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US1353797A - Elastic-fluid turbine - Google Patents

Elastic-fluid turbine Download PDF

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Publication number
US1353797A
US1353797A US359077A US35907720A US1353797A US 1353797 A US1353797 A US 1353797A US 359077 A US359077 A US 359077A US 35907720 A US35907720 A US 35907720A US 1353797 A US1353797 A US 1353797A
Authority
US
United States
Prior art keywords
bucket
buckets
rim
ridges
legs
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
US359077A
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
Priority to NL8110D priority Critical patent/NL8110C/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US359077A priority patent/US1353797A/en
Application granted granted Critical
Publication of US1353797A publication Critical patent/US1353797A/en
Priority to DE1921350430D priority patent/DE350430C/de
Priority to FR540763D priority patent/FR540763A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01D5/3046—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses the rotor having ribs around the circumference

Definitions

  • lvenntor' Chr-is anSLeernstw-up, by n* sTEENsTRuP.
  • the object or my invention is to provide structure and arrangement whereby it is only possible'to set up' initial stresses in thebucket rings of a desired magnitude, and to this end ing stripsl along the edges of the buckets,
  • Figure l is a radial sectional view ott a portion oi aturbine motor having bucket fastening means embodying my invention
  • Fig. 2 is a' side elevation or' the arrangement showniin Fig. 1
  • Fig 8 is a section taken on line 3-3 F ig. 1
  • Figs, 4 and 5 are views similar to Figs.v l-,and 2 of a modiiication
  • Figa@ is a radial sectional view of a furthermodiicationj ln Figs.
  • I overcome the above referred to diliiculties by providing crushing strips 16 between the bucket bases which serve to reduce the area oiA contact between adjacent buckets so that rc ⁇ A gardless of the amount o'l pressure that may be applied on the sides oi" the buckets, stresses exceeding a predetermined value cannot be set up in the bucket ring since it' such stresses are. exceeded, strips l6 will be crushed.
  • the crushing strips 16 serve to space apart slightly adjacent buckets at the ends oi" the ridges 15 so that even though such ridges do flow cir cumferentially somewhat during the'squcezing-up operation', they will not come into cngagement with adjacent buckets so as to prevent radially outward movement.
  • ridges 15 Willjnot liow circumferentially sufiiciently during the squeezing ⁇ up operations to frictionally engage, and lock themselves against the next adjacent buckets.
  • FIG. 4l an inverted dovetail fastening means is shown ot i thetypc wherein the buckets are put on the rim oi the Wheel through filling slots and moved around into correct spaced relation 'to'each other, the bases olE adjacent buckets vbeing brought into engagement with each other, or with suit-able spacing blocks located between the bucket bases.
  • 2() indicates a bucket wheel having' a rim 2l provided with an annular head 22. which forms projections 23.
  • the buckctslr are provided with U- shaped bases comprising legs 25 which.
  • lletwccn adjacent buckets are crushing strips )l similar to crushing strips i6 ot ll ⁇ igs. l to Il and at the inner ends of the bucket base legs are crushing strips 3l) located between. the bottoms of such legs and iianges 2S.
  • Crushing strips 30 may extend either crosswise or circumferentially as found de,-
  • Figs. 4 and 5 l have shown them 11o as estenihng crosswisc while in Fig. 6 l ⁇ have shown a modified arrangement in which they extend circumferentially.
  • a bucketlcarrying member having a rim, and buckets having bases which straddle said rim, said buckets being provided with crushing strips which serve to limit the stresses set up in the bucket ring.
  • a bucketcarrying.' member having a rim with ridges .thereong buckets which straddle said rim and havia ridges which interlock with said 4first named ridges, and integral crushing strips located between adjacent surfaces of the buckets.
  • vbuckets having bases which are attached to said rim and terminate at said shoulders, crushing strips between the bottom of the bucket bases and said shoulders, and crushing strips between adjacent surfaces of the buckets.
  • a bucket ring 'having buckets provided with crushing strips along their sides and at' their bottoms.

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)
US359077A 1920-02-16 1920-02-16 Elastic-fluid turbine Expired - Lifetime US1353797A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL8110D NL8110C (xx) 1920-02-16
US359077A US1353797A (en) 1920-02-16 1920-02-16 Elastic-fluid turbine
DE1921350430D DE350430C (de) 1920-02-16 1921-02-12 Schaufelbefestigung fuer Dampf- und Gasturbinen
FR540763D FR540763A (fr) 1920-02-16 1921-02-15 Perfectionnements apportés aux turbines à fluide élastique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359077A US1353797A (en) 1920-02-16 1920-02-16 Elastic-fluid turbine

Publications (1)

Publication Number Publication Date
US1353797A true US1353797A (en) 1920-09-21

Family

ID=23412213

Family Applications (1)

Application Number Title Priority Date Filing Date
US359077A Expired - Lifetime US1353797A (en) 1920-02-16 1920-02-16 Elastic-fluid turbine

Country Status (4)

Country Link
US (1) US1353797A (xx)
DE (1) DE350430C (xx)
FR (1) FR540763A (xx)
NL (1) NL8110C (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864706A (en) * 1987-08-12 1989-09-12 United Technologies Corporation Fabrication of dual alloy integrally bladed rotors
US6142737A (en) * 1998-08-26 2000-11-07 General Electric Co. Bucket and wheel dovetail design for turbine rotors
US6652237B2 (en) * 2001-10-15 2003-11-25 General Electric Company Bucket and wheel dovetail design for turbine rotors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864706A (en) * 1987-08-12 1989-09-12 United Technologies Corporation Fabrication of dual alloy integrally bladed rotors
US6142737A (en) * 1998-08-26 2000-11-07 General Electric Co. Bucket and wheel dovetail design for turbine rotors
US6652237B2 (en) * 2001-10-15 2003-11-25 General Electric Company Bucket and wheel dovetail design for turbine rotors

Also Published As

Publication number Publication date
FR540763A (fr) 1922-07-18
DE350430C (de) 1922-03-21
NL8110C (xx)

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