CN111664124B - Stator structure, rotor and stator assembly structure with same and assembly method of rotor and stator assembly structure - Google Patents
Stator structure, rotor and stator assembly structure with same and assembly method of rotor and stator assembly structure Download PDFInfo
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- CN111664124B CN111664124B CN202010505444.6A CN202010505444A CN111664124B CN 111664124 B CN111664124 B CN 111664124B CN 202010505444 A CN202010505444 A CN 202010505444A CN 111664124 B CN111664124 B CN 111664124B
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
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- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
- F04D29/544—Blade shapes
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- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application belongs to the technical field of compressor assembly design, concretely relates to stator structure, include: the inner wall of the stator casing is provided with an annular limiting groove; the two semi-annular edge rings are arranged on the inner side of the stator casing and are mutually butted to form an edge ring; one end of the edge ring is clamped into the annular limiting groove; the two semi-annular stator inner rings are mutually butted to form a stator inner ring; each semi-annular stator inner ring is correspondingly arranged in one semi-annular edge ring; two sets of stator blades, every group of stator blade correspond and arrange the setting along circumference between a semi-annular marginal ring, the semi-annular stator inner ring that corresponds with this semi-annular marginal ring, and the apex shaping of each stator blade is on the inner wall that corresponds semi-annular marginal ring in it, and the blade root shaping is on the outer wall that corresponds semi-annular stator inner ring. In addition, the invention also relates to a rotor-stator assembly structure with the stator structure and an assembly method of the rotor-stator structure.
Description
Technical Field
The application belongs to the technical field of compressor assembly design, and particularly relates to a stator structure, a rotor and stator assembly structure with the stator structure and an assembly method of the rotor and stator assembly structure.
Background
The stator structure in the engine compressor comprises a stator casing, a stator inner ring positioned in the stator casing and a plurality of stator blades axially arranged between the stator casing and the stator inner ring, wherein the blade tip of each stator blade is connected with the inner wall of the stator casing, the blade root of each stator blade is connected with the outer wall of the stator inner ring, the stator inner ring is sleeved on a rotor drum, the front end of the stator casing is in butt joint with the rear end of a front-stage mounting casing, the rear end of the stator casing is in butt joint with the front end of a rear-stage mounting casing, and each stator blade is positioned between the front-stage rotor blade and a rear-stage rotor blade to adjust the flow direction of air flow between the two-stage rotor blades.
Currently, in order to realize assembly, the stator structure is usually designed as an opposite-opening structure, that is, the stator casing is designed to be formed by two semi-annular stator casings in butt joint, a limit groove is formed on the inner wall of each semi-annular stator casing along the circumferential direction, a flange plate is arranged at the tip part of each stator blade, each stator blade is divided into two groups, each group of stator blades corresponds to one semi-annular stator casing, when the stator structure is assembled with the rotor component, the flange plate at the tip part of each group of stator blades sequentially slides into the limit groove of the corresponding semi-annular stator casing, rotates to a preset position for positioning, then each stator blade is arranged between a preceding-stage rotor blade and a subsequent-stage rotor blade, the blade root of each stator blade is sleeved on the outer wall of a stator inner ring on a rotor drum through a rivet, and the two semi-annular stator casings are in butt joint to form the stator casing, the front end of the stator casing is butted with the rear end of the front-stage installation casing, and the rear end of the stator casing is butted with the front end of the rear-stage installation casing, so that the process is complicated, the connection among a plurality of components is designed, the assembly efficiency is low, and the assembly period is long.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only used for assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is already disclosed at the filing date of the present patent application.
Disclosure of Invention
The present application is directed to a stator structure, a rotor stator assembly structure having the same, and an assembly method thereof, which overcome or alleviate at least one of the known technical disadvantages.
The technical scheme of the application is as follows:
one aspect provides a stator structure, comprising:
the inner wall of the stator casing is provided with an annular limiting groove;
the two semi-annular edge rings are arranged on the inner side of the stator casing and are mutually butted to form an edge ring; one end of the edge ring is clamped into the annular limiting groove;
the two semi-annular stator inner rings are mutually butted to form a stator inner ring; each semi-annular stator inner ring is correspondingly arranged in one semi-annular edge ring;
two sets of stator blades, every group of stator blade correspond and arrange the setting along circumference between a semi-annular marginal ring, the semi-annular stator inner ring that corresponds with this semi-annular marginal ring, and the apex shaping of each stator blade is on the inner wall that corresponds semi-annular marginal ring in it, and the blade root shaping is on the outer wall that corresponds semi-annular stator inner ring.
Another aspect provides a stator assembly structure, comprising the stator structure described above, wherein,
each stator blade is positioned between the preceding stage rotor blade and the succeeding stage rotor blade;
the stator inner ring is sleeved on a rotor drum barrel positioned between the front-stage rotor blade and the rear-stage rotor blade;
the front end of the stator casing is connected with the rear end of the front-stage installation casing, and the rear end of the stator casing is connected with the front end of the rear-stage installation casing; the rear end of the front-stage mounting casing is provided with an annular positioning groove; one end of the edge ring, which is back to the annular limiting groove, is clamped into the annular positioning groove.
According to at least one embodiment of the present application, in the rotor-stator assembly structure, one end of one of the semi-annular rim rings, which faces away from the annular limiting groove, is provided with a limiting opening;
the rear end of the front-stage mounting casing is provided with a positioning port;
the rotor-stator assembly structure further includes:
the clamping block is clamped into the limiting opening and the positioning opening so as to prevent the edge ring from rotating along the circumferential direction.
According to at least one embodiment of the present application, in the rotor and stator assembling structure, the limiting opening is located at a butt joint portion of the two semi-annular rim rings.
According to at least one embodiment of the present application, in the above rotor and stator assembling structure, the stator case front end outer wall has a front connecting edge;
the outer wall of the rear end of the front-stage mounting casing is provided with a front-stage mounting edge; the preceding stage installation limit passes through bolted connection with preceding connection limit.
According to at least one embodiment of the present application, in the rotor and stator assembling structure, the front-stage mounting edge and the front connecting edge axially clamp the fixture block.
According to at least one embodiment of the present application, in the above rotor and stator assembling structure, the front connecting edge has a folded edge; the folded edge covers the clamping block to tightly press the clamping block.
According to at least one embodiment of the present application, in the above rotor and stator assembling structure, the stator case rear end outer wall has a rear connecting edge;
the outer wall of the front end of the rear-stage mounting casing is provided with a rear-stage mounting edge; the rear-stage mounting edge is connected with the rear connecting edge through a bolt.
In another aspect, a rotor-stator structure assembly method is provided, including:
separating the two semi-annular edge rings and the two semi-annular stator inner rings;
arranging a semi-annular stator inner ring between a front-stage rotor blade and a rear-stage rotor blade, and mutually butting to form a stator inner ring, wherein the stator inner ring is sleeved on a rotor drum barrel; the two semi-annular edge rings are mutually butted to form an edge ring; the front end of the edge ring is clamped into the annular positioning groove;
clamping the fixture block into the limiting opening and the positioning opening;
sleeving the stator casing on the periphery of the rear-stage rotor blade, and moving the stator casing towards the front-stage rotor blade along the axial direction to enable the rear end of the edge ring to be clamped into the annular limiting groove;
and the front connecting edge is connected with the front-stage mounting edge through a bolt, and the rear connecting edge is connected with the rear-stage mounting edge through a bolt.
Drawings
FIG. 1 is a schematic view of a prior art rotor-stator assembly;
FIG. 2 is a schematic view of a rotor-stator assembly structure provided in an embodiment of the present application;
FIG. 3 is a partial schematic view of the structure of the portion A of FIG. 2;
wherein:
1-a stator case; 2-a semi-annular rim ring; 3-a semi-annular stator inner ring; 4-stator blades; 5-preceding stage rotor blades; 6-a rear stage rotor blade; 7-a rotor drum; 8-mounting a casing at a front stage; 9-mounting a casing at the later stage; 10-fixture block.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, and other related parts may refer to general designs, and in case of conflict, the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that devices or elements must have specific orientations, be constructed and operated in specific orientations, and that when the absolute position of an object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the description of the application should not be construed as an absolute limitation of quantity, but rather as the presence of at least one. The use of "including" or "comprising" and the like in the description of the present application is intended to mean that the elements or items listed before that word or item and their equivalents, while excluding other elements or items, are included in the list of elements or items listed after that word or item.
Further, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and the like as used in the description of the present application are to be construed broadly, e.g., the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in the present application according to their specific situation.
The present application is described in further detail below with reference to fig. 1 to 3.
One aspect provides a stator structure, comprising:
the inner wall of the stator casing 1 is provided with an annular limiting groove;
two semi-annular edge rings 2 are arranged at the inner side of the stator casing 1 and are butted with each other to form an edge ring; one end of the edge ring is clamped into the annular limiting groove;
the two semi-annular stator inner rings 3 are mutually butted to form a stator inner ring; each semi-annular stator inner ring 3 is correspondingly arranged in one semi-annular edge ring 2;
two sets of stator blades 4, every group of stator blades 4 correspond and arrange the setting along circumference between a semi-annular marginal ring 2, the semi-annular stator inner ring that corresponds with this semi-annular marginal ring 2, and the apex shaping of each stator blade 4 is on the inner wall that corresponds semi-annular marginal ring 2 in it, and the blade root shaping is on the outer wall that corresponds semi-annular stator inner ring 3.
For the stator structure disclosed in the above embodiment, it can be understood by those skilled in the art that the semi-annular rim ring 2, the corresponding set of stator blades 4 and the corresponding semi-annular stator inner ring 3 are designed to be an integral structure, when the stator structure is assembled with the compressor rotor component, only the semi-annular stator inner ring 3 needs to be placed between the preceding stage rotor blade 5 and the succeeding stage rotor blade 6, and are butted with each other to form the stator inner ring sleeved on the rotor drum 7, and the two semi-annular rim rings 2 are butted with each other to form the rim ring, and then the stator casing is assembled.
For the stator structure disclosed in the above embodiment, it can be understood by those skilled in the art that the flange ring and the stator inner ring are designed to be half-and-half structures, which is very convenient for assembly, and the stator cartridge 1 located at the periphery is designed to be an integral ring structure, which has better air tightness, and after being assembled with the rotor component of the compressor, can provide effective guarantee for the air tightness of the whole compressor.
Another aspect provides a rotor-stator assembly structure, including the stator structure described above, wherein,
each stator blade 4 is positioned between the preceding stage rotor blade 5 and the succeeding stage rotor blade 6;
the stator inner ring is sleeved on a rotor drum barrel 7 positioned between the preceding-stage rotor blade 5 and the rear-stage rotor blade 6;
the front end of the stator casing 1 is connected with the rear end of the front-stage mounting casing 8, and the rear end of the stator casing is connected with the front end of the rear-stage mounting casing 9; the rear end of the front-stage mounting casing 8 is provided with an annular positioning groove; one end of the edge ring, which is back to the annular limiting groove, is clamped into the annular positioning groove.
In some alternative embodiments, in the rotor-stator assembly structure, one end of one semi-annular rim ring 2, which faces away from the annular limiting groove, is provided with a limiting opening;
the rear end of the front-stage mounting casing 8 is provided with a positioning opening;
the rotor-stator assembly structure further includes:
the fixture blocks 10 are clamped into the limiting openings and the positioning openings to prevent the edge ring from rotating along the circumferential direction, and therefore positioning of the stator blades 4 is achieved.
In some optional embodiments, in the rotor-stator assembling structure, the limiting opening is located at a butt joint portion of the two semi-annular flanges 2, a specific position of the limiting opening can be shown in fig. 3, the limiting opening is located at the position, so that the two semi-annular flanges 2 can be simultaneously contacted with the fixture block 10, the fixture block 10 serves as a positioning structure for limiting the flanges to rotate along the circumferential direction, the two semi-annular flanges 2 which are butted to form the flanges can be simultaneously clamped, and therefore, the flanges have a good positioning effect, and the limiting opening is formed at the position, so that the rigidity of the semi-annular flanges 2 can be prevented from being excessively weakened.
In some alternative embodiments, in the above-mentioned rotor and stator assembling structure, the outer wall of the front end of the stator casing 1 has a front connecting edge;
the outer wall of the rear end of the front-stage mounting casing 8 is provided with a front-stage mounting edge; the preceding stage installation limit passes through bolted connection with preceding connection limit.
In some optional embodiments, in the above rotor and stator assembling structure, the front-stage mounting edge and the front connecting edge axially clamp the fixture block 10, so as to prevent the fixture block 10 from coming off from the limiting opening and the positioning opening.
In some alternative embodiments, in the above rotor and stator assembling structure, the front connecting edge has a folded edge; the folded edge covers the fixture block 10, and the fixture block 10 is pressed tightly, so that the fixture block 10 is further prevented from being separated from the limiting opening and the positioning opening.
In some alternative embodiments, in the above-described rotor and stator assembling structure, the outer wall of the rear end of the stator case 1 has a rear connecting edge;
the outer wall of the front end of the rear-stage mounting casing 9 is provided with a rear-stage mounting edge; the rear-stage mounting edge is connected with the rear connecting edge through a bolt.
In another aspect, a rotor-stator structure assembly method is provided, including:
two semi-annular edge rings 2 and two semi-annular stator inner rings 3 are separated;
placing a semi-annular stator inner ring 3 between a front-stage rotor blade 5 and a rear-stage rotor blade 6, and butting the two to form a stator inner ring, wherein the stator inner ring is sleeved on a rotor drum barrel 7; the two semi-annular edge rings 2 are mutually butted to form an edge ring; the front end of the edge ring is clamped into the annular positioning groove;
the fixture block 10 is clamped into the limiting opening and the positioning opening;
sleeving the stator casing 1 on the periphery of the rear-stage rotor blade 6, and moving the stator casing along the axial direction towards the front-stage rotor blade 5 to enable the rear end of the edge ring to be clamped into the annular limiting groove;
the front connecting edge is bolted to the front-stage mounting edge, so that the front end of the stator case 1 is connected to the rear end of the front-stage mounting case 8, and the rear connecting edge is bolted to the rear-stage mounting edge, so that the rear end of the stator case 1 is connected to the front end of the rear-stage mounting case 9.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (6)
1. A rotor-stator assembly structure, comprising:
the stator casing (1) is provided with an annular limiting groove on the inner wall;
the two semi-annular edge rings (2) are arranged on the inner side of the stator casing (1) and are butted with each other to form the edge rings; one end of the edge ring is clamped into the annular limiting groove;
the two semi-annular stator inner rings (3) are mutually butted to form a stator inner ring; each semi-annular stator inner ring (3) is correspondingly arranged in one semi-annular edge ring (2);
the stator blades (4) are arranged between the semi-annular edge ring (2) and the semi-annular stator inner ring corresponding to the semi-annular edge ring (2) in a circumferential direction, the blade tips of the stator blades (4) are formed on the inner wall of the corresponding semi-annular edge ring (2), and the blade roots are formed on the outer wall of the corresponding semi-annular stator inner ring (3);
wherein, the first and the second end of the pipe are connected with each other,
each stator blade (4) is positioned between the preceding-stage rotor blade (5) and the subsequent-stage rotor blade (6);
the stator inner ring is sleeved on a rotor drum barrel (7) between the preceding-stage rotor blade (5) and the rear-stage rotor blade (6);
the front end of the stator casing (1) is connected with the rear end of the front-stage mounting casing (8), and the rear end of the stator casing is connected with the front end of the rear-stage mounting casing (9); the rear end of the front-stage mounting casing (8) is provided with an annular positioning groove; one end of the flange ring, which is back to the annular limiting groove, is clamped into the annular positioning groove;
one end of one semi-annular edge ring (2) back to the annular limiting groove is provided with a limiting opening;
the rear end of the front-stage mounting casing (8) is provided with a positioning port;
the rotor-stator assembly structure further includes:
the clamping block (10) is clamped into the limiting opening and the positioning opening so as to prevent the edge ring from rotating along the circumferential direction;
the limiting opening is positioned at the butt joint part of the two semi-annular edge rings (2).
2. The rotor-stator assembly structure according to claim 1,
the outer wall of the front end of the stator casing (1) is provided with a front connecting edge;
the outer wall of the rear end of the front-stage mounting casing (8) is provided with a front-stage mounting edge; the front stage mounting edge is connected with the front connecting edge through a bolt.
3. The rotor-stator assembly structure according to claim 2,
the forestage mounting edge and the front connecting edge axially clamp the clamping block (10).
4. The rotor-stator assembly structure according to claim 3,
the front connecting edge is provided with a folded edge; the folded edge covers the fixture block (10) and presses the fixture block (10).
5. The rotor-stator assembling structure according to claim 1,
the outer wall of the rear end of the stator casing (1) is provided with a rear connecting edge;
the outer wall of the front end of the rear-stage mounting casing (9) is provided with a rear-stage mounting edge; the rear-stage mounting edge is connected with the rear connecting edge through a bolt.
6. A method of assembling a rotor-stator structure, comprising:
two semi-annular edge rings (2) and two semi-annular stator inner rings (3) are separated;
placing a semi-annular stator inner ring (3) between a preceding-stage rotor blade (5) and a subsequent-stage rotor blade (6), and butting to form a stator inner ring, wherein the stator inner ring is sleeved on a rotor drum barrel (7); the two semi-annular edge rings (2) are mutually butted to form an edge ring; the front end of the edge ring is clamped into the annular positioning groove;
clamping the fixture block (10) into the limiting opening and the positioning opening;
sleeving a stator casing (1) on the periphery of the rear-stage rotor blade (6), and moving the stator casing towards the front-stage rotor blade (5) along the axial direction to clamp the rear end of the edge ring into the annular limiting groove;
the front connecting edge is connected with the front stage mounting edge through bolts, and the rear connecting edge is connected with the rear stage mounting edge through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505444.6A CN111664124B (en) | 2020-06-05 | 2020-06-05 | Stator structure, rotor and stator assembly structure with same and assembly method of rotor and stator assembly structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010505444.6A CN111664124B (en) | 2020-06-05 | 2020-06-05 | Stator structure, rotor and stator assembly structure with same and assembly method of rotor and stator assembly structure |
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| CN111664124A CN111664124A (en) | 2020-09-15 |
| CN111664124B true CN111664124B (en) | 2022-07-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112324710B (en) * | 2020-11-03 | 2022-03-04 | 中国航发沈阳发动机研究所 | Casing treatment structure and compressor thereof |
| CN113513374B (en) * | 2021-07-26 | 2022-10-21 | 中国船舶重工集团公司第七0三研究所 | Conveniently detachable compressor stationary blade ring of ship gas turbine and assembling method thereof |
| CN113898419A (en) * | 2021-10-10 | 2022-01-07 | 中国航发沈阳发动机研究所 | Air inlet casing structure and assembling method thereof |
| CN113914999B (en) * | 2021-12-14 | 2022-03-18 | 成都中科翼能科技有限公司 | Gas turbine compressor assembling method |
| CN115060136A (en) * | 2022-06-29 | 2022-09-16 | 中国航发动力股份有限公司 | Stator assembly for stator inner ring assembly size detection device and detection method |
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| CN105386797A (en) * | 2015-12-29 | 2016-03-09 | 中国航空工业集团公司沈阳发动机设计研究所 | Turbine stator structure |
| CN108223429A (en) * | 2017-09-30 | 2018-06-29 | 中国航发沈阳发动机研究所 | The fancase of the domain not fault wall |
| CN208295115U (en) * | 2018-06-06 | 2018-12-28 | 中国航发沈阳发动机研究所 | A kind of Split Casing sealing structure |
| CN108999652A (en) * | 2018-07-11 | 2018-12-14 | 中国航发沈阳发动机研究所 | A kind of Split Casing and stator blade circumferential direction chocking construction |
| CN110439630A (en) * | 2019-08-12 | 2019-11-12 | 航天材料及工艺研究所 | A kind of Varying-thickness composite material stator blade and its forming method |
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