CN113202568A - Engine stator structure and assembling method thereof - Google Patents
Engine stator structure and assembling method thereof Download PDFInfo
- Publication number
- CN113202568A CN113202568A CN202110666338.0A CN202110666338A CN113202568A CN 113202568 A CN113202568 A CN 113202568A CN 202110666338 A CN202110666338 A CN 202110666338A CN 113202568 A CN113202568 A CN 113202568A
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- stator
- journal
- inner ring
- engine
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000000903 blocking effect Effects 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
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
- 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
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
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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
Abstract
The application belongs to engine stator structural design field, concretely relates to engine stator structure, include: the stator casing is provided with a plurality of upper journal mounting holes distributed along the circumferential direction and is formed by butting two parts cut along the axial direction; the stator inner ring is provided with an annular groove on the outer wall and is formed by butting two parts which are cut along the axial direction; each part of the stator inner ring is correspondingly positioned on the inner side of one part of the stator casing, one end of each part of the stator inner ring is a plugging end, and the two plugging ends are oppositely butted; a plurality of upper journal bushings, each upper journal bushing disposed in a corresponding one of the upper journal mounting holes; a plurality of lower journal bushings divided into two groups; each group of lower journal bushings are correspondingly arranged in an annular groove on one part of the stator inner ring, are mutually spliced and abut against the corresponding plugging ends; and a plurality of stator blades, wherein the upper journal of each stator blade is correspondingly inserted into one upper journal bushing, and the lower journal is correspondingly inserted into one lower journal bushing. Furthermore, a method for assembling an engine stator structure is disclosed.
Description
Technical Field
The application belongs to the technical field of engine stator structure design, and particularly relates to an engine stator structure and an assembling method thereof.
Background
Stator structure in engine includes the stator machine casket, is located the inboard stator inner ring of stator machine casket, along a plurality of stator blades of circumference distribution between stator machine casket, stator inner ring, and wherein, the last journal of each stator blade corresponds installs in a plurality of last journal mounting holes of seting up on the stator machine casket, and the lower journal corresponds installs in a plurality of lower journal mounting holes of seting up on the stator inner ring.
In order to realize the assembly of the stator structure, the stator casing is designed to be a horizontal split structure, namely the stator casing is designed to be formed by two parts which are cut along the axial direction in a butt joint mode, each part is in a semi-annular shape, the stator inner ring is designed to be formed by two parts which are in butt joint along the axial direction, and the two parts are divided into a plurality of ring segments, and the technical scheme has the following defects:
1) two parts of the stator inner ring, which are butted along the axial direction, are composed of a plurality of ring segments, so that the stator inner ring has more component parts, a complex structure, large accumulated machining errors and difficult assembly and disassembly, and large assembly stress can exist;
2) the stator inner ring is connected between the ring sections of the two parts which are butted along the axial direction through axial bolts or radial pins, a large structural design space is needed in the axial direction and the radial direction, precious space resources are occupied, and the requirement of reducing the weight of the current engine is not met.
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 for the purpose of 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 without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an engine stator structure and method of assembly thereof that overcomes or mitigates at least one aspect of the technical disadvantages known to exist.
The technical scheme of the application is as follows:
one aspect provides an engine stator structure, comprising:
the stator casing is provided with a plurality of upper journal mounting holes distributed along the circumferential direction and is formed by butting two parts cut along the axial direction;
the stator inner ring is provided with an annular groove on the outer wall and is formed by butting two parts which are cut along the axial direction; each part of the stator inner ring is correspondingly positioned on the inner side of one part of the stator casing, one end of each part of the stator inner ring is a plugging end, and the two plugging ends are oppositely butted;
a plurality of upper journal bushings, each upper journal bushing disposed in a corresponding one of the upper journal mounting holes;
a plurality of lower journal bushings divided into two groups; each group of lower journal bushings are correspondingly arranged in an annular groove on one part of the stator inner ring, are mutually spliced and abut against the corresponding plugging ends;
and a plurality of stator blades, wherein the upper journal of each stator blade is correspondingly inserted into one upper journal bushing, and the lower journal is correspondingly inserted into one lower journal bushing.
According to at least one embodiment of the present application, in the above-mentioned structure of the stator casing of the engine, two parts of the stator casing are connected by a connecting edge.
According to at least one embodiment of the present application, in the above-described engine stator casing structure, one side edge of each lower journal bushing in the circumferential direction of the stator inner ring is parallel to the axial direction of the corresponding stator blade, and the other side edge is parallel to the axial direction of the adjacent stator blade.
According to at least one embodiment of the present application, in the above-mentioned structure of the stator casing of the engine, an end of each part of the stator inner ring opposite to the closed end thereof is an open end;
a positioning groove extending along the circumferential direction is formed in one side wall of the annular groove;
three outer walls in each group of lower journal bushings are provided with positioning bulges;
each positioning protrusion is clamped in the positioning groove.
According to at least one embodiment of the present application, the above-mentioned engine stator casing structure further includes:
one end of each angle block is connected to the outer wall of the stator casing, and the other end of each angle block is provided with a bayonet; each bayonet is correspondingly clamped on one upper shaft neck so as to position the deflection angle of the corresponding stator blade.
According to at least one embodiment of the application, in the structure of the engine stator casing, each bayonet is in plane contact with the corresponding upper journal.
According to at least one embodiment of the present application, in the above-mentioned engine stator casing structure, one end of each angle block, which faces away from the corresponding upper journal, has a connection hole;
the engine stator cartridge receiver structure still includes:
each connecting pin is correspondingly arranged in one connecting hole, and the corresponding angle block is connected to the outer wall of the stator casing;
each angle block is in clearance fit with the corresponding upper shaft neck and the connecting pin along the axial direction of the angle block.
In another aspect, an assembly method of an engine stator casing structure is provided, for implementing assembly of any one of the engine stator casings, including:
assembling each upper journal and the upper journal bushing thereof into the corresponding upper journal mounting hole, and correspondingly mounting each angle block and the connecting pin;
fitting each lower journal bushing onto a corresponding lower journal;
rotating two parts of the stator inner ring along the circumferential direction, so that each group of lower journal bushings sequentially slide into the annular groove from the open end of the corresponding part of the stator inner ring to the plugging direction and abut against the plugging end of the corresponding part, and each positioning protrusion is clamped in the positioning groove;
and connecting the connecting edges to enable the two parts of the stator casing to be in butt joint, and enabling the two parts of the stator inner ring to be in butt joint.
Drawings
FIG. 1 is a schematic illustration of a cross-section of an engine stator structure provided by an embodiment of the present application;
FIG. 2 is a schematic illustration of another cross-section of an engine stator structure provided by an embodiment of the present application;
FIG. 3 is a partial enlarged view of a stator inner ring provided in an embodiment of the present application;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
FIG. 5 is a sectional view taken along line B-B of FIG. 3;
FIG. 6 is a partial enlarged view of a lower journal bushing provided in accordance with an embodiment of the present application;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;
FIG. 8 is a cross-sectional view taken along line D-D of FIG. 6;
wherein:
1-a stator case; 2-stator inner ring; 3-upper journal bushing; 4-a lower journal bushing; 5-stator blades; 6-angle block; 7-connecting pin.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
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, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
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 the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the 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 context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; 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 this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 8.
An engine stator structure comprising:
the stator casing 1 is provided with a plurality of upper journal mounting holes distributed along the circumferential direction and is formed by butting two parts cut along the axial direction;
the stator inner ring 2 is provided with an annular groove on the outer wall and is formed by butting two parts which are cut along the axial direction; each part of the stator inner ring 2 is correspondingly positioned on the inner side of one part of the stator casing 1, one end of each part of the stator inner ring 2 is a plugging end, the end position plugs the section of the annular groove, and the two plugging ends are oppositely butted;
a plurality of upper journal bushings 3, each upper journal bushing 3 being disposed in a corresponding one of the upper journal mounting holes;
a plurality of lower journal bushings 4, divided into two groups; each group of lower journal bushings 4 is correspondingly arranged in an annular groove on one part of the stator inner ring 2, and is spliced with each other and abutted against the corresponding plugging end;
a plurality of stator blades 5, an upper journal of each stator blade 5 is inserted into one upper journal bushing 3, and a lower journal is inserted into one lower journal bushing 4.
With respect to the stator structure of the engine disclosed in the above embodiments, it will be understood by those skilled in the art that the following steps may be performed when assembling:
assembling each upper journal and its upper journal bushing 3 into the corresponding upper journal mounting hole;
fitting each lower journal bushing 4 onto the corresponding lower journal;
mounting each lower journal bushing 4 into an annular groove of a corresponding portion of the stator inner ring 2;
the two parts of the stator casing 1 are butted, the two parts of the stator inner ring 2 are synchronously butted in the process, and the stator structure is assembled.
For the engine stator structure disclosed in the above embodiment, it can be understood by those skilled in the art that the stator casing 1 and the stator inner ring 2 are designed to be horizontally split structures, so that the number of components is small, the processing, the assembly and the disassembly are easy, and the processing and the assembly errors can be effectively controlled.
With respect to the stator structure of the engine disclosed in the above embodiment, it will be understood by those skilled in the art that each set of lower journal bushings 4 is disposed in an annular groove of a corresponding portion of the stator inner ring 2, so that the axial and radial positioning of each lower journal bushing 4 can be effectively achieved without additional other components.
With regard to the engine stator structure disclosed in the above embodiment, it can be further understood by those skilled in the art that one end of each part of the stator inner ring 2 is designed to be a blocking end, and when one part of the blocking end rotates towards the corresponding group of lower journal bushings 4, the blocking end of the corresponding group of lower journal bushings blocks, and when the other part of the blocking end rotates towards the corresponding group of lower journal bushings 4, the blocking end of the other part of the lower journal bushings blocks against the blocking end of the corresponding group of lower journal bushings, so as to achieve reliable positioning of the two parts of the stator inner ring 2 along the circumferential direction, and based on the same principle, reliable positioning of each lower journal bushing 4 along the circumferential direction is achieved, that is, the lower journal bushings 4 and the stator inner ring 2 are interlocked and fixed in the circumferential direction.
With respect to the engine stator structure disclosed in the above embodiments, it will also be understood by those skilled in the art that, in order to reduce the assembly stress on each lower journal, a small clearance fit between each lower journal bushing 4 and the corresponding lower journal may be designed, and the lower journal bushing 4 is in clearance fit with the stator inner ring 2 in the radial direction.
In some alternative embodiments, in the above-mentioned structure of the stator casing of the engine, two parts of the stator casing 1 are connected by a connecting edge.
In some alternative embodiments, in the above-described engine stator casing structure, one side edge of each lower journal bushing 4 in the circumferential direction of the stator inner ring 2 is parallel to the axial direction of the corresponding stator blade 5, and the other side edge is parallel to the axial direction of the adjacent stator blade 5; the circumferential outer edges of the lower journal bushings 4 at the butt joint positions of the two parts of the stator inner ring 2 are parallel to the butt joint surfaces of the two parts of the stator inner ring 2, so that the lower journal bushings 4 can be sequentially assembled on the corresponding lower journals, and the assembly stress of the lower journals of the stator blades 5 is reduced.
In some alternative embodiments, in the above-mentioned engine stator casing structure, one end of each part of the stator inner ring 2 opposite to the blocked end thereof is an open end, the end is located at a position where the cross section of the annular groove is open, and the two open ends are butted oppositely, and a small gap may exist between the two open ends and is not in direct contact, so as to reduce the assembling stress on each lower journal;
a positioning groove extending along the circumferential direction is formed in one side wall of the annular groove;
three outer walls of each group of lower journal bushings 4 are provided with positioning bulges;
each positioning protrusion is clamped in the positioning groove.
For the engine stator structure disclosed in the above embodiment, it can be further understood by those skilled in the art that three points may determine a circle, each group of the lower journal bushings 4 is designed to be clamped in the positioning grooves on one side wall of the annular groove by three positioning protrusions, the corresponding group of the lower journal bushings 4 can be hooped on a circle, a small gap exists between two parts of the stator inner ring 2, under the condition of incomplete contact, mutual interference between the corresponding two parts of the lower journal bushings 4 and the stator blades 5 thereof does not occur, in addition, the corresponding parts of the stator inner ring 2 can be hung on the corresponding stator blades 5 by the respective positioning protrusions, so as to prevent the corresponding parts from being separated, and facilitate assembly, and the distribution positions of the respective positioning protrusions can be determined by related technical personnel according to specific practice when applying the technical solution disclosed in this application.
To the engine stator structure disclosed in the above embodiment, it can be further understood by those skilled in the art that one end of the two parts of the stator inner ring 2 is designed to be an open end, when the engine stator structure is assembled, the two parts of the stator inner ring 2 can be rotated in the circumferential direction, so that each group of lower journal bushings 4 slides into the annular groove from the open end of the corresponding part of the stator inner ring 2 to the plugging direction, and abut against the plugging end of the corresponding part, and each positioning protrusion is clamped in the positioning groove, which is convenient and fast.
In some optional embodiments, the above-mentioned engine stator casing structure further includes:
one end of each angle block 6 is connected to the outer wall of the stator casing 1, and the other end of each angle block is provided with a bayonet; each bayonet is correspondingly clamped on one upper shaft neck so as to position the deflection angle of the corresponding stator blade 5, and the stator blade 5 can be positioned at different deflection angle positions by adopting different angle blocks 6.
In some optional embodiments, in the above-mentioned engine stator casing structure, each bayonet is in planar contact with the corresponding upper journal so as to limit the deflection of the corresponding stator blade, and thus, reliable positioning of the deflection angle of the corresponding stator blade 5 is achieved.
In some alternative embodiments, in the above-mentioned engine stator casing structure, an end of each angle block 6 facing away from the corresponding upper journal has a connection hole;
the engine stator cartridge receiver structure still includes:
each connecting pin 7 is correspondingly arranged in one connecting hole, and the corresponding angle block 6 is connected to the outer wall of the stator casing 1;
each angle block 6 is in clearance fit with the corresponding upper journal and the connecting pin 7 along the axial direction, so that the angle blocks 6 have a moving allowance along the axial direction in the axial direction, and the assembly is convenient.
In another aspect, an assembly method of an engine stator casing structure is provided, for implementing assembly of any one of the engine stator casings, including:
assembling each upper journal and the upper journal bushing 3 thereof into the corresponding upper journal mounting hole, and correspondingly mounting each angle block 6 and the connecting pin 7;
fitting each lower journal bushing 4 onto the corresponding lower journal;
rotating two parts of the stator inner ring 2 along the circumferential direction, so that each group of lower journal bushings 4 slides into the annular groove from the open end of the corresponding part of the stator inner ring 2 to the plugging direction and abuts against the plugging end of the corresponding part, and each positioning protrusion is clamped in the positioning groove;
the connecting edges are connected, so that the two parts of the stator casing 1 are butted, and the two parts of the stator inner ring 2 are butted.
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 (8)
1. An engine stator structure, comprising:
the stator casing (1) is provided with a plurality of upper journal mounting holes distributed along the circumferential direction and is formed by butting two parts cut along the axial direction;
the stator inner ring (2) is provided with an annular groove on the outer wall and is formed by butting two parts which are cut along the axial direction; each part of the stator inner ring (2) is correspondingly positioned on the inner side of one part of the stator casing (1), one end of each part of the stator inner ring (2) is a plugging end, and the two plugging ends are oppositely butted;
a plurality of upper journal bushings (3), each of said upper journal bushings (3) being disposed in a corresponding one of said upper journal mounting holes;
a plurality of lower journal bushings (4) divided into two groups; each group of lower journal bushings (4) is correspondingly arranged in an annular groove on one part of the stator inner ring (2), and are mutually spliced and abutted against corresponding plugging ends;
a plurality of stator blades (5), wherein the upper journal of each stator blade (5) is correspondingly inserted into one upper journal bushing (3), and the lower journal is correspondingly inserted into one lower journal bushing (4).
2. The engine stator structure according to claim 1,
the two parts of the stator casing (1) are connected through a connecting edge.
3. The engine stator structure according to claim 1,
one side edge of each lower journal bushing (4) along the circumferential direction of the stator inner ring (2) is parallel to the axial direction of the corresponding stator blade (5), and the other side edge is parallel to the axial direction of the adjacent stator blade (5).
4. The engine stator structure according to claim 1,
one end of each part of the stator inner ring (2) opposite to the plugging end is an open end;
a positioning groove extending along the circumferential direction is formed in one side wall of the annular groove;
three outer walls of each set of the lower journal bushings (4) have positioning projections;
each of the positioning protrusions is caught in the positioning groove.
5. The engine stator structure according to claim 1,
further comprising:
one end of each angle block (6) is connected to the outer wall of the stator casing (1), and the other end of each angle block is provided with a bayonet; each bayonet is correspondingly clamped on one upper shaft neck so as to position the deflection angle of the corresponding stator blade (5).
6. The engine stator case structure according to claim 5,
each bayonet is in plane contact with the corresponding upper journal.
7. The engine stator case structure according to claim 5,
one end of each angle block (6) back to the corresponding upper shaft neck is provided with a connecting hole;
the engine stator cartridge receiver structure still includes:
the connecting pins (7) are arranged in one connecting hole correspondingly, and the corresponding angle block (6) is connected to the outer wall of the stator casing (1);
each angle block (6) is in clearance fit with the corresponding upper journal and the connecting pin (7) along the axial direction of the angle block.
8. An assembling method of an engine stator casing structure, which is used for realizing the assembling of the engine stator casing of any one of claims 1 to 7, and comprises the following steps:
assembling each upper journal and an upper journal bushing (3) thereof into a corresponding upper journal mounting hole, and correspondingly mounting each angle block (6) and each connecting pin (7);
fitting each lower journal bushing (4) onto the corresponding lower journal;
rotating two parts of the stator inner ring (2) along the circumferential direction, so that each group of lower journal bushings (4) slides into the annular groove from the open end of the corresponding part of the stator inner ring (2) to the plugging direction and abuts against the plugging end of the corresponding part, and each positioning protrusion is clamped in the positioning groove;
the connecting edges are connected, so that two parts of the stator casing (1) are butted, and two parts of the stator inner ring (2) are butted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666338.0A CN113202568A (en) | 2021-06-16 | 2021-06-16 | Engine stator structure and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110666338.0A CN113202568A (en) | 2021-06-16 | 2021-06-16 | Engine stator structure and assembling method thereof |
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| CN113202568A true CN113202568A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110666338.0A Pending CN113202568A (en) | 2021-06-16 | 2021-06-16 | Engine stator structure and assembling method thereof |
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| CN (1) | CN113202568A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498727A (en) * | 1968-01-24 | 1970-03-03 | Westinghouse Electric Corp | Blade ring support |
| WO2011018413A1 (en) * | 2009-08-08 | 2011-02-17 | Alstom Technology Ltd | Turbine diaphragms |
| CN103375180A (en) * | 2012-04-26 | 2013-10-30 | 阿尔斯通技术有限公司 | Turbine diaphragm construction |
| US20140044526A1 (en) * | 2012-08-07 | 2014-02-13 | MTU Aero Engines AG | Stationary blade ring, assembly method and turbomachine |
| CN105443444A (en) * | 2015-12-25 | 2016-03-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Inner ring structure of adjustable stator blade of engine fan |
| US20180112555A1 (en) * | 2016-10-26 | 2018-04-26 | MTU Aero Engines AG | Damped guide vane bearing arrangement |
| CN109356671A (en) * | 2018-12-16 | 2019-02-19 | 中国航发沈阳发动机研究所 | A kind of adjustable stator blade angle adjusting mechanism |
| CN111539067A (en) * | 2020-04-16 | 2020-08-14 | 中国航发沈阳发动机研究所 | Horizontal split casing containing structure |
-
2021
- 2021-06-16 CN CN202110666338.0A patent/CN113202568A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498727A (en) * | 1968-01-24 | 1970-03-03 | Westinghouse Electric Corp | Blade ring support |
| WO2011018413A1 (en) * | 2009-08-08 | 2011-02-17 | Alstom Technology Ltd | Turbine diaphragms |
| CN103375180A (en) * | 2012-04-26 | 2013-10-30 | 阿尔斯通技术有限公司 | Turbine diaphragm construction |
| US20140044526A1 (en) * | 2012-08-07 | 2014-02-13 | MTU Aero Engines AG | Stationary blade ring, assembly method and turbomachine |
| CN105443444A (en) * | 2015-12-25 | 2016-03-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Inner ring structure of adjustable stator blade of engine fan |
| US20180112555A1 (en) * | 2016-10-26 | 2018-04-26 | MTU Aero Engines AG | Damped guide vane bearing arrangement |
| CN109356671A (en) * | 2018-12-16 | 2019-02-19 | 中国航发沈阳发动机研究所 | A kind of adjustable stator blade angle adjusting mechanism |
| CN111539067A (en) * | 2020-04-16 | 2020-08-14 | 中国航发沈阳发动机研究所 | Horizontal split casing containing structure |
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