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1. WO2020112136 - MID-FRAME SECTION OF A GAS TURBINE ENGINE AND CORRESPONDING METHOD OF ADJUSTING RADIAL ROTOR CLEARANCE

Publication Number WO/2020/112136
Publication Date 04.06.2020
International Application No. PCT/US2018/063285
International Filing Date 30.11.2018
IPC
F01D 11/02 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
11Preventing or minimising internal leakage of working fluid, e.g. between stages
02by non-contact sealings, e.g. of labyrinth type
F04D 29/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
08Sealings
10Shaft sealings
CPC
F01D 11/025
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
11Preventing or minimising internal leakage of working-fluid, e.g. between stages
02by non-contact sealings, e.g. of labyrinth type
025Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations
F04D 29/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
08Sealings
10Shaft sealings
F04D 29/541
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
40Casings; Connections of working fluid
52for axial pumps
54Fluid-guiding means, e.g. diffusers
541Specially adapted for elastic fluid pumps
F05D 2230/64
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
2230Manufacture
60Assembly methods
64using positioning or alignment devices for aligning or centring, e.g. pins
F05D 2230/644
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
2230Manufacture
60Assembly methods
64using positioning or alignment devices for aligning or centring, e.g. pins
644for adjusting the position or the alignment, e.g. wedges or eccenters
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
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE]
  • SIEMENS ENERGY, INC. [US]/[US] (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Inventors
  • BLASZCZAK, Grzegorz
  • PASPULATI, Amit K.
  • BOSU, Sudeep
  • SALUNKHE, Anil L.
  • AKKI, Kashinath
Agents
  • REN, Ye
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MID-FRAME SECTION OF A GAS TURBINE ENGINE AND CORRESPONDING METHOD OF ADJUSTING RADIAL ROTOR CLEARANCE
(FR) SECTION DE BÂTI CENTRALE D'UN MOTEUR À TURBINE À GAZ ET PROCÉDÉ CORRESPONDANT D'AJUSTEMENT DE DÉGAGEMENT RADIAL DE ROTOR
Abstract
(EN)
A mid-frame section of a gas turbine engine having a radial clearance adjustability and a method for adjusting a radial clearance to a rotor in a mid-frame section of a gas turbine engine are presented. The mid-frame section includes a radial clearance adjusting assembly arranged at a compressor exit diffusor. The radial clearance adjusting assembly is configured to adjust the radial clearance to the rotor such that the rotor is concentric with respect to components of the mid- frame section, such as the compressor exit diffusor and shaft cover. The radial clearance adjusting assembly provides radial clearance adjustability in the mid-frame section at multiple locations, such as at forward end and aft end of the compressor exit diffusor. The radial clearance adjusting assembly improves efficiency of the gas turbine and reduces service and operating cost of the gas turbine engine. A method of adjusting radial clearance to a rotor in a mid-frame section of a gas turbine engine is also provided.
(FR)
L'invention concerne une section de bâti centrale d'un moteur à turbine à gaz ayant une possibilité d'ajustement de dégagement radial et un procédé pour ajuster un dégagement radial à un rotor dans une section de bâti centrale d'un moteur à turbine à gaz. La section de bâti centrale comprend un ensemble ajustement de dégagement radial disposé sur un diffuseur de sortie de compresseur. L'ensemble ajustement de dégagement radial est configuré pour ajuster le dégagement radial au rotor de telle sorte que le rotor est concentrique par rapport à des composants de la section de bâti centrale, tels que le diffuseur de sortie de compresseur et le capot d'arbre. L'ensemble ajustement de dégagement radial fournit une possibilité d'ajustement de dégagement radial dans la section de bâti centrale en de multiples emplacements, par exemple à l'extrémité avant et à l'extrémité arrière du diffuseur de sortie de compresseur. L'ensemble ajustement de dégagement radial améliore le rendement de la turbine à gaz et réduit le coût d'entretien et de fonctionnement du moteur à turbine à gaz. L'invention concerne également un procédé d'ajustement de dégagement radial à un rotor dans une section de bâti centrale d'un moteur à turbine à gaz.
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