GB630357A - Improvements in blade rings for radial flow elastic fluid machines - Google Patents

Improvements in blade rings for radial flow elastic fluid machines

Info

Publication number
GB630357A
GB630357A GB2696447A GB2696447A GB630357A GB 630357 A GB630357 A GB 630357A GB 2696447 A GB2696447 A GB 2696447A GB 2696447 A GB2696447 A GB 2696447A GB 630357 A GB630357 A GB 630357A
Authority
GB
United Kingdom
Prior art keywords
sides
groove
blade
strips
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
GB2696447A
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.)
SVENSKA TURBINFAB AB
Svenska Turbinfabriks Ljungstrom AB
Original Assignee
SVENSKA TURBINFAB AB
Svenska Turbinfabriks Ljungstrom AB
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 SVENSKA TURBINFAB AB, Svenska Turbinfabriks Ljungstrom AB filed Critical SVENSKA TURBINFAB AB
Priority to GB2696447A priority Critical patent/GB630357A/en
Publication of GB630357A publication Critical patent/GB630357A/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

Landscapes

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

Abstract

630,357. Turbine blading. F A I R - WEATHER, H. G. C. (Svenska Turbinfabriks Aktiebolaget Ljungstrom). Oct. 7, 1947, No. 26964. [Classes 110(i) and 110(iii)] A blade ring for a radial flow elastic fluid machine such as a turbine or compressor in which the blades are provided with dovetail roots at one or both ends which are dimensioned to act as distance pieces and engage an undercut annular groove in a supporting ring and are retained therein by rolling over the sides of the groove has an annular protecting strip inserted between the sides of the groove and the dovetail roots to prevent marking of the sides of the groove and to distribute the pressure of the blades on these sides. A blade 2, Fig. 1, has a dove-tail root 3 which engages an undercut groove in a supporting ring 1 and is retained therein by rolling over the sides 4, 5 of the groove. During this rolling action the blades tend to twist as shown in Fig. 2 and the edges of the blade roots to cut into the sides of the groove. To prevent this, annular protecting strips 6, 7 are placed in contact with the sides of the groove. The strips which may be of metal or other material are preferably softer than the material in which the groove is formed. The strips 6, 7 may be separate strips or on the sides of a single strip joined by a part 10. Modifications in which the protecting strip is extended to protect the tops of the sides of the grooves and also to form a packing strip between the blade rings are also described.
GB2696447A 1947-10-07 1947-10-07 Improvements in blade rings for radial flow elastic fluid machines Expired GB630357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2696447A GB630357A (en) 1947-10-07 1947-10-07 Improvements in blade rings for radial flow elastic fluid machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2696447A GB630357A (en) 1947-10-07 1947-10-07 Improvements in blade rings for radial flow elastic fluid machines

Publications (1)

Publication Number Publication Date
GB630357A true GB630357A (en) 1949-10-11

Family

ID=10251958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2696447A Expired GB630357A (en) 1947-10-07 1947-10-07 Improvements in blade rings for radial flow elastic fluid machines

Country Status (1)

Country Link
GB (1) GB630357A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024032977A1 (en) * 2022-08-11 2024-02-15 Safran Aircraft Engines Protection element for a compressor drum and method for repairing a compressor drum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024032977A1 (en) * 2022-08-11 2024-02-15 Safran Aircraft Engines Protection element for a compressor drum and method for repairing a compressor drum
FR3138829A1 (en) * 2022-08-11 2024-02-16 Safran Aircraft Engines PROTECTION ELEMENT OF A TURBOMACHINE LOW PRESSURE COMPRESSOR DRUM

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