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1. WO2015038931 - SHIELDING POCKETS FOR CASE HOLES

Publication Number WO/2015/038931
Publication Date 19.03.2015
International Application No. PCT/US2014/055448
International Filing Date 12.09.2014
IPC
F02C 7/20 2006.1
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, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
20Mounting or supporting of plant; Accommodating heat expansion or creep
F01D 25/24 2006.1
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
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
24Casings; Casing parts, e.g. diaphragms, casing fastenings
F02C 7/24 2006.1
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, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
24Heat or noise insulation
F01D 25/08 2006.1
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
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
08Cooling; Heating; Heat insulation
CPC
F01D 25/14
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
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
08Cooling
14Casings modified therefor
F01D 25/24
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
25Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
24Casings
F05D 2250/20
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
2250Geometry
20Three-dimensional
F05D 2250/712
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
2250Geometry
70Shape
71curved
712concave
F05D 2250/713
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
2250Geometry
70Shape
71curved
713inflexed
F05D 2260/941
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
94Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
941particularly aimed at mechanical or thermal stress reduction
Applicants
  • UNITED TECHNOLOGIES CORPORATION [US]/[US]
  • MITSUBISHI HEAVY INDUSTRIES AMERICA, INC. [US]/[US]
Inventors
  • CHANG, Hoyt Y.
  • ICHIHASHI, Yusuke
  • FUJIMOTO, Yohei
  • DALE, Timothy
Agents
  • O'SHEA, Patrick J.
Priority Data
61/877,69613.09.2013US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SHIELDING POCKETS FOR CASE HOLES
(FR) POCHES DE PROTECTION POUR TROUS DE CARTER
Abstract
(EN) A case is provided for a gas turbine engine. The case includes a wall defining a through-hole. The case also includes first and second pockets adjacent to, and on opposite sides, of the through hole. A method of reducing stress in a case of a gas turbine engine is also provided that includes reducing stress about a through-hole by providing a concavity on each side of the through-hole.
(FR) La présente invention un carter pour une turbine à gaz. Le carter comporte une paroi définissant un trou débouchant. Le carter comporte également des première et seconde poches adjacentes et sur des faces opposées du trou débouchant. L'invention concerne également un procédé de réduction de contrainte dans un carter d'une turbine à gaz qui comprend la réduction de contrainte autour du trou débouchant par l'utilisation d'une concavité sur chaque côté du trou débouchant.
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