PL3976931T3 - Łopatka turbiny mająca osłabione wgłębienie o przekroju łamliwym - Google Patents

Łopatka turbiny mająca osłabione wgłębienie o przekroju łamliwym

Info

Publication number
PL3976931T3
PL3976931T3 PL20726420.1T PL20726420T PL3976931T3 PL 3976931 T3 PL3976931 T3 PL 3976931T3 PL 20726420 T PL20726420 T PL 20726420T PL 3976931 T3 PL3976931 T3 PL 3976931T3
Authority
PL
Poland
Prior art keywords
fragilization
cavity
turbine blade
frangible section
frangible
Prior art date
Application number
PL20726420.1T
Other languages
English (en)
Inventor
Matthieu Claude Jean DENAUX
Original Assignee
Safran Helicopter Engines
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.)
Filing date
Publication date
Application filed by Safran Helicopter Engines filed Critical Safran Helicopter Engines
Publication of PL3976931T3 publication Critical patent/PL3976931T3/pl

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/02—Shutting-down responsive to overspeed
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • 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
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F05D2220/321—Application in turbines in gas turbines for a special turbine stage
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved
    • 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
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/712—Shape curved concave
    • 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
    • F05D2260/00—Function
    • F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
    • F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
    • 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
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/02—Purpose of the control system to control rotational speed (n)
    • F05D2270/021—Purpose of the control system to control rotational speed (n) to prevent overspeed
PL20726420.1T 2019-05-27 2020-05-18 Łopatka turbiny mająca osłabione wgłębienie o przekroju łamliwym PL3976931T3 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1905588A FR3096727B1 (fr) 2019-05-27 2019-05-27 Aube de turbine dotée d’une cavité de fragilisation d’une section frangible
PCT/EP2020/063781 WO2020239490A1 (fr) 2019-05-27 2020-05-18 Aube de turbine dotée d'une cavité de fragilisation d'une section frangible

Publications (1)

Publication Number Publication Date
PL3976931T3 true PL3976931T3 (pl) 2023-12-04

Family

ID=68138342

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20726420.1T PL3976931T3 (pl) 2019-05-27 2020-05-18 Łopatka turbiny mająca osłabione wgłębienie o przekroju łamliwym

Country Status (7)

Country Link
US (1) US11846206B2 (pl)
EP (1) EP3976931B1 (pl)
CN (1) CN113891983B (pl)
CA (1) CA3139054A1 (pl)
FR (1) FR3096727B1 (pl)
PL (1) PL3976931T3 (pl)
WO (1) WO2020239490A1 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20230081267A (ko) * 2021-11-30 2023-06-07 두산에너빌리티 주식회사 터빈 블레이드, 이를 포함하는 터빈 및 가스터빈

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB881850A (en) 1959-05-05 1961-11-08 Gen Electric Improvements in turbine speed limiting arrangement
US5435694A (en) * 1993-11-19 1995-07-25 General Electric Company Stress relieving mount for an axial blade
US10458257B2 (en) * 2013-12-23 2019-10-29 Safran Aircraft Engines Blade comprising a shank, provided with a depressed portion
FR3015553B1 (fr) * 2013-12-23 2019-05-31 Safran Aircraft Engines Aube comprenant une echasse, munie d'une seule portion en depression
FR3025553B1 (fr) * 2014-09-08 2019-11-29 Safran Aircraft Engines Aube a becquet amont
FR3067625B1 (fr) * 2017-06-16 2019-12-27 Safran Aircraft Engines Procede de fabrication d’une aube de rotor pour une turbomachine d’aeronef
CN109139123B (zh) * 2018-08-09 2019-08-23 南京航空航天大学 一种涡轮叶片的飞脱断裂位置和飞脱断裂转速的定制方法

Also Published As

Publication number Publication date
CN113891983A (zh) 2022-01-04
CN113891983B (zh) 2023-12-22
FR3096727B1 (fr) 2021-06-25
US20220235665A1 (en) 2022-07-28
US11846206B2 (en) 2023-12-19
CA3139054A1 (fr) 2020-12-03
EP3976931A1 (fr) 2022-04-06
FR3096727A1 (fr) 2020-12-04
EP3976931B1 (fr) 2023-08-09
WO2020239490A1 (fr) 2020-12-03

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