US3897171A - Ceramic turbine rotor disc and blade configuration - Google Patents

Ceramic turbine rotor disc and blade configuration Download PDF

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Publication number
US3897171A
US3897171A US482913A US48291374A US3897171A US 3897171 A US3897171 A US 3897171A US 482913 A US482913 A US 482913A US 48291374 A US48291374 A US 48291374A US 3897171 A US3897171 A US 3897171A
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US
United States
Prior art keywords
ceramic
rotor disc
plug
blade
elongated
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US482913A
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English (en)
Inventor
William F Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US482913A priority Critical patent/US3897171A/en
Priority to CA228,832A priority patent/CA1006822A/en
Priority to IT24242/75A priority patent/IT1038875B/it
Priority to JP7327175A priority patent/JPS5415088B2/ja
Application granted granted Critical
Publication of US3897171A publication Critical patent/US3897171A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/284—Selection of ceramic materials

Definitions

  • ABSTRACT A ceramic gas turbine rotor disc is formed integrally [521 416/244; 416/213 416/241 with an array of ceramic airfoil blades. Each blade has [5 Clan elongated Shank p i to reduce thermal and [58] F'eld of Seal-chm 416/244 241 B chanical stresses on the rotor disc. An elongated cavity is disposed between adjacent shank members.
  • This invention relates generally to ceramic articles, and more particularly to integral ceramic rotor blades and discs for gas turbines.
  • An object of the present invention is to define a rotor disc integral with rotor blades, capable of withstanding extremely high motive fluid temperatures with maximum time between failures.
  • This invention describes an integral rotor disc and blade array comprised of ceramic material.
  • Each blade has an extended shank portion.
  • An elongated cavity is disposed between adjacent extended blade shank members.
  • the cavities are filled with an undensified unattached silicon nitride plug.
  • the plugs acts as centrifugal force pins.
  • the extended shanks reduce thermal and mechanical stresses on the rotor disc.
  • the cavities are shaped so as to restrain the radial motion of the plugs due to centrifugal forces caused by rotor rotation.
  • the plugs act as sealing members to prevent hot motive fluid from leaking out of the hot motive fluid flowpath.
  • the plugs also serve to reduce any vibratory motion of the blade.
  • FIG. 2 is a view taken along lines lI-II of FIG. 1;
  • FIG. 3 is an alternative embodiment of the invention as shown in FIG. 2.
  • the undensified unattached silicon nitride plugs 26 act as centrifugal force pins to prevent the blades 12 from excessive vibration.
  • said cavity being filled with a ceramic plug, said ceramic plug serving as a centrifugal force pin to help reduce vibratory motion of the airfoil blades during rotor disc rotation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US482913A 1974-06-25 1974-06-25 Ceramic turbine rotor disc and blade configuration Expired - Lifetime US3897171A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US482913A US3897171A (en) 1974-06-25 1974-06-25 Ceramic turbine rotor disc and blade configuration
CA228,832A CA1006822A (en) 1974-06-25 1975-06-09 Ceramic turbine rotor disc and blade configuration
IT24242/75A IT1038875B (it) 1974-06-25 1975-06-11 Complesso di disco rotorico e palette di turbina in materiale ceramico
JP7327175A JPS5415088B2 (enrdf_load_stackoverflow) 1974-06-25 1975-06-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US482913A US3897171A (en) 1974-06-25 1974-06-25 Ceramic turbine rotor disc and blade configuration

Publications (1)

Publication Number Publication Date
US3897171A true US3897171A (en) 1975-07-29

Family

ID=23917919

Family Applications (1)

Application Number Title Priority Date Filing Date
US482913A Expired - Lifetime US3897171A (en) 1974-06-25 1974-06-25 Ceramic turbine rotor disc and blade configuration

Country Status (4)

Country Link
US (1) US3897171A (enrdf_load_stackoverflow)
JP (1) JPS5415088B2 (enrdf_load_stackoverflow)
CA (1) CA1006822A (enrdf_load_stackoverflow)
IT (1) IT1038875B (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111603A (en) * 1976-05-17 1978-09-05 Westinghouse Electric Corp. Ceramic rotor blade assembly for a gas turbine engine
US4164102A (en) * 1976-01-29 1979-08-14 Daimler-Benz Aktiengesellschaft Process for the manufacture of a ceramic axial turbine wheel
US4295791A (en) * 1979-08-20 1981-10-20 General Motors Corporation Scalloped ceramic turbine
WO1981003047A1 (en) * 1980-04-17 1981-10-29 Carborundum Co Ceramic radial turbine wheel
US4408959A (en) * 1980-07-03 1983-10-11 Kennecott Corporation Ceramic radial turbine wheel
US4417854A (en) * 1980-03-21 1983-11-29 Rockwell International Corporation Compliant interface for ceramic turbine blades
US5735671A (en) * 1996-11-29 1998-04-07 General Electric Company Shielded turbine rotor
US20020146322A1 (en) * 2001-04-10 2002-10-10 Stuart Yeo Vibration damping
US6511294B1 (en) * 1999-09-23 2003-01-28 General Electric Company Reduced-stress compressor blisk flowpath
US20070231154A1 (en) * 2006-03-31 2007-10-04 Burdgick Steven S Methods and apparatus for reducing stress in turbine buckets
US20110182745A1 (en) * 2007-12-28 2011-07-28 Suciu Gabriel L Integrally bladed rotor with slotted outer rim
EP2586967A2 (en) 2011-10-28 2013-05-01 General Electric Company Thermal plug for turbine bucket shank cavity and related method
EP2230382A3 (en) * 2009-03-19 2014-03-12 Honeywell International Inc. Gas turbine rotor stage
US20140147276A1 (en) * 2012-11-28 2014-05-29 General Electric Company System for damping vibrations in a turbine
US9273563B2 (en) 2007-12-28 2016-03-01 United Technologies Corporation Integrally bladed rotor with slotted outer rim
CN106164416A (zh) * 2013-11-25 2016-11-23 通用电器技术有限公司 用于涡轮机的基于模块化结构的叶片组件
US10047614B2 (en) * 2014-10-09 2018-08-14 Rolls-Royce Corporation Coating system including alternating layers of amorphous silica and amorphous silicon nitride
GB2567210A (en) * 2017-10-06 2019-04-10 Rolls Royce Plc A blisk
EP3708778A1 (en) * 2019-03-11 2020-09-16 United Technologies Corporation Inserts for slotted integrally bladed rotor
CN112096653A (zh) * 2020-11-18 2020-12-18 中国航发上海商用航空发动机制造有限责任公司 叶片缘板、叶片环、叶轮盘以及燃气涡轮发动机
RU2796182C1 (ru) * 2020-11-18 2023-05-17 Aecc Шанхай Коммершал Эйркрафт Энджин Маньюфэкчуринг Ко., Лтд. Платформа лопатки, лопаточный венец, диск рабочего колеса и газотурбинный двигатель

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072962Y2 (ja) * 1987-02-17 1995-01-30 三菱重工業株式会社 軸流タ−ボ機械の羽根車
US4986737A (en) * 1988-12-29 1991-01-22 General Electric Company Damped gas turbine engine airfoil row
US8657579B2 (en) * 2010-08-27 2014-02-25 General Electric Company Blade for use with a rotary machine and method of assembling same rotary machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297508A (en) * 1940-02-29 1942-09-29 Schutte Alfred Rotor for turbines
US2769611A (en) * 1951-08-15 1956-11-06 Schwarzkopf Dev Co Gas turbine rotors and their production
US3262676A (en) * 1964-05-27 1966-07-26 Chrysler Corp Turbine wheel
US3664766A (en) * 1970-06-01 1972-05-23 Ford Motor Co Turbine wheel
US3817657A (en) * 1971-11-08 1974-06-18 Motoren Turbinen Union Integral turbine wheel with axial through-openings at the outer rim and with controlled rim cracks
US3824036A (en) * 1971-02-15 1974-07-16 British Leyland Truck & Bus Gas turbine rotors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217496B2 (enrdf_load_stackoverflow) * 1972-04-10 1977-05-16
JPS4954704A (enrdf_load_stackoverflow) * 1972-09-27 1974-05-28

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2297508A (en) * 1940-02-29 1942-09-29 Schutte Alfred Rotor for turbines
US2769611A (en) * 1951-08-15 1956-11-06 Schwarzkopf Dev Co Gas turbine rotors and their production
US3262676A (en) * 1964-05-27 1966-07-26 Chrysler Corp Turbine wheel
US3664766A (en) * 1970-06-01 1972-05-23 Ford Motor Co Turbine wheel
US3824036A (en) * 1971-02-15 1974-07-16 British Leyland Truck & Bus Gas turbine rotors
US3817657A (en) * 1971-11-08 1974-06-18 Motoren Turbinen Union Integral turbine wheel with axial through-openings at the outer rim and with controlled rim cracks

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164102A (en) * 1976-01-29 1979-08-14 Daimler-Benz Aktiengesellschaft Process for the manufacture of a ceramic axial turbine wheel
US4111603A (en) * 1976-05-17 1978-09-05 Westinghouse Electric Corp. Ceramic rotor blade assembly for a gas turbine engine
US4295791A (en) * 1979-08-20 1981-10-20 General Motors Corporation Scalloped ceramic turbine
US4417854A (en) * 1980-03-21 1983-11-29 Rockwell International Corporation Compliant interface for ceramic turbine blades
WO1981003047A1 (en) * 1980-04-17 1981-10-29 Carborundum Co Ceramic radial turbine wheel
US4408959A (en) * 1980-07-03 1983-10-11 Kennecott Corporation Ceramic radial turbine wheel
US5735671A (en) * 1996-11-29 1998-04-07 General Electric Company Shielded turbine rotor
US6511294B1 (en) * 1999-09-23 2003-01-28 General Electric Company Reduced-stress compressor blisk flowpath
US20020146322A1 (en) * 2001-04-10 2002-10-10 Stuart Yeo Vibration damping
US6659725B2 (en) * 2001-04-10 2003-12-09 Rolls-Royce Plc Vibration damping
US20070231154A1 (en) * 2006-03-31 2007-10-04 Burdgick Steven S Methods and apparatus for reducing stress in turbine buckets
US7766625B2 (en) 2006-03-31 2010-08-03 General Electric Company Methods and apparatus for reducing stress in turbine buckets
US20110182745A1 (en) * 2007-12-28 2011-07-28 Suciu Gabriel L Integrally bladed rotor with slotted outer rim
US9273563B2 (en) 2007-12-28 2016-03-01 United Technologies Corporation Integrally bladed rotor with slotted outer rim
US9133720B2 (en) * 2007-12-28 2015-09-15 United Technologies Corporation Integrally bladed rotor with slotted outer rim
EP2230382A3 (en) * 2009-03-19 2014-03-12 Honeywell International Inc. Gas turbine rotor stage
CN103089324A (zh) * 2011-10-28 2013-05-08 通用电气公司 涡轮机转子盘以及相关方法
US20130108446A1 (en) * 2011-10-28 2013-05-02 General Electric Company Thermal plug for turbine bucket shank cavity and related method
EP2586967A2 (en) 2011-10-28 2013-05-01 General Electric Company Thermal plug for turbine bucket shank cavity and related method
US9366142B2 (en) * 2011-10-28 2016-06-14 General Electric Company Thermal plug for turbine bucket shank cavity and related method
CN103089324B (zh) * 2011-10-28 2016-08-31 通用电气公司 涡轮机转子盘及其冷却方法
US20140147276A1 (en) * 2012-11-28 2014-05-29 General Electric Company System for damping vibrations in a turbine
CN103850729A (zh) * 2012-11-28 2014-06-11 通用电气公司 用于阻尼涡轮中的振动的系统
US9194238B2 (en) * 2012-11-28 2015-11-24 General Electric Company System for damping vibrations in a turbine
CN106164416A (zh) * 2013-11-25 2016-11-23 通用电器技术有限公司 用于涡轮机的基于模块化结构的叶片组件
US10047614B2 (en) * 2014-10-09 2018-08-14 Rolls-Royce Corporation Coating system including alternating layers of amorphous silica and amorphous silicon nitride
GB2567210A (en) * 2017-10-06 2019-04-10 Rolls Royce Plc A blisk
GB2567210B (en) * 2017-10-06 2020-01-15 Rolls Royce Plc A bladed disk
US10641112B2 (en) 2017-10-06 2020-05-05 Rolls-Royce Plc Bladed disk
EP3708778A1 (en) * 2019-03-11 2020-09-16 United Technologies Corporation Inserts for slotted integrally bladed rotor
US11111804B2 (en) * 2019-03-11 2021-09-07 Raytheon Technologies Corporation Inserts for slotted integrally bladed rotor
CN112096653A (zh) * 2020-11-18 2020-12-18 中国航发上海商用航空发动机制造有限责任公司 叶片缘板、叶片环、叶轮盘以及燃气涡轮发动机
CN112096653B (zh) * 2020-11-18 2021-01-19 中国航发上海商用航空发动机制造有限责任公司 叶片缘板、叶片环、叶轮盘以及燃气涡轮发动机
WO2022105823A1 (zh) * 2020-11-18 2022-05-27 中国航发上海商用航空发动机制造有限责任公司 叶片缘板、叶片环、叶轮盘以及燃气涡轮发动机
RU2796182C1 (ru) * 2020-11-18 2023-05-17 Aecc Шанхай Коммершал Эйркрафт Энджин Маньюфэкчуринг Ко., Лтд. Платформа лопатки, лопаточный венец, диск рабочего колеса и газотурбинный двигатель

Also Published As

Publication number Publication date
IT1038875B (it) 1979-11-30
CA1006822A (en) 1977-03-15
IT7524242A1 (it) 1976-12-11
JPS5415088B2 (enrdf_load_stackoverflow) 1979-06-12
JPS5114520A (enrdf_load_stackoverflow) 1976-02-05

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