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GB620877A - Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus - Google Patents

Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus

Info

Publication number
GB620877A
GB620877A GB269547A GB269547A GB620877A GB 620877 A GB620877 A GB 620877A GB 269547 A GB269547 A GB 269547A GB 269547 A GB269547 A GB 269547A GB 620877 A GB620877 A GB 620877A
Authority
GB
United Kingdom
Prior art keywords
blade
slot
strip
blade root
root
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
GB269547A
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.)
Bristol Aeroplane Co Ltd
Original Assignee
Bristol Aeroplane 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 Bristol Aeroplane Co Ltd filed Critical Bristol Aeroplane Co Ltd
Priority to GB269547A priority Critical patent/GB620877A/en
Publication of GB620877A publication Critical patent/GB620877A/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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

620,877. Turbine blades. BRISTOL AEROPLANE CO., Ltd., and HENSTRIDGE, A. G. Jan. 28, 1947, No. 2695. [Class 110(iii)] Blade attachment means of the shoulder type, i.e. of the type in which the carrier has an open-ended slot for each blade with an overhanging shoulder which prevents removal of the blade from the carrier lengthwise of the blade, has locking means in the form of a strip extending along the slot, the ends of the strip being bent so as at least partly to overlie the end of each open-ended slot and resiliently engage the carrier and the blade root. The blade 8 is attached to the rotor disc 9 by a shoulder type attachment 5 which is in the form of a V-shaped slot 14 having stepped side walls which are engaged by a similar formation of the blade root. To prevent axial movement of the blade 8 in the slot 14, a strip 15 of arcuate cross-section is provided. One end of the strip is bent upwardly and then placed along the bottom 11 of the slot 14 with its concave face facing the blade root. The blade root 7 is then placed is the slot 14, the portion 16 of the strip 15 displaced lengthwise of the slot and the projecting end of the strip bent upwardly to cover the face 12 of the root 7. The lateral lugs 17 which extend about one-third of the side face of the blade root, are then flattened against the rotor and sides of the blade root. The dimensions and material of a particular strip are given.
GB269547A 1947-01-28 1947-01-28 Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus Expired GB620877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB269547A GB620877A (en) 1947-01-28 1947-01-28 Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB269547A GB620877A (en) 1947-01-28 1947-01-28 Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus

Publications (1)

Publication Number Publication Date
GB620877A true GB620877A (en) 1949-03-31

Family

ID=9744168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB269547A Expired GB620877A (en) 1947-01-28 1947-01-28 Improvements in or relating to attachment means for the blades of fans, compressors,turbines or the like apparatus

Country Status (1)

Country Link
GB (1) GB620877A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686656A (en) * 1950-04-04 1954-08-17 United Aircraft Corp Blade locking device
US2761648A (en) * 1951-09-18 1956-09-04 A V Roe Canada Ltd Rotor blade locking device
US2786648A (en) * 1950-04-04 1957-03-26 United Aircraft Corp Blade locking device
US2801074A (en) * 1952-10-01 1957-07-30 United Aircraft Corp Blade retaining means
US2833515A (en) * 1953-08-20 1958-05-06 Philip P Newcomb Turbine blade
US3045329A (en) * 1959-07-30 1962-07-24 Gen Electric Method for assembling tongue-and-groove members with locking keys
US3575522A (en) * 1968-08-30 1971-04-20 Gen Motors Corp Turbine cooling
US4142827A (en) * 1976-06-15 1979-03-06 Nuovo Pignone S.P.A. System for locking the blades in position on the stator case of an axial compressor
US5152669A (en) * 1990-06-26 1992-10-06 Westinghouse Electric Corp. Turbomachine blade fastening
US6419452B1 (en) * 1999-05-31 2002-07-16 Nuovo Pignone Holding S.P.A. Securing devices for blades for gas turbines
CN110296105A (en) * 2019-08-15 2019-10-01 上海电气燃气轮机有限公司 Blade locking mechanism
CN120027097A (en) * 2025-04-07 2025-05-23 中国联合重型燃气轮机技术有限公司 Locking strips and gas turbines

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686656A (en) * 1950-04-04 1954-08-17 United Aircraft Corp Blade locking device
US2786648A (en) * 1950-04-04 1957-03-26 United Aircraft Corp Blade locking device
US2761648A (en) * 1951-09-18 1956-09-04 A V Roe Canada Ltd Rotor blade locking device
US2801074A (en) * 1952-10-01 1957-07-30 United Aircraft Corp Blade retaining means
US2833515A (en) * 1953-08-20 1958-05-06 Philip P Newcomb Turbine blade
US3045329A (en) * 1959-07-30 1962-07-24 Gen Electric Method for assembling tongue-and-groove members with locking keys
US3575522A (en) * 1968-08-30 1971-04-20 Gen Motors Corp Turbine cooling
US4142827A (en) * 1976-06-15 1979-03-06 Nuovo Pignone S.P.A. System for locking the blades in position on the stator case of an axial compressor
US5152669A (en) * 1990-06-26 1992-10-06 Westinghouse Electric Corp. Turbomachine blade fastening
US6419452B1 (en) * 1999-05-31 2002-07-16 Nuovo Pignone Holding S.P.A. Securing devices for blades for gas turbines
CN110296105A (en) * 2019-08-15 2019-10-01 上海电气燃气轮机有限公司 Blade locking mechanism
CN120027097A (en) * 2025-04-07 2025-05-23 中国联合重型燃气轮机技术有限公司 Locking strips and gas turbines

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