GB815506A - Improvements in or relating to bladed rotors for axial-flow fluid machines - Google Patents

Improvements in or relating to bladed rotors for axial-flow fluid machines

Info

Publication number
GB815506A
GB815506A GB28411/54A GB2841154A GB815506A GB 815506 A GB815506 A GB 815506A GB 28411/54 A GB28411/54 A GB 28411/54A GB 2841154 A GB2841154 A GB 2841154A GB 815506 A GB815506 A GB 815506A
Authority
GB
United Kingdom
Prior art keywords
plates
circumferential
projections
locking piece
engages
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
GB28411/54A
Inventor
Raymond Hart
Peter Rex Hodgkinson
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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
Priority claimed from GB1482553A external-priority patent/GB745073A/en
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of GB815506A publication Critical patent/GB815506A/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
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins

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

815,506. Axial-flow compressors. ROLLS-ROYCE Ltd. Sept. 9, 1955 [Oct. 1, 1954], No. 28411/54. Addition to 745,073. Class 110 (3). [Also in Group XXV] The invention of the parent Specification is modified in that each plate member extends radially-outwards beyond each associated pivot pin and has interlocking engagement with the periphery of the disc to retain the plate member in position. In Figs. 1 and 2 lugs 16 provided on the blades 14 are disposed in a channel 11 between the flanges 12, 13 of the rotor disc 10. The blades are secured by means of pivot pins 17 which are formed with neck portions 17a and heads 17b. The pins are retained in position axially by means of plates 18 which are formed with keyhole-type slots 19, the larger diameter portions of the slots being adapted to pass over the heads 17b while the smaller diameter portions, upon circumferential displacement of the plates, engage snugly with the neck portions 17a of the pivot pins. The outer edges of the plates 18 engage in a circumferential groove formed in the rotor disc flange 13, while lugs 18b on the inner edges of the plates engage in circumferential grooves formed in projections 21 on the flange 13. The slot at one end of each plate 18 is open-ended and parallel-sided as indicated at 19a. Tongues 22 on the plates 18 abut against the projections 21 to prevent circumferential movement of the plates in one direction. A locking piece 23 is provided between two of the plates 18 and has a radiallydirected open-ended keyhole slot 24 which engages one pivot pin 17. The outer edge of the locking piece 23 engages in the outer circumferential groove and the inner edge engages in a groove formed in a projection 25 similar to the projections 21. After assembly, two tabs 26 on the locking piece are bent downwards to overlie a circumferential shelf 27.
GB28411/54A 1953-05-27 1954-10-01 Improvements in or relating to bladed rotors for axial-flow fluid machines Expired GB815506A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1482553A GB745073A (en) 1953-05-27 1953-05-27 Improvements in or relating to rotors for axial-flow compressors and like machines
GB391459A GB815507A (en) 1953-05-27 1954-10-01 Improvements in or relating to bladed rotors for axial-flow fluid machines

Publications (1)

Publication Number Publication Date
GB815506A true GB815506A (en) 1959-06-24

Family

ID=32395787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28411/54A Expired GB815506A (en) 1953-05-27 1954-10-01 Improvements in or relating to bladed rotors for axial-flow fluid machines

Country Status (4)

Country Link
US (1) US2925997A (en)
BE (1) BE541578A (en)
FR (1) FR1136390A (en)
GB (1) GB815506A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119389A (en) * 1977-01-17 1978-10-10 General Motors Corporation Radially removable turbine vanes

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906496A (en) * 1957-05-28 1959-09-29 Ransom S Thompson Retaining means for pin used for rotor blade attachment
US3039739A (en) * 1958-11-28 1962-06-19 Gen Motors Corp Pinned blade connecting means
US3042369A (en) * 1959-02-11 1962-07-03 Gen Motors Corp Pinned blade sealing means
US3043562A (en) * 1961-04-10 1962-07-10 Gen Electric Combination sealing and restraining member for long-shank turbo-machine buckets
BE635976A (en) * 1962-08-10
CH516731A (en) * 1969-12-12 1971-12-15 Bbc Sulzer Turbomaschinen Blade ring for turbo machines
FR2419389A1 (en) * 1978-03-08 1979-10-05 Snecma IMPROVEMENTS TO TURBOMACHINE ROTOR FLANGES
US4344740A (en) * 1979-09-28 1982-08-17 United Technologies Corporation Rotor assembly
FR2637321B1 (en) * 1988-10-05 1990-11-30 Snecma TURBOMACHINE ROTOR PROVIDED WITH A BLADE FIXING DEVICE
US5131814A (en) * 1990-04-03 1992-07-21 General Electric Company Turbine blade inner end attachment structure
US10767558B2 (en) * 2018-03-07 2020-09-08 Rolls-Royce North American Technologies Inc. Adaptive-curvature inertial particle separators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537739A (en) * 1946-10-26 1951-01-09 Wright Aeronautical Corp Fan blade mounting
FR960069A (en) * 1947-04-02 1950-04-12
GB679714A (en) * 1949-04-21 1952-09-24 Rolls Royce Improvements in or relating to axial-flow compressors and turbines
GB667979A (en) * 1949-07-28 1952-03-12 Rolls Royce Improvements in or relating to axial flow compressors and turbines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119389A (en) * 1977-01-17 1978-10-10 General Motors Corporation Radially removable turbine vanes

Also Published As

Publication number Publication date
FR1136390A (en) 1957-05-13
US2925997A (en) 1960-02-23
BE541578A (en)

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