GB778685A - Improvements in or relating to the construction and manufacture of aerofoils and thelike - Google Patents

Improvements in or relating to the construction and manufacture of aerofoils and thelike

Info

Publication number
GB778685A
GB778685A GB3224053A GB3224053A GB778685A GB 778685 A GB778685 A GB 778685A GB 3224053 A GB3224053 A GB 3224053A GB 3224053 A GB3224053 A GB 3224053A GB 778685 A GB778685 A GB 778685A
Authority
GB
United Kingdom
Prior art keywords
mould
fibrous material
layer
resin
moulding
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
GB3224053A
Inventor
John Rees
Raymond Dennis Green
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.)
Bristol Aircraft Ltd
Original Assignee
Bristol Aircraft 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 Bristol Aircraft Ltd filed Critical Bristol Aircraft Ltd
Priority to GB3224053A priority Critical patent/GB778685A/en
Publication of GB778685A publication Critical patent/GB778685A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
    • B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14786—Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C3/00—Wings
    • B64C3/24—Moulded or cast structures

Abstract

778,685. Aerofoils. BRISTOL AIRCRAFT, Ltd. Feb. 16, 1955 [Nov. 20, 1953], No. 32240/53. Class 4. [Also in Group V] A cellular aerofoil or component part thereof consists of a onepiece moulding comprising at least one skin layer 34 with its surface formed to the aerofoil contour, at least one other layer 35 substantially co-extensive with the first and spaced therefrom over at least part of its area, each layer being composed of fibrous material bonded with thermoset resin and/or of metal, and a plurality of spanwise extending webs made of fibrous material bonded with thermoset resin, and presenting with the layers in chordwise section a substantially fully triangulated structure, the triangular cells in which can each be filled without distortion of the structure by a rigid core insertable into or withdrawable from the cell in a spanwise direction. In the all-moving tail plane described, of thin parallelogram crosssection, a further core is inserted part way into the moulding to form a socket with walls 38 for a mounting shaft 30. A further core leaves an aperture for receiving a rib 31 fast to the shaft to take up torque. In the case of a tapered wing, the outermost triangular cells end short of the tip. The layer 35 ends somewhat short in the chordwise direction of layer 34, and the surface is completed by leading and trailing portions 36 of resin bonded fibrous material. Phenolformaldehyde or polyester resins may be used. In manufacture, a two or more part mould is charged with the layers 34 and 35 and with triangular cores wrapped with fibrous material impregnated with uncured or partly cured thermosetting or hot setting resin. Any remaining space is filled with impregnated fibrous material, to a volume greater than that of the mould, so that when the mould parts are together, the charge is compressed. It is then heat cured. Alternatively, the charge may be of less volume than the mould, and after closing the mould, a liquid mixture comprising uncured or partly cured thermosetting resin is injected into the mould to a required moulding pressure. The mould may be raised to the curing temperature immediately before, during or after injection. Specifications 778,681 and 778,683 [Group V] are referred to.
GB3224053A 1953-11-20 1953-11-20 Improvements in or relating to the construction and manufacture of aerofoils and thelike Expired GB778685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3224053A GB778685A (en) 1953-11-20 1953-11-20 Improvements in or relating to the construction and manufacture of aerofoils and thelike

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3224053A GB778685A (en) 1953-11-20 1953-11-20 Improvements in or relating to the construction and manufacture of aerofoils and thelike

Publications (1)

Publication Number Publication Date
GB778685A true GB778685A (en) 1957-07-10

Family

ID=10335511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3224053A Expired GB778685A (en) 1953-11-20 1953-11-20 Improvements in or relating to the construction and manufacture of aerofoils and thelike

Country Status (1)

Country Link
GB (1) GB778685A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943815A (en) * 1954-11-19 1960-07-05 Sud Aviation Aerodynes, more particularly pilotless aerodynes
FR2559423A1 (en) * 1984-02-13 1985-08-16 Gen Electric COMPOSITE HOLLOW BLADE PROFILE ELEMENTS AND THEIR MANUFACTURING METHOD
FR2559422A1 (en) * 1984-02-13 1985-08-16 Gen Electric COMPOSITE HOLLOW BLADE PROFILE ELEMENT WITH CORRUGATED INTERNAL SUPPORT STRUCTURE AND MANUFACTURING METHOD THEREOF
US4693435A (en) * 1984-09-10 1987-09-15 United Technologies Corporation High speed aircraft control surface
EP0292086A1 (en) * 1987-05-21 1988-11-23 Hudson Products Corporation Fan blade for an axial flow fan and method of forming same
FR2656340A1 (en) * 1989-12-22 1991-06-28 Isofran AME TEXTILE, MANUFACTURING METHOD AND COMPOSITE PRODUCT OBTAINED WITH SUCH A TEXTILE SOUL.
GB2254821A (en) * 1991-04-19 1992-10-21 Motor Panels Transfer moulded plastics walled structure ,reinforced by fibrous stuctural members.
WO2012086400A1 (en) * 2010-12-22 2012-06-28 三菱重工業株式会社 Steam turbine stator blade and steam turbine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943815A (en) * 1954-11-19 1960-07-05 Sud Aviation Aerodynes, more particularly pilotless aerodynes
FR2559423A1 (en) * 1984-02-13 1985-08-16 Gen Electric COMPOSITE HOLLOW BLADE PROFILE ELEMENTS AND THEIR MANUFACTURING METHOD
FR2559422A1 (en) * 1984-02-13 1985-08-16 Gen Electric COMPOSITE HOLLOW BLADE PROFILE ELEMENT WITH CORRUGATED INTERNAL SUPPORT STRUCTURE AND MANUFACTURING METHOD THEREOF
GB2154286A (en) * 1984-02-13 1985-09-04 Gen Electric Hollow laminated airfoil
US4693435A (en) * 1984-09-10 1987-09-15 United Technologies Corporation High speed aircraft control surface
EP0292086A1 (en) * 1987-05-21 1988-11-23 Hudson Products Corporation Fan blade for an axial flow fan and method of forming same
FR2656340A1 (en) * 1989-12-22 1991-06-28 Isofran AME TEXTILE, MANUFACTURING METHOD AND COMPOSITE PRODUCT OBTAINED WITH SUCH A TEXTILE SOUL.
EP0436419A1 (en) * 1989-12-22 1991-07-10 Isofran Textile core, method for its manufacture and layered product obtained from such textile core
GB2254821A (en) * 1991-04-19 1992-10-21 Motor Panels Transfer moulded plastics walled structure ,reinforced by fibrous stuctural members.
GB2254821B (en) * 1991-04-19 1995-02-08 Motor Panels Moulded walled structures
WO2012086400A1 (en) * 2010-12-22 2012-06-28 三菱重工業株式会社 Steam turbine stator blade and steam turbine
JP2012132375A (en) * 2010-12-22 2012-07-12 Mitsubishi Heavy Ind Ltd Stator blade of steam turbine and steam turbine
CN103237959A (en) * 2010-12-22 2013-08-07 三菱重工业株式会社 Steam turbine stator blade and steam turbine
CN103237959B (en) * 2010-12-22 2015-04-08 三菱日立电力系统株式会社 Steam turbine stator blade and steam turbine
US9488066B2 (en) 2010-12-22 2016-11-08 Mitsubishi Hitachi Power Systems, Ltd. Turbine vane of steam turbine and steam turbine

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