GB885322A - A process of fabricating transpiration cooled turbine blades and the blades producedthereby - Google Patents

A process of fabricating transpiration cooled turbine blades and the blades producedthereby

Info

Publication number
GB885322A
GB885322A GB2006/58A GB200658A GB885322A GB 885322 A GB885322 A GB 885322A GB 2006/58 A GB2006/58 A GB 2006/58A GB 200658 A GB200658 A GB 200658A GB 885322 A GB885322 A GB 885322A
Authority
GB
United Kingdom
Prior art keywords
strut
lands
body portion
ceramic
spaces
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
GB2006/58A
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.)
Federal Mogul Bower Bearings Inc
Original Assignee
Federal Mogul Bower Bearings Inc
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 Federal Mogul Bower Bearings Inc filed Critical Federal Mogul Bower Bearings Inc
Publication of GB885322A publication Critical patent/GB885322A/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
    • F01D5/182—Transpiration cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • 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)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

885,322. Powder metallurgy. FEDERALMOGAL-BOWER BEARINGS Inc. Jan. 21, 1958 [Jan. 31, 1957], No. 2006/58. Class 82(1). [Also in Groups XXII and XXVI] A transpiration-cooled turbine blade comprises a load-carrying metal strut having a body portion and spaced lands which project from at least one face of the body portion, a thin uniformly permeable sintered stainless steel shell being bonded to the outermost surfaces of the lands so that coolant fluid passageways are formed between the sides of the lands, the surface of the body portion of the strut and the permeable shell. The metal strut 9 is shown in Fig. 2A and comprises a body portion 11 and integral spaced lands 13, being formed as a casting of cobalt-base alloy, the spaces between the lands being indicated at 19. An integral root portion 21 is formed at the root end of the strut, openings 25 being formed between the root portion and the strut. The outer faces of the lands 13 are then coated with a pure metal, for example they may be electroplated with nickel. The strut is then inserted in the cavity 33 formed between the die members 27, 29 and the injection header section die 31, and the spaces 19 and the spaces 35a at the leading and trailing edges are then filled with refractory material by pressure injection. The refractory material may be a ceramic composed of magnesium oxide, polyvinyl alcohol and methyl cellulose. After moulding, the ceramic-filled strut is as shown in Figs. 4 and 5, and this is inserted into the cavity formed by the faces 42, 44 of the two parts of a sintering mould 37, Fig. 6. Stainless steel powder such as described in Specification 762,267 in which the particles are each substantially completely spheroidal in shape is then inserted into the space between the ceramic-filled strut and the walls 42, 44 of the mould cavity and the assembly is then placed in a sintering furnace and sintered in a hydrogen atmosphere in two stages, the blade being removed from the mould for the second stage. The ceramic material is finally removed from the cooling fluid passages by mechanical vibration at sonic or supersonic frequencies, the completed blade being shown in Figs. 8 and 9 having a solid stainless steel member 57 welded at the tip of the strut 9, and porous shell 55. Specification 640,457 also is referred to. Reference has been directed by the Comptroller to Specification 619,634.
GB2006/58A 1957-01-31 1958-01-21 A process of fabricating transpiration cooled turbine blades and the blades producedthereby Expired GB885322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US885322XA 1957-01-31 1957-01-31

Publications (1)

Publication Number Publication Date
GB885322A true GB885322A (en) 1961-12-28

Family

ID=22211906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2006/58A Expired GB885322A (en) 1957-01-31 1958-01-21 A process of fabricating transpiration cooled turbine blades and the blades producedthereby

Country Status (1)

Country Link
GB (1) GB885322A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240468A (en) * 1964-12-28 1966-03-15 Curtiss Wright Corp Transpiration cooled blades for turbines, compressors, and the like
EP1707745A2 (en) * 2000-09-05 2006-10-04 Siemens Aktiengesellschaft Rotor blade for a turbomachine and turbomachine
WO2007137939A1 (en) * 2006-05-26 2007-12-06 Schaeffler Kg Clutch release bearing comprising an adjusting ring
CN106965459A (en) * 2013-05-31 2017-07-21 Lm Wp专利控股有限公司 System and method for the manufacture of auxiliary wind turbine blade shell
US10927679B2 (en) 2010-09-21 2021-02-23 8 Rivers Capital, Llc High efficiency power production methods, assemblies, and systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240468A (en) * 1964-12-28 1966-03-15 Curtiss Wright Corp Transpiration cooled blades for turbines, compressors, and the like
EP1707745A2 (en) * 2000-09-05 2006-10-04 Siemens Aktiengesellschaft Rotor blade for a turbomachine and turbomachine
EP1707745A3 (en) * 2000-09-05 2006-10-18 Siemens Aktiengesellschaft Rotor blade for a turbomachine and turbomachine
WO2007137939A1 (en) * 2006-05-26 2007-12-06 Schaeffler Kg Clutch release bearing comprising an adjusting ring
US10927679B2 (en) 2010-09-21 2021-02-23 8 Rivers Capital, Llc High efficiency power production methods, assemblies, and systems
US11459896B2 (en) 2010-09-21 2022-10-04 8 Rivers Capital, Llc High efficiency power production methods, assemblies, and systems
US11859496B2 (en) 2010-09-21 2024-01-02 8 Rivers Capital, Llc High efficiency power production methods, assemblies, and systems
CN106965459A (en) * 2013-05-31 2017-07-21 Lm Wp专利控股有限公司 System and method for the manufacture of auxiliary wind turbine blade shell
CN106965459B (en) * 2013-05-31 2021-01-12 Lm Wp专利控股有限公司 System and method for assisting in the manufacture of a wind turbine blade shell
US11241847B2 (en) * 2013-05-31 2022-02-08 Lm Wp Patent Holding A/S System and method for assisting in the manufacture of a wind turbine blade shell

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