CN115638434A - Nozzle assembly, fuel injection system and gas turbine - Google Patents
Nozzle assembly, fuel injection system and gas turbine Download PDFInfo
- Publication number
- CN115638434A CN115638434A CN202110820944.3A CN202110820944A CN115638434A CN 115638434 A CN115638434 A CN 115638434A CN 202110820944 A CN202110820944 A CN 202110820944A CN 115638434 A CN115638434 A CN 115638434A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- positioning
- assembly
- cap
- joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 238000002347 injection Methods 0.000 title claims abstract description 17
- 239000007924 injection Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 39
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention provides a nozzle assembly, a fuel injection system and a gas turbine. The nozzle assembly includes: a nozzle; the joint assembly comprises a nozzle joint and a positioning cap, and the positioning cap is detachably connected with the nozzle joint for positioning; one of the nozzle and the positioning cap is provided with a positioning piece, and the other is provided with a positioning track; one of the nozzle and the nozzle joint is provided with a groove, and the other one is provided with a positioning key; the locating cap is located at the periphery of the nozzle and the nozzle adapter. The invention has the advantages of replacing the existing method for generating pressure through thread fastening, avoiding the phenomenon of thread high-temperature adhesion, reducing the workload of disassembly and reassembly and realizing self-locking.
Description
Technical Field
The invention relates to a connection structure of a fuel nozzle joint of a gas turbine engine, in particular to a nozzle assembly, a fuel injection system and a gas turbine.
Background
The nozzle of a typical gas turbine engine is connected to a fuel line via a fitting to inject fuel into a combustion chamber for efficient combustion. The conventional structure of the nozzle 100 and the adapter 200 is shown in fig. 1, a sealing gasket 300 is disposed between the contact surfaces of the adapter 200 and the top of the nozzle 100, and the adapter 200 and the nozzle 100 are fixedly connected by a thread and the sealing gasket 300 is compressed to achieve sealing. The sealing, positional accuracy, etc. of the nozzle 100 and the joint 200 are required to be high. The screw connection between the joint 200 and the nozzle 100 is liable to cause high-temperature adhesion after the engine is operated at high speed, which affects the disassembly and assembly. The existing joint 200 and the nozzle 100 cannot realize self-locking, and the self-locking is realized by means of a fuse and the like after assembly, so that the operation is complex, and the efficiency is low during disassembly, assembly and maintenance. The joint 200 is parallel to the axial direction of the engine, the height of a fuel pipeline matched with the joint is the minimum, but the joint 200 is required to be higher in the orientation angle when the fuel pipeline is connected. The joint 200 is connected to the nozzle 100 by a screw, the orientation of the integral joint changes with the change of the tightening action during installation, and the requirement for the assembly operation is high due to the coupling of a plurality of factors such as the angle of the joint 200, the pressing force of the gasket 300, and the tightening torque of the nozzle 100 and the joint 200, and the assembly consistency is poor. Meanwhile, when the sealing gasket 300 is screwed down, the sealing gasket is sheared and distorted under the combined action of normal pressing force and circumferential friction force, so that sealing failure is caused, and the safety of the gas turbine engine is seriously influenced. Therefore, a structural form which has a simple structure, is convenient to operate, has better assembling performance and can meet the requirements of sealing and position precision at the same time needs to be developed.
Disclosure of Invention
It is an object of the present invention to provide a nozzle assembly.
It is another object of the present invention to provide a fuel injection system.
It is another object of the present invention to provide a gas turbine.
A nozzle assembly according to an aspect of the invention, comprising: a nozzle; the joint assembly comprises a nozzle joint and a positioning cap, and the positioning cap is detachably connected with the nozzle joint for positioning; one of the nozzle and the positioning cap is provided with a positioning piece, the other one is provided with a positioning track, and the relative rotation of the positioning cap and the nozzle can drive the positioning piece to move to a positioning position on the positioning track so as to fix the nozzle and the positioning cap; one of the nozzle and the nozzle joint is provided with a groove, the other is provided with a positioning key, and the groove is matched with the positioning key so as to fix the nozzle and the nozzle joint; the locating cap is located at the periphery of the nozzle and the nozzle adapter.
In one or more embodiments of the nozzle assembly, the positioning member includes a pin protruding from an outer wall of the nozzle, the positioning rail includes a spiral rail disposed on a wall surface of the positioning cap, one end of the spiral rail has a positioning hole, and the positioning position is located in the positioning hole.
In one or more embodiments of the nozzle assembly, the spiral track includes a body and a bent portion bent from one end of the body, and the bent portion has the positioning hole.
In one or more embodiments of the nozzle assembly, the sidewall of the nozzle adapter has a protruding detent key, and the sidewall of the nozzle has a corresponding groove.
In one or more embodiments of the nozzle assembly, the inner wall of the retaining cap has a retaining step and the sidewall of the nozzle adapter has a mounting flange.
In one or more embodiments of the nozzle assembly, a stop is disposed between the positioning step and the mounting flange.
In one or more embodiments of the nozzle assembly, the nozzle has a sealing step inside, and a sealing gasket is disposed between the sealing step and the bottom of the nozzle joint.
In one or more embodiments of the nozzle assembly, the nozzle assembly further comprises a resilient compression assembly mounted to the mounting flange of the adapter assembly and secured by the retaining cap.
In one or more embodiments of the nozzle assembly, the elastic pressing assembly includes a clamp spring, a gland and an elastic member, the inner wall of the positioning cap has a mounting groove, the elastic member is placed between the gland and the mounting flange, and the clamp spring is placed on the gland and clamped into the mounting groove.
In one or more embodiments of the nozzle assembly, the elastic member is a wave spring, and the wave spring and the snap spring are standard members.
According to another aspect of the invention, the fuel injection system comprises the nozzle assembly and the fuel pipeline, the nozzle assembly is detachably connected with the fuel pipeline, and the nozzle joint is parallel to the axial direction.
According to another aspect of the invention, the gas turbine comprises the fuel injection system and the combustion chamber, wherein the fuel is injected into the combustion chamber through the fuel injection system to generate combustion reaction.
The invention has the beneficial effects that:
the cooperation of the positioning piece, the positioning rail and the positioning position replaces the existing method for generating pressure through thread fastening, thereby avoiding the phenomenon of thread high-temperature adhesion and reducing the workload of disassembly and reassembly. The nozzle and the positioning cap are fixed by matching the positioning piece with the positioning position, self-locking can be directly realized, compared with the prior art, self-locking by means of a fuse and the like after assembly is not needed, operation is fast, the process of making a fuse is omitted, and the disassembly and assembly efficiency is improved. The nozzle joint can be accurately positioned through the positioning key, can be installed in place at one time, does not need to adjust the angular direction of the nozzle joint and screw up the torque, can also ensure the consistency of multiple structural installation, saves the process of beating the torque, and improves the installation efficiency and the quality.
Drawings
The above and other features, nature, and advantages of the present invention will become more apparent from the following description of the embodiments and the accompanying drawings in which like reference characters refer to the same parts throughout the drawings, it being noted that the drawings are exemplary only, are not drawn to scale, and should not be taken as limiting the scope of the invention as it is actually claimed, wherein:
FIG. 1 is a schematic view of a conventional nozzle-to-nozzle joint connection structure;
FIG. 2 is a schematic illustration of a fuel injection system according to one embodiment;
FIG. 3 is a schematic view of an embodiment of a nozzle assembly;
FIG. 4 is a cross-sectional view of an embodiment of a nozzle assembly;
FIG. 5 is a schematic view of an embodiment of a nozzle;
FIG. 6 is a schematic view of an embodiment of a joint assembly;
FIG. 7 is an exploded view of the structure of one embodiment of a joint assembly;
FIG. 8 is a cross-sectional view of an embodiment of a retaining cap;
FIG. 9 is a schematic view of an embodiment of a retaining cap;
FIG. 10 is a schematic view of an embodiment of a nozzle adapter;
fig. 11 is a schematic diagram showing a partial structure of a fuel injection system according to an embodiment.
Reference numerals:
100-nozzle, 200-joint, 300-sealing gasket;
400-nozzle assembly, 500-fuel line;
1-nozzle, 11-positioning piece, 12-groove;
2-joint component, 21-nozzle joint, 211-positioning key, 212-mounting flange, 22-snap spring, 23-gland, 24-elastic piece, 241-wave spring, 25-baffle, 26-positioning cap, 261-positioning track, 2611-body, 2612-bending part, 262-positioning position, 2622-positioning hole, 263-mounting groove, 264-anti-slip surface and 265-positioning step;
and 3-a sealing gasket.
Detailed Description
Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.
In the description that follows, an orientation or positional relationship indicated by "inner", "outer", "upper", "lower", "bottom", or other orientation terms is based on the orientation or positional relationship shown in the drawings, and is for convenience only to facilitate description of the present invention and to simplify description, but does not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Also, the present application uses specific words to describe embodiments of the application. Reference to "one embodiment" or "an embodiment" means that a feature, structure, or characteristic described in connection with at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some of the features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
The gas turbine, for example a turbofan aircraft engine, comprises a fan, after air flow enters from the fan, a part of the air flow passes through a booster stage and a high-pressure compressor, enters a combustion chamber to perform combustion reaction with fuel oil, high-temperature fuel gas is output to a high-pressure turbine, and the fuel oil is injected into the combustion chamber through a fuel oil injection system to perform combustion reaction. It is to be understood that the fuel injection system described in the following embodiments is not limited to use in aircraft engines, but may be used in land based gas turbines, marine gas turbines, and the like.
Referring to fig. 2 in conjunction with fig. 11, in one embodiment, an example of a specific structure of a fuel injection system may include a nozzle assembly 400 and a fuel line 500, the nozzle assembly 400 is detachably connected to the fuel line 500, and fuel is delivered to the nozzle assembly 400 connected thereto through the fuel line 500 and is injected into a combustion chamber through the nozzle assembly 400 to perform a combustion reaction. The nozzle 1 of the nozzle assembly 400 is connected to the adapter assembly 2, as shown in fig. 11, and the nozzle adapter 21 of the adapter assembly 2 is installed in a direction parallel to the axial direction, so that the height of the matched fuel manifold is minimized, the space is saved, and the pipeline arrangement is convenient.
Referring to fig. 3 in conjunction with fig. 4, 5, and 8, in one embodiment, an example of a specific structure of the nozzle assembly 400 may be a nozzle assembly including a nozzle 1 and a joint assembly 2. The connector assembly 2 comprises a nozzle connector 21 and a positioning cap 26, wherein the positioning cap 26 is detachably connected with the nozzle connector 21 for positioning. One of the nozzle 1 and the positioning cap 26 has a positioning member 11, and the other has a positioning track 261, and the relative rotation between the positioning cap 26 and the nozzle 1 can drive the positioning member 11 to move to a positioning position 262 on the positioning track 261, so as to fix the nozzle 1 and the positioning cap 26; one of the nozzle 1 and the nozzle joint 21 has a groove 12, and the other has a positioning key 211, and the groove 12 is engaged with the positioning key 211 to fix the nozzle 1 and the nozzle joint 21. The positioning cap 26 is located at the periphery of the nozzle 1 and the nozzle adapter 21. The cooperation of the positioning member 11 with the positioning rail 261 and the positioning position 262 replaces the existing method for generating pressure through screw fastening, thereby avoiding the phenomenon of high-temperature adhesion of the screw threads and reducing the workload of disassembly and reassembly. Nozzle 1 and locating cap 26 are fixed with the cooperation of locating piece 11 and locating position 262, can directly realize the auto-lock, compare in prior art, need not to assemble back and then through means auto-lock such as going up the fuse, the operation is swift, saves the process of beating the insurance, improves dismouting efficiency. In addition, a threaded tightening structure is not needed, the orientation of the nozzle joint 21 is accurately positioned through the positioning key 211, the nozzle joint can be installed in place at one time, the installation orientation of the nozzle joint can be ensured to be parallel to the axial direction without adjusting the angular direction of the joint and tightening torque, the installation consistency of a plurality of structures can be ensured, and the installation efficiency and the quality are improved.
Referring to fig. 4 in conjunction with fig. 5, 8 and 9, in an embodiment, an example of a specific structure of the positioning member 11 may include a pin protruding from an outer wall of the nozzle 1, and an example of a specific structure of the positioning track 261 may include a spiral track disposed on an inner wall surface of the positioning cap 26, one end of the spiral track has a positioning hole, and the positioning position 262 is located at the positioning hole 2622. Adopt buckle formula structure, get rid of original threaded connection structure, realize installation, location, auto-lock through the cooperation of pin and spiral track, locating hole, the self-locking effect is strengthened in the locating hole is arranged in to the pin, makes the difficult emergence of being connected of position cap 26 and nozzle 1 not hard up.
Referring to fig. 8 in conjunction with fig. 9, in another embodiment, an example of a specific structure of the spiral track may be that the spiral track includes a body 2611 and a bending portion 2612 bent from one end of the body, and the bending portion 2612 has the positioning hole 2622. The positioning holes 2622 are arranged on the bending portions 2612, so that the self-locking structure is firmer, the self-locking effect is better, the pins can be clamped on the bending portions even if the pins are separated from the positioning holes, and the self-locking cannot fail.
Referring to fig. 4 in combination with fig. 5 and 10, in one embodiment, an example of a specific structure position of the positioning key 211 and the groove 12 may be that the sidewall of the nozzle adapter 21 has a protruding positioning key 211, and the sidewall of the nozzle 1 has a corresponding groove 12. The structure is simple, the processing is easy, the decoupling of the tightening torque and the joint angle is realized, and the consistency of the assembly is improved.
Referring to fig. 6 in combination with fig. 8 and 10, in one embodiment, an example of a specific structure of the positioning cap 26 and the nozzle adapter 21 may be that an inner wall of the positioning cap 26 has a positioning step 265 and a side wall of the nozzle adapter 21 has a mounting flange 212. This arrangement enables quick positional mounting of the nozzle nipple 21 with the positioning cap 26.
Referring to fig. 7 in conjunction with fig. 8 and 10, in another embodiment, a specific structure example of the positioning step 265 and the mounting flange 212 may further include a blocking piece 25 disposed between the positioning step 265 and the mounting flange 212. The setting of separation blade 25 is completely cut off the mounting flange 212 of nozzle joint 21 and the location step 265 and the nozzle top of location cap, avoids direct contact, prevents to take place to wear or crush, protects core part, increase of service life practices thrift the cost, the later maintenance of being convenient for simultaneously.
Referring to fig. 4 in conjunction with fig. 5 and 10, in one embodiment, a specific structure of the nozzle 1 and the nozzle joint 21 may be exemplified by that the nozzle 1 has a sealing step 13 inside, and a sealing gasket 3 is arranged between the sealing step and the bottom 213 of the nozzle joint 21 to realize the sealing of the nozzle assembly 400.
Referring to fig. 4 in conjunction with fig. 10, in one embodiment, an example of a specific structure of the nozzle assembly 400 may be that the nozzle assembly 400 further has an elastic pressing assembly 234, and the elastic pressing assembly 234 is mounted on the mounting flange 212 of the joint assembly 2 and fixed by the positioning cap 26. The resilient force of the resilient compression assembly 234 exerts a downward compression force on the nozzle adapter 21 to compress the gasket 3, enhancing the sealing effect and also enhancing the locking engagement of the adapter assembly 2 with the nozzle 1. The nozzle joint 21 and the positioning cap 26 are separately arranged and the elastic pressing component 234 is used, so that the nozzle joint 21 only moves in the normal direction, the positioning cap 26 moves in the circumferential direction to drive the elastic pressing component 234 to press the nozzle joint 21, the sealing gasket 3 only bears the pressing force in the normal direction, and the situation that the sealing gasket 3 is distorted and damaged and sealing fails due to the action force generated by the normal force and the circumferential movement in the installation process is avoided.
Referring to fig. 6 in conjunction with fig. 7 and 8, in another embodiment, an example of a specific structure of the elastic pressing assembly may include a clamp spring 22, a pressing cover 23, and an elastic member 24, an inner wall of the positioning cap 26 has a mounting groove 263, the elastic member 24 is placed between the pressing cover 23 and the mounting flange 212, and the clamp spring 22 is placed on the pressing cover 23 and clamped into the mounting groove 263. The fixing and pressing functions of the elastic pressing component 234 are realized through the matching of the clamp spring 22 and the mounting groove 263, so that the assembly and disassembly are convenient and rapid, and the working efficiency is improved. The compression amount and the sealing effect of the sealing gasket 3 are determined by the pressing force of the elastic member 24, and can be realized by different elastic member 24 designs according to different pressing force requirements.
Referring to fig. 7, in an alternative embodiment, an example of a specific structure of the elastic pressing component 234 may also be that the elastic member 24 is a wave spring 241, and the wave spring 241 and the snap spring 22 are standard members, which have good interchangeability.
Referring to FIG. 9, in an alternative embodiment, an example of a specific structure of the positioning cap 26 may also be that the outer surface of the positioning cap 26 has a non-slip surface 264 for easy handling.
Fig. 6 is an example of the joint assembly 2 shown in fig. 8, in the assembly, the positioning cap 26 is used as a base, the baffle 25 is firstly placed on the positioning step 265 in the positioning cap 26, the nozzle joint 21 is placed on the baffle 25, the wave spring 241 is placed between the gland 23 and the nozzle joint 21, the clamp spring 22 is used for pressing the gland 23, the clamp spring 22 is matched with the mounting groove 263 in the positioning cap 26, and the nozzle joint 21 can rotate circumferentially after the assembly.
Fig. 4 is combined with the example of the nozzle assembly 400 shown in fig. 8, when assembling, the positioning key 211 on the nozzle adapter 21 in the adapter assembly 2 is aligned with the groove 12 on the nozzle 1, the positioning cap 26 is rotated, the positioning piece 11 and the positioning rail 261 are matched and slide, when assembling in place, the positioning piece 11 reaches the positioning hole 262, the snap spring 22 is installed in the installation groove 263, self-locking is formed under the pressing force of the wave spring 241, and the sealing gasket 3 is pressed to form sealing, the compression amount and the sealing effect of the sealing gasket 3 are determined by the pressing force of the wave spring 241, and different pressing forces can be realized by different size designs. When disassembling, the positioning cap 26 is pressed first to separate the positioning piece 11 from the positioning hole 2622, and then the positioning piece is rotated to disassemble.
In summary, the beneficial effects of the nozzle assembly, the fuel injection system and the gas turbine described in the above embodiments include, but are not limited to, one or a combination of the following:
1. the cooperation of the positioning piece, the positioning track and the positioning position replaces the existing method for generating pressure through thread fastening, thereby avoiding the phenomenon of thread high-temperature adhesion and reducing the workload of disassembly and reassembly. The nozzle and the positioning cap are fixed by matching the positioning piece with the positioning position, self-locking can be directly realized, compared with the prior art, self-locking by means of a fuse and the like after assembly is not needed, operation is fast, the process of making a fuse is omitted, and the disassembly and assembly efficiency is improved. The nozzle joint can be accurately positioned by the positioning key, can be installed in place at one time, does not need to adjust the angular direction of the joint and screw up the torque, can ensure the installation consistency of a plurality of structures, and improves the installation efficiency and the quality.
2. Adopt buckle formula structure, get rid of original threaded connection structure, realize installation, location, auto-lock through the cooperation of pin and spiral track, locating hole, the pin is arranged in the locating hole and is strengthened the auto-lock effect, makes the difficult emergence of being connected of position cap and nozzle not hard up.
3. The positioning hole is arranged at the bent part, so that the self-locking structure is firmer, the self-locking effect is better, the pin can be clamped at the bent part even if the pin is separated from the positioning hole, and the self-locking cannot fail.
4. And a sealing gasket is arranged to realize the sealing of the nozzle assembly.
5. The elastic force of the elastic pressing component generates downward pressing force on the nozzle joint to press the sealing gasket tightly, so that the sealing effect is enhanced, and meanwhile, the locking fit of the joint component and the nozzle is enhanced. The nozzle joint and the positioning cap are arranged separately and the elastic pressing assembly is used, so that the nozzle joint only moves in a radial direction, the positioning cap moves in a circumferential direction to drive the elastic pressing assembly to press the nozzle joint, the sealing gasket only bears pressing force in a normal direction, and the situation that the sealing gasket is distorted, damaged and failed due to the action force generated by normal force and circumferential movement in the installation process is avoided.
6. The fixing and pressing functions of the elastic pressing assembly are realized through the matching of the clamp spring and the mounting groove, so that the assembly and disassembly are convenient and rapid, and the working efficiency is improved. The compression amount and the sealing effect of the sealing gasket are determined by the pressing force of the elastic piece, and the sealing gasket can be designed through different elastic pieces according to different pressing force requirements.
7. The wave spring, the snap spring and the like are all standard parts and have good interchangeability.
8. The positioning cap is provided with an anti-skid surface, so that the operation is convenient.
Although the present invention has been disclosed in terms of the preferred embodiments, it is not intended to limit the invention, and variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are within the protection scope defined by the claims of the present invention, unless the technical spirit of the present invention departs from the content of the technical solution of the present invention.
Claims (12)
1. A nozzle assembly, comprising:
a nozzle; and
the joint assembly comprises a nozzle joint and a positioning cap, and the positioning cap is detachably connected with the nozzle joint for positioning;
wherein,
one of the nozzle and the positioning cap is provided with a positioning piece, the other one is provided with a positioning track, and the relative rotation of the positioning cap and the nozzle can drive the positioning piece to move to a positioning position on the positioning track so as to fix the nozzle and the positioning cap;
one of the nozzle and the nozzle joint is provided with a groove, the other is provided with a positioning key, and the groove is matched with the positioning key so as to fix the nozzle and the nozzle joint;
the locating cap is located at the periphery of the nozzle and the nozzle adapter.
2. The nozzle assembly of claim 1, wherein the positioning member comprises a pin protruding from an outer wall of the nozzle, the positioning track comprises a spiral track disposed on a wall surface of the positioning cap, one end of the spiral track has a positioning hole, and the positioning position is located in the positioning hole.
3. The nozzle assembly of claim 2, wherein the helical track comprises a body and a bend bent from one end of the body, the bend having the locating hole.
4. The nozzle assembly of claim 1, wherein the sidewall of the nozzle adapter has a protruding alignment key and the sidewall of the nozzle has a corresponding groove.
5. The nozzle assembly of claim 1, wherein the inner wall of the retaining cap has a retaining step and the sidewall of the nozzle adapter has a mounting flange.
6. The nozzle assembly of claim 5, wherein a stop is disposed between the retention step and the mounting flange.
7. The nozzle assembly of claim 1, wherein the nozzle has a sealing step on an interior thereof, and a sealing gasket is disposed between the sealing step and a bottom of the nozzle adapter.
8. The nozzle assembly of claim 7 further comprising a resilient hold-down assembly mounted on the mounting flange of the adapter assembly and secured by the retaining cap.
9. The nozzle assembly of claim 8, wherein the resilient compression assembly comprises a snap spring, a gland, and a resilient member, the inner wall of the positioning cap has a mounting groove, the resilient member is placed between the gland and the mounting flange, and the snap spring is placed over the gland and snapped into the mounting groove.
10. The nozzle assembly of claim 9, wherein the resilient member is a wave spring, and the wave spring and the snap spring are standard components.
11. A fuel injection system comprising a nozzle assembly as claimed in any one of claims 1 to 10 and a fuel line, the nozzle assembly being removably connected to the fuel line, the nozzle connection being parallel to the axial direction.
12. A gas turbine engine comprising a fuel injection system according to claim 11 and a combustion chamber, fuel being injected into the combustion chamber through the fuel injection system for a combustion reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110820944.3A CN115638434B (en) | 2021-07-20 | 2021-07-20 | Nozzle assembly, fuel injection system and gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110820944.3A CN115638434B (en) | 2021-07-20 | 2021-07-20 | Nozzle assembly, fuel injection system and gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115638434A true CN115638434A (en) | 2023-01-24 |
| CN115638434B CN115638434B (en) | 2024-10-11 |
Family
ID=84939629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110820944.3A Active CN115638434B (en) | 2021-07-20 | 2021-07-20 | Nozzle assembly, fuel injection system and gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115638434B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201143657Y (en) * | 2008-01-14 | 2008-11-05 | 宝山钢铁股份有限公司 | Nozzle extracting tool of device for descaling with high-pressure water |
| CN103953317A (en) * | 2014-04-14 | 2014-07-30 | 宝鸡市赛孚石油机械有限公司 | High-reliability hydraulic ejector |
| CN204358775U (en) * | 2014-12-15 | 2015-05-27 | 中国燃气涡轮研究院 | A kind of compact-type built-in fuel manifold |
| KR102151377B1 (en) * | 2020-03-17 | 2020-09-02 | 홍재의 | Digital fog nozzle device |
| CN211611413U (en) * | 2020-01-13 | 2020-10-02 | 广东振兴消防设备有限公司 | External centrifugal rotary nozzle of gas fire-extinguishing equipment |
| CN212764562U (en) * | 2020-08-11 | 2021-03-23 | 深圳迈思特模具配件有限公司 | Nozzle convenient to install hot runner mold |
| CN213155626U (en) * | 2020-05-11 | 2021-05-11 | 佛山市法恩洁具有限公司 | But moist wall device of quick assembly disassembly's intelligent closestool and intelligent closestool |
| CN112781072A (en) * | 2021-01-29 | 2021-05-11 | 安徽应流航空科技有限公司 | Main fuel nozzle atomization structure |
-
2021
- 2021-07-20 CN CN202110820944.3A patent/CN115638434B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201143657Y (en) * | 2008-01-14 | 2008-11-05 | 宝山钢铁股份有限公司 | Nozzle extracting tool of device for descaling with high-pressure water |
| CN103953317A (en) * | 2014-04-14 | 2014-07-30 | 宝鸡市赛孚石油机械有限公司 | High-reliability hydraulic ejector |
| CN204358775U (en) * | 2014-12-15 | 2015-05-27 | 中国燃气涡轮研究院 | A kind of compact-type built-in fuel manifold |
| CN211611413U (en) * | 2020-01-13 | 2020-10-02 | 广东振兴消防设备有限公司 | External centrifugal rotary nozzle of gas fire-extinguishing equipment |
| KR102151377B1 (en) * | 2020-03-17 | 2020-09-02 | 홍재의 | Digital fog nozzle device |
| CN213155626U (en) * | 2020-05-11 | 2021-05-11 | 佛山市法恩洁具有限公司 | But moist wall device of quick assembly disassembly's intelligent closestool and intelligent closestool |
| CN212764562U (en) * | 2020-08-11 | 2021-03-23 | 深圳迈思特模具配件有限公司 | Nozzle convenient to install hot runner mold |
| CN112781072A (en) * | 2021-01-29 | 2021-05-11 | 安徽应流航空科技有限公司 | Main fuel nozzle atomization structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115638434B (en) | 2024-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10196975B2 (en) | Turboprop engine with compressor turbine shroud | |
| JP4869042B2 (en) | Method and apparatus for assembling a gas turbine engine | |
| US9188062B2 (en) | Gas turbine | |
| US6216442B1 (en) | Supports for connecting a flow sleeve and a liner in a gas turbine combustor | |
| US10330020B2 (en) | Turbojet with a discharge duct | |
| US9506403B2 (en) | Fastener | |
| CN111042878B (en) | Auxiliary force transmission casing structure of gas turbine | |
| US10876430B2 (en) | Mount assembly | |
| CN102597428B (en) | Exhaust gas turbocharger, vehicle and the method for assembling exhaust gas turbocharger | |
| US20150345793A1 (en) | Fuel nozzle assembly with removable components | |
| US20190072001A1 (en) | Turbocharger | |
| US9341374B2 (en) | Fuel nozzle assembly with removable components | |
| EP2660523B1 (en) | System and method for assembling an end cover of a combustor | |
| US10895226B2 (en) | Turbocharger | |
| CN115638434A (en) | Nozzle assembly, fuel injection system and gas turbine | |
| JP4542542B2 (en) | Fuel injection module | |
| CN215863521U (en) | Ceramic matrix composite flame tube connecting device, aircraft engine and aircraft | |
| US20130129501A1 (en) | Stud retention | |
| CN108291673B (en) | Device for limiting the loosening of a nut in a turbine engine | |
| CN215863524U (en) | Oil inlet structure of fuel nozzle and fuel nozzle comprising same | |
| CN103758589A (en) | Graphite seal device for turbocharger for gasoline engine | |
| CN220227471U (en) | Anti-loosening device for connection structure of aero-engine | |
| CN217992227U (en) | Casing butt joint guiding device | |
| CN114763805B (en) | Aeroengine, aeroengine air inlet cone and fastening suite thereof | |
| JP2004286010A (en) | Fuel injection device for internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |