GB801468A - Improvements in or relating to blades for use in axial-flow rotary bladed machines such as gas turbines - Google Patents

Improvements in or relating to blades for use in axial-flow rotary bladed machines such as gas turbines

Info

Publication number
GB801468A
GB801468A GB10222/56A GB1022256A GB801468A GB 801468 A GB801468 A GB 801468A GB 10222/56 A GB10222/56 A GB 10222/56A GB 1022256 A GB1022256 A GB 1022256A GB 801468 A GB801468 A GB 801468A
Authority
GB
United Kingdom
Prior art keywords
profile
blade
root
cutter
flat
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
GB10222/56A
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.)
Sulzer Escher Wyss AG
Original Assignee
Escher Wyss AG
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 Escher Wyss AG filed Critical Escher Wyss AG
Publication of GB801468A publication Critical patent/GB801468A/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
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
    • 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

Landscapes

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

Abstract

801,468. Copy-milling turbine blades. ESCHER WYSS A.G. April 3, 1956 [March 31, 1955], No. 10222/56. Class 83 (3). [Also in Group XXVI] A blade for use in an axial-flow turbine or compressor comprises a profile portion 1 and a thickened root portion 2, the profile form of the profile portion and of the root portion being the same, at least on one side of the blade. The blade may be formed by using profile cutters which are moved outwardly as they approach the root portion. The surfaces of the blade at both sides may be produced simultaneously and the blade may be rotated during machining of the profile portion so as to produce the desired blade twist. The blade may be formed by a series of cutting operations, each forming only a part of the profile; for example the leading and trailing edge portions may be cut simultaneously and finally the centre portion of the profile. A tracer roller corresponding to portions of the profile already cut may be used during machining of subsequent portions of the profile, and to prevent damage by swarf penetrating between the roller and the finished portion of the profile, a rubber covering may be disposed between the cutter and the roller. If only one blade surface is machined at a time, the blade twist may be provided either by movement of the cutter or by turning the blade support. A complementary member 14 is disposed on at least one side of the blade root 13. The engaging faces of the root 13 and member 14 may be of corrugated form as shown in Fig. 7, the corrugated face of the root being produced by undulatory transverse movement of the profile cutter. The flat-faced blank from which the concave surface 10, Fig. 6, is cut may have a width terminating at 11 so that as the cutter 10<SP>1</SP> is withdrawn to produce the thickened root, it leaves the flat surface 11 to engage a flat complementary member 14.
GB10222/56A 1955-03-31 1956-04-03 Improvements in or relating to blades for use in axial-flow rotary bladed machines such as gas turbines Expired GB801468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE342326X 1955-03-31

Publications (1)

Publication Number Publication Date
GB801468A true GB801468A (en) 1958-09-17

Family

ID=6239014

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10222/56A Expired GB801468A (en) 1955-03-31 1956-04-03 Improvements in or relating to blades for use in axial-flow rotary bladed machines such as gas turbines

Country Status (3)

Country Link
CH (1) CH342326A (en)
FR (1) FR1150739A (en)
GB (1) GB801468A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605355A (en) * 1983-03-31 1986-08-12 Competition Aircraft, Inc. Propeller
WO2005116404A1 (en) * 2004-05-29 2005-12-08 Mtu Aero Engines Gmbh Vane comprising a transition zone

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2985425A1 (en) 2012-01-10 2013-07-12 Sederma Sa NEW USE OF ZERUMBON
CN105252232B (en) * 2015-11-17 2017-10-17 山东大学 A kind of method for processing steam turbine blade blade curved surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605355A (en) * 1983-03-31 1986-08-12 Competition Aircraft, Inc. Propeller
WO2005116404A1 (en) * 2004-05-29 2005-12-08 Mtu Aero Engines Gmbh Vane comprising a transition zone

Also Published As

Publication number Publication date
FR1150739A (en) 1958-01-17
CH342326A (en) 1959-11-15

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