GB667194A - Improvements in and relating to turbine rotors - Google Patents

Improvements in and relating to turbine rotors

Info

Publication number
GB667194A
GB667194A GB11456/49A GB1145649A GB667194A GB 667194 A GB667194 A GB 667194A GB 11456/49 A GB11456/49 A GB 11456/49A GB 1145649 A GB1145649 A GB 1145649A GB 667194 A GB667194 A GB 667194A
Authority
GB
United Kingdom
Prior art keywords
platforms
slots
fir
dummy
discs
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
GB11456/49A
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.)
Ruston and Hornsby Ltd
Original Assignee
Ruston and Hornsby Ltd
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 Ruston and Hornsby Ltd filed Critical Ruston and Hornsby Ltd
Publication of GB667194A publication Critical patent/GB667194A/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
    • F01D5/08—Heating, heat-insulating or cooling means
    • F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
    • F01D5/084—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades the fluid circulating at the periphery of a multistage rotor, e.g. of drum type
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • F01D11/008—Sealing the gap between rotor blades or blades and rotor by spacer elements between the blades, e.g. independent interblade platforms
    • 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
    • F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
    • F01D5/066—Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps

Landscapes

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

Abstract

667,194. Turbines. FIELDEN, G. B. R., and RUSTON & HORNSBY, Ltd. April 27, 1950. [April 29, 1949] No. 11456/49. Class 110(iii). In an axial-flow turbine rotor having at least two stages and comprising spaced discs 10, 11 each carrying a row of blades 17, 18 secured to the disc by fir-tree root fixings and having integral platforms whicla r e substantially contiguous circum ferentially, the inner wall of the working fluid annulus is completed by bridging the gap between mutually adjacent rows of blade platforms by a row of dummy platforms 19 having firtree roots which enter the fir-tree slots of both the adjacent discs. The roots of the blades are narrower axially than the axial width of the disc peripheries and the fir-tree slots so that the ends of the dummy platforms may engage in the slots. The dummy platforms have small slots 20 for ventilating the space between the discs which is supplied with cooling air.
GB11456/49A 1949-04-29 1949-04-29 Improvements in and relating to turbine rotors Expired GB667194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB284189X 1949-04-29

Publications (1)

Publication Number Publication Date
GB667194A true GB667194A (en) 1952-02-27

Family

ID=10275321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11456/49A Expired GB667194A (en) 1949-04-29 1949-04-29 Improvements in and relating to turbine rotors

Country Status (4)

Country Link
US (1) US2743080A (en)
CH (1) CH284189A (en)
GB (1) GB667194A (en)
NL (1) NL72215C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044527B (en) * 1955-07-16 1958-11-20 Canadian Patents Dev Device for connecting a hollow turbine shaft, in particular in the case of a gas turbine engine, with a cantilevered turbine impeller
US5611669A (en) * 1994-09-27 1997-03-18 Eupopean Gas Turbines Limited Turbines with platforms between stages

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901214A (en) * 1954-04-12 1959-08-25 Arthur J Slemmons Turbine wheel and shaft assembly
US3692429A (en) * 1971-02-01 1972-09-19 Westinghouse Electric Corp Rotor structure and method of broaching the same
US3745628A (en) * 1971-07-29 1973-07-17 Westinghouse Electric Corp Rotor structure and method of construction
DE2140816A1 (en) * 1971-08-14 1973-03-01 Motoren Turbinen Union ROTOR FOR FLOW MACHINERY
FR2295226A1 (en) * 1974-12-16 1976-07-16 Europ Turb Vapeur Turbine rotor disc mounting - uses tongue and groove dowel to accommodate radial displacements
FR2404134A1 (en) * 1977-09-23 1979-04-20 Snecma ROTOR FOR TURBOMACHINES
US5031400A (en) * 1988-12-09 1991-07-16 Allied-Signal Inc. High temperature turbine engine structure
FR2690202B1 (en) * 1992-04-17 1995-07-07 Alsthom Gec IMPROVEMENTS ON HIGH PRESSURE MODULES OF TURBINE ROTOR TURBINE WITH VAPOR INTAKE OF VERY HIGH CHARACTERISTICS.
US20130017092A1 (en) * 2011-07-11 2013-01-17 General Electric Company Rotor assembly for gas turbines
US10385861B2 (en) * 2012-10-03 2019-08-20 Praxair Technology, Inc. Method for compressing an incoming feed air stream in a cryogenic air separation plant
US10443603B2 (en) 2012-10-03 2019-10-15 Praxair Technology, Inc. Method for compressing an incoming feed air stream in a cryogenic air separation plant
US9371835B2 (en) * 2013-07-19 2016-06-21 Praxair Technology, Inc. Coupling for directly driven compressor
CN107269316A (en) * 2017-08-17 2017-10-20 中南大学 A kind of disc of conical profile structure of gas turbine central draw bar type rotor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599809A (en) * 1945-01-15 1948-03-22 Bristol Aeroplane Co Ltd Improvements in axial flow compressors, turbines and the like
GB319622A (en) * 1928-09-24 1930-12-18 Vladimir Kalabek Gas turbine
NL66706C (en) * 1944-10-06
US2497151A (en) * 1946-03-04 1950-02-14 Armstrong Siddeley Motors Ltd Multidisk rotor
US2430185A (en) * 1946-07-25 1947-11-04 Continental Aviat & Engineerin Turbine rotor
GB612097A (en) * 1946-10-09 1948-11-08 English Electric Co Ltd Improvements in and relating to the cooling of gas turbine rotors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044527B (en) * 1955-07-16 1958-11-20 Canadian Patents Dev Device for connecting a hollow turbine shaft, in particular in the case of a gas turbine engine, with a cantilevered turbine impeller
US5611669A (en) * 1994-09-27 1997-03-18 Eupopean Gas Turbines Limited Turbines with platforms between stages
EP0709548A3 (en) * 1994-09-27 1997-08-13 Europ Gas Turbines Ltd Inter-blade seal

Also Published As

Publication number Publication date
NL72215C (en)
CH284189A (en) 1952-07-15
US2743080A (en) 1956-04-24

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