CN117515593A - Premixed fuel injector and engine - Google Patents
Premixed fuel injector and engine Download PDFInfo
- Publication number
- CN117515593A CN117515593A CN202311739130.2A CN202311739130A CN117515593A CN 117515593 A CN117515593 A CN 117515593A CN 202311739130 A CN202311739130 A CN 202311739130A CN 117515593 A CN117515593 A CN 117515593A
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- pipe section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention is suitable for the technical field of fuel injection, and provides a premixed fuel injector and an engine. The injector comprises an inner-layer fuel pipe and an outer-layer fuel pipe which are coaxially sleeved, the axial direction of the inner-layer fuel pipe is a first direction, the inner-layer fuel pipe comprises a first pipe section and a second pipe section which are distributed along the first direction, a pipe internal channel of the first pipe section is a first fuel flow field, and a gap channel between the first pipe section and the outer-layer fuel pipe is a second fuel flow field; the second pipe section comprises at least one pipe section with gradually increased inner diameter and at least one pipe section with gradually reduced inner diameter, and the second pipe section is provided with a plurality of convection holes, part of which are positioned on the feeding path of the first fuel flow field, and part of which are positioned on the feeding path of the second fuel flow field. By limiting the inner diameter of the second pipe section, the invention is provided with the convection holes on the feeding path of the first fuel flow field and the feeding path of the second fuel flow field so as to mix the fuel in the first fuel flow field and the second fuel flow field.
Description
Technical Field
The invention belongs to the technical field of fuel injection, and particularly relates to a premixed fuel injector and an engine.
Background
The fuel injection is located in the combustion chamber of a scramjet engine in which fuel may be injected from a wall, a support plate or a fuel injection rod. The supersonic incoming flow within the engine creates significant drag for the intrusive configuration, and thus the fuel injector configuration currently in use is a non-intrusive configuration.
In the related art, in the field of dual-fuel injection of a scramjet engine, an injection mode of multiple injectors is adopted, namely, each injector contains an injection mode of connecting multiple injectors of one fuel in parallel, two fuels are not premixed, ignition is difficult, and combustion stability and combustion efficiency are required to be enhanced.
Disclosure of Invention
The invention aims to provide a premixed fuel injector and an engine, which solve the technical problems in the prior art.
The invention is realized in the following way:
in a first aspect, the present application provides a premix fuel injector, including an inner fuel pipe and an outer fuel pipe coaxially sleeved, an axial direction of the inner fuel pipe being a first direction, the inner fuel pipe including a first pipe section and a second pipe section distributed along the first direction, an in-pipe passage of the first pipe section being a first fuel flow field, a gap passage between the first pipe section and the outer fuel pipe being a second fuel flow field; the second pipe section comprises at least one pipe section with gradually increased inner diameter and at least one pipe section with gradually reduced inner diameter, and the second pipe section is provided with a plurality of convection holes, part of which are positioned on the feeding path of the first fuel flow field, and part of which are positioned on the feeding path of the second fuel flow field.
In a second aspect, the present application also provides an engine comprising a premix fuel injector as provided in the first aspect.
The beneficial effects of the invention are as follows:
in the invention, two fuels can be simultaneously introduced by coaxially sleeving the inner fuel pipe and the outer fuel pipe; setting a convection hole on the second pipe section by limiting the inner diameter of the second pipe section, wherein the convection hole is positioned on a feeding path of the first fuel flow field, so that fuel in the first fuel flow field can pass through the convection hole to enter the outer layer fuel pipe and be mixed with fuel in the outer layer fuel pipe; the part of the convection hole is positioned on the feeding path of the second fuel flow field, so that the fuel in the second fuel flow field can pass through the convection hole and enter the inner fuel pipe to be mixed with the fuel in the inner fuel pipe; the fuels in the first fuel flow field and the second fuel flow field are mixed twice, so that the blending degree of the two fuels is enhanced, the ignition difficulty of the fuels is reduced, and the combustion stability and the combustion efficiency of the fuels are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the embodiments of the present invention or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall construction of an injector provided in some embodiments of the present application;
FIG. 2 is a cross-sectional view I of an injector provided in some embodiments of the present application;
FIG. 3 is a second cross-sectional view of an injector provided in some embodiments of the present application;
FIG. 4 is a schematic illustration of the structure of an inner fuel tube provided in some embodiments of the present application;
FIG. 5 is a schematic illustration of the structure of an outer fuel tube provided in some embodiments of the present application;
FIG. 6 is a cross-sectional view of an outer fuel tube provided in some embodiments of the present application;
in the figure:
100-inner fuel pipe, 110-first pipe section, 111-disturbance hole, 120-second pipe section, 121-convection hole, 200-outer fuel pipe, 210-third pipe section, 220-fourth pipe section, 230-discharge port, 300-first fuel flow field, 400-second fuel flow field, 500-deflector.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the invention.
The embodiment of the application provides a premix fuel injector, referring to fig. 1 to 6, the injector includes an inner fuel pipe 100 and an outer fuel pipe 200 coaxially sleeved, the outer fuel pipe 200 is sleeved outside the inner fuel pipe 100, and the axial direction of the inner fuel pipe 100 or the outer fuel pipe 200 is set as a first direction. Wherein the inner fuel pipe 100 includes a first pipe segment 110 and a second pipe segment 120 distributed along a first direction. The in-pipe passage of the first pipe section 110 is used as a first fuel flow field 300 for introducing a fuel. The clearance channel between the first pipe segment 110 and the outer fuel pipe 200 is used as a second fuel flow field 400 for introducing another fuel. With this arrangement, two kinds of fuel can be simultaneously introduced into the injector at a time, and the number of injectors provided in the combustion chamber can be reduced. The first direction is with reference to the dashed arrow direction shown in fig. 1.
The second pipe section 120 of the inner fuel pipe 100 includes at least one pipe section having an inner diameter gradually increasing and at least one pipe section having an inner diameter gradually decreasing such that the pipe wall of the second pipe section 120 has a rough posture, a part of the pipe wall of the second pipe section 120 being located on the feed path of the first fuel basin 300, and a part of the pipe wall being located on the feed path of the second fuel basin 400. And a plurality of convection holes 121 are provided on the second pipe section 120, so that a part of the convection holes 121 are located on the feeding path of the first fuel flow field 300 and a part of the convection holes 121 are located on the feeding path of the second fuel flow field 400.
In the case of feeding toward the first fuel basin 300 and the second fuel basin 400, the fuel is contained in the first fuel basin 300 and the second fuel basin 400 by the inner wall of the fuel basin so that the fuel located therein is restrained to flow in a certain range; after the fuel passes through the fuel flow field, the fuel can still move forward under the action of inertia, and the flow range of the fuel moving forward is the feeding path of the fuel.
After the fuel flows out of the first fuel basin 300, since a portion of the convection hole 121 is located on the feeding path of the first fuel basin 300, a portion of the fuel flows out of the inner fuel pipe 100 and into the outer fuel pipe 200 through the convection hole 121 to be mixed with the fuel flowing out of the second fuel basin 400. After the fuel flows out of the second fuel basin 400, since a portion of the convection hole 121 is located on the feeding path of the second fuel basin 400, a portion of the fuel flows into the inner fuel pipe 100 through the convection hole 121 to be mixed with the fuel flowing out of the first fuel basin 300. The fuel introduced from the first fuel flow field 300 and the second fuel flow field 400 is mixed twice, so that the mixing degree of the two fuels is improved, the mixed fuel is more favorable for ignition, and the combustion stability is better. The pre-mixed fuel has more uniform intermolecular distribution, reduces the possibility of time gap of two fuel combustion temperature peaks, and is beneficial to the stable combustion of the scramjet engine.
In particular implementations, the port of the first pipe segment 110 of the inner fuel pipe 100 serves as an inner feed port, the first fuel bowl 300 communicates with the inner feed port, the port of the outer fuel pipe 200 proximate to the inner feed port serves as an outer feed port, and the second fuel bowl 400 communicates with the outer feed port. First fuel field 300 is typically fed with a low laminar flame speed fuel, i.e., a non-flammable fuel such as liquid ammonia. The second fuel basin 400 is typically fed with a fuel having a relatively high laminar flame speed, i.e. a combustible fuel, such as methane, hydrogen, etc. in a liquid state. The two fuels flow in the same direction, so that the control of the fuels is easier. The port of the second pipe section 120 of the inner fuel pipe 100 is used as an inner layer discharge port 230, the port of the outer fuel pipe 200 close to the inner layer discharge port 230 is used as an outer layer discharge port 230, and the premixed fuel flows out from the inner layer discharge port 230 and the outer layer discharge port 230. Non-combustible fuel is introduced from inner fuel tube 100, combustible fuel is introduced from outer fuel tube 200, and the ignition device ignites the non-combustible fuel from the combustible fuel, widening the flammability limit of the fuel.
In some embodiments of the present application, the second tube segment 120 may have a plurality of tube segments with progressively smaller inner diameters and a plurality of tube segments with progressively larger inner diameters. With this arrangement, the non-combustible fuel in the inner fuel pipe 100 and the combustible fuel outside the inner fuel pipe 100 are mixed a plurality of times, and the mixing degree of the fuel is increased. Illustratively, the inner diameter of the second tube segment 120 is first tapered such that the convection orifice 121 is located in the feed path of the first fuel basin 300; the inner diameter of the second pipe section 120 then gradually increases such that the convection hole 121 is located in the feed path of the second fuel basin 400. The inner diameter of the second pipe segment 120 is then decreased again and then increased, and the change is repeated, so that the combustible fuel and the non-combustible fuel can be mixed multiple times, and the premixing degree is improved. The number of changes in the inner diameter of the second pipe segment 120 may be set according to the actual fuel blending ratio required.
In other preferred embodiments of the present application, the second pipe section 120 includes a first sub-pipe section having an inner diameter gradually increasing and a second sub-pipe section having an inner diameter gradually decreasing along the direction from the first pipe section 110 to the second pipe section 120, and the inner diameter of the second pipe section 120 gradually increases and then gradually decreases, and the port of the second pipe section 120 having the inner diameter reduced serves as the inner discharge port 230. The second pipe section 120 with the increased inner diameter is provided in a protruded state, and the convection hole 121 at the position is located on the feeding path of the second fuel flow field 400, and as shown in fig. 3, the combustible fuel flows out of the second fuel flow field 400, enters the inside of the inner fuel pipe 100 through the convection hole 121, and is mixed with the non-combustible fuel in the inner fuel pipe 100, thereby completing primary premixing. The inner wall of the second pipe section 120 having the reduced inner diameter gradually approaches toward the position of the axial line thereof, and the convection hole 121 at the position is located on the feed path of the first fuel flow field 300, and after the non-combustible fuel flows out of the first fuel flow field 300, the non-combustible fuel enters the outside of the inner fuel pipe 100 and the inside of the outer fuel pipe 200 through the convection hole 121 to be mixed with the combustible fuel. In addition, the combustible fuel mixed with the non-combustible fuel through the convection hole 121 at the first time can pass through the convection hole 121 at the front in the forward conveying process, and enter the feeding path of the second fuel flow field 400 again, so as to mix with the combustible fuel in the flow field, and further deepen the mixing degree.
With this arrangement, since the inner diameter of the second pipe section 120 is increased first, after the non-combustible fuel flows into the second pipe section 120 from the first pipe section 110, the non-combustible fuel is diffused along the edge due to the increase of the inner diameter of the second pipe section 120, so that the non-combustible fuel can enter the feeding path of the second fuel flow field 400 through the other convection holes 121 to be mixed with the combustible fuel. Other convection holes 121 refer to convection holes 121 that are not in either or most of the in-hole space of the convection holes 121 are not in the feed path of the first and second fuel flow fields 300, 400. The convection holes 121 on the second pipe section 120 are fully utilized to reduce obstruction on the fuel flow path to reduce the flow resistance of the fuel.
The second pipe section 120 is gradually increased and then gradually decreased in inner diameter, and thus the port of the second pipe section 120 having the decreased inner diameter is smaller than the inner diameter of the first pipe section 110 because a portion of the convection hole 121 is located on the feed path of the first fuel flow field 300. However, the port inner diameter of the second pipe section 120 cannot be excessively small in consideration of the flow resistance of the fuel, and the port inner diameter of the second pipe section 120 is generally about half of the inner diameter of the first pipe section 110.
To mate with the inner fuel tube 100, the outer fuel tube 200 also includes third and fourth tube segments 210, 220 distributed along the first direction. Wherein the fourth pipe section 220 is sleeved outside the second pipe section 120, and the third pipe section 210 is sleeved outside the first pipe section 110. During the premixing of the combustible fuel and the non-combustible fuel, a portion of the space within the second pipe segment 120, and a gap passage between the second pipe segment 120 and the fourth pipe segment 220 serve as flow passages during the premixing.
In some embodiments of the present application, in the feeding direction of the fuel, in the case that the inner diameter of the second pipe section 120 is gradually increased and then reduced, in order to enhance the fluidity of the fuel in the premixing process, the inner diameter variation trend of the fourth pipe section 220 is set to be opposite to the inner diameter variation trend of the second pipe section 120, so that the flow section of the fuel is firstly narrowed and then widened, the fuel increases the flow velocity through the flow channel with the narrowed flow section, and then enters the flow channel with the widened flow section, so that the fuel is diffused, the premixing degree is improved, and the blending effect is enhanced. In addition, with this arrangement, the flow rates of the non-combustible fuel and the combustible fuel can be balanced to a certain extent in the process of passing through the flow passage with the variable dimension of the flow section, and the flow rates of the two fuels can be balanced.
In other embodiments of the present application, in the case that the inner diameter of the second pipe section 120 gradually increases and then decreases along the feeding direction of the fuel, the inner diameter of the fourth pipe section 220 is the same as the inner diameter of the second pipe section 120, and the inner diameter of the fourth pipe section 220 is also gradually increased and then gradually decreased, and the fourth pipe section 220 includes a third sub-pipe section having a gradually increased inner diameter and a fourth sub-pipe section having a gradually decreased inner diameter. With this arrangement, the cross-section of the interstitial passages between the fourth segment 220 and the second segment 120 can be kept as uniform as possible, providing sufficient premixing space for the two fuels. And because the area of the flow section is not changed greatly, the overall flow velocity of the fuel is not changed too much compared with the initial velocity entering the injector, thereby being beneficial to controlling the velocity of the fuel entering the combustion chamber and improving the control effect on the fuel.
In addition, with this arrangement, since the inner diameter of the discharge end of the fourth pipe section 220 is gradually reduced, the fuel discharged from the fourth pipe section 220 has a tendency to gather toward the axis thereof, and the fourth pipe section 220 is disposed coaxially with the second pipe section 120, and the fuel discharged from the second pipe section 120 is discharged in the direction of the axis thereof. The paths of the fuel ejected from the fourth pipe section 220 and the fuel ejected from the second pipe section 120 have overlapping portions. Referring to FIG. 3, the dashed arrows extending from the wall of the fourth pipe segment 220 represent the flow trend of the fuel ejected from the fourth pipe segment 220, with the portion of the fuel having a tendency to bunch up toward the center; the dashed arrows extending from the walls of the second pipe segment 120 represent the flow tendencies of the fuel ejected from the second pipe segment 120, with the fuel paths of the two flow tendencies overlapping, blending with each other during flow, again enhancing the blending between the combustible fuel and the non-combustible fuel.
Non-combustible fuel located within inner fuel tube 100 may be partially blended with combustible fuel through convection holes 121 during flow, or partially blended with combustible fuel through convection holes 121 near the inner wall of inner fuel tube 100. While the fuel around the axis of the inner fuel pipe 100 is less disturbed and can continue to flow in its original direction of flow until it exits the second pipe section 120 and then mixes with the fuel in the fourth pipe section 220, thereby blending all or a substantial portion of the fuel in the inner fuel pipe 100.
In some preferred embodiments of the present application, the rate of change of the inner diameter of the second tube segment 120 is similar to the rate of change of the inner diameter of an ellipsoidal or spherical structure, and the rate of change of the inner diameter of the fourth tube segment 220 is also similar to the rate of change of the inner diameter of an ellipsoidal or spherical structure. The inner wall of the pipe section is changed smoothly, so that the flow resistance possibly caused to the fuel in the flow process of the fuel is reduced. Illustratively, the ellipsoidal structure or two radial ends of the ellipsoidal structure are cut away to form the fourth pipe section 220 or the second pipe section 120, in which the inner diameter gradually increases and then gradually decreases, and the second pipe section 120 and the fourth pipe section 220 can be regarded as a sphere structure or a part of the ellipsoidal structure, as shown in fig. 4 and 5.
In some preferred embodiments, the fourth pipe segment 220 is located away from the outlet inner diameter of the third pipe segment 210, i.e., the outlet port of the fourth pipe segment 220, which has an inner diameter that is greater than the outer diameter of the second pipe segment 120, and the end of the second pipe segment 120 that is remote from the first pipe segment 110 is located within the fourth pipe segment 220, with the entirety of the second pipe segment 120 being located within the fourth pipe segment 220. The outer diameter of the second pipe section 120 refers to the pipe section outer diameter of all parts of the second pipe section 120, and the outlet inner diameter of the fourth pipe section 220 is larger than the outer diameter of the second pipe section 120, that is, it means that even the maximum outer diameter of the second pipe section 120 is smaller than the outlet inner diameter of the fourth pipe section 220.
If the inner diameter of the outlet of the fourth pipe section 220 is too small, part of the fuel collides with the pipe wall of the fourth pipe section 220 in the process of passing through the fourth pipe section 220, so that the flow resistance of the fuel is increased, and the injection of the fuel is not facilitated. Also, by increasing the inside diameter of the outlet of the fourth segment 220, the included angle of injection of the fuel from the fourth segment 220 may be reduced, thereby extending the path of intersection with the fuel from the second segment 120 to increase the degree of blending of the two fuels. The outlet inner diameter of the fourth pipe section 220 is larger than the outer diameter of the second pipe section 120, the fuel passing through the convection hole 121 of the second pipe section 120 is hardly contacted with the pipe wall of the fourth pipe section 220 in the process of ejecting the fourth pipe section 220, so that the flow speed of the part of fuel can be effectively reduced, while the speed of the fuel ejected from the second fuel flow field 400, which does not pass through the convection hole 121, is faster than the speed of the fuel passing through the convection hole 121, and the flow speed of the part of fuel is reduced due to the contact between the part of the fuel and the pipe wall of the fourth pipe section 220, so that the flow speed of the fuel is balanced.
Further preferably, the outlet inner diameter of the fourth pipe segment 220 is smaller than the inlet inner diameter of the fourth pipe segment 220, and in this structure, the restriction effect of the fourth pipe segment 220 on the fuel is improved, so that the fuel sprayed from the fourth pipe segment 220 can smoothly gather towards the middle and be mixed with the fuel sprayed from the second pipe segment 120.
In some embodiments of the present application, the outer diameter of the second pipe section 120 is set smaller than the inner diameter of the third pipe section 210, and a portion of the fuel ejected from the third pipe section 210 can not pass through the convection hole 121 and enter the second pipe section 120, and the portion of the fuel can be mixed with the fuel passing through the convection hole 121 from the second pipe, so that the flow resistance of the fuel ejected from the third pipe section 210 is reduced, and the fuel flow speed is stabilized as much as possible.
A baffle 500 is also provided within the injector, the baffle 500 being configured to increase the circumferential flow rate of the fuel, thereby increasing the blending of the fuel. Specifically, a plurality of baffles 500 are fixed on the inner sidewall of the third pipe section 210 or the outer sidewall of the first pipe section 110, the baffles 500 are spirally disposed around the axis of the third pipe section 210, and the plurality of baffles 500 are rotationally symmetrical around the axis of the third pipe section 210.
The configuration of baffle 500 increases the circumferential flow rate of combustible fuel located in second fuel basin 400. In the case that the baffle 500 is mounted on the inner sidewall of the third pipe section 210, as shown in fig. 2, 3, 5 and 6, the combustible fuel is acted by the baffle 500, so that the outer layer of the combustible fuel has a certain circumferential flow rate, which is beneficial to improving the blending degree of the fuel in the process of mixing the fuel with the fuel sprayed out of the second pipe section 120. In the case where the baffle 500 is installed on the outer side wall of the first pipe wall, the inner layer of the combustible fuel has a certain circumferential flow rate, which can enhance the blending degree of the two fuels in the case where it enters the second pipe section 120 to be mixed with the non-combustible fuel.
The baffle 500 may be disposed at the end of the third pipe section 210 and the first pipe section 110 near the inlet, or may be disposed in the middle thereof, or near the end of the outlet 230, or directly extend from the inlet to the outlet 230. In some embodiments of the present application, the end surface of the third pipe segment 210 connected to the fourth pipe segment 220, the end surface of the first pipe segment 110 connected to the second pipe segment 120, and the end surface of the baffle 500 near the fourth pipe segment 220 are disposed on the same plane, and as shown in fig. 3, the circumferential velocity of the fuel is changed, and then the fuel starts to be mixed with the non-flammable fuel, thereby fully utilizing the circumferential velocity of the fuel.
The outer layer fuel pipe 200 further comprises a discharge port 230, the discharge port 230 is connected with the fourth pipe section 220, the inner side wall of the discharge port 230 is an arc surface, and the inner diameter of the discharge port 230 is firstly reduced and then increased along the direction from the fourth pipe section 220 to the discharge port 230. The cambered surface structure is beneficial to reducing the flow resistance of the fuel. Under the condition that the convergence of the fuels towards the axial lead of the fourth pipe section 220 is not affected, the inner diameter of the discharge hole 230 is gradually increased, so that the injection included angle of the fuels sprayed from the fourth pipe section 220 can be increased, the mixing area of the two fuels is prolonged, and the blending degree is improved.
In some embodiments of the present application, the plurality of convection holes 121 provided in the second pipe section 120 are divided into a plurality of convection hole groups, and any one of the convection hole groups includes a plurality of convection holes 121 uniformly distributed along the circumferential direction of the second pipe section 120, and the plurality of convection hole groups are uniformly distributed along the first direction. The distribution density of the convection holes 121 on the second pipe section 120 is equalized, and the influence on the fuel flow resistance due to uneven distribution of the convection holes 121 is reduced, so that the two fuels are more uniformly mixed.
In some preferred embodiments, the circumferential side wall of the first pipe section 110 is provided with a plurality of turbulence holes 111, the plurality of turbulence holes 111 communicating with the inside and outside of the first pipe section 110, and the plurality of turbulence holes 111 are uniformly distributed along the circumferential direction of the first pipe section 110. The turbulence holes 111 may change the state of the fluid boundary layer at both sides of the first pipe section 110, primarily increasing the fuel blending degree at both sides of the first pipe section 110. The flow disruption holes 111 are generally triangular in configuration with one tip facing the incoming flow direction of the fuel to minimize the size of the flow disruption holes 111 and maintain the structural strength of the first tube segment 110 while maintaining a consistent degree of fuel mixing.
The embodiment of the application also provides an engine, which comprises the injector provided by any embodiment. The engine may be a scramjet engine, or may be another type of engine.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311739130.2A CN117515593B (en) | 2023-12-18 | 2023-12-18 | A premixed fuel injector and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311739130.2A CN117515593B (en) | 2023-12-18 | 2023-12-18 | A premixed fuel injector and engine |
Publications (2)
| Publication Number | Publication Date |
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| CN117515593A true CN117515593A (en) | 2024-02-06 |
| CN117515593B CN117515593B (en) | 2025-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311739130.2A Active CN117515593B (en) | 2023-12-18 | 2023-12-18 | A premixed fuel injector and engine |
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|---|---|---|---|---|
| US20060035183A1 (en) * | 2003-02-14 | 2006-02-16 | Richard Carroni | Mixer |
| US20140338339A1 (en) * | 2013-03-12 | 2014-11-20 | General Electric Company | System and method having multi-tube fuel nozzle with multiple fuel injectors |
| CN108870442A (en) * | 2017-05-12 | 2018-11-23 | 通用电气公司 | Dual fuel injector and the application method in gas turbine combustor |
| CN111810987A (en) * | 2020-08-13 | 2020-10-23 | 北京星际荣耀空间科技有限公司 | An injection unit structure and a two-component injector |
| CN115628464A (en) * | 2022-10-12 | 2023-01-20 | 哈尔滨工业大学 | A three-channel scramjet combustion chamber |
| CN117232009A (en) * | 2023-08-23 | 2023-12-15 | 西北工业大学 | A kind of gas turbine combustion chamber head injection unit structure |
-
2023
- 2023-12-18 CN CN202311739130.2A patent/CN117515593B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060035183A1 (en) * | 2003-02-14 | 2006-02-16 | Richard Carroni | Mixer |
| US20140338339A1 (en) * | 2013-03-12 | 2014-11-20 | General Electric Company | System and method having multi-tube fuel nozzle with multiple fuel injectors |
| CN108870442A (en) * | 2017-05-12 | 2018-11-23 | 通用电气公司 | Dual fuel injector and the application method in gas turbine combustor |
| CN111810987A (en) * | 2020-08-13 | 2020-10-23 | 北京星际荣耀空间科技有限公司 | An injection unit structure and a two-component injector |
| CN115628464A (en) * | 2022-10-12 | 2023-01-20 | 哈尔滨工业大学 | A three-channel scramjet combustion chamber |
| CN117232009A (en) * | 2023-08-23 | 2023-12-15 | 西北工业大学 | A kind of gas turbine combustion chamber head injection unit structure |
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| CN117515593B (en) | 2025-12-05 |
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