GB985772A - Improvements in blades for gas turbines - Google Patents

Improvements in blades for gas turbines

Info

Publication number
GB985772A
GB985772A GB155161D GB155161D GB985772A GB 985772 A GB985772 A GB 985772A GB 155161 D GB155161 D GB 155161D GB 155161 D GB155161 D GB 155161D GB 985772 A GB985772 A GB 985772A
Authority
GB
United Kingdom
Prior art keywords
cavities
blade
piece
pieces
blades
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
GB155161D
Inventor
Alec George Henstridge
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.)
Bristol Siddeley Engines Ltd
Original Assignee
Bristol Siddeley Engines 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 Bristol Siddeley Engines Ltd filed Critical Bristol Siddeley Engines Ltd
Priority claimed from GB155161A external-priority patent/GB1010964A/en
Publication of GB985772A publication Critical patent/GB985772A/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
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/181—Blades having a closed internal cavity containing a cooling medium, e.g. sodium

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

985,772. Gas turbine blades. BRISTOL SIDDELEY ENGINES Ltd. Jan. 12, 1962 [Jan. 13, 1961], No. 1551/61. Heading F1T. An axial flow gas turbine blade comprises two pieces butted together at faces which extend longitudinally and are transverse to the chordwise direction of the blade, each piece having a series of longitudinally spaced cavities extending into it from its butting face and separated from one another by divisions which tie the side walls of the piece together such that a zig-zag passage is formed within the blade. The blade, Figs. 1, 2, comprises an aerofoil portion 10, a "fir-tree" root portion 11, and a tip shroud 12 and consists of pieces 13, 14 butting together at faces 15, 16. The trailing piece 14 has V-section cavities 19 to 24 and the leading piece 13 cavities 27 to 31. Passages 32, 33, 34 allow the inlet and outlet of cooling fluid. The pieces 13, 14 may be separate or may be joined by brazing. In a modification, Figs. 5, 6 (not shown) the blade comprises three abutting pieces, the intermediate piece having two series of cavities which may be staggered or aligned. The cavities may be wholly or partly filled with a sealed in heat transfer substance such as sodium. The blades may be formed by casting or forging and then machining the cavities by ultrasonic or electrolytic methods, spark erosion, or polishing. Blade dimensions are quoted.
GB155161D 1961-01-13 1961-01-13 Improvements in blades for gas turbines Expired GB985772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB155161A GB1010964A (en) 1960-12-14 1961-01-13 A process of manufacturing a precise aspherical surface

Publications (1)

Publication Number Publication Date
GB985772A true GB985772A (en) 1965-03-10

Family

ID=9723934

Family Applications (1)

Application Number Title Priority Date Filing Date
GB155161D Expired GB985772A (en) 1961-01-13 1961-01-13 Improvements in blades for gas turbines

Country Status (1)

Country Link
GB (1) GB985772A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628885A (en) * 1969-10-01 1971-12-21 Gen Electric Fluid-cooled airfoil
US3630707A (en) * 1969-06-11 1971-12-28 Corning Glass Works Temperature control system for glass-shaping molds
US3738771A (en) * 1970-07-20 1973-06-12 Onera (Off Nat Aerospatiale) Rotor blades of rotary machines, provided with an internal cooling system
US4292010A (en) * 1978-09-16 1981-09-29 Rolls-Royce Limited Cambered blade or vane for a gas turbine engine
DE3109342A1 (en) * 1980-03-19 1981-12-24 General Electric Co., Schenectady, N.Y. METHOD FOR REPAIRING AN AIR-COOLED GAS TURBINE ENGINE BLADE AND SPARE PART PROVIDED THEREFOR
FR2493205A1 (en) * 1980-11-03 1982-05-07 Gen Electric METHOD FOR MANUFACTURING A HOLLOW OBJECT

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630707A (en) * 1969-06-11 1971-12-28 Corning Glass Works Temperature control system for glass-shaping molds
US3628885A (en) * 1969-10-01 1971-12-21 Gen Electric Fluid-cooled airfoil
US3738771A (en) * 1970-07-20 1973-06-12 Onera (Off Nat Aerospatiale) Rotor blades of rotary machines, provided with an internal cooling system
US4292010A (en) * 1978-09-16 1981-09-29 Rolls-Royce Limited Cambered blade or vane for a gas turbine engine
DE3109342A1 (en) * 1980-03-19 1981-12-24 General Electric Co., Schenectady, N.Y. METHOD FOR REPAIRING AN AIR-COOLED GAS TURBINE ENGINE BLADE AND SPARE PART PROVIDED THEREFOR
FR2493205A1 (en) * 1980-11-03 1982-05-07 Gen Electric METHOD FOR MANUFACTURING A HOLLOW OBJECT
DE3139035A1 (en) * 1980-11-03 1982-06-09 General Electric Co., Schenectady, N.Y. "METHOD FOR PRODUCING A HOLLOW ITEM"
US4364160A (en) * 1980-11-03 1982-12-21 General Electric Company Method of fabricating a hollow article

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