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GB574759A - Improvements in or relating to turbine blades - Google Patents

Improvements in or relating to turbine blades

Info

Publication number
GB574759A
GB574759A GB2856/44A GB285644A GB574759A GB 574759 A GB574759 A GB 574759A GB 2856/44 A GB2856/44 A GB 2856/44A GB 285644 A GB285644 A GB 285644A GB 574759 A GB574759 A GB 574759A
Authority
GB
United Kingdom
Prior art keywords
bearing surfaces
rotor
blade
angle
planes passing
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
GB2856/44A
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.)
AKTIENBOLAGET LJUNGSTROEMS ANG
Original Assignee
AKTIENBOLAGET LJUNGSTROEMS ANG
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 AKTIENBOLAGET LJUNGSTROEMS ANG filed Critical AKTIENBOLAGET LJUNGSTROEMS ANG
Publication of GB574759A publication Critical patent/GB574759A/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
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type

Landscapes

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

Abstract

574,759. Elastic-fluid turbines. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Feb. 16, 1944, No. 2856. Convention date, .Tan. 16, 1943. [Class 110 (iii)] A turbine blade 10 having a root formed with two or more projections 20, 22, has bearing surfaces 34, 36, with the rotor disc 14, in which bearing surfaces are disposed at an angle to each other. Planes passing through the bearing surfaces may intersect on the axis 24 of the blade, or at a point 38, the distance a-b being considerably less than the average distance between the bearing surfaces. Clearances 40, 42, allow for differential expansion between the blade root and the rotor. The angle between the planes passing through the bearing surfaces is at least 20‹. The blades are of austenitic steel and the rotor of martensitic steel. The roots of guide blades may be similarly formed.
GB2856/44A 1943-01-16 1944-02-16 Improvements in or relating to turbine blades Expired GB574759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE249717X 1943-01-16

Publications (1)

Publication Number Publication Date
GB574759A true GB574759A (en) 1946-01-18

Family

ID=20306139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2856/44A Expired GB574759A (en) 1943-01-16 1944-02-16 Improvements in or relating to turbine blades

Country Status (4)

Country Link
US (1) US2429215A (en)
CH (1) CH249717A (en)
FR (1) FR901235A (en)
GB (1) GB574759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263736A (en) * 1992-01-30 1993-08-04 Gen Electric Rotor blade and rotor assembly.

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH284188A (en) * 1948-10-01 1952-07-15 Maschf Augsburg Nuernberg Ag Steel rotor with ceramic blades for turbines.
DE2242448A1 (en) * 1972-08-29 1974-03-07 Motoren Turbinen Union IMPELLER FOR FLOW MACHINE
US4191509A (en) * 1977-12-27 1980-03-04 United Technologies Corporation Rotor blade attachment
US4820126A (en) * 1988-02-22 1989-04-11 Westinghouse Electric Corp. Turbomachine rotor assembly having reduced stress concentrations
US4813850A (en) * 1988-04-06 1989-03-21 Westinghouse Electric Corp. Integral side entry control stage blade group
US5001830A (en) * 1989-10-23 1991-03-26 Westinghouse Electric Corp. Method for assembling side entry control stage blades in a steam turbine
EP1703080A1 (en) * 2005-03-03 2006-09-20 ALSTOM Technology Ltd Rotating machine
KR20140098867A (en) 2005-11-11 2014-08-08 버텍스 파마슈티칼스 인코포레이티드 Hepatitis c virus variants
US20080050238A1 (en) * 2006-08-24 2008-02-28 Pratt & Whitney Canada Corp. Disc firtree slot with truncation for blade attachment
US20090208339A1 (en) * 2008-02-15 2009-08-20 United Technologies Corporation Blade root stress relief
FR2937370B1 (en) * 2008-10-16 2013-06-14 Snecma TURBINE WHEEL DISC.
EP2762676A1 (en) * 2013-02-04 2014-08-06 Siemens Aktiengesellschaft Turbomachine rotor blade, turbomachine rotor disc, turbomachine rotor, and gas turbine engine with different root and slot contact face angles
US10895160B1 (en) * 2017-04-07 2021-01-19 Glenn B. Sinclair Stress relief via unblended edge radii in blade attachments in gas turbines

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB279312A (en) * 1927-03-10 1927-10-27 British Thomson Houston Co Ltd Improvements in and relating to elastic fluid turbines
US2058479A (en) * 1933-03-10 1936-10-27 Milo Ab Turbine for hot driving media
US2220616A (en) * 1936-02-29 1940-11-05 Roder Karl Packing for steam turbines
NL45769C (en) * 1936-05-28
GB546515A (en) * 1940-03-26 1942-07-16 Bbc Brown Boveri & Cie Improvements in or relating to intermediate pieces for the blading of steam or gas turbines
CH217031A (en) * 1940-11-23 1941-09-30 Boehmisch Maehrische Maschinen Running disc with blades that can be adjusted at standstill for rotating machines with axial flow.
US2295012A (en) * 1941-03-08 1942-09-08 Westinghouse Electric & Mfg Co Turbine blading

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263736A (en) * 1992-01-30 1993-08-04 Gen Electric Rotor blade and rotor assembly.
GB2263736B (en) * 1992-01-30 1995-05-24 Gen Electric Rotor blade and rotor assembly

Also Published As

Publication number Publication date
FR901235A (en) 1945-07-20
US2429215A (en) 1947-10-21
CH249717A (en) 1947-07-15

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