GB761380A - Blade mounting for compressors, turbines and like fluid flow machines - Google Patents

Blade mounting for compressors, turbines and like fluid flow machines

Info

Publication number
GB761380A
GB761380A GB32901/53A GB3290153A GB761380A GB 761380 A GB761380 A GB 761380A GB 32901/53 A GB32901/53 A GB 32901/53A GB 3290153 A GB3290153 A GB 3290153A GB 761380 A GB761380 A GB 761380A
Authority
GB
United Kingdom
Prior art keywords
discs
rotor
blade
blades
retaining
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
GB32901/53A
Inventor
Sydney William Henry Perry
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.)
Power Jets Research and Development Ltd
Original Assignee
Power Jets Research and Development 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 Power Jets Research and Development Ltd filed Critical Power Jets Research and Development Ltd
Priority to GB32901/53A priority Critical patent/GB761380A/en
Publication of GB761380A publication Critical patent/GB761380A/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
    • F01D5/32—Locking, e.g. by final locking blades or keys
    • F01D5/326—Locking of axial insertion type blades by other means
    • 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
    • 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
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
    • 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
    • F01D5/3084—Fixing blades to rotors; Blade roots ; Blade spacers the blades being made of ceramics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

761,380. Bladed turbine and compressor rotors. POWER JETS (RESEARCH & DE. VELOPMENT), Ltd. Oct. 22, 1954 [Nov. 26, 1953], No. 32901/53. Class 110 (3). A bladed rotor for a turbine or compressor comprises a plurality of coaxial, axially-spaced thin discs 1a, 1b ... and a plurality of rotor blades mounted on the periphery thereof, each blade 6 having an enlarged foot portion 6c and being secured to the rotor by a pair of retaining-pieces 20, one engaging with each circumferentially-facing side of the blade foot and being secured to all the thin discs. The blades are made of notch-sensitive material such as refractory ceramic. The sheet metal rotor discs la, 1b ... are clamped between end rings 2, 3 by means of bolts 4 and the discs are spaced apart by means of washers 5. The enlarged foot portion 6c of each blade is of dovetail shape, has a platform 6b and rests on the periphery of the discs 1a, 1b .... Each retaining piece 20 has side surfaces 20a corresponding to the side surfaces 6d of the dovetail foot portions 6c and has a fir-tree type root 20b by which it is retained in corresponding slots in the rotor discs. The discs are provided with apertures 22a, 22b ... through which cooling air is supplied, for example from the compressor in the case of a gas turbine engine, the air passing through the bores 20c in the retaining pieces 20 to the spaces 26, finally escaping through the gaps between the blade platforms. The refractory ceramic material of the blades may consist of, for example, sintered oxides, silicides, carbides or borides of metals such as beryllium, aluminium or titanium, or sintered metalceramic mixtures.
GB32901/53A 1953-11-26 1953-11-26 Blade mounting for compressors, turbines and like fluid flow machines Expired GB761380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32901/53A GB761380A (en) 1953-11-26 1953-11-26 Blade mounting for compressors, turbines and like fluid flow machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32901/53A GB761380A (en) 1953-11-26 1953-11-26 Blade mounting for compressors, turbines and like fluid flow machines

Publications (1)

Publication Number Publication Date
GB761380A true GB761380A (en) 1956-11-14

Family

ID=10345716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32901/53A Expired GB761380A (en) 1953-11-26 1953-11-26 Blade mounting for compressors, turbines and like fluid flow machines

Country Status (1)

Country Link
GB (1) GB761380A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357984A1 (en) * 1988-08-31 1990-03-14 Westinghouse Electric Corporation Gas turbine with film cooling of turbine vane shrouds
WO2018075163A1 (en) * 2016-10-17 2018-04-26 General Electric Company Propeller assembly and method of assembling
WO2018075217A1 (en) * 2016-10-17 2018-04-26 General Electric Company System for composite marine propellers
WO2018075166A1 (en) * 2016-10-17 2018-04-26 General Electric Company Apparatus and system for marine propeller blade dovetail stress reduction
US10458242B2 (en) * 2016-10-25 2019-10-29 Pratt & Whitney Canada Corp. Rotor disc with passages

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0357984A1 (en) * 1988-08-31 1990-03-14 Westinghouse Electric Corporation Gas turbine with film cooling of turbine vane shrouds
WO2018075163A1 (en) * 2016-10-17 2018-04-26 General Electric Company Propeller assembly and method of assembling
WO2018075217A1 (en) * 2016-10-17 2018-04-26 General Electric Company System for composite marine propellers
WO2018075166A1 (en) * 2016-10-17 2018-04-26 General Electric Company Apparatus and system for marine propeller blade dovetail stress reduction
US10486785B2 (en) 2016-10-17 2019-11-26 General Electric Company Propeller assembly and method of assembling
US10689073B2 (en) 2016-10-17 2020-06-23 General Electric Company Apparatus and system for marine propeller blade dovetail stress reduction
US10458242B2 (en) * 2016-10-25 2019-10-29 Pratt & Whitney Canada Corp. Rotor disc with passages

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