GB819433A - Rotor blade and rotor blade assembly for machines such as compressors or turbines - Google Patents

Rotor blade and rotor blade assembly for machines such as compressors or turbines

Info

Publication number
GB819433A
GB819433A GB23611/56A GB2361156A GB819433A GB 819433 A GB819433 A GB 819433A GB 23611/56 A GB23611/56 A GB 23611/56A GB 2361156 A GB2361156 A GB 2361156A GB 819433 A GB819433 A GB 819433A
Authority
GB
United Kingdom
Prior art keywords
blade
locking strip
channel
projection
stop
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
GB23611/56A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB819433A publication Critical patent/GB819433A/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
    • F01D5/323—Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y10T29/49872—Confining elastic part in socket
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49876—Assembling or joining with prestressing of part by snap fit

Landscapes

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

Abstract

819,433. Compressor and turbine rotor blades. McCULLOUGH, A. L., and WILKINSON, M.A. July 31,1956 [Aug. 1, 1955], No. 23611/56. Class 110 (3). [Also in Group XXV] In a turbine or compressor in which blades are mounted by their roots in undercut slots extending more or less axially at the periphery of a rotor disc, means are provided to prevent endwise movement of the blade roots in the slots. In the turbine rotor shown, undercut axial slots 11 are formed in the peripheral flange 12 of the rotor disc 13. Each blade 10 is formed with a correspondingly-shaped root 14 having a stop 15 at one end thereof, the blade stop abutting against one side of the peripheral flange 12 upon assembly. The bottom surface of each slot 11 is formed with a channel 17 so as to receive a blade locking strip 19, one end of the channel 17 being deepened as at 18. The locking strip 19 is flexible and has a shank 19a and projections 20, 22 extending in opposite directions at its ends, the projection 20 also having a tab 21. Upon assembly, a locking strip 19 is inserted in a channel 17 and is deformed. so that one end lies in the deepened portion 18 so that the blade root 14 may be entered into the slot 11 until the blade stop 15 abuts against the side of the rotor flange. The end of the locking strip 19 is then released so that the projection 20 bears against the outer surface of the blade stop 15 whereby the blade is locked in position. A recess 16 is provided in the stop 15 to receive the locking strip. In a second embodiment, Fig. 4, the channel 17<SP>1</SP> is of uniform depth across the bottom of the blade mounting slot and the locking strip is bent so as to form a projection 23 which is received in the channel. The stop 22<SP>1</SP> is of increased depth so as to lie against the side of the rotor flange. The end 22 of the locking strip may alternatively be received in a transverse slot formed at the bottom of the channel 17. A projection may be provided on the locking strip 19 at the end adjacent the projection 20 but extending in the opposite direction thereto so that when the locking strip is deformed, this further projection. engages the side of the rotor ftange and prevents the locking strip sliding out as the blade root is entered into the slot,.
GB23611/56A 1955-08-01 1956-07-31 Rotor blade and rotor blade assembly for machines such as compressors or turbines Expired GB819433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US525643A US2828942A (en) 1955-08-01 1955-08-01 Rotor blade and rotor blade assembly

Publications (1)

Publication Number Publication Date
GB819433A true GB819433A (en) 1959-09-02

Family

ID=24094061

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23611/56A Expired GB819433A (en) 1955-08-01 1956-07-31 Rotor blade and rotor blade assembly for machines such as compressors or turbines

Country Status (2)

Country Link
US (1) US2828942A (en)
GB (1) GB819433A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425621A (en) * 1993-01-14 1995-06-20 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Device for axially securing moving blades and for eliminating rotor unbalances for axial-flow compressors or turbines

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001760A (en) * 1959-08-07 1961-09-26 Gen Motors Corp Turbine blade lock
US3047268A (en) * 1960-03-14 1962-07-31 Stanley L Leavitt Blade retention device
US3231770A (en) * 1962-11-19 1966-01-25 Kdi Corp Self-starting synchronous motor
US3248081A (en) * 1964-12-29 1966-04-26 Gen Electric Axial locating means for airfoils
GB1067630A (en) * 1965-12-29 1967-05-03 Rolls Royce Bladed rotor for a fluid flow machine
DE2606063C2 (en) * 1976-02-16 1978-01-19 Alfred Gutmann Gesellschaft für Maschinenbau, 2000 Hamburg Centrifugal wheel for abrasive systems
US4208170A (en) * 1978-05-18 1980-06-17 General Electric Company Blade retainer
WO2003100220A1 (en) * 2002-05-24 2003-12-04 Abb Turbo Systems Ag Axial securing means for impeller blades
US7806662B2 (en) * 2007-04-12 2010-10-05 Pratt & Whitney Canada Corp. Blade retention system for use in a gas turbine engine
US8061995B2 (en) * 2008-01-10 2011-11-22 General Electric Company Machine component retention
US20120177498A1 (en) * 2011-01-07 2012-07-12 General Electric Company Axial retention device for turbine system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976790A (en) * 1948-10-19 1951-03-22 Blade roots of compressors and turbines or the like
US2641443A (en) * 1951-03-17 1953-06-09 A V Roe Canada Ltd Rotor blade locking

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425621A (en) * 1993-01-14 1995-06-20 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh Device for axially securing moving blades and for eliminating rotor unbalances for axial-flow compressors or turbines

Also Published As

Publication number Publication date
US2828942A (en) 1958-04-01

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