US2386527A - Turbine rotor - Google Patents

Turbine rotor Download PDF

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Publication number
US2386527A
US2386527A US528327A US52832744A US2386527A US 2386527 A US2386527 A US 2386527A US 528327 A US528327 A US 528327A US 52832744 A US52832744 A US 52832744A US 2386527 A US2386527 A US 2386527A
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US
United States
Prior art keywords
blades
disc
lugs
blade
feet
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
US528327A
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English (en)
Inventor
Wiberg Oscar Anton
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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Publication of US2386527A publication Critical patent/US2386527A/en
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

  • each individual blade may be sealed to the disc
  • said patent along said of the:periphera1 length of the blades'ito-a -turbine-disc without deforming the blades,- nor the disc, has proved diflicult owing
  • the invention is characterized, chiefly, by the provision of a main group of blades having lugs extending alongv a portion only of the-peripheral length of -the feet from one end thereof, a minor group: Ofi blades having feet corresponding in position" and peripheral length to the respective lugs only, the'remainder of the feet having been cut away, an -additional .blade having a foot of the-same peripheral length as the said firstmentioned blades and lugs thereon extending along a portion of-theperiphera1 length of the foot from the 'oppo'site end-thereof as compared with the lugs of I said I first-mentioned blades, and means to' maintain the bladesof said minor group in predetermined positions with relation to each other-andto the said additional blade, said disc, having an inlet passage or passages to allow the applying of:the blades.
  • the additional blade having reversely positioned lugs may be inserted through the inlet passage andzdisplaced peripherally to its final position on theyotherside of. the inlet passage into engagemerit with the lugs of the periphery of-the disc without: requiring the entire set of blades to be pushed back. Then, it is only required to move the blades of. the minor group apartpand fix them 'in' exact relative positions bymeans of distance pieces which correspond in size and form to the cutlaway portionsof the blade feet and like 'thes' have no lugs.
  • thedistance piece is made to'be la'st insertedtapered or wedge-shaped at its end, so that it maybe forced into its respective space in order to remove any ment of the invention is shown in Figs, 1 3, 5 and '7, which figures iilllistrat'e evarious' stages of ,the l assembling'of th'e turbine rotor the radius of which for the sake of simplicity may be assumedto be infinite and the periphery of which, as a result, may be represented by a straighttlified.
  • Figs. 2, 4, 6 and 8 show axial sections onithe 1 ines...15
  • Figs. 2a, 4a, 6a and 6b are sectional views similar to Figs. 2, 4, 6 and 8 respectivelyof" aemodi-fied-rem-bodiment "10f: the.- :invention::.,
  • peripheral turbine:disc-:portion:icarries: onibothu of its; sides... ci-reumferentiallyyextendingu claw-9: g tanceepieces lisaeprovidedewith' lugsr. In .order;to
  • blades 6 are displaced onto the space a and pushed thumb sufficiently to allow the insertion through passage 3.0f the additional blade I.
  • fbiiintheelugsi extend along of the peripheral length of the foot from the opposite end thereof aspompared with the lugs of blades 4, that is to saw fllonnrthe right.handuend instead.;of from theeleft, ehand'zend: thereof as. shown in-.-.Fig. 3
  • the additionalr-blader'l iswmovedz ontoahe space eh until; it comes intowengagement with itheelastibladee l yonathis. -de-. of:- the inlet passages s. shown: EinF ig'; 51a.
  • the" lugssoft-theradditionabrblade I are -.brought into engagement withrtherlugs.2 of gtheeperipheral disc.- orz ion-e 7 gBetwteenneache wo adiacentzbladesrt .I thenlne seri: ldistance: pieceasB icorrespondihg. in; size": and; shape tOxiZhGcCllt fiWd ⁇ ! portionszofiltheblade feet; andebetweemblade :1 :andmheradjacent; blade: 6W1.
  • numeraLzL-s and arez. provided with. circumferena-l tial-lyeextending outwardly.pointinglclaw shapel lugs .Seprortidedgifor; instanoe,-.on:a Lofztheapee ripheral lengths ofzthe blade e-feet from. one end;
  • ini'sei ies-ea main group of blades the feet ofwhich are formed with lugsandgreovesalong-a fraction of their peripheral-length as :reekone'd from one peripherals endr' of the I feet; aminor group of-f' thereofv; Afterzinsertion:ithroughzpassage:3; thee; fifiiiblade ffofngthegfeedi ofgjwh jch blades: 4 arel displaced: to zbothisides i of 2 theeinletz. passage until; at .one :side :of?

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
US528327A 1943-02-24 1944-03-27 Turbine rotor Expired - Lifetime US2386527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE572090X 1943-02-24

Publications (1)

Publication Number Publication Date
US2386527A true US2386527A (en) 1945-10-09

Family

ID=20312279

Family Applications (1)

Application Number Title Priority Date Filing Date
US528327A Expired - Lifetime US2386527A (en) 1943-02-24 1944-03-27 Turbine rotor

Country Status (4)

Country Link
US (1) US2386527A (fr)
DE (1) DE890051C (fr)
FR (1) FR901865A (fr)
GB (1) GB572090A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506992A (en) * 1945-02-26 1950-05-09 Curtiss Wright Corp Blade construction and propeller blade
US2835471A (en) * 1952-02-26 1958-05-20 W H Allen Sons & Company Ltd Securing of blading to turbine wheels and other high speed rotary members
US3887485A (en) * 1969-10-31 1975-06-03 Jenaer Glaswerk Schott & Gen Solid optical filter having selective wavelength permeability
US4730984A (en) * 1986-09-08 1988-03-15 Ortolano Ralph J Bladed rotor structure having bifurcated blade roots

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528640A1 (de) * 1985-06-28 1987-01-08 Bbc Brown Boveri & Cie Schaufelschloss fuer reiterfusschaufeln von turbomaschinen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2506992A (en) * 1945-02-26 1950-05-09 Curtiss Wright Corp Blade construction and propeller blade
US2835471A (en) * 1952-02-26 1958-05-20 W H Allen Sons & Company Ltd Securing of blading to turbine wheels and other high speed rotary members
US3887485A (en) * 1969-10-31 1975-06-03 Jenaer Glaswerk Schott & Gen Solid optical filter having selective wavelength permeability
US4730984A (en) * 1986-09-08 1988-03-15 Ortolano Ralph J Bladed rotor structure having bifurcated blade roots

Also Published As

Publication number Publication date
FR901865A (fr) 1945-08-08
DE890051C (de) 1953-09-17
GB572090A (en) 1945-09-21

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