GB869335A - Improvements in and relating to blading in turbines and like fluid flow machines - Google Patents

Improvements in and relating to blading in turbines and like fluid flow machines

Info

Publication number
GB869335A
GB869335A GB1968660A GB1968660A GB869335A GB 869335 A GB869335 A GB 869335A GB 1968660 A GB1968660 A GB 1968660A GB 1968660 A GB1968660 A GB 1968660A GB 869335 A GB869335 A GB 869335A
Authority
GB
United Kingdom
Prior art keywords
secured
blades
pins
web member
bosses
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
GB1968660A
Inventor
Otto Paul Theodor Kantorowicz
Basil Joseph Terrell
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.)
Parsons and Marine Engineering Turbine Research and Development Association
Original Assignee
Parsons and Marine Engineering Turbine Research and Development Association
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 Parsons and Marine Engineering Turbine Research and Development Association filed Critical Parsons and Marine Engineering Turbine Research and Development Association
Priority to GB1968660A priority Critical patent/GB869335A/en
Publication of GB869335A publication Critical patent/GB869335A/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
    • 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
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations

Landscapes

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

Abstract

869,335. Elastic-fluid turbines. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Aug. 8, 1958 [Dec. 13, 1957], No. 19686/60. Divided out of 863,036. Class 110 (3). To increase the resistance of turbine blades to deflection relative to each other in a direction parallel to the rotor axis, web members extend across the width of each blade and are secured to the blades, intermediate the blade tips and roots, by at least two pins or by at least one projection of non-circular cross-section, whereby the web members are prevented from being angularly displaced about a circumferential axis. In one embodiment of the invention, Figs. 1 and 3, the web member is constituted by metal pressings 8 brazed or otherwise connected together and having channel-shaped outer edges which fit over pins 2a, 3a secured therein. The pins pass through apertures in the blades and are secured in the ends of the adjacent web member. The web members are shaped to fit between the blades and are brazed or otherwise secured thereto. In the embodiment shown in Figs. 7 and 8, the rigid web member 22 has hollow formations 24 secured to the blades by pins, while fairings 25a are secured to the crossmember 23. In a third embodiment, see Fig. 6, each web member 10 is of aerofoil section and is provided with non-circular bosses or dogs 11 which engage with recesses formed in the blades. Pins 14 engage in the bores 12 formed in the bosses and extend into bores 15 in the adjacent web member. Alternatively two or more sets of hollow bosses, located out of line, may be provided. In a modification the bosses are dispensed with and two sets of holes are provided in the web member to accommodate the blade engaging pins.
GB1968660A 1957-12-13 1957-12-13 Improvements in and relating to blading in turbines and like fluid flow machines Expired GB869335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1968660A GB869335A (en) 1957-12-13 1957-12-13 Improvements in and relating to blading in turbines and like fluid flow machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1968660A GB869335A (en) 1957-12-13 1957-12-13 Improvements in and relating to blading in turbines and like fluid flow machines

Publications (1)

Publication Number Publication Date
GB869335A true GB869335A (en) 1961-05-31

Family

ID=10133508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1968660A Expired GB869335A (en) 1957-12-13 1957-12-13 Improvements in and relating to blading in turbines and like fluid flow machines

Country Status (1)

Country Link
GB (1) GB869335A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112865A (en) * 1961-10-03 1963-12-03 Gen Electric Blade platform structure
US3981615A (en) * 1974-11-14 1976-09-21 Groupe Europeen Pour La Technique Des Turbines A Vapeur G.E.T.T. Continuous connection device for the mobile blades of a turbo-machine
GB2251897A (en) * 1991-01-15 1992-07-22 Rolls Royce Plc Bladed rotor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112865A (en) * 1961-10-03 1963-12-03 Gen Electric Blade platform structure
US3981615A (en) * 1974-11-14 1976-09-21 Groupe Europeen Pour La Technique Des Turbines A Vapeur G.E.T.T. Continuous connection device for the mobile blades of a turbo-machine
GB2251897A (en) * 1991-01-15 1992-07-22 Rolls Royce Plc Bladed rotor
GB2251897B (en) * 1991-01-15 1994-11-30 Rolls Royce Plc A rotor

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