CN106089310A - A kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity - Google Patents
A kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity Download PDFInfo
- Publication number
- CN106089310A CN106089310A CN201610515888.1A CN201610515888A CN106089310A CN 106089310 A CN106089310 A CN 106089310A CN 201610515888 A CN201610515888 A CN 201610515888A CN 106089310 A CN106089310 A CN 106089310A
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- China
- Prior art keywords
- disc
- turbine disk
- fiber reinforcement
- wheel
- hub
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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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/028—Blade-carrying members, e.g. rotors the rotor disc being formed of sheet laminae
-
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/06—Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections
-
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
-
- 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
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/081—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
- F01D5/082—Cooling fluid being directed on the side of the rotor disc or at the roots of the blades on the side of the rotor disc
-
- 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
- F05D2260/00—Function
- F05D2260/94—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF]
- F05D2260/941—Functionality given by mechanical stress related aspects such as low cycle fatigue [LCF] of high cycle fatigue [HCF] particularly aimed at mechanical or thermal stress reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention proposes a kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity, and the described turbine disk includes wheel rim (11), front hub (8) and rear-wheel hub (6), front disc (3) and rear disc (4), front disc fiber reinforcement ring (9) and rear disc fiber reinforcement ring (10)；Fiber reinforcement ring (9,10) is symmetrically dispersed in the transition region of dish chamber (5) interior profile.The double disc turbine disk of fiber reinforcement improves the circumference at disc and wheel hub switching, bearing capacity radially, axially, fibrous ring strengthens the intensity of dish intracavity profile group section, also improve the stress concentration phenomenon at disc adapter surface outer with wheel hub simultaneously, fully improve the stress distribution of disc, simultaneously because SiC fibre density is little relative to matrix material, also mitigate the quality of double disc turbine disk.This structural design and processing is simple, it is easy to realize in double disc turbine disc structures.
Description
Technical field
The present invention relates to a kind of high-pressure turbine dish structure design, particularly relate to a kind of fiber improving disc bearing capacity and increase
Strong double disc turbine disk, it can effectively be strengthened the intensity of disc and wheel hub transit location, improve the stress distribution of disc, improves
The intensity of double disc turbine disks and anti-fatigue performance, alleviate wheel disc quality simultaneously.Belong to aero-engine high-pressure turbine dish structure
Design field.
Background technology
Double disc turbine disks are under high Property in America propeller for turboprop machine technology (IHPTET) is planned, and push away for height of future generation
The high-pressure turbine dish design of anharmonic ratio fanjet, proposes lightweight, the advanced turbine disc structure designing technique of high cooling efficiency.
Both at home and abroad researcher designs around the structure of double disc turbine disks and proposes following several method:
Document US1999/005961287A proposes a kind of double disc turbine disks distinguishing the most single disc turbine disk.This
Plant the turbine disk to be welded by two symmetry half dishes, wheel disc intermediate formation dish cavity configuration, and between the core of two disc, add pad
Sheet.Cold air, by the perforate entrance dish chamber at core, on the one hand alleviates wheel disc quality, additionally increases fluid interchange face, dish chamber
Long-pending.
Document US2005/0025627A1 proposes another kind does not has double disc turbine disc structures of pad between core.This
The turbine disk is for preventing two disc under high rotating speed from contacting due to axial deformation at core, and its wheel hub axial dimension is bigger.
Document US2000/6267553B1 proposes a kind of double disc wheel discs applied on high-pressure compressor.This wheel disc is tied
Structure can alleviate wheel disc quality to a great extent, has important meaning for improving engine performance.
Document CN2014/104196572A proposes a kind of double disc turbine disks with dish chamber diversion rib plate, at double spokes
Two disc of the plate turbine disk are provided with some diversion rib plates, and turbine disk Pan Yuanchu is evenly distributed cold air venthole, and cold air leads to
Cross dish edge venthole and enter turbo blade from the dish chamber of double disc turbine disks.
The Cooling Design of the most double disc turbine disks is the most advanced, and cooling effect is the best, and wheel disc weight loss effect is the brightest
Aobvious, as important load parts, it is necessary to consider the bearing capacity of wheel disc.But the cooling of the double disc turbine disk places one's entire reliance upon
Dish chamber between two disc, in order to strengthen cooling effect, the space in usual dish chamber is relatively big, causes front disc and the thickness of rear disc
Degree is restricted.In wheel disc high speed rotational operation, front hub and rear-wheel hub produce axial deformation, transfer outside disc with wheel hub
Section and dish intracavity profile group section stress are relatively big, centrifugal stress when this is also subjected to high speed rotating at two and thermal stress, therefore
Become the weak location of whole wheel disc.So the bulk in dish chamber, quasi spline are particularly important, and can not by increase spoke
This also becomes the thin of double disc turbine disc structure Intensity Design how to ensure reliable requirement of strength in the case of slab geomitry size
Weak link.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is: in the case of can not be by increasing disc physical dimension, improve
Double disc turbine disk disc stress distribution, improve double disc turbine disk intensity at disc with wheel hub switching, improve disc and hold
Loading capability, can alleviate again wheel disc quality simultaneously, and processing is simple.
In order to solve the problems referred to above, the present invention proposes a kind of double disc turbine of fiber reinforcement improving disc bearing capacity
Dish, the described turbine disk includes wheel rim, front hub and rear-wheel hub, front disc and rear disc, front disc fiber reinforcement ring and rear disc
Fiber reinforcement ring；Described front hub is connected with described wheel rim by described front disc, described rear-wheel hub by described rear disc and
Described wheel rim is connected, and described front disc and described rear disc are connected respectively described front hub and described rear-wheel hub, described before
Disc and described front hub and described rear disc and described rear-wheel hub respectively about symmetrical before and after turbine disk centrage, described before
Disc, rear disc surround turbine disk centrage formation dish chamber with respective wheel hub, form annular disk between front hub and rear-wheel hub
Heart air inlet conduit, wheel rim center is uniformly distributed circumferentially dish edge venthole, and each disc is put down by circular arc adapter surface
Slip over to cross and be connected to corresponding wheel hub, in the transition region of fiber reinforcement ring implantation dish intracavity profile symmetrically.
Preferably, described fiber reinforcement ring implant the front disc of the described turbine disk and rear disc Inner arc adapter surface should
Power concentrated area.
Preferably, the fiber reinforcement ring in described front disc and described rear disc is symmetrical arranged about wheel disc centrage.
Preferably, and each fiber reinforcement ring is arranged in each disc with wheel disc axis for axle center.
Preferably, the quantity of the fiber reinforcement ring in described front disc and described rear disc is one.
Preferably, described front disc and described front hub and described rear disc and described rear-wheel hub respectively with the turbine disk
The inclined layout of centrage.
Preferably, the outer mold surface of described disc is transitioned into described wheel hub by external arc adapter surface, the dish chamber of described disc
Face is transitioned into described wheel hub by Inner arc adapter surface.
Preferably, front disc fiber reinforcement ring and rear disc fiber reinforcement ring are symmetrical arranged about wheel disc centrage.
Preferably, described fiber reinforcement ring is SiC fiber reinforcement ring.
Preferably, the SiC fibre density of described SiC fiber reinforcement ring is the 40% of wheel disc matrix material, resisting of SiC fiber
Tensile strength is the twice of matrix material.
Preferably, the cross section of described fiber reinforcement ring is rectangle.
Beneficial effects of the present invention is as follows:
Compared with the web pattern of conventional turbine dish, the present invention is applicable to the structure of more advanced double disc turbine disks and sets
Meter, the double disc turbine disk of fiber reinforcement improves the circumference at disc and wheel hub switching, bearing capacity radially, axially, fiber
Ring strengthens the intensity of dish intracavity profile group section, the most just improves the stress at disc adapter surface outer with wheel hub simultaneously and concentrates existing
As, fully improve the stress distribution of disc, simultaneously because SiC fibre density is little relative to matrix material, also mitigate double disc whirlpool
The quality of wheel disc.This structural design and processing is simple, it is easy to realize in double disc turbine disc structures.
Accompanying drawing explanation
The double disc turbine disk two-dimensional section schematic diagram of Fig. 1 fiber reinforcement；
The double disc turbine disc structure schematic diagram of Fig. 2 fiber reinforcement；
Fig. 3 fiber reinforcement ring structure schematic diagram.
Reference is as follows:
The double disc turbine disk of 1 fiber reinforcement, 2 dish edge ventholes, disc before 3, disc after 4,5 dish chambeies, 6 rear-wheel hubs, 7 cores
Air inlet conduit, 8 front hubs, disc fiber reinforcement ring before 9, disc fiber reinforcement ring after 10,11 wheel rims, 12 external arc adapter surfaces,
13 Inner arc adapter surfaces, 14 fibrous ring external diameters, 15 fibrous ring internal diameters, 16 fibrous ring thickness, 17 wheel disc axis, 18 take turns disk center
Line.
Detailed description of the invention
Below, referring to the drawings embodiments of the present invention are illustrated.
As Figure 1-3, a kind of double disc turbine disk of fiber reinforcement improving disc bearing capacity, this turbine disk includes wheel
Edge 11, front hub 8 and rear-wheel hub 6, front disc 3 and rear disc 4, front disc fiber reinforcement ring 9 and rear disc fiber reinforcement ring 10.
Front hub 8 is connected with wheel rim 11 by front disc 3, and rear-wheel hub 6 is connected with wheel rim 11 by rear disc 4, front hub 8 and rear-wheel hub
6 are separate from, and front disc 3 and rear disc 4 are connected respectively front hub 8 and rear-wheel hub 6, front disc 3 and front hub 8,
After and, disc 4 and rear-wheel hub 6 are respectively about symmetrical before and after turbine disk centrage 18, and respectively with turbine disk centrage 18 in one
Determining angle to be in tilted layout, front disc 3, rear disc 4 and respective wheel hub surround wheel disc centrage 18 and form a dish chamber 5, front-wheel
The annular core air inlet duct road 7 formed between hub 8 and rear-wheel hub 6 is the passage in cold air entrance dish chamber 5, wheel rim 11 center
It is uniformly distributed circumferentially dish edge venthole 2, enters turbo blade for cold air from dish chamber 5.Each disc is entered by circular arc adapter surface
The capable wheel hub that is connected smoothly, the outer mold surface of disc is transitioned into wheel hub by external arc adapter surface 12, and the face, dish chamber of disc leads to
Cross Inner arc adapter surface 13 and be transitioned into wheel hub.
Owing at disc external arc adapter surface 12 and Inner arc adapter surface 13, stress is relatively big, this is also subjected to high-speed rotary at two
Centrifugal stress when turning and thermal stress, therefore become the weak location of whole wheel disc.And fibre reinforced materials generally has high ratio
The advantages such as intensity, high ratio modulus, high temperature resistant, anticorrosive and low-density, it is possible to increase the bearing capacity of structure, therefore for solving wheel
Defect present in dish, the present invention is at the front disc of wheel disc and the area of stress concentration of the corresponding Inner arc adapter surface 13 of rear disc
Territory, each implants a fiber reinforcement ring, makes fiber reinforcement ring be embedded in dish chamber 5 in the transition region of profile symmetrically, i.e. before
Disc fiber reinforcement ring 9 and rear disc fiber reinforcement ring 10 are symmetrical arranged about wheel disc centrage 18, and each enhancing ring with
Wheel disc axis 17 is arranged in each disc for axle center.
The cross section of fiber reinforcement ring is rectangle, the external diameter 14 of described fiber reinforcement ring, internal diameter 15 and thickness 16 size ginseng
Number determines the fibrous ring reinforced effects to wheel disc bearing capacity, and it can concentrate feature to determine according to the stress of the turbine disk.Fiber increases
Qiang Huanke uses SiC fiber, and its density is the 40% of wheel disc matrix material, can alleviate wheel disc quality；And tensile strength is base
The twice of body material, can strengthen the bearing capacity of disc, improves the stress distribution of wheel disc.
The production method of the double disc turbine disk of above-mentioned fiber reinforcement is: SiC fiber uses three dimensional weaving technique, according to orthogonal
Three-dimensional structure braiding cyclization, then implants fibrous ring in turbine disk parent metal powder, uses hot isostatic pressing technique by fiber
Ring and the turbine disk are fixed together, and finally carry out machining, to meet the configuration design requirement of wheel disc.The present invention uses
SiC fiber reinforcement ring use three dimensional weaving technique, this technique can meet fiber reinforcement ring to wheel disc circumference, radially, axle
To the requirement of bearing capacity.
Compared with the web pattern of conventional turbine dish, the present invention is applicable to the structure of more advanced double disc turbine disks and sets
Meter, the double disc turbine disk of SiC fiber reinforcement improves the circumference at disc and wheel hub switching, bearing capacity radially, axially, fine
Dimension ring strengthens the intensity of dish intracavity profile group section, the most just improves the stress at disc adapter surface outer with wheel hub simultaneously and concentrates
Phenomenon, fully improves the stress distribution of disc, simultaneously because SiC fibre density is little relative to matrix material, also mitigates double disc
The quality of the turbine disk.This structural design and processing is simple, it is easy to realize in double disc turbine disc structures.
Although the present invention have been described above referring to the drawings shown in embodiment be described and make this area skill
Art personnel are readily understood by and put into practice the present invention, but the exemplary only or preferred example of these embodiments, the present invention is also
Being not limited to the above embodiments, it can carry out all deformation without departing from the spirit and scope of the invention, thus obtains each
Planting and replace example, fixed case, variation or improve example, these are also contained in the technical scope described in claim.
Claims (10)
1. the double disc turbine disk of fiber reinforcement improving disc bearing capacity, it is characterised in that: the described turbine disk includes wheel
Edge (11), front hub (8) and rear-wheel hub (6), front disc (3) and rear disc (4), front disc fiber reinforcement ring (9) and rear disc
Fiber reinforcement ring (10)；Described front hub (8) is connected with described wheel rim (11) by described front disc (3), described rear-wheel hub (6)
Being connected with described wheel rim (11) by described rear disc (4), described front disc (3) and described rear disc (4) are connected respectively
Described front hub (8) and described rear-wheel hub (6), described front disc (3) and described front hub (8) and described rear disc (4) and institute
Stating rear-wheel hub (6) the most symmetrical respectively about turbine disk centrage (18), described front disc (3), rear disc (4) are taken turns with respective
Hub surrounds turbine disk centrage (18) formation dish chamber (5), forms annular core air inlet duct between front hub (8) and rear-wheel hub (6)
Road (7), wheel rim (11) center is uniformly distributed circumferentially dish edge venthole (2), and each disc (3,4) passes through circular arc adapter surface
(12,13) are connected smoothly to the wheel hub (8,6) being connected, and fiber reinforcement ring (9,10) implants disc mid-game chamber symmetrically
(5) in the transition region of interior profile.
The turbine disk the most according to claim 1, it is characterised in that described fiber reinforcement ring (9,10) implants the described turbine disk
Front disc (3) and the region of stress concentration of Inner arc adapter surface (13) of rear disc (4).
The turbine disk the most according to claim 1, it is characterised in that the fibre in described front disc (3) and described rear disc (4)
Dimension strengthens ring (9,10) and is symmetrical arranged about wheel disc centrage (18).
The turbine disk the most according to claim 3, it is characterised in that and each fiber reinforcement ring (9,10) is with wheel disc axis
(17) it is that axle center is arranged in each disc.
The turbine disk the most according to claim 1, it is characterised in that the fibre in described front disc (3) and described rear disc (4)
Dimension strengthens the quantity of ring and is one.
The turbine disk the most according to claim 1, it is characterised in that described front disc (3) and described front hub (8) and
Described rear disc (4) and described rear-wheel hub (6) respectively with turbine disk centrage (18) inclined layout.
The turbine disk the most according to claim 1, it is characterised in that the outer mold surface of described disc (3,4) is turned by external arc
Junction (12) is transitioned into described wheel hub (8,6), and the face, dish chamber of described disc (3,4) is transitioned into institute by Inner arc adapter surface (13)
State wheel hub (8,6).
The turbine disk the most according to claim 1, it is characterised in that described fiber reinforcement ring is SiC fiber reinforcement ring.
The turbine disk the most according to claim 8, it is characterised in that the SiC fibre density of described SiC fiber reinforcement ring is wheel
The 40% of dish matrix material, the tensile strength of SiC fiber is the twice of matrix material.
The turbine disk the most according to claim 1, it is characterised in that the cross section of described fiber reinforcement ring is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515888.1A CN106089310B (en) | 2016-07-01 | 2016-07-01 | A kind of double disc turbine disks of the fiber reinforcement for improving disc bearing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610515888.1A CN106089310B (en) | 2016-07-01 | 2016-07-01 | A kind of double disc turbine disks of the fiber reinforcement for improving disc bearing capacity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106089310A true CN106089310A (en) | 2016-11-09 |
| CN106089310B CN106089310B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610515888.1A Active CN106089310B (en) | 2016-07-01 | 2016-07-01 | A kind of double disc turbine disks of the fiber reinforcement for improving disc bearing capacity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513976A (en) * | 2016-12-12 | 2017-03-22 | 中国燃气涡轮研究院 | Pressurization welding method of double-spoke plate turbine disc |
| CN109356665A (en) * | 2018-12-12 | 2019-02-19 | 中国北方发动机研究所(天津) | A kind of turbine structure |
| CN112276331A (en) * | 2020-10-16 | 2021-01-29 | 中国航发四川燃气涡轮研究院 | Welding method for double-spoke-plate turbine disk |
| CN112377266A (en) * | 2020-11-13 | 2021-02-19 | 中国航发湖南动力机械研究所 | Multi-spoke-plate type centrifugal impeller |
| CN112943374A (en) * | 2019-12-11 | 2021-06-11 | 中南大学 | Double-spoke-plate turbine disc with receiving holes |
| CN117722235A (en) * | 2024-02-18 | 2024-03-19 | 中国航发四川燃气涡轮研究院 | Double-radial-plate turbine disc |
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| GB1170592A (en) * | 1966-11-29 | 1969-11-12 | Rolls Royce | Aerofoil-Shaped Blades and Blade Assemblies, for use in a Fluid Flow Machine |
| US5961287A (en) * | 1997-09-25 | 1999-10-05 | United Technologies Corporation | Twin-web rotor disk |
| US6213720B1 (en) * | 1999-06-11 | 2001-04-10 | Alliedsignal, Inc. | High strength composite reinforced turbomachinery disk |
| CN103310046A (en) * | 2013-05-30 | 2013-09-18 | 西北工业大学 | Optimization design method for shape of inner cavity of turbine disc with radial plate based on hyperelliptic curve |
| CN104196572A (en) * | 2014-07-15 | 2014-12-10 | 西北工业大学 | Twin-web rotor disc provided with disc cavity flow-guide rib plates |
| CN105275499A (en) * | 2015-06-26 | 2016-01-27 | 中航空天发动机研究院有限公司 | Disc center air inlet structure of double-radial-plate turbine disc with centrifugal pressurization effect and sealing effect |
-
2016
- 2016-07-01 CN CN201610515888.1A patent/CN106089310B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1170592A (en) * | 1966-11-29 | 1969-11-12 | Rolls Royce | Aerofoil-Shaped Blades and Blade Assemblies, for use in a Fluid Flow Machine |
| US5961287A (en) * | 1997-09-25 | 1999-10-05 | United Technologies Corporation | Twin-web rotor disk |
| US6213720B1 (en) * | 1999-06-11 | 2001-04-10 | Alliedsignal, Inc. | High strength composite reinforced turbomachinery disk |
| CN103310046A (en) * | 2013-05-30 | 2013-09-18 | 西北工业大学 | Optimization design method for shape of inner cavity of turbine disc with radial plate based on hyperelliptic curve |
| CN104196572A (en) * | 2014-07-15 | 2014-12-10 | 西北工业大学 | Twin-web rotor disc provided with disc cavity flow-guide rib plates |
| CN105275499A (en) * | 2015-06-26 | 2016-01-27 | 中航空天发动机研究院有限公司 | Disc center air inlet structure of double-radial-plate turbine disc with centrifugal pressurization effect and sealing effect |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513976A (en) * | 2016-12-12 | 2017-03-22 | 中国燃气涡轮研究院 | Pressurization welding method of double-spoke plate turbine disc |
| CN106513976B (en) * | 2016-12-12 | 2019-02-26 | 中国燃气涡轮研究院 | A kind of double disc turbine disk pressurization welding methods |
| CN109356665A (en) * | 2018-12-12 | 2019-02-19 | 中国北方发动机研究所(天津) | A kind of turbine structure |
| CN112943374A (en) * | 2019-12-11 | 2021-06-11 | 中南大学 | Double-spoke-plate turbine disc with receiving holes |
| CN112943374B (en) * | 2019-12-11 | 2022-11-15 | 中南大学 | Double-spoke-plate turbine disc with receiving holes |
| CN112276331A (en) * | 2020-10-16 | 2021-01-29 | 中国航发四川燃气涡轮研究院 | Welding method for double-spoke-plate turbine disk |
| CN112377266A (en) * | 2020-11-13 | 2021-02-19 | 中国航发湖南动力机械研究所 | Multi-spoke-plate type centrifugal impeller |
| CN112377266B (en) * | 2020-11-13 | 2022-07-22 | 中国航发湖南动力机械研究所 | Multi-spoke-plate type centrifugal impeller |
| CN117722235A (en) * | 2024-02-18 | 2024-03-19 | 中国航发四川燃气涡轮研究院 | Double-radial-plate turbine disc |
| CN117722235B (en) * | 2024-02-18 | 2024-05-17 | 中国航发四川燃气涡轮研究院 | Double-radial-plate turbine disc |
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|---|---|
| CN106089310B (en) | 2017-08-29 |
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