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GB614678A - Improvements in or relating to turbine blading or the like - Google Patents

Improvements in or relating to turbine blading or the like

Info

Publication number
GB614678A
GB614678A GB21683/46A GB2168346A GB614678A GB 614678 A GB614678 A GB 614678A GB 21683/46 A GB21683/46 A GB 21683/46A GB 2168346 A GB2168346 A GB 2168346A GB 614678 A GB614678 A GB 614678A
Authority
GB
United Kingdom
Prior art keywords
faces
blade
groove
rotor
parallel
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
Application number
GB21683/46A
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.)
CA Parsons and Co Ltd
Original Assignee
CA Parsons and Co Ltd
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 CA Parsons and Co Ltd filed Critical CA Parsons and Co Ltd
Publication of GB614678A publication Critical patent/GB614678A/en
Expired legal-status Critical Current

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
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
    • 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
    • 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
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/3046—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses the rotor having ribs around the circumference

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

614,678. Turbine blades. PARSONS & CO., Ltd., C. A., and GARDNER, F. W. July 19, 1946, No. 21683. [Class 110 (iii)] Clearance for both radial and axial expansion is provided between the coacting faces securing the blade roots to the rotor, and an additional connection comprising a parallel faced tongue coacting with a parallel-faced groove restrains the blade from rocking transversely. The groove d is preferably curved at the bottom. In one embodiment, Fig. 3, the upper faces f<1>, f<2>, f<3> of the blade serrations are in contact with the corresponding faces of the rotor groove serrations, and clearance is left between faces a and b. The faces f<1>, f<2>, f<3> are, in a known manner, inclined at different angles such that the planes containing them intersect at a line in the transverse central plane of the blade root; the faces f<1>, f<2>, f<3> thereby remain in contact on expansion. In a modification, the faces f<1>, f<2>, f3 may be parallel. The blade root may be of T form. The rotor grooves may be disposed axially instead of circumferentially. Alternative em. bodiments are described in which the blade fixing is of the straddle type, the tongue c being formed on the rotor periphery and the groove d on the blade root.
GB21683/46A 1946-07-19 1946-07-19 Improvements in or relating to turbine blading or the like Expired GB614678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB264713X 1946-07-19

Publications (1)

Publication Number Publication Date
GB614678A true GB614678A (en) 1948-12-20

Family

ID=10244152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21683/46A Expired GB614678A (en) 1946-07-19 1946-07-19 Improvements in or relating to turbine blading or the like

Country Status (3)

Country Link
CH (1) CH264713A (en)
FR (1) FR948700A (en)
GB (1) GB614678A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686655A (en) * 1949-09-02 1954-08-17 Maschf Augsburg Nuernberg Ag Joint between ceramic and metallic parts
US5152669A (en) * 1990-06-26 1992-10-06 Westinghouse Electric Corp. Turbomachine blade fastening
GB2263736A (en) * 1992-01-30 1993-08-04 Gen Electric Rotor blade and rotor assembly.
GB2293212A (en) * 1994-09-16 1996-03-20 Mtu Muenchen Gmbh Turbomachine rotor blade mounting arrangement
US6142737A (en) * 1998-08-26 2000-11-07 General Electric Co. Bucket and wheel dovetail design for turbine rotors
EP1130217A1 (en) * 2000-03-01 2001-09-05 ABB Alstom Power N.V. Fixing of blades in a turbomachine
GB2398843A (en) * 2003-02-25 2004-09-01 Gen Electric Rotor wheel assembly with dovetail root arrangement
EP2320030A1 (en) * 2009-11-10 2011-05-11 Alstom Technology Ltd Rotor and rotor blade for an axial turbomachine
CH702203A1 (en) * 2009-11-10 2011-05-13 Alstom Technology Ltd Rotor for axial flow turbomachine i.e. gas turbine, in combined cycle power plant, has rotating blades inserted into groove, and blade root comprising inverted-T root with hammer head and adapted to base area of groove in radial direction
WO2016195689A1 (en) * 2015-06-04 2016-12-08 Siemens Energy, Inc. Attachment system for turbine engine airfoil
WO2018036710A1 (en) * 2016-08-24 2018-03-01 Siemens Aktiengesellschaft Rotor blade, rotor blade ring and turbine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950557C (en) * 1952-12-23 1956-10-11 Svenska Turbinfab Ab Fir tree base for blades of axial turbines or compressors
FR3120905A1 (en) * 2021-03-16 2022-09-23 Safran Aircraft Engines Paddle wheel for a turbine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686655A (en) * 1949-09-02 1954-08-17 Maschf Augsburg Nuernberg Ag Joint between ceramic and metallic parts
US5152669A (en) * 1990-06-26 1992-10-06 Westinghouse Electric Corp. Turbomachine blade fastening
GB2263736A (en) * 1992-01-30 1993-08-04 Gen Electric Rotor blade and rotor assembly.
FR2686941A1 (en) * 1992-01-30 1993-08-06 Gen Electric ROTOR FIN WITH ANTI-OSCILLATING HEELS AND ROTOR OF A GAS TURBINE ENGINE COMPRISING SUCH FINS.
GB2263736B (en) * 1992-01-30 1995-05-24 Gen Electric Rotor blade and rotor assembly
GB2293212A (en) * 1994-09-16 1996-03-20 Mtu Muenchen Gmbh Turbomachine rotor blade mounting arrangement
DE4432999A1 (en) * 1994-09-16 1996-03-21 Mtu Muenchen Gmbh Impeller of a turbomachine, in particular an axially flow-through turbine of a gas turbine engine
FR2724690A1 (en) * 1994-09-16 1996-03-22 Mtu Muenchen Gmbh MOBILE WHEEL OF A TURBOMACHINE, IN PARTICULAR AN AXIAL FLOW TURBINE OF A GAS TURBINE PROPELLER.
US5593282A (en) * 1994-09-16 1997-01-14 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Turbomachine rotor construction including a serrated root section and a rounded terminal portion on a blade root, especially for an axial-flow turbine of a gas turbine engine
GB2293212B (en) * 1994-09-16 1998-05-27 Mtu Muenchen Gmbh Rotor for a turbomachine
DE4432999C2 (en) * 1994-09-16 1998-07-30 Mtu Muenchen Gmbh Impeller of a turbomachine, in particular an axially flow-through turbine of a gas turbine engine
US6142737A (en) * 1998-08-26 2000-11-07 General Electric Co. Bucket and wheel dovetail design for turbine rotors
EP1130217A1 (en) * 2000-03-01 2001-09-05 ABB Alstom Power N.V. Fixing of blades in a turbomachine
GB2398843A (en) * 2003-02-25 2004-09-01 Gen Electric Rotor wheel assembly with dovetail root arrangement
EP2320030A1 (en) * 2009-11-10 2011-05-11 Alstom Technology Ltd Rotor and rotor blade for an axial turbomachine
CH702203A1 (en) * 2009-11-10 2011-05-13 Alstom Technology Ltd Rotor for axial flow turbomachine i.e. gas turbine, in combined cycle power plant, has rotating blades inserted into groove, and blade root comprising inverted-T root with hammer head and adapted to base area of groove in radial direction
US8770938B2 (en) 2009-11-10 2014-07-08 Alstom Technology Ltd Rotor for an axial-throughflow turbomachine and moving blade for such a rotor
WO2016195689A1 (en) * 2015-06-04 2016-12-08 Siemens Energy, Inc. Attachment system for turbine engine airfoil
WO2018036710A1 (en) * 2016-08-24 2018-03-01 Siemens Aktiengesellschaft Rotor blade, rotor blade ring and turbine

Also Published As

Publication number Publication date
FR948700A (en) 1949-08-08
CH264713A (en) 1949-10-31

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