CN115163555B - Carbon fiber blade used at low temperature - Google Patents
Carbon fiber blade used at low temperature Download PDFInfo
- Publication number
- CN115163555B CN115163555B CN202210842369.1A CN202210842369A CN115163555B CN 115163555 B CN115163555 B CN 115163555B CN 202210842369 A CN202210842369 A CN 202210842369A CN 115163555 B CN115163555 B CN 115163555B
- Authority
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- China
- Prior art keywords
- blade
- carbon fiber
- carbon
- transition section
- blade body
- 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.)
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Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 99
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 99
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052751 metal Inorganic materials 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 61
- 230000007704 transition Effects 0.000 claims abstract description 46
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 239000006260 foam Substances 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims description 20
- 239000011208 reinforced composite material Substances 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 229920007790 polymethacrylimide foam Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to the technical field of rotor blades, and particularly relates to a carbon fiber blade used at low temperature, which sequentially comprises a carbon beam and a carbon fiber skin from inside to outside, wherein the carbon beam comprises a sheet part, a transition part and a columnar part which are sequentially arranged, the sheet part is positioned at a blade body of the carbon fiber blade, the transition part and the columnar part are positioned at a blade handle of the carbon fiber blade, blade body foam edges are arranged at two sides of the sheet part, and the blade body foam edges are also positioned in the carbon fiber skin; the rear end of the columnar part is buried with a metal mandrel, a transition section is arranged in the carbon beam, and the transition section is connected with one end, close to the blade body, of the metal mandrel. The beneficial effects are that: the carbon fiber blade used at low temperature solves the problem of safe and stable operation of the compressor blade at low temperature environment temperature, and particularly considers the matching problem of the carbon fiber composite material and the metal piece at a large temperature span; the carbon fiber blade has light weight, and reduces the energy consumption during the operation of the compressor.
Description
Technical Field
The invention belongs to the technical field of rotor blades, and particularly relates to a carbon fiber blade used at low temperature.
Background
Large compressors require development of rotor blades that operate normally within the temperature range of 90K-323K (-183.15-49.85 ℃). The general metal blade has the characteristics of high density, heavy weight and high energy consumption in the operation process, and the metal blade is difficult to meet the requirements of high strength, low-temperature toughness and the like under the ultralow temperature condition, and the carbon fiber reinforced composite material has the characteristics of light weight, small thermal deformation and high strength and toughness under the low temperature, and is suitable for manufacturing the blade of the large-scale low-temperature compressor.
The blade products of the compressors on the market at present are metal, heavy and high in energy consumption in the running process. The density of the metal steel is 7900kg/m3, and the density of the carbon fiber composite material is 1650kg/m3, so that the carbon fiber composite material blade is developed, and the weight of the product is greatly reduced. The blade needs to be used in a wide temperature range of 90K to 323K, so that the influence of temperature difference on connection between different materials needs to be considered.
Disclosure of Invention
The invention provides a carbon fiber blade used at a low temperature, which aims to solve the problems that a metal blade in the prior art is heavy in weight, high in energy consumption in the operation process and difficult to meet the requirements of higher strength and toughness at the low temperature.
In order to solve the technical problems, the invention adopts the following technical scheme that the carbon fiber blade used at low temperature sequentially comprises a carbon beam and a carbon fiber skin from inside to outside, wherein the carbon beam comprises a sheet part, a transition part and a columnar part which are sequentially arranged, the sheet part is positioned at a blade body of the carbon fiber blade, the transition part and the columnar part are positioned at a blade handle of the carbon fiber blade, blade body foam edges are arranged at two sides of the sheet part, and the blade body foam edges are also positioned in the carbon fiber skin; the rear end of the columnar part is buried with a metal mandrel, a transition section is arranged in the carbon beam, and the transition section is connected with one end, close to the blade body, of the metal mandrel.
Preferably, the two sides of the sheet-shaped part are buried with a plurality of connecting pieces, one end of the connecting piece, which is far away from the sheet-shaped part, is positioned in the blade body foam edge, and the connecting piece is provided with a plurality of barbs for hooking the blade body foam edge. The blade body part is partially filled with the blade body foam edge for reducing the weight, and meanwhile, the blade body foam edge plays an internal supporting role in the process of blade mould pressing manufacture; due to the arrangement of the connecting piece, the arrangement of the blade body foam edge is firmer, the blade mould pressing manufacture is facilitated, and the integrity and the structural reliability of the carbon fiber blade are improved.
Preferably, the metal mandrel is dumbbell-shaped, and the middle part of the metal mandrel is smoothly transited to the two ends of the metal mandrel; the cross sections of the end parts of the metal core shafts are polygonal. The metal core shaft is effectively prevented from generating relative axial and angular displacement in the carbon beam, and the installation accuracy of the carbon fiber blade is improved.
Preferably, one end of the transition section is spherical, the other end of the transition section is conical, one end of the metal mandrel is recessed inwards, the spherical end of the transition section is located in the recess of the metal mandrel, and the conical end of the transition section is contracted away from the metal mandrel. The transition section forms flexible transition between the metal core shaft and the carbon beam, and stress concentration caused by overlarge rigidity gradient at the transition section is prevented.
Preferably, the material of the transition section is made of crushed carbon fiber and low-temperature resin. Improving the function of flexible connection of the transition section.
Preferably, the carbon beam and the carbon fiber skin are made of carbon fiber reinforced composite materials; the blade body foam edge is made of PMI foam; the metal core shaft is made of titanium alloy. The whole blade is made of carbon fiber composite material, the blade body part is partially filled with PMI foam for reducing weight, and a titanium alloy metal mandrel is embedded in the carbon beam, so that the connection reliability of the carbon fiber blade and the compressor hub is ensured.
Further, a carbon fiber winding layer is arranged outside the carbon fiber skin at the petiole. Further increase the integrity of the petiole and improve the connection strength.
Further, the carbon fiber winding layer comprises a first winding layer and a second winding layer which are sequentially distributed along the axial direction of the blade handle, an anti-torsion block is arranged between the first winding layer and the second winding layer, the blade handle sequentially penetrates through an outer hub ring and an inner hub ring of the compressor, the rear end of the blade handle is fixedly connected with the metal mandrel through a connecting screw and is provided with a locking piece, and the inner hub ring is positioned between the anti-torsion block and the locking piece; the locking piece and the hub inner ring, and the anti-torsion block and the hub inner ring are respectively provided with a gasket, and the gasket is also arranged between the blade handle and the hub outer ring. The problem that a threaded hole cannot be formed in a composite structural member and the threaded locking is carried out is effectively solved.
The beneficial effects are that: the carbon fiber blade used at low temperature is made of the carbon fiber reinforced composite material, so that the weight of the carbon fiber blade is greatly reduced; the part of the blade body is partially filled with the blade body foam edge for reducing the weight; the carbon beam bears pneumatic bending moment, torque and centrifugal force when the carbon fiber blade works; the carbon fiber skin ensures the pneumatic appearance of the whole blade; the reliability of the connection between the carbon fiber blade and the compressor hub is ensured by the metal mandrel, the metal mandrel is dumbbell-shaped, and the cross section of the end part of the metal mandrel is polygonal, so that the metal mandrel is prevented from generating relative axial and angular displacement in the carbon beam, and the installation precision of the carbon fiber blade is improved; the transition section forms flexible transition between the metal core shaft and the carbon beam, so that stress concentration caused by overlarge rigidity gradient at the transition section is prevented; the anti-twisting block ensures the assembly relation between the carbon fiber blade and the compressor hub, and effectively prevents the circumferential twisting of the carbon fiber blade; the carbon fiber blade used at low temperature solves the problem of safe and stable operation of the compressor blade at low temperature environment temperature, and particularly considers the matching problem of the carbon fiber composite material and the metal piece at a large temperature span; the carbon fiber blade used at low temperature can reduce the energy consumption of the compressor during operation, can be popularized to various parts in the fields of machinery, ships, aviation, aerospace and the like, and has wide application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a carbon fiber blade used at low temperature according to the present invention;
FIG. 2 is an exploded schematic view of a carbon fiber blade used at low temperatures according to the present invention;
FIG. 3 is a schematic partial cross-sectional view of a carbon fiber blade for use at low temperatures in accordance with the present invention;
FIG. 4 is a schematic perspective view of a metal mandrel of a carbon fiber blade used at low temperature according to the present invention;
FIG. 5 is a schematic perspective view of a transition section of a carbon fiber blade used at low temperatures according to the present invention;
FIG. 6 is a schematic partial cross-sectional view of a blade portion and a blade body foam edge of a carbon fiber blade for use at low temperatures in accordance with the present invention;
FIG. 7 is a schematic perspective view of an assembly of a carbon fiber blade and hub for use at low temperatures in accordance with the present invention;
FIG. 8 is a schematic partial cross-sectional view of a carbon fiber blade and hub assembly for use at low temperatures in accordance with the present invention;
in the figure: 1. blade body, 2, blade handle, 3, carbon beam, 3-1, sheet part, 3-2, transition part, 3-3, column part, 4, carbon fiber skin, 5, blade body foam edge, 6, metal core shaft, 7, transition section, 8, connecting piece, 8-1, barb, 9, carbon fiber winding layer, 9-1, first winding layer, 9-2, second winding layer, 10, anti-torsion block, 11, connecting screw, 12, retaining member, 13, gasket, 14, hub outer ring, 15, hub inner ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 to 8, a carbon fiber blade used at a low temperature, as shown in fig. 1, comprises a blade body 1 and a blade stem 2, hereinafter for convenience of description, the direction of the blade body 1 close to the blade is defined as front, the direction of the blade body 1 far away from the blade is defined as rear, and the direction of the central axis of the blade stem 2 is defined as outside, as shown in fig. 2, the carbon fiber blade sequentially comprises a carbon beam 3 and a carbon fiber skin 4 from inside to outside, the carbon beam 3 comprises a sheet-shaped part 3-1, a transition part 3-2 and a columnar part 3-3 which are sequentially arranged, the sheet-shaped part 3-1 is positioned at the blade body 1 of the carbon fiber blade, the transition part 3-2 and the columnar part 3-3 are positioned at the blade stem 2 of the carbon fiber blade, both sides of the sheet-1 are provided with blade body foam edges 5, and the blade body foam edges 5 are also positioned in the carbon fiber skin 4; in order to ensure the reliability of the connection between the carbon fiber blade and the compressor hub, as shown in fig. 3-5, a metal mandrel 6 is embedded at the rear end of the columnar part 3-3, and in order to effectively prevent the metal mandrel 6 from generating relative axial and angular displacement in the carbon beam 3 and improve the installation accuracy of the carbon fiber blade, the metal mandrel 6 is dumbbell-shaped, the middle part of the metal mandrel 6 is smoothly transited to the two ends of the metal mandrel, and the section of the end part of the metal mandrel 6 is polygonal; in order to prevent stress concentration caused by overlarge rigidity gradient, a transition section 7 is arranged in the carbon beam 3, materials of the transition section 7 are prepared by mixing crushed carbon fibers and low-temperature resin, the transition section 7 is connected with one end, close to the blade body 1, of the metal mandrel 6, one end of the transition section 7 is spherical, the other end of the transition section is conical, one end of the metal mandrel 6 is inwards concave, the spherical end of the transition section 7 is positioned in the concave of the metal mandrel 6, the conical end of the transition section 7 is far away from the metal mandrel 6 and is contracted, and the transition section forms flexible transition between the metal mandrel 6 and the carbon beam 3.
In order to make the setting of the blade body foam edge 5 more firm, as shown in fig. 2 and 6, a plurality of connecting pieces 8 are buried at both sides of the sheet-shaped portion 3-1 in this embodiment, one end of the connecting piece 8 away from the sheet-shaped portion 3-1 is located in the blade body foam edge 5, and the connecting piece 8 is provided with a plurality of barbs 8-1 for hooking the blade body foam edge 5.
In this embodiment, the carbon beam 3 and the carbon fiber skin 4 are made of carbon fiber reinforced composite materials; the blade body foam edge 5 is made of PMI foam; the metal core shaft 6 is made of titanium alloy, namely the whole blade is made of carbon fiber composite material, the part of the blade body 1 is partially filled with PMI foam for reducing weight, and the metal core shaft 6 made of titanium alloy is embedded in the carbon beam 3, so that the connection reliability of the carbon fiber blade and the compressor hub is ensured.
In order to further increase the integrity of the petiole 2 and increase the connection strength, as shown in fig. 1, a carbon fiber wrapping layer 9 is arranged outside the carbon fiber skin 4 at the petiole 2. Because the carbon fiber skin 4 is split, the carbon fiber skin 4 is firstly bonded and assembled with the carbon beam 3 and the blade body foam edge 5 to form a whole, then is wound and reinforced by the carbon fiber winding layer 9, and is machined to obtain the required shape.
In order to effectively solve the problem that a threaded hole cannot be formed in a carbon fiber reinforced composite structural member and the threaded locking is performed, as shown in fig. 1, 7 and 8, the carbon fiber winding layer 9 comprises a first winding layer 9-1 and a second winding layer 9-2 which are sequentially distributed along the axial direction of a blade handle 2, an anti-torsion block 10 is fixedly arranged between the first winding layer 9-1 and the second winding layer 9-2, the blade handle 2 sequentially passes through a hub outer ring 14 and a hub inner ring 15 of a compressor, the rear end of the blade handle 2 is fixedly provided with a locking piece 12 through a connecting screw 11 and is connected with a metal mandrel 6, the hub inner ring 15 is positioned between the anti-torsion block 10 and the locking piece 12, the anti-torsion block 10 ensures the assembly relation between a carbon fiber blade and a compressor hub, and the circumferential torsion of the carbon fiber blade is effectively prevented; washers 13 are arranged between the locking member 12 and the hub inner ring 15, and between the anti-torsion block 10 and the hub inner ring 15, and washers 13 are also arranged between the blade shanks 2 and the hub outer ring 14.
The working principle of the carbon fiber blade of this embodiment is as follows:
firstly, a first washer 13 is arranged on a blade shank 2 and is close to a blade body 1, then a second washer 13 is arranged on the blade shank 2 and is close to an anti-torsion block 10, the blade shank 2 sequentially passes through an outer hub ring 14 and an inner hub ring 15, then a third washer 13 is arranged on the blade shank 2 and is close to the inner hub ring 15, and a locking piece 12 is fixedly connected with a metal mandrel 6 through a connecting screw 11, at the moment, the locking piece 12 is positioned at the rear end of the blade shank 2, the inner hub ring 15 is positioned between the anti-torsion block 10 and the locking piece 12, the first washer 13 is positioned between the blade shank 2 and the outer hub ring 14, the second washer 13 is positioned between the anti-torsion block 10 and the inner hub ring 15, and the third washer 13 is positioned between the locking piece 12 and the inner hub ring 15; wherein, the carbon fiber blade is integrally made of carbon fiber reinforced composite material; the part of the blade body 1 is partially filled with a blade body foam edge 5 for reducing weight; the carbon beam 3 bears pneumatic bending moment, torque and centrifugal force when the carbon fiber blade works; the carbon fiber skin 4 ensures the pneumatic appearance of the whole blade; the metal mandrel 6 ensures the connection reliability of the carbon fiber blade and the compressor hub, the metal mandrel 6 is dumbbell-shaped, and the cross section of the end part of the metal mandrel 6 is polygonal, so that the metal mandrel 6 is prevented from generating relative axial and angular displacement in the carbon beam 3, and the installation precision of the carbon fiber blade is improved; the transition section 7 forms flexible transition between the metal mandrel 6 and the carbon beam 3, so that stress concentration caused by overlarge rigidity gradient at the transition section is prevented; the anti-twisting block 10 ensures the assembly relationship of the carbon fiber blade and the compressor hub, effectively preventing the carbon fiber blade from twisting circumferentially.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (5)
1. A carbon fiber blade for use at low temperatures, characterized in that: the carbon fiber blade sequentially comprises a carbon beam (3) and a carbon fiber skin (4) from inside to outside, wherein the carbon beam (3) comprises a sheet-shaped part (3-1), a transition part (3-2) and a columnar part (3-3) which are sequentially arranged, the sheet-shaped part (3-1) is positioned at a blade body (1) of the carbon fiber blade, the transition part (3-2) and the columnar part (3-3) are positioned at a blade handle (2) of the carbon fiber blade, blade body foam edges (5) are arranged on two sides of the sheet-shaped part (3-1), and the blade body foam edges (5) are also positioned in the carbon fiber skin (4); the rear end of the columnar part (3-3) is buried with a metal mandrel (6), a transition section (7) is arranged in the carbon beam (3), and the transition section (7) is connected with one end, close to the blade body (1), of the metal mandrel (6);
the metal core shaft (6) is dumbbell-shaped, and the middle part of the metal core shaft (6) is smoothly transited to the two ends of the metal core shaft; the cross sections of the end parts of the metal core shafts (6) are polygonal;
one end of the transition section (7) is spherical, the other end of the transition section is conical, one end of the metal mandrel (6) is recessed inwards, the spherical end of the transition section (7) is positioned in the recess of the metal mandrel (6), and the conical end of the transition section (7) is far away from the metal mandrel (6) to shrink;
the material of the transition section (7) is prepared by mixing crushed carbon fibers and low-temperature resin.
2. A carbon fiber blade for use at low temperatures according to claim 1, wherein: the two sides of the sheet-shaped part (3-1) are buried with a plurality of connecting pieces (8), one end, far away from the sheet-shaped part (3-1), of the connecting pieces (8) is positioned in the blade body foam edge (5), and the connecting pieces (8) are provided with a plurality of barbs (8-1) for hooking the blade body foam edge (5).
3. A carbon fiber blade for use at low temperatures according to claim 1, wherein: the carbon beam (3) and the carbon fiber skin (4) are made of carbon fiber reinforced composite materials; the blade body foam edge (5) is made of PMI foam; the metal core shaft (6) is made of titanium alloy.
4. A carbon fiber blade for use at low temperatures according to claim 1, wherein: the carbon fiber wrapping layer (9) is arranged outside the carbon fiber skin (4) at the position of the blade handle (2).
5. The carbon fiber blade for use at low temperatures according to claim 4, wherein: the carbon fiber winding layer (9) comprises a first winding layer (9-1) and a second winding layer (9-2) which are sequentially distributed along the axial direction of the blade handle (2), an anti-torsion block (10) is arranged between the first winding layer (9-1) and the second winding layer (9-2), the blade handle (2) sequentially penetrates through a hub outer ring (14) and a hub inner ring (15) of the compressor, the rear end of the blade handle (2) is fixedly provided with a locking piece (12) through a connecting screw (11) and connected with the metal mandrel (6), and the hub inner ring (15) is positioned between the anti-torsion block (10) and the locking piece (12); the novel hub is characterized in that washers (13) are arranged between the locking piece (12) and the hub inner ring (15) and between the anti-torsion block (10) and the hub inner ring (15), and washers (13) are also arranged between the blade handles (2) and the hub outer ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210842369.1A CN115163555B (en) | 2022-07-18 | 2022-07-18 | Carbon fiber blade used at low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210842369.1A CN115163555B (en) | 2022-07-18 | 2022-07-18 | Carbon fiber blade used at low temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163555A CN115163555A (en) | 2022-10-11 |
| CN115163555B true CN115163555B (en) | 2024-02-13 |
Family
ID=83494506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210842369.1A Active CN115163555B (en) | 2022-07-18 | 2022-07-18 | Carbon fiber blade used at low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115163555B (en) |
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|---|---|---|---|---|
| EP1184566A1 (en) * | 1999-05-31 | 2002-03-06 | Manuel Torres Martinez | Aerogenerator blade |
| CN105682904A (en) * | 2013-10-04 | 2016-06-15 | 斯奈克玛 | Method and assembly for the production of a composite blade |
| WO2017186640A1 (en) * | 2016-04-25 | 2017-11-02 | Siemens Aktiengesellschaft | Hybrid rotor blade or guide blade and method for the production thereof |
| CN108757270A (en) * | 2018-07-10 | 2018-11-06 | 江苏新扬新材料股份有限公司 | Integrated molding composite material blade structure |
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
| CN109624369A (en) * | 2018-12-07 | 2019-04-16 | 江苏新扬新材料股份有限公司 | A kind of preparation method of coldblade |
| JP2019094796A (en) * | 2017-11-20 | 2019-06-20 | 東レ・カーボンマジック株式会社 | Airfoil |
| CN212429304U (en) * | 2019-12-03 | 2021-01-29 | 惠阳航空螺旋桨有限责任公司 | Anti-icing wind tunnel blade |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6670021B2 (en) * | 2001-11-14 | 2003-12-30 | General Electric Company | Monolithic ceramic attachment bushing incorporated into a ceramic matrix composite component and related method |
| US10465703B2 (en) * | 2016-04-11 | 2019-11-05 | United Technologies Corporation | Airfoil |
-
2022
- 2022-07-18 CN CN202210842369.1A patent/CN115163555B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1184566A1 (en) * | 1999-05-31 | 2002-03-06 | Manuel Torres Martinez | Aerogenerator blade |
| CN105682904A (en) * | 2013-10-04 | 2016-06-15 | 斯奈克玛 | Method and assembly for the production of a composite blade |
| WO2017186640A1 (en) * | 2016-04-25 | 2017-11-02 | Siemens Aktiengesellschaft | Hybrid rotor blade or guide blade and method for the production thereof |
| JP2019094796A (en) * | 2017-11-20 | 2019-06-20 | 東レ・カーボンマジック株式会社 | Airfoil |
| CN108757270A (en) * | 2018-07-10 | 2018-11-06 | 江苏新扬新材料股份有限公司 | Integrated molding composite material blade structure |
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
| CN109624369A (en) * | 2018-12-07 | 2019-04-16 | 江苏新扬新材料股份有限公司 | A kind of preparation method of coldblade |
| CN212429304U (en) * | 2019-12-03 | 2021-01-29 | 惠阳航空螺旋桨有限责任公司 | Anti-icing wind tunnel blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115163555A (en) | 2022-10-11 |
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Correction item: Inventor Correct: Li Jun|Han Xu|Xiao Weihua|Liu Yu|Ma Ting|Zhang Chen|He Yuanqing|Wang Ying False: Ma Tingting|Han Xu|Xiao Weihua|Liu Yu|Ma Ting|Zhang Chen|He Yuanqing|Wang Ying Number: 16-01 Volume: 40 |
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Inventor after: Li Jun Inventor after: Han Xu Inventor after: Xiao Weihua Inventor after: Liu Yu Inventor after: Ma Tingting Inventor after: Zhang Chen Inventor after: He Yuanqing Inventor after: Wang Ying Inventor before: Li Jun Inventor before: Han Xu Inventor before: Xiao Weihua Inventor before: Liu Yu Inventor before: Ma Ting Inventor before: Zhang Chen Inventor before: He Yuanqing Inventor before: Wang Ying |