GB747098A - Improvements in or relating to bladed structures for axial-flow fluid machines - Google Patents

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

Info

Publication number
GB747098A
GB747098A GB3179852A GB3179852A GB747098A GB 747098 A GB747098 A GB 747098A GB 3179852 A GB3179852 A GB 3179852A GB 3179852 A GB3179852 A GB 3179852A GB 747098 A GB747098 A GB 747098A
Authority
GB
United Kingdom
Prior art keywords
slots
filler pieces
axial
shouldered
blades
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
GB3179852A
Inventor
John Kenneth Rhodes
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
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB3179852A priority Critical patent/GB747098A/en
Publication of GB747098A publication Critical patent/GB747098A/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)

Abstract

747,098. Turbines and compressors. ROLLS-ROYCE, Ltd. Dec. 9, 1953 [Dec. 15, 1952], No. 31798/52. Class 110(3) In an axial-flow turbine or compressor a blade-supporting part such as a rotor, is formed with two sets of shouldered slots, one set extending in the generally axial direction and the other set extending circumferentially, correspondingly-shouldered roots of the blades being engaged in the sets of slots and correspondingly-shouldered roots of filler pieces being engaged in the other set of slots. The circumferential slots open at their ends into the axial slots, and the radially-facing surfaces of the filler pieces and the root attachment portions of the blades form in the assembly a substantially continuous annular shroud surface. The turbine rotor shown is formed with generally axially-extending slots 12 of circular cross-section and with undercut circumferential slots 22. The root portions 13 of blades 14 are mounted in the axial slots being retained by shims 15 peened over at the ends and by retainer strips 16 with bifurcated bent-over ends 16a. Filler pieces 18 having shouldered roots 19 are mounted in the circumferential slots, the blade platforms 17 and the filler pieces 18 co-operating to form a complete shroud annulus. The filler pieces are recessed at 23 for lightness. The blades and filler pieces may be of ceramic or sintered material.
GB3179852A 1952-12-15 1952-12-15 Improvements in or relating to bladed structures for axial-flow fluid machines Expired GB747098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3179852A GB747098A (en) 1952-12-15 1952-12-15 Improvements in or relating to bladed structures for axial-flow fluid machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3179852A GB747098A (en) 1952-12-15 1952-12-15 Improvements in or relating to bladed structures for axial-flow fluid machines

Publications (1)

Publication Number Publication Date
GB747098A true GB747098A (en) 1956-03-28

Family

ID=10328569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3179852A Expired GB747098A (en) 1952-12-15 1952-12-15 Improvements in or relating to bladed structures for axial-flow fluid machines

Country Status (1)

Country Link
GB (1) GB747098A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971744A (en) * 1956-11-27 1961-02-14 Szydlowski Joseph Blade lock
US3014695A (en) * 1960-02-03 1961-12-26 Gen Electric Turbine bucket retaining means
US4711007A (en) * 1986-09-29 1987-12-08 Westinghouse Electric Corp. Method and apparatus for installing free standing turbine blades

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971744A (en) * 1956-11-27 1961-02-14 Szydlowski Joseph Blade lock
US3014695A (en) * 1960-02-03 1961-12-26 Gen Electric Turbine bucket retaining means
US4711007A (en) * 1986-09-29 1987-12-08 Westinghouse Electric Corp. Method and apparatus for installing free standing turbine blades

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