US1470505A - Elastic-fluid turbine - Google Patents

Elastic-fluid turbine Download PDF

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Publication number
US1470505A
US1470505A US434417A US43441721A US1470505A US 1470505 A US1470505 A US 1470505A US 434417 A US434417 A US 434417A US 43441721 A US43441721 A US 43441721A US 1470505 A US1470505 A US 1470505A
Authority
US
United States
Prior art keywords
wheel
buckets
bucket
ring
cover
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 - Lifetime
Application number
US434417A
Other languages
English (en)
Inventor
Steenstrup Christian
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US434417A priority Critical patent/US1470505A/en
Priority to GB17721/21A priority patent/GB180581A/en
Priority to FR545430D priority patent/FR545430A/fr
Application granted granted Critical
Publication of US1470505A publication Critical patent/US1470505A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member

Definitions

  • Ems'rIc-FLUID TUBBINE Ems'rIc-FLUID TUBBINE.
  • the present invention relates to elastic fluid turbines and has for its primary objectI to provide ank improved method of making a blade carrying rotor for use in such machines.
  • Fig. 1 is a sectional view of a more or less diagrammatic nature illustrating'my invention
  • Fig. 2 is a sectional view of a blade wheel made in accordance with my invention
  • Fig. 3 is a side'elevation of a portion of the wheel shown in Fig. 2
  • Fig. 4 is an edge view of a fragment of the holding rings used in carrying out my invention.
  • 5 indicates a round base having a flangev provided with a beveled inner surface 7 and 8 indicates a collapsible ring having a beveled surface 9 adapted to cooperate with surface 7 soy when ring 8 is pushed down within flange 6 the ring will be compressed or collapsed.
  • Ring 8 is preferably rendered collapsible by providing spaced slots 9ain itwhich extend alternately from opposite sides of the ring but do not go entirely through. Such an arrangement allows the ring to be squeezed to a smaller diameter or collapsed without twisting or circumferential movement.
  • In its base ring 8 is provided with ledges 8l and 8l.l
  • Inthe bottom of base 5 at its centerV is 'an opening 10 of a size to receive a post 11.
  • slots 18 and 19 have one straight edge and.one sloping edge, the latter .conforming to' the bevel of the bucket backs.
  • the buckets 20 comprise straight strips of bucket' material properly shaped to form the front and back, and provided at their ends with a suitable number of small sharp edged projections 21. In the present instance two projections 21 are shown at-each bucket end. In the drawing Fig. 1 the heights of projection 21 are somewhat exaggerated in size 4for purposes of illustration. Projections 21 may be formed in any suitable manner and after they are formed they are hardened as by case hardening so they form a projection which is harder than the wheel and bucket cover.
  • projections 21 embed 15 themselves in the surfaces of the wheel and cover and the operation is continued until the buckets are very firmly gripped between the rim of the wheel and the cover.
  • projections 21 will be completely embedded and the ends of the'buckets will be in close Contact with the peripheral surface of the wheel and the inner surface of the bucket cover.
  • the small projections 21 are for the pur- 25pose'of providing a means to engage with (the wheel and bucket cover at the beginning of "the squeezing operation to prevent 'the buckets from. twisting or sliding. As soon as the bucket cover clamps the buckets between it and the wheel and -before it is fully squeezed into place, projections 21 bite into the cover and wheel and fix the buckets relatively thereto. The projections serve also to i" hold the buckets during the brazing operation referred to hereinafter.
  • My improved method has the advantages that it is simple and rapid and enables me Y to manufacture turbine wheels at a low cost. No complicated, special machinery is required and the work can be performed by relatively unskilled help. At the same time a strong wheel results in which the buckets are firmly anchored in place.
  • the buckets can be manufactured at a llow cost as the same can be cut from strip bucket material uniting the wheel, buckets and cover by s fusion of metal.
  • a turbne wheel which comprises mounting a wheel adjacent a bucket supporting member, assembling a ring of buckets on said member, which buckets have projections on their ends, squeezing a bucket cover around the outer ends of the buckets to flatten out and embed said projections in the peripheral surface of the wheel and the inner surface of the cover, and uniting the bucket ends to the wheel and cover by fusion of metal.
  • the method of manufacturing aturbine wheel which comprises mounting a wheel between holders which project beyond the periphery of the wheel and have spaced notches for the reception of the edges of buckets, assembling a ringl of buckets in said notches with their inner ends in proximity to the periphery of the wheel, placlng a heated bucket cover around the outer ends of the buckets, squeezing said bucket cover into engagement with the bucket ends and ermitting it to cool so as to grip the buc ets between the periphery of the wheel and the cover, and then uniting the ends of the buckets to the periphery of thewheel and to the bucket cover by fusion of metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
US434417A 1921-01-03 1921-01-03 Elastic-fluid turbine Expired - Lifetime US1470505A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US434417A US1470505A (en) 1921-01-03 1921-01-03 Elastic-fluid turbine
GB17721/21A GB180581A (en) 1921-01-03 1921-06-29 Improvements in and relating to elastic fluid turbines
FR545430D FR545430A (fr) 1921-01-03 1921-12-31 Perfectionnements aux turbines à fluide élastique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US434417A US1470505A (en) 1921-01-03 1921-01-03 Elastic-fluid turbine
GB17721/21A GB180581A (en) 1921-01-03 1921-06-29 Improvements in and relating to elastic fluid turbines

Publications (1)

Publication Number Publication Date
US1470505A true US1470505A (en) 1923-10-09

Family

ID=10100055

Family Applications (1)

Application Number Title Priority Date Filing Date
US434417A Expired - Lifetime US1470505A (en) 1921-01-03 1921-01-03 Elastic-fluid turbine

Country Status (3)

Country Link
US (1) US1470505A (fr)
FR (1) FR545430A (fr)
GB (1) GB180581A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2475772A (en) * 1943-03-31 1949-07-12 Allis Chalmers Mfg Co Method of blading rotors and other elements
US2482045A (en) * 1942-10-26 1949-09-13 Hpm Dev Corp Vane pump rotor
US2505820A (en) * 1945-02-28 1950-05-02 Borg Warner Means for assembling and retaining radially disposed vanes
US2628419A (en) * 1946-11-22 1953-02-17 Lau Blower Co Blower
DE752921C (de) * 1941-10-08 1953-05-11 Turbinenfabrik Brueckner Schweissbefestigung von axial beaufschlagten Schaufeln von Kreiselmaschinen, insbesondere Dampf- oder Gasturbinen, und Vorrichtung zu ihrer Durchfuehrung
US2639886A (en) * 1950-11-17 1953-05-26 Thompson Prod Inc Shrouded wheel
US2730794A (en) * 1951-01-20 1956-01-17 Maschf Augsburg Nuernberg Ag Method and apparatus for finishing turbine blades
EP0042744A1 (fr) * 1980-06-23 1981-12-30 The Garrett Corporation Roues à aubes en deux alliages
US4494287A (en) * 1983-02-14 1985-01-22 Williams International Corporation Method of manufacturing a turbine rotor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752921C (de) * 1941-10-08 1953-05-11 Turbinenfabrik Brueckner Schweissbefestigung von axial beaufschlagten Schaufeln von Kreiselmaschinen, insbesondere Dampf- oder Gasturbinen, und Vorrichtung zu ihrer Durchfuehrung
US2482045A (en) * 1942-10-26 1949-09-13 Hpm Dev Corp Vane pump rotor
US2475772A (en) * 1943-03-31 1949-07-12 Allis Chalmers Mfg Co Method of blading rotors and other elements
US2505820A (en) * 1945-02-28 1950-05-02 Borg Warner Means for assembling and retaining radially disposed vanes
US2628419A (en) * 1946-11-22 1953-02-17 Lau Blower Co Blower
US2639886A (en) * 1950-11-17 1953-05-26 Thompson Prod Inc Shrouded wheel
US2730794A (en) * 1951-01-20 1956-01-17 Maschf Augsburg Nuernberg Ag Method and apparatus for finishing turbine blades
EP0042744A1 (fr) * 1980-06-23 1981-12-30 The Garrett Corporation Roues à aubes en deux alliages
US4494287A (en) * 1983-02-14 1985-01-22 Williams International Corporation Method of manufacturing a turbine rotor

Also Published As

Publication number Publication date
FR545430A (fr) 1922-10-11
GB180581A (en) 1922-06-01

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