une plate-forme (46) et une portion de point d'impact (58) reliant la plate-forme et la portion de surface portante. La portion de point d'impact présente des extrémités d'attaque et de fuite relativement émoussées (62, 64) sont en saillie respectivement au-delà de bords d'attaque et de fuite (38, 40) de la portion de surface portante. Les aubes sont insérées dans une série d'ouvertures (74) dans un corps de turbine (24), avec une rondelle (66) interposée de manière étanche entre la portion de point d'impact et les ouvertures. Lors d'un événement de dommage par un corps étranger, une aube frappée va se déplacer vers l'arrière suite à l'impact, les extrémités d'attaque et de fuite relativement émoussées (62, 64) de la portion de point d'impact servant à réduire les risques que la rondelle soit coupée dans une telle éventualité.
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