Aeroengine fuel atomization system

Abstract

The application discloses an aero-engine fuel atomization system and relates to the technical field of fuel atomization. The aero-engine fuel atomization system comprises an atomization channel, a controller and an atomization spray. The atomization spray head comprises a middle rotating block and a tail fixed block. The tail fixed block is an oil inlet pipe connected with an outer oil supply pipeline. The tail fixed block is rotatably installed with the middle rotating block through external threads. The inner part of the middle rotating block in communication with the tail fixed block is provided with an outer guide block. The middle rotating block is fixedly installed with a flow dividing plate at the output end. The atomization holes are arranged between the outer installation ring and the inner fixed ring. The atomization holes are a group of annular grooves. A plurality of groups of through holes are symmetrically distributed in the annular grooves to maintain the injection of the fuel atomization channel. The number of the through holes is designed according to the use requirements of the fuel injection. The outer installation ring is used to block the channel of the outer guide block. The discharge area is reduced through the atomization holes to increase the oil outlet pressure, so that a good atomization effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aero-engine, in particular to an aero-engine fuel atomization system. BACKGROUND

[0002] The aero-engine is a highly complex and precise thermal mechanical, as the heart of the aircraft, not only the power of the aircraft flight, but also an important driving force to promote the development of aviation industry, after more than 100 years of development, the aero-engine has developed into a mature product with high reliability, the aero-engine in use includes turbojet / turbofan engine, turbo shaft / turboprop engine, ramjet engine and piston engine and other types, not only as a variety of purposes of military and civilian aircraft, unmanned aerial vehicle and cruise missile power.

[0003] The combustion quality of the internal combustion engine directly affects a series of performance indicators such as power, economy and emission characteristics, and the quality of fuel atomization is the key link to determine the combustion condition. Good atomization effect is the premise of efficient combustion, which is of great significance to energy saving and purification.

[0004] However, in the process of uniformity of the fuel atomization system, at least the following technical problems are found:

[0005] In the existing fuel atomization injection mechanism, not only the consistency of fuel atomization is required, but also the injection amount of atomization is controlled correspondingly, so as to improve the fuel economy and thus improve the endurance under the same fuel condition. Therefore, we propose an aero-engine fuel atomization system. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the deficiencies in the prior art, the present application provides an aero-engine fuel atomization system to solve the technical problem of fuel atomization injection control.

[0008] (II) Technical scheme

[0009] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0010] The aero-engine fuel atomization system comprises an atomization passage, an atomization passage, a controller and an atomization spray, an atomization spray head, comprising a middle rotating block and a tail fixed block, the tail fixed block is an oil inlet pipe connected with the outside oil supply pipeline, the tail fixed block is rotatably installed outside by external thread The middle rotating block extrudes and atomizes the fuel in the tail fixed block to complete the atomization operation of the fuel, the part of the middle rotating block inside and the tail fixed block in communication is provided with an outer guide block, and the output end of the middle rotating block is fixedly installed with a flow dividing piece.

[0011] Preferably, the outer side of the middle rotating block is provided with external threads, a head sleeve is rotatably installed through the external threads, a rotating baffle is built-in the head sleeve, a connecting ring is provided on the outer side of the rotating baffle, and the head sleeve and the rotating baffle are clamped and fixed through the connecting ring, so as to facilitate the disassembly and installation of the rotating baffle.

[0012] Preferably, the shunt piece comprises an outer mounting ring and an inner fixing ring, the inner fixing ring is fixedly installed on the inner side of the middle rotating block, and an atomizing hole is arranged between the outer mounting ring and the inner fixing ring. The atomizing hole is a group of annular grooves, a plurality of groups of through holes are symmetrically distributed in the annular grooves for maintaining the injection of the fuel atomization channel, and the number of the through holes is designed according to the use requirements of fuel injection.

[0013] Preferably, the outer mounting ring is used to block the channel of the outer guide block, the reduced discharge area of the atomizing hole is used to increase the oil outlet pressure, and good atomization effect is achieved.

[0014] Preferably, the rotating baffle comprises a plate material, the plate material is a circular plate structure, an inner rotating block is arranged in the middle of the plate material, the middle part is shielded through the inner rotating block, the position of the outer mounting ring corresponds, and edge atomization is achieved.

[0015] Preferably, a plurality of groups of outer accommodation grooves are arranged in the middle of the plate material, the outer accommodation grooves are through groove structures, a part of the atomizing holes are shielded by corresponding the positions of the outer accommodation grooves and the atomizing holes, the number of the atomizing hole passages is controlled, and the atomizing fuel injection amount is regulated.

[0016] Preferably, an external gear is arranged on the outer side of the head sleeve, the external gear is an external gear, the head sleeve is rotated relative to the middle rotating block through an external driving gear, the atomizing hole six groups of through holes are divided into groups, groups, groups, groups and a plurality of gears to match the working conditions of the engine through the angle control, the proportion of fuel-air mixture is changed, the fuel economy is improved, the carbon deposition problem caused by repeated combustion is reduced, and the use condition of the engine is optimized.

[0017] Preferably, an electric control fuel injection assembly is arranged in the tail fixed block, the electric control fuel injection assembly comprises a push block, a connecting block and a push rod, the connecting block is arranged in the tail fixed block, the connecting block is a plurality of groups of distributed supports, and the distributed structure ensures good support while reducing the influence on the oil passage in the tail fixed block.

[0018] Preferably, a push rod is fixedly installed on one side of the connecting block, a push block is arranged at one end of the push rod, the push rod is a two-group telescopic control pull rod, an electromagnetic valve is arranged in the middle of the push rod, and the electromagnetic valve controls the telescopic control of the push rod through an external electromagnetic model.

[0019] The push block is a conical plug, the extension and retraction of the push rod is driven by the electromagnetic valve, the position of the push block in the outer guide block is adjusted, the size of the oil passage in the outer guide block is changed, the fuel injection pressure is changed, and the control of the atomized fuel injection amount is affected.

[0020] (III) Beneficial Effects

[0021] 1. The atomization holes are arranged between the outer mounting ring and the inner fixing ring, the atomization holes are a group of annular grooves, a plurality of groups of through holes are symmetrically distributed in the annular grooves to maintain the fuel atomization passage, the number of the through holes is designed according to the use requirements of fuel injection, the outer mounting ring is used to block the passage of the outer guide block, the discharge area is reduced by the atomization holes to increase the oil pressure, and good atomization effect is realized.

[0022] 2. The middle part is shielded by the inner rotating block, the position of the outer mounting ring corresponds, edge atomization is realized, a plurality of outer accommodation grooves are arranged in the middle part of the plate, the outer accommodation grooves are through groove structures, a part of the atomization holes are shielded by corresponding the position of the outer accommodation grooves and the atomization holes, the number of the atomization hole passages is controlled, and then the atomized fuel injection amount is regulated and controlled, the head sleeve is rotated relative to the middle rotating block by the external driving gear, the six groups of through holes of the atomization holes are divided into a plurality of gears such as group, group, group, group, and the working conditions of the engine are matched, the fuel-air mixing ratio is changed, the fuel economy is improved, the carbon deposition problem caused by repeated combustion is reduced, and the use working condition of the engine is optimized.

[0023] 3. The extension and retraction of the push rod is controlled by the electromagnetic valve, the push block is a conical plug, the position of the push block in the outer guide block is adjusted by the extension and retraction of the push rod driven by the electromagnetic valve, the size of the oil passage in the outer guide block is changed, the fuel injection pressure is changed, and the control of the atomized fuel injection amount is affected. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and the content of the specification can be implemented, the following is a preferred embodiment of the present application and the detailed description is as follows.

[0025] Figure 1 It is an appearance structure diagram of the aviation engine fuel atomization system of the present application;

[0026] Figure 2 It is a sectional structure diagram of the aviation engine fuel atomization system of the present application;

[0027] Figure 3 It is a side view structure diagram of the connecting block in the aviation engine fuel atomization system of the present application;

[0028] Figure 4 Connection diagram of rotating baffle in aviation engine fuel atomization system of the application;

[0029] Figure 5 Connection diagram of shunt in aviation engine fuel atomization system of the application.

[0030] Legend:

[0031] 1, head sleeve; 2, middle rotating block; 3, tail fixed block;

[0032] 4, rotating baffle; 41, plate material; 42, inner rotating block; 43, outer allowance slot;

[0033] 5, shunt; 51, outer mounting ring; 52, inner fixed ring; 53, atomization hole;

[0034] 6, connecting ring; 7, outer gear; 8, outer guide block; 9, push block; 10, connecting block; 11, push rod; 12, electromagnetic valve. DETAILED DESCRIPTION

[0035] The embodiment of the application provides an aviation engine fuel atomization system, solves the problem of fuel atomization injection amount in the prior art, designs a device including electric control and mechanical control for controlling atomized fuel injection amount, and realizes matching and control of atomized injection amount.

[0036] Embodiment 1

[0037] The technical scheme in the embodiment of the application is used for solving the problem of improving injection consistency, and the general idea is as follows:

[0038] In view of the problems in the prior art, the application provides an aviation engine fuel atomization system, which comprises

[0039] An atomization passage is composed of a controller and an atomization spray,

[0040] An atomization spray head comprises a middle rotating block 2 and a tail fixed block 3, the tail fixed block 3 is an oil inlet pipe connected with an outer oil supply pipeline, the middle rotating block 2 is rotatably installed on the tail fixed block 3 through an outer thread on the outer side of the tail fixed block 3, fuel in the tail fixed block 3 is extruded and atomized and sprayed out through the middle rotating block 2, and the atomization operation on the fuel is completed,

[0041] An outer guide block 8 is arranged on the part of the middle rotating block 2 in communication with the tail fixed block 3, and a shunt 5 is fixedly installed on the output end of the middle rotating block 2, like Figure 4As shown, the flow splitter 5 includes an outer mounting ring 51 and an inner fixing ring 52, the inner fixing ring 52 is fixedly installed on the inner side of the middle rotating block 2, the outer mounting ring 51 and the inner fixing ring 52 are provided with an atomizing hole 53, the atomizing hole 53 is a group of annular grooves, and a plurality of groups of through holes are symmetrically distributed in the annular grooves for maintaining the injection of the fuel atomizing channel, wherein the number of through holes is designed according to the use requirements of fuel injection, and six groups are taken as an example for illustration, the outer mounting ring 51 is used to block the channel of the outer guide block 8, and the pressure of the oil outlet is increased by reducing the discharge area of the atomizing hole 53, so that good atomizing effect is realized.

[0042] Embodiment 2

[0043] Based on embodiment 1, the engine has different requirements for fuel injection and atomization amount under different working conditions, so a device for controlling the atomizing fuel injection amount needs to be designed, including electric control and mechanical control:

[0044] The mechanical control is arranged on the outer side of the middle rotating block 2, the outer side of the middle rotating block 2 is provided with an outer thread, a head sleeve 1 is rotatably installed through the outer thread, the head sleeve 1 is built-in with a rotating baffle 4, the rotating baffle 4 is provided with a connecting ring 6 on the outer side, and the head sleeve 1 and the rotating baffle 4 are clamped and fixed through the connecting ring 6, so as to facilitate disassembly and installation of the rotating baffle 4, as shown in Figure 2 and 5 As shown, the rotating baffle 4 includes a plate material 41, the plate material 41 is a circular plate structure, the plate material 41 is provided with an inner rotating block 42 in the middle, the middle part is shielded through the inner rotating block 42, and the position of the outer mounting ring 51 corresponds, edge atomization is realized, the plate material 41 is provided with a plurality of outer accommodation grooves 43 in the middle, the outer accommodation grooves 43 are through groove structures, a part of the atomizing holes 53 are shielded by corresponding the positions of the outer accommodation grooves 43 and the atomizing holes 53, the control of the number of atomizing hole 53 passages is realized, and the regulation and control of the atomizing fuel injection amount are realized,

[0045] The outer side of the head sleeve 1 is provided with an outer gear 7, the outer gear 7 is an outer gear, the head sleeve 1 is rotated relative to the middle rotating block 2 through an external driving gear, through the angle control, the six groups of through holes of the atomizing hole 53 can be divided into 0 group, 2 group, 3 group, 6 group and a plurality of gears to match the working conditions of the engine, change the ratio of fuel-air mixture, improve the fuel economy, reduce the problem of carbon deposition caused by repeated combustion, and optimize the use of engine working conditions,

[0046] In summary Figure 3As shown, the tail fixed block 3 is internally provided with an electric control oil injection assembly, which comprises a push block 9, a connecting block 10 and a push rod 11. The tail fixed block 3 is internally provided with the connecting block 10, which is a support distributed by several groups of stacks. Since the distributed structure is adopted, good support is ensured while the influence on the oil passage in the tail fixed block 3 is reduced. The connecting block 10 is fixedly provided with the push rod 11 on one side. The push rod 11 is provided with the push block 9 at one end. The push rod 11 is two groups of pull rods that can be controlled to stretch and retract. The push rod 11 is provided with an electromagnetic valve 12 in the middle. The electromagnetic valve 12 controls the stretching and retraction of the push rod 11 through an external electromagnetic model. The push block 9 is a conical plug. The stretching and retraction of the push rod 11 is driven by the electromagnetic valve 12 to adjust the position of the push block 9 in the outer guide block 8, so as to change the size of the oil passage in the outer guide block 8, change the oil injection pressure, and control the control of the atomized oil injection amount.

[0047] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limitations of the embodiments. Based on the above description, those skilled in the art can also make other different forms of changes or variations. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. An aircraft engine fuel atomization system comprising an atomization passageway, the atomization passageway comprising a controller and an atomization tip, the aircraft engine fuel atomization system characterized by: Atomizing nozzle, including middle rotating block (2) and tail fixed block (3), the tail fixed block (3) is the oil inlet pipe connected with the outside oil supply pipeline, the tail fixed block (3) is rotatably installed with middle rotating block (2) through the external thread, the fuel in the tail fixed block (3) is extruded and atomized and sprayed out through the middle rotating block (2), the part of the middle rotating block (2) inside and the tail fixed block (3) are communicated and are provided with outer guide block (8), the middle rotating block (2) output end is fixedly installed with shunt piece (5); The middle rotating block (2) is provided with external thread on the outside, the head sleeve (1) is rotatably installed through the external thread, the head sleeve (1) is built-in rotating baffle (4), the rotating baffle (4) is provided with connecting ring (6) on the outside, the head sleeve (1) and the rotating baffle (4) are fixedly connected through the connecting ring (6).

2. The aircraft engine fuel atomization system of claim 1, wherein: The shunt piece (5) includes outer mounting ring (51) and inner fixed ring (52), the inner fixed ring (52) is fixedly installed on the inside of the middle rotating block (2), the outer mounting ring (51) and the inner fixed ring (52) are provided with atomizing hole (53) between them, the atomizing hole (53) is a group of circular groove, and a plurality of groups of through holes are symmetrically distributed in the circular groove for maintaining the injection of fuel atomization channel.

3. The aircraft engine fuel atomization system of claim 2, wherein: The outer mounting ring (51) is used to block the channel of the outer guide block (8), and the pressure of the oil outlet is increased by reducing the discharge area through the atomizing hole (53).

4. The aircraft engine fuel atomization system of claim 1, wherein: The rotating baffle (4) includes plate material (41), the plate material (41) is a circular plate structure, the plate material (41) is provided with inner rotating block (42) in the middle, the middle part is shielded through the inner rotating block (42), and the position corresponds to the outer mounting ring (51).

5. The aircraft engine fuel atomization system of claim 4, wherein: The plate material (41) is provided with a plurality of outer accommodation grooves (43) in the middle, the outer accommodation grooves (43) are through groove structures, and the positions of the outer accommodation grooves (43) correspond to the atomizing holes (53).

6. The aircraft engine fuel atomization system of claim 1, wherein: The head sleeve (1) is provided with outer gear (7) on the outside, the outer gear (7) is an external gear, and the head sleeve (1) is rotated relative to the middle rotating block (2) by the external driving gear.

7. The aircraft engine fuel atomization system of claim 1, wherein: The tail fixed block (3) is provided with an electric control oil injection assembly inside, the electric control oil injection assembly includes push block (9), connecting block (10) and push rod (11), the tail fixed block (3) is provided with connecting block (10) inside, the connecting block (10) is a plurality of groups of distributed support, and the distributed structure is adopted.

8. The aircraft engine fuel atomization system of claim 7, wherein: One side of the connecting block (10) is fixedly installed with push rod (11), one end of the push rod (11) is provided with push block (9), the push rod (11) is two groups of telescopic control pull rods, the middle of the push rod (11) is provided with electromagnetic valve (12), and the electromagnetic valve (12) controls the telescopic control of the push rod (11) through the external electromagnetic type.

9. The aircraft engine fuel atomization system of claim 8, wherein: The push block (9) is a conical plug, and the position of the push block (9) in the outer guide block (8) is adjusted by the telescopic control of the push rod (11) driven by the electromagnetic valve (12).

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