GB594204A - Improved blade ring for radial flow elastic fluid turbines and method of manufacturing same - Google Patents

Improved blade ring for radial flow elastic fluid turbines and method of manufacturing same

Info

Publication number
GB594204A
GB594204A GB16534/45A GB1653445A GB594204A GB 594204 A GB594204 A GB 594204A GB 16534/45 A GB16534/45 A GB 16534/45A GB 1653445 A GB1653445 A GB 1653445A GB 594204 A GB594204 A GB 594204A
Authority
GB
United Kingdom
Prior art keywords
ring
rings
supporting
blades
blade
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
GB16534/45A
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
Publication of GB594204A publication Critical patent/GB594204A/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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
    • F01D5/041—Blade-carrying members, e.g. rotors for radial-flow machines or engines of the Ljungström type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

594,204. Making turbines. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. June 28, 1945, No. 16534. Convention date, July 5, 1944. [Class 83 (ii)] [Also in Group XXVI] In a blade ring for a radial flow elastic fluid turbine, one end at least of the blades is provided with outwardly projecting hook-shaped portions engaging correspondingly shaped grooves in the supporting rings and sealed in this engagement by means of locking rings bearing against the inside of the ends of the blades. One of the supporting rings 3, Fig. 1, is connected to a seating ring 4 by means of an expansion ring 5 and an auxiliary ring 6. The seating ring 4 is attached as by caulking to a turbine disc, not shown. Rings 5 and 6 may be formed integrally with one another. The blade 1 has dovetail ends 2, and is clamped between each supporting ring and a locking ring 9. The flange 10 of the latter is forced by rolling into engagement with the blade root. In a modified form, Fig. 4, the ring 9 is locked against axial displacement by means of a flange 11 engaging a corresponding slot of the supporting ring. The flanges 10 and 11 may be of conical form, Fig. 6, rolled into engagement with corresponding slots in the blade and supporting ring, and may be duplicated. In the form shown in Fig. 10, a metal ring 15 is used to force the blade root 2 against the hook 14 and the ring 9 against a conical surface 16. The ring 15 may be omitted ; there may be two hooks 14. In all cases the ring 9 may be divided by being slit at. one or more points, and may be inserted into the desired position and the slits subsequently filled by caulking or by welding. If the ring 9 is divided, an undivided ring having a conical outer surface engaging with a corresponding conical inner surface of the ring 9 may be driven axially into it to force it outwards. Groups of blades may have their roots turned to the desired profile, and while still clamped in a suitable fixing device may be moved to the supporting rings without changing their relative positions. The supporting rings may be shrunk on to the blades. The blades may be provided with distance pieces or may be welded to shroud rings which are afterwards turned to the desired profile.
GB16534/45A 1944-07-05 1945-06-28 Improved blade ring for radial flow elastic fluid turbines and method of manufacturing same Expired GB594204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE594204X 1944-07-05

Publications (1)

Publication Number Publication Date
GB594204A true GB594204A (en) 1947-11-05

Family

ID=20312694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16534/45A Expired GB594204A (en) 1944-07-05 1945-06-28 Improved blade ring for radial flow elastic fluid turbines and method of manufacturing same

Country Status (1)

Country Link
GB (1) GB594204A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852227A (en) * 1948-02-27 1958-09-16 Svenska Turbinfab Ab Blade rings for radial flow elastic fluid machines
US3032318A (en) * 1956-08-11 1962-05-01 Lindblom Erik David Radial flow elastic fluid compressors or turbines
US7329096B2 (en) * 2005-10-18 2008-02-12 General Electric Company Machine tooled diaphragm partitions and nozzles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852227A (en) * 1948-02-27 1958-09-16 Svenska Turbinfab Ab Blade rings for radial flow elastic fluid machines
US3032318A (en) * 1956-08-11 1962-05-01 Lindblom Erik David Radial flow elastic fluid compressors or turbines
US7329096B2 (en) * 2005-10-18 2008-02-12 General Electric Company Machine tooled diaphragm partitions and nozzles
US7470109B2 (en) * 2005-10-18 2008-12-30 General Electric Co. Machine tooled diaphragm partitions and nozzles

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