SE506358C2 - Rotor blade for attaching to a hub of a rotor, such as a vane for attaching to a fan hub - Google Patents
Rotor blade for attaching to a hub of a rotor, such as a vane for attaching to a fan hubInfo
- Publication number
- SE506358C2 SE506358C2 SE9601452A SE9601452A SE506358C2 SE 506358 C2 SE506358 C2 SE 506358C2 SE 9601452 A SE9601452 A SE 9601452A SE 9601452 A SE9601452 A SE 9601452A SE 506358 C2 SE506358 C2 SE 506358C2
- Authority
- SE
- Sweden
- Prior art keywords
- rotor blade
- opening
- ring
- hub
- composite material
- Prior art date
Links
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 4
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 4
- 239000003365 glass fiber Substances 0.000 claims description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 14
- 239000004917 carbon fiber Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000012783 reinforcing fiber Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007157 ring contraction reaction Methods 0.000 description 1
- 238000006049 ring expansion reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
- F05D2300/6034—Orientation of fibres, weaving, ply angle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
- Supercharger (AREA)
- Eye Examination Apparatus (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Surgical Instruments (AREA)
- Thermistors And Varistors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Glass Compositions (AREA)
- Transplanting Machines (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Description
'sus 358 2 10 15 20 25 30 35 huvudsak är framställt av ett kompositmaterial av fiber- armerad plast, att rotorbladets fot innefattar en metall- ring med organ för fastsättning av rotorbladet pá navet, vilken ring har en öppning, som har i riktning från rotorbladet ökande tvärsektionsarea, att ett styvt för- stärkningselement är anordnat i ringens öppning och att kompositmaterialet sträcker sig in i ringen, varvid arme- ringsfibrer i rotorbladets fot sträcker sig in i ringens öppning mellan förstärkningselementet och öppningens vägg väsentligen parallellt med denna. 358 2 10 15 20 25 30 35 is mainly made of a composite material of fiber-reinforced plastic, that the foot of the rotor blade comprises a metal ring with means for attaching the rotor blade to the hub, which ring has an opening which has in the direction of increasing cross-sectional area of the rotor blade, that a rigid reinforcing element is arranged in the opening of the ring and that the composite material extends into the ring, reinforcing fibers in the foot of the rotor blade extending into the opening of the ring between the reinforcing element and the opening wall substantially parallel thereto.
Vid en föredragen utföringsform har ringens öppning stympat konisk form.In a preferred embodiment, the opening of the ring has a truncated conical shape.
Förstärkningselementet innehåller lämpligen kol- fibrer och är i ett föredraget utförande bildat av en till en skivformig rulle upprullad kolfibersträng, som under rotorbladets tillverkning i en form är placerad i ringens öppning för att pressa armeringsfibrerna i öpp- ningen i riktning mot öppningens vägg.The reinforcing element suitably contains carbon fibers and is in a preferred embodiment formed by a carbon fiber strand wound into a disc-shaped roll, which during the manufacture of the rotor blade is placed in a mold in the opening of the ring to press the reinforcing fibers in the opening towards the opening wall.
Kompositmaterialets sammansättning av fibrer och plast i rotorbladets fot är företrädesvis så vald, att kompositmaterialet däri har en till metallringen anpassad längdutvidgningskarakteristik_ Kompositmaterialet är lämpligen glasfiberarmerad epoxiplast. Glasfiberarmering- en i rotorbladets fot är vid en föredragen utföringsform kompletterad med en kolfiberarmering med kolfibrer, som sträcker sig väsentligen tvärs glasfibrerna i glasfiber- armeringen i foten.The composition of the composite material of fibers and plastic in the foot of the rotor blade is preferably chosen so that the composite material therein has a longitudinal expansion characteristic adapted to the metal ring. The composite material is suitably glass fiber reinforced epoxy plastic. The glass fiber reinforcement in the foot of the rotor blade is in a preferred embodiment supplemented with a carbon fiber reinforcement with carbon fibers, which extends substantially across the glass fibers in the glass fiber reinforcement in the foot.
Uppfinningen ska nu beskrivas närmare under hänvisning till bifogade ritningar.The invention will now be described in more detail with reference to the accompanying drawings.
Fig 1 visar en fläktskovel enligt föreliggande upp- finning fràn sidan.Fig. 1 shows a fan blade according to the present invention from the side.
Fig 2 visar fläktskoveln uppifrån.Fig. 2 shows the fan blade from above.
Fig 3 visar fläktskoveln i sektion längs linjen III-III 1 fig 1.Fig. 3 shows the fan blade in section along the line III-III in Fig. 1.
Fig 4 motsvarar fig 3 men visar fläktskovelns fot- parti i större skala. 10 15 20 25 30 35 (3 soe ass På ritningarna visas en fläktskovel 1, som ska fäs- tas pá ett nav (icke visat) i en fläkt (icke visad) medelst fyra fästbultar (icke visade), som ska inskruvas i navet eller en pà detta anordnad hållare.Fig. 4 corresponds to Fig. 3 but shows the foot portion of the fan blade on a larger scale. 10 15 20 25 30 35 (3 soe ass The drawings show a fan blade 1, which is to be attached to a hub (not shown) in a fan (not shown) by means of four mounting bolts (not shown), which are to be screwed into the hub or a holder arranged on this.
Skoveln 1 är framställd av ett kompositmaterial av fiberarmerad plast. Vid en föredragen utföringsform är kompositmaterialet glas- och kolfiberarmerad epoxiplast.The paddle 1 is made of a composite material of fiber-reinforced plastic. In a preferred embodiment, the composite material is glass and carbon fiber reinforced epoxy plastic.
Det torde dock inses, att andra fibrer än glas- och kol- fibrer, t ex aramidfibrer, kan utnyttjas som fiber- armering. Det torde också inses, att andra polymerer än epoxiplast kan utnyttjas som matris.It should be understood, however, that fibers other than glass and carbon fibers, such as aramid fibers, can be used as fiber reinforcement. It will also be appreciated that polymers other than epoxy plastics may be used as the matrix.
Vid framställning av skoveln 1 placeras tvà mattor, som var och en består av flera skikt av riktade glasfib- rer, och en mellanliggande plastkärna 2 (fig 4) i en form, varpå en cirkulär ring 3 av metall, t ex stàl, pla- ceras i formen vid dennas ena ände. Ringen 3 har en stym- pat konisk öppning 4 med i riktning ut frán formen ökande tvärsektionsarea. Glasfibrerna vid mattornas närmast ringen 3 belägna ände (vilken i den färdiga skoveln 1 bildar dennas fotände) införes i ringens 3 öppning 4 och pressas ut mot öppningens 4 vägg. Ett "knippe" glasfibrer placeras i det i fig 4 med streckade linjer markerade, toppformiga partiet A mellan de mot öppningens 4 vägg utpressade glasfibrerna i mattorna. En till en skivformig rulle upprullad kolfibersträng, som ska bilda ett styvt förstärkningselement 5 i den färdiga skoveln 1, placeras i ringens 3 öppning 4 utanpå glasfiberknippet för att kvarhàlla glasfibrerna i det i riktning mot öppningens 4 vägg utpressade läget. Formen slutes, varpá epoxiplast injiceras däri för att bilda skoveln 1.In the manufacture of the vane 1, two mats, each consisting of several layers of directional glass fibers, and an intermediate plastic core 2 (Fig. 4) are placed in a mold, whereupon a circular ring 3 of metal, e.g. ceras in the mold at one end thereof. The ring 3 has a truncated conical opening 4 with a cross-sectional area increasing in the direction out of the mold. The glass fibers at the end of the mats closest to the ring 3 (which in the finished vane 1 forms its foot end) are inserted into the opening 4 of the ring 3 and pressed out against the wall of the opening 4. A "bundle" of glass fibers is placed in the top-shaped portion A marked in broken lines in Fig. 4 between the glass fibers pressed out against the wall of the opening 4 in the mats. A carbon fiber strand wound into a disc-shaped roll, which is to form a rigid reinforcing element 5 in the finished vane 1, is placed in the opening 4 of the ring 3 on top of the fiberglass bundle to retain the glass fibers in the position extruded in the direction of the opening 4. The mold is closed, whereupon epoxy plastic is injected therein to form the paddle 1.
Den färdiga skoveln 1 består således av ett kompo- sitmaterial 6 (inklusive området A) av glasfiberarmerad epoxiplast och med en kärna 2 av plast och ett förstärk- ningselement 5 i form av en kolfiber-epoxiplastkomposit.The finished paddle 1 thus consists of a composite material 6 (including the area A) of glass fiber reinforced epoxy plastic and with a core 2 of plastic and a reinforcing element 5 in the form of a carbon fiber epoxy plastic composite.
Skovelns 1 fot utgöres av metallringen 3, förstärk- ningselementet 5 och den i ringens 3 öppning 4 belägna delen av kompositmaterialet 6, där glasfibrerna sträcker 3506 ass 4 10 15 20 25 sig konformigt utmed öppningens 4 vägg mellan denna och förstärkningselementet 5, vilket förhindrar att glasfib- rerna i ringen 3 vid stora pákänningar på skoveln 1 pres- sas in mot ringens centrum och att skovelkroppen därvid drages ut ur ringen 3.The foot of the vane 1 consists of the metal ring 3, the reinforcing element 5 and the part of the composite material 6 located in the opening 4 of the ring 3, where the glass fibers extend conformally along the wall of the opening 4 between it and the reinforcing element 5, which prevents the glass fibers in the ring 3 at high stresses on the blade 1 are pressed towards the center of the ring and that the blade body is thereby pulled out of the ring 3.
Ringen 3 har ett bulthål 7 för varje fästbult. Såsom nämnts ovan, fästes skoveln l pà ett nav med hjälp av fästbultarna, vilka införes i hålen 7 i ringen 3 och in- skruvas i navet eller en på detta anordnad hållare. Den ovan beskrivna fläktskoveln l är lätt i jämförelse med tidigare utnyttjade skovlar av metall, och den har dess- utom visat sig klara höga fläktvarvtal utan att dess fot brister vid bultförbandet.The ring 3 has a bolt hole 7 for each mounting bolt. As mentioned above, the vane 1 is fastened to a hub by means of the fastening bolts, which are inserted into the holes 7 in the ring 3 and screwed into the hub or a holder arranged thereon. The fan blade 1 described above is light in comparison with previously used metal blades, and it has also been found to withstand high fan speeds without its foot breaking at the bolted joint.
Kompositmaterialets 6 sammansättning av fibrer och plast i skovelfoten är så vald, att kompositmaterialet däri har en till metallringen 3 anpassad längdutvidg- ningskarakteristik för att verkningarna av ringens ut- vidgning och sammandragning under olika temperaturförhàl- landen ska reduceras så mycket som möjligt, dvs så att kompositmaterialet förmår följa ringen 3 i dess tempera- turberoende rörelser. För detta ändamål är glasfiberarme- ringen i skovelfoten vid en föredragen utföringsform av fläktskoveln l kompletterad med en kolfiberarmering med kolfibrer, som vid skovelns tillverkning i formen place- ras så bland glasfibrerna i området för ringen 3, att de i den färdiga skoveln 1 sträcker sig väsentligen tvärs dessa glasfibrer i kompositmaterialet.The composition of the composite material 6 of fibers and plastic in the paddle foot is chosen so that the composite material therein has a longitudinal expansion characteristic adapted to the metal ring 3 so that the effects of ring expansion and contraction under different temperature conditions are reduced as much as possible, ie the composite material is able to follow the ring 3 in its temperature-dependent movements. For this purpose, in a preferred embodiment of the fan vane 1, the glass fiber reinforcement in the vane foot is supplemented with a carbon fiber reinforcement with carbon fibers, which during the manufacture of the vane is placed in the mold so that the fiberglass in the area of the ring 3 extends in the finished vane 1. substantially across these glass fibers in the composite material.
Claims (7)
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9601452A SE506358C2 (en) | 1996-04-17 | 1996-04-17 | Rotor blade for attaching to a hub of a rotor, such as a vane for attaching to a fan hub |
| PCT/SE1997/000591 WO1997039243A1 (en) | 1996-04-17 | 1997-04-10 | Vane element |
| PL97329393A PL182614B1 (en) | 1996-04-17 | 1997-04-10 | Vane |
| CZ19983306A CZ287302B6 (en) | 1996-04-17 | 1997-04-10 | Rotor blade |
| HU9901657A HU221148B1 (en) | 1996-04-17 | 1997-04-10 | Vane element |
| AU24185/97A AU2418597A (en) | 1996-04-17 | 1997-04-10 | Vane element |
| EP97919846A EP0894197B1 (en) | 1996-04-17 | 1997-04-10 | Vane element |
| RU98120520/06A RU2172434C2 (en) | 1996-04-17 | 1997-04-10 | Blade |
| SK1421-98A SK142198A3 (en) | 1996-04-17 | 1997-04-10 | Vane element |
| AT97919846T ATE229621T1 (en) | 1996-04-17 | 1997-04-10 | WING ELEMENT |
| EE9800332A EE9800332A (en) | 1996-04-17 | 1997-04-10 | Rotors good |
| DE69717802T DE69717802D1 (en) | 1996-04-17 | 1997-04-10 | WING ELEMENT |
| TR1998/02076T TR199802076T2 (en) | 1996-04-17 | 1997-04-10 | Wing element. |
| BG102834A BG62899B1 (en) | 1996-04-17 | 1998-10-12 | Fan blade |
| NO984857A NO984857L (en) | 1996-04-17 | 1998-10-16 | Rotor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9601452A SE506358C2 (en) | 1996-04-17 | 1996-04-17 | Rotor blade for attaching to a hub of a rotor, such as a vane for attaching to a fan hub |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9601452D0 SE9601452D0 (en) | 1996-04-17 |
| SE9601452L SE9601452L (en) | 1997-10-18 |
| SE506358C2 true SE506358C2 (en) | 1997-12-08 |
Family
ID=20402223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9601452A SE506358C2 (en) | 1996-04-17 | 1996-04-17 | Rotor blade for attaching to a hub of a rotor, such as a vane for attaching to a fan hub |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0894197B1 (en) |
| AT (1) | ATE229621T1 (en) |
| AU (1) | AU2418597A (en) |
| BG (1) | BG62899B1 (en) |
| CZ (1) | CZ287302B6 (en) |
| DE (1) | DE69717802D1 (en) |
| EE (1) | EE9800332A (en) |
| HU (1) | HU221148B1 (en) |
| NO (1) | NO984857L (en) |
| PL (1) | PL182614B1 (en) |
| RU (1) | RU2172434C2 (en) |
| SE (1) | SE506358C2 (en) |
| SK (1) | SK142198A3 (en) |
| TR (1) | TR199802076T2 (en) |
| WO (1) | WO1997039243A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9895840B2 (en) * | 2014-05-15 | 2018-02-20 | The Boeing Company | Thermoformed cascades for jet engine thrust reversers |
| DE102014215089A1 (en) * | 2014-07-31 | 2016-02-04 | Ksb Aktiengesellschaft | Flow guiding component |
| RU2697001C1 (en) * | 2015-10-16 | 2019-08-08 | Р.Е.М. Холдинг С.Р.Л. | Connecting element for connection of blade to hub of industrial axial fan and blade device containing said connecting element |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3565547A (en) * | 1969-02-24 | 1971-02-23 | Carrier Corp | Turbomachine rotor construction |
| FR2427494A1 (en) * | 1978-06-01 | 1979-12-28 | Neu Sa | Large dia. fan blade - has lengthwise member with plastics honeycomb cores forming leading and trailing edges |
| FR2685732B1 (en) * | 1991-12-31 | 1994-02-25 | Snecma | BLADE OF TURBOMACHINE IN COMPOSITE MATERIAL. |
| BR9300312A (en) * | 1993-02-02 | 1993-07-27 | Alpina Equipamentos Ind Ltda | IMPROVEMENT IN FIBER REINFORCED PLASTIC PAS |
-
1996
- 1996-04-17 SE SE9601452A patent/SE506358C2/en not_active IP Right Cessation
-
1997
- 1997-04-10 DE DE69717802T patent/DE69717802D1/en not_active Expired - Lifetime
- 1997-04-10 RU RU98120520/06A patent/RU2172434C2/en not_active IP Right Cessation
- 1997-04-10 TR TR1998/02076T patent/TR199802076T2/en unknown
- 1997-04-10 AT AT97919846T patent/ATE229621T1/en not_active IP Right Cessation
- 1997-04-10 EP EP97919846A patent/EP0894197B1/en not_active Expired - Lifetime
- 1997-04-10 PL PL97329393A patent/PL182614B1/en not_active IP Right Cessation
- 1997-04-10 SK SK1421-98A patent/SK142198A3/en unknown
- 1997-04-10 CZ CZ19983306A patent/CZ287302B6/en not_active IP Right Cessation
- 1997-04-10 HU HU9901657A patent/HU221148B1/en not_active IP Right Cessation
- 1997-04-10 WO PCT/SE1997/000591 patent/WO1997039243A1/en active IP Right Grant
- 1997-04-10 AU AU24185/97A patent/AU2418597A/en not_active Abandoned
- 1997-04-10 EE EE9800332A patent/EE9800332A/en unknown
-
1998
- 1998-10-12 BG BG102834A patent/BG62899B1/en unknown
- 1998-10-16 NO NO984857A patent/NO984857L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9601452D0 (en) | 1996-04-17 |
| CZ287302B6 (en) | 2000-10-11 |
| EP0894197A1 (en) | 1999-02-03 |
| RU2172434C2 (en) | 2001-08-20 |
| ATE229621T1 (en) | 2002-12-15 |
| TR199802076T2 (en) | 1998-12-21 |
| CZ330698A3 (en) | 1999-11-17 |
| PL329393A1 (en) | 1999-03-29 |
| BG102834A (en) | 1999-04-30 |
| DE69717802D1 (en) | 2003-01-23 |
| EP0894197B1 (en) | 2002-12-11 |
| BG62899B1 (en) | 2000-10-31 |
| HU221148B1 (en) | 2002-08-28 |
| SE9601452L (en) | 1997-10-18 |
| AU2418597A (en) | 1997-11-07 |
| SK142198A3 (en) | 1999-06-11 |
| HUP9901657A3 (en) | 2000-02-28 |
| EE9800332A (en) | 1999-04-15 |
| WO1997039243A1 (en) | 1997-10-23 |
| HUP9901657A2 (en) | 1999-08-30 |
| NO984857L (en) | 1998-12-11 |
| NO984857D0 (en) | 1998-10-16 |
| PL182614B1 (en) | 2002-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |