GB1252544A - - Google Patents

Info

Publication number
GB1252544A
GB1252544A GB1252544DA GB1252544A GB 1252544 A GB1252544 A GB 1252544A GB 1252544D A GB1252544D A GB 1252544DA GB 1252544 A GB1252544 A GB 1252544A
Authority
GB
United Kingdom
Prior art keywords
ring
arms
mounting
blade
apertures
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
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 filed Critical
Publication of GB1252544A publication Critical patent/GB1252544A/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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of 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
    • 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
    • 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
    • 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
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins

Landscapes

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

Abstract

1,252,544. Turbine or compressor rotors. GENERAL MOTORS CORP. April 9, 1970 [May 12, 1969], No.16970/70. Heading FiT. A turbine or compressor rotor comprises at least one mounting ring 10 to which blades 18 are secured by means of arms 21, a fibrous reinforcing ring 34 and a spacer ring 35 being disposed between the arms 21 and surrounding the mounting ring 10. The reinforcing ring 34 is made from wound fibres of carbon, boron, sapphire, beryllium or tungsten bonded by a metal matrix or an epoxy resin and is formed in three sections each of which occupies the space between two adjacent arms 21. The spacer ring 35 may be similarly formed in three sections or may be a one piece member having apertures for the blade mounting arms 21. Ring 35 is made of thin steel having axial corrugations to increase radial resilience and may be segmental with the segments cemented or brazed to the mounting ring 10. The latter comprises a central portion 23 having apertures 27 for the blade arms 21, and radial and axial flanges 25, 26. Alternatively ring 10 may be cylindrical or frusto-conical without flanges. The blade arms 21 are secured within apertures 27 by semi-circular pins 30 passing through holes 29 in flanges 25 and through circular holes 33 in the arms, there being freedom for slight pivotal movement of the blades about pins 30. The resilience of spacer ring 35 enables mounting ring 10 to expand to some degree relative to reinforcing ring 34. Several mounting rings 10 may be clamped together to form a multistage rotor by a tie bolt (15), Fig. 1 (not shown), passing through endplates (11, 13). Alternatively each mounting ring may carry several blade rows.
GB1252544D 1969-05-12 1970-04-09 Expired GB1252544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82360869A 1969-05-12 1969-05-12

Publications (1)

Publication Number Publication Date
GB1252544A true GB1252544A (en) 1971-11-03

Family

ID=25239222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252544D Expired GB1252544A (en) 1969-05-12 1970-04-09

Country Status (2)

Country Link
US (1) US3554668A (en)
GB (1) GB1252544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7811062B1 (en) 1997-06-03 2010-10-12 Rolls-Royce Plc Fiber reinforced metal rotor

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610772A (en) * 1970-05-04 1971-10-05 Gen Motors Corp Bladed rotor
FR2143561B1 (en) * 1971-06-29 1974-03-08 Snecma
US3765796A (en) * 1972-05-01 1973-10-16 United Aircraft Corp Filament reinforced rotor assembly
US3907960A (en) * 1972-11-01 1975-09-23 United Technologies Corp Method for producing a substantially voidless filament reinforced resin matrix composite
FR2238527B1 (en) * 1973-07-25 1978-02-10 Passavant Werke
US4135849A (en) * 1977-01-21 1979-01-23 Westinghouse Electric Corp. Pinned root turbine blade providing maximum friction damping
FR2448626A1 (en) * 1979-02-08 1980-09-05 Snecma IMPROVEMENT IN ROTORS OF ROTATING MACHINES
DE2915286C2 (en) * 1979-04-14 1987-04-09 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Impeller for axial flow turbomachines
DE2915201C2 (en) * 1979-04-14 1986-02-27 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Impeller for axial flow machines, in particular compressors
US4626169A (en) * 1983-12-13 1986-12-02 United Technologies Corporation Seal means for a blade attachment slot of a rotor assembly
US4919594A (en) * 1987-05-15 1990-04-24 Allied-Signal Inc. Composite member, unitary rotor member including same, and method of making
US4867644A (en) * 1987-05-15 1989-09-19 Allied-Signal Inc. Composite member, unitary rotor member including same, and method of making
US5102302A (en) * 1988-06-02 1992-04-07 General Electric Company Fan blade mount
US5165856A (en) * 1988-06-02 1992-11-24 General Electric Company Fan blade mount
US5102300A (en) * 1988-10-07 1992-04-07 United Technologies Corporation Pinned airfoil propeller assembly
FR2679599A1 (en) * 1991-07-24 1993-01-29 Snecma IMPROVEMENT IN BLADES OF TURBOMACHINES.
US5660526A (en) * 1995-06-05 1997-08-26 Allison Engine Company, Inc. Gas turbine rotor with remote support rings
US6422820B1 (en) * 2000-06-30 2002-07-23 General Electric Company Corner tang fan blade
FR2925015B1 (en) * 2007-12-14 2010-06-04 Eurocopter France ROTOR BLADE OF GIRAVION, ROTOR OF GIRAVION PROVIDED WITH SAID BLADE, AND METHOD OF MANUFACTURING THE BLADE
DE102009013348A1 (en) * 2009-03-16 2010-09-23 Man Turbo Ag Device and method for connecting a blade to a rotor shaft of a turbomachine
IT1394295B1 (en) 2009-05-08 2012-06-06 Nuovo Pignone Spa CENTRIFUGAL IMPELLER OF THE CLOSED TYPE FOR TURBOMACCHINE, COMPONENT FOR SUCH A IMPELLER, TURBOMACCHINA PROVIDED WITH THAT IMPELLER AND METHOD OF REALIZING SUCH A IMPELLER
IT1397058B1 (en) 2009-11-23 2012-12-28 Nuovo Pignone Spa CENTRIFUGAL IMPELLER MOLD, MOLD INSERTS AND METHOD TO BUILD A CENTRIFUGAL IMPELLER
IT1397057B1 (en) 2009-11-23 2012-12-28 Nuovo Pignone Spa CENTRIFUGAL AND TURBOMACHINE IMPELLER
JP5689607B2 (en) * 2010-03-17 2015-03-25 東京電力株式会社 Axial flow compressor
FR2961847B1 (en) * 2010-06-25 2012-08-17 Snecma AUBES MOBILE WHEEL IN COMPOSITE MATERIAL FOR A TURBINE GAS TURBINE ENGINE WITH A WAVEBASE / TIGHTENING DISC
ITCO20110064A1 (en) 2011-12-14 2013-06-15 Nuovo Pignone Spa ROTARY MACHINE INCLUDING A ROTOR WITH A COMPOSITE IMPELLER AND A METAL SHAFT
US9546551B2 (en) * 2013-09-17 2017-01-17 General Electric Company Repaired turbine rotor wheel dovetail and related method
EP3058180B1 (en) * 2013-10-11 2018-12-12 United Technologies Corporation Fan rotor with integrated platform attachment
ITCO20130067A1 (en) 2013-12-17 2015-06-18 Nuovo Pignone Srl IMPELLER WITH PROTECTION ELEMENTS AND CENTRIFUGAL COMPRESSOR
US9777593B2 (en) 2015-02-23 2017-10-03 General Electric Company Hybrid metal and composite spool for rotating machinery
US11092020B2 (en) 2018-10-18 2021-08-17 Raytheon Technologies Corporation Rotor assembly for gas turbine engines
EP3998408A1 (en) * 2021-02-26 2022-05-18 Lilium eAircraft GmbH Rotor assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7811062B1 (en) 1997-06-03 2010-10-12 Rolls-Royce Plc Fiber reinforced metal rotor

Also Published As

Publication number Publication date
US3554668A (en) 1971-01-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees