GB1195171A - Improvements in Lock for Turbomachinery Blades. - Google Patents

Improvements in Lock for Turbomachinery Blades.

Info

Publication number
GB1195171A
GB1195171A GB12983/68A GB1298368A GB1195171A GB 1195171 A GB1195171 A GB 1195171A GB 12983/68 A GB12983/68 A GB 12983/68A GB 1298368 A GB1298368 A GB 1298368A GB 1195171 A GB1195171 A GB 1195171A
Authority
GB
United Kingdom
Prior art keywords
retainer
root
legs
groove
slot
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
GB12983/68A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1195171A publication Critical patent/GB1195171A/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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,195,171. Blade fixing. GENERAL ELECTRIC CO. March 18, 1968 [Sept. 12, 1967], No.12983/68. Heading F1T. Each blade 22 is locked in position in a transverse slot 20 across the periphery of a compressor or like rotor 18 by means of a locking arrangement comprising a retainer 26 and a keeper 28. The retainer 26 is formed by a bridge 30 having inwardly and outwardly extending legs 32, 34 at its opposite ends. Prior to the insertion of the blade root 24 in its mounting slot 20, the bridge 30 of the retainer is introduced in to a groove 38 in the base of the root 24, the groove being of sufficient depth to enable the legs 32 of the retainer to clear the base of slot 20. After the root 24 and retainer 26 have been introduced in to the slot, the retainer is moved radially inwardly so that legs 32 engage the faces of rotor rim 16 while legs 34 remain in engagement with the ends of root 24. The unbent end of the keeper 28 is then inserted into root groove 38 and a co-operating groove 37 in the retainer 26. When the keeper is fully home its unbent end is bent up at 40 to lock the retainer in position.
GB12983/68A 1967-09-12 1968-03-18 Improvements in Lock for Turbomachinery Blades. Expired GB1195171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US667169A US3383095A (en) 1967-09-12 1967-09-12 Lock for turbomachinery blades

Publications (1)

Publication Number Publication Date
GB1195171A true GB1195171A (en) 1970-06-17

Family

ID=24677099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12983/68A Expired GB1195171A (en) 1967-09-12 1968-03-18 Improvements in Lock for Turbomachinery Blades.

Country Status (6)

Country Link
US (1) US3383095A (en)
BE (1) BE712967A (en)
DE (1) DE1751071A1 (en)
FR (1) FR1562385A (en)
GB (1) GB1195171A (en)
SE (1) SE325748B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661475A (en) * 1970-04-30 1972-05-09 Gen Electric Turbomachinery rotors
US3653781A (en) * 1970-12-18 1972-04-04 Gen Electric Turbomachinery blade retainer
US3832092A (en) * 1973-10-19 1974-08-27 Gen Electric Device for locking turbomachinery blades
US3936234A (en) * 1975-02-10 1976-02-03 General Electric Company Device for locking turbomachinery blades
US4221542A (en) * 1977-12-27 1980-09-09 General Electric Company Segmented blade retainer
US4685863A (en) * 1979-06-27 1987-08-11 United Technologies Corporation Turbine rotor assembly
FR2519072B1 (en) * 1981-12-29 1986-05-30 Snecma DEVICE FOR AXIAL AND RADIAL RETENTION OF A TURBO JET ROTOR BLADE
US6109877A (en) * 1998-11-23 2000-08-29 Pratt & Whitney Canada Corp. Turbine blade-to-disk retention device
GB0216951D0 (en) * 2002-07-20 2002-08-28 Rolls Royce Plc A fan blade assembly
US6837686B2 (en) 2002-09-27 2005-01-04 Pratt & Whitney Canada Corp. Blade retention scheme using a retention tab
US8287238B2 (en) * 2008-02-29 2012-10-16 General Electric Company Hub pitch gear repair method
US8215915B2 (en) * 2009-05-15 2012-07-10 Siemens Energy, Inc. Blade closing key system for a turbine engine
US8562301B2 (en) * 2010-04-20 2013-10-22 Hamilton Sundstrand Corporation Turbine blade retention device
US8905717B2 (en) 2010-10-06 2014-12-09 General Electric Company Turbine bucket lockwire rotation prevention
GB201106050D0 (en) * 2011-04-11 2011-05-25 Rolls Royce Plc A retention device for a composite blade of a gas turbine engine
US8764402B2 (en) * 2011-06-09 2014-07-01 General Electric Company Turbomachine blade locking system
DE102011084153B4 (en) * 2011-10-07 2014-05-15 MTU Aero Engines AG Securing device for securing a blade element in a groove of a running disk
US9112383B2 (en) 2011-10-31 2015-08-18 General Electric Company System and method for Var injection at a distributed power generation source
US9246372B2 (en) * 2012-01-20 2016-01-26 Fluor Technologies Corporation Rotor pole support ribs in gearless drives
CN104564801A (en) * 2014-11-18 2015-04-29 东方电气集团东方汽轮机有限公司 Axial positioning structure for compressor blade in impeller groove
US11339674B2 (en) 2018-08-14 2022-05-24 Rolls-Royce North American Technologies Inc. Blade retainer for gas turbine engine
DE102019210647A1 (en) * 2019-07-18 2021-01-21 Siemens Energy Global GmbH & Co. KG Blade ring for an axial turbo machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786648A (en) * 1950-04-04 1957-03-26 United Aircraft Corp Blade locking device
US3076634A (en) * 1959-06-12 1963-02-05 Ass Elect Ind Locking means for compressor and turbine blades
US3057598A (en) * 1960-07-01 1962-10-09 Ass Elect Ind Locking means for turbine or compressor blading
US3216699A (en) * 1963-10-24 1965-11-09 Gen Electric Airfoil member assembly

Also Published As

Publication number Publication date
FR1562385A (en) 1969-04-04
BE712967A (en) 1968-07-31
US3383095A (en) 1968-05-14
DE1751071A1 (en) 1971-03-04
SE325748B (en) 1970-07-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees