EP1882813A3 - A mounting disc for turbine or compressor blades - Google Patents

A mounting disc for turbine or compressor blades Download PDF

Info

Publication number
EP1882813A3
EP1882813A3 EP07252734.4A EP07252734A EP1882813A3 EP 1882813 A3 EP1882813 A3 EP 1882813A3 EP 07252734 A EP07252734 A EP 07252734A EP 1882813 A3 EP1882813 A3 EP 1882813A3
Authority
EP
European Patent Office
Prior art keywords
compressor blades
face
von
turbine
reduction
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.)
Withdrawn
Application number
EP07252734.4A
Other languages
German (de)
French (fr)
Other versions
EP1882813A2 (en
Inventor
Philip Scope
Nicholas Bayley
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of EP1882813A2 publication Critical patent/EP1882813A2/en
Publication of EP1882813A3 publication Critical patent/EP1882813A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape
    • F05D2250/71—Shape curved
    • F05D2250/711—Shape curved convex

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Mounting discs (20, 30, 40, 50) are used in gas turbine engines to present turbine or compressor blades. These discs (20, 30, 40, 50) incorporate a bore or cob end 31, 41, 51 which in turn previously had a flat end face surface. Such flat end face surfaces are weight efficient but can lead to reduced component life and a limitation with regard to rotational speed due to Von-Mises stresses. By providing a deviation (39, 49, 59, 69) in the end face from a flat aspect, a reduction in axial stress is achieved with a marginal increase in hoop stress but with a net result that there is a reduction in the general operational Von-Mises stresses and therefore improvement in disc life or potential rotation speed capacity or both.
EP07252734.4A 2006-07-28 2007-07-07 A mounting disc for turbine or compressor blades Withdrawn EP1882813A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0614972.8A GB0614972D0 (en) 2006-07-28 2006-07-28 A mounting disc

Publications (2)

Publication Number Publication Date
EP1882813A2 EP1882813A2 (en) 2008-01-30
EP1882813A3 true EP1882813A3 (en) 2013-09-04

Family

ID=37006299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07252734.4A Withdrawn EP1882813A3 (en) 2006-07-28 2007-07-07 A mounting disc for turbine or compressor blades

Country Status (3)

Country Link
US (1) US20080025843A1 (en)
EP (1) EP1882813A3 (en)
GB (1) GB0614972D0 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10544677B2 (en) 2017-09-01 2020-01-28 United Technologies Corporation Turbine disk
US10633985B2 (en) * 2012-06-25 2020-04-28 General Electric Company System having blade segment with curved mounting geometry
US10024170B1 (en) * 2016-06-23 2018-07-17 Florida Turbine Technologies, Inc. Integrally bladed rotor with bore entry cooling holes
EP3406847A1 (en) * 2017-05-26 2018-11-28 Siemens Aktiengesellschaft Gas turbine engine rotor disc, corresponding gas turbine rotor disc assembly and gas turbine engine
US10472968B2 (en) 2017-09-01 2019-11-12 United Technologies Corporation Turbine disk
US10724374B2 (en) 2017-09-01 2020-07-28 Raytheon Technologies Corporation Turbine disk
US10550702B2 (en) 2017-09-01 2020-02-04 United Technologies Corporation Turbine disk
US10641110B2 (en) 2017-09-01 2020-05-05 United Technologies Corporation Turbine disk
EP3633144A1 (en) * 2018-10-04 2020-04-08 Rolls-Royce plc Compressor disc

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272966A1 (en) * 1986-12-03 1988-06-29 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Disc connecting system for the rotor of a turbo machine
US5860789A (en) * 1996-03-19 1999-01-19 Hitachi, Ltd. Gas turbine rotor
EP1503036A2 (en) * 2003-07-28 2005-02-02 United Technologies Corporation Contoured turbine disk bore
EP1512834A2 (en) * 2003-09-04 2005-03-09 General Electric Company Gas turbine air baffle for rotating cavity
EP1801349A1 (en) * 2005-12-20 2007-06-27 General Electric Company High pressure turbine disk hub with reduced axial stress and method
EP1801347A2 (en) * 2005-12-20 2007-06-27 General Electric Company High pressure turbine disk hub with curved hub surface and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708507A1 (en) * 1987-03-16 1988-09-29 Siemens Ag METHOD FOR PRODUCING TURBINE WHEEL DISCS WITH LOCAL HIGH PRESSURE TENSIONS IN THE HUB HOLE
US5215440A (en) * 1991-10-30 1993-06-01 General Electric Company Interstage thermal shield with asymmetric bore
US5320488A (en) * 1993-01-21 1994-06-14 General Electric Company Turbine disk interstage seal anti-rotation system
FR2712029B1 (en) * 1993-11-03 1995-12-08 Snecma Turbomachine provided with a means for reheating the turbine disks when running at high speed.
CA2717264C (en) * 2000-02-01 2014-04-29 Pyrotek, Inc. Pump for molten materials with suspended solids
DE102004016244B4 (en) * 2004-04-02 2007-08-23 Mtu Aero Engines Gmbh Rotor for a turbomachine
EP1614857A1 (en) * 2004-07-05 2006-01-11 Siemens Aktiengesellschaft Turbomachine with a rotor comprising at least one drilled disc
US7470115B2 (en) * 2004-07-13 2008-12-30 Honeywell International Inc. Outer diameter nut piloting for improved rotor balance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272966A1 (en) * 1986-12-03 1988-06-29 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Disc connecting system for the rotor of a turbo machine
US5860789A (en) * 1996-03-19 1999-01-19 Hitachi, Ltd. Gas turbine rotor
EP1503036A2 (en) * 2003-07-28 2005-02-02 United Technologies Corporation Contoured turbine disk bore
EP1512834A2 (en) * 2003-09-04 2005-03-09 General Electric Company Gas turbine air baffle for rotating cavity
EP1801349A1 (en) * 2005-12-20 2007-06-27 General Electric Company High pressure turbine disk hub with reduced axial stress and method
EP1801347A2 (en) * 2005-12-20 2007-06-27 General Electric Company High pressure turbine disk hub with curved hub surface and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DEM'YANUSHKO I V ET AL: "OPTIMAL DESIGN OF ROTATING DISKS", RUSSIAN ENGINEERING RESEARCH, ALLERTON PRESS, NEW YORK, NY, US, vol. 16, no. 7, 1 January 1996 (1996-01-01), pages 7 - 13, XP000699743, ISSN: 1068-798X *

Also Published As

Publication number Publication date
GB0614972D0 (en) 2006-09-06
US20080025843A1 (en) 2008-01-31
EP1882813A2 (en) 2008-01-30

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