CN202709180U - Double-oil-way fuel injection device - Google Patents
Double-oil-way fuel injection device Download PDFInfo
- Publication number
- CN202709180U CN202709180U CN 201220286396 CN201220286396U CN202709180U CN 202709180 U CN202709180 U CN 202709180U CN 201220286396 CN201220286396 CN 201220286396 CN 201220286396 U CN201220286396 U CN 201220286396U CN 202709180 U CN202709180 U CN 202709180U
- Authority
- CN
- China
- Prior art keywords
- fuel injection
- fie
- oil circuit
- injection equipment
- pair
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The utility model provides a double-oil-way fuel injection device. The double-oil-way fuel injection device comprises an injection body, a whirlcone arranged on the injection body, an assistant nozzle, a main nozzle and an atomizing airhood. A first end of the atomizing airhood is sleeved into the outer side wall of the injection body and forms a loop cavity with the inner side wall of the main nozzle. A plurality of air intakes are arranged in the side wall of the atomizing airhood, and the air intakes are communicated with the loop cavity. According to the double-oil-way fuel injection device, air enters through the air intakes of the atomizing airhood, and the double-oil-way fuel injection device is arranged on a flame tube of a combustor, the air is formed into an airflow with a high flow rate due to the inner and outer pressure difference of the flame tube, so that fuel oil blown from the main nozzle and the assistant nozzle is atomized, and fine atomizing quality is achieved.
Description
Technical field
The utility model relates to the gas-turbine unit field, especially, relates to a kind of pair of oil circuit fuel injection equipment (FIE).
Background technology
The fuel injection equipment (FIE) that current Small Gas Turbine Engine adopts mainly contains single oil circuit fuel injection equipment (FIE) and two kinds of two oil circuit fuel injection equipment (FIE)s.There are two oil circuits the inside of two oil circuit fuel injection equipment (FIE)s, comprises working connection and auxiliary oil circuit.When engine in igniting or slow train when work, only by the auxiliary oil circuit fuel feeding; When the engine power increase, when charge oil pressure raise, the distributing valve in fuel dispenser or the fuel injection equipment (FIE) was opened, and working connection and auxiliary oil circuit be fuel feeding simultaneously, to satisfy the fuel feeding demand of the high-power state of engine.
Along with contemporary Small Gas Turbine Engine temperature rise is more and more higher, and from before more being applied on the not high helicopter of flying height, being applied in widely as auxiliary power unit finally has on the harsh fighter plane that requires high-altitude start, just more broad to its fuel feeding area requirement.Two oil circuit fuel injection equipment (FIE) fuel feeding wide ranges, the advantage such as atomization quality is good and lean extinction limit is wide can satisfy the requirement of the high and low empty different operating state flameholding of aero-engine, completing combustion.Therefore, also increasing gradually of the application of two oil circuit fuel injection equipment (FIE)s on Small Gas Turbine Engine.
But when working than low oil pressure, there is the second-rate problem of working connection fuel-oil atmozation in two oil circuit fuel injection equipment (FIE)s, and this mainly is because the structure of two oil circuit fuel injection equipment (FIE)s is caused.Because the restriction of cap jet structure, the diameter of spout can not be too little in the working connection.In addition, the impact that is subjected to machining accuracy and is stopped up by dirt in the fuel oil, the length and width of tangential oil-feed tank generally can not be too little in the working connection.In the excessive situation of main injection jet diameter, oil-feed tank circulation area, during low oil pressure, this pair of oil circuit fuel injection equipment (FIE) working connection atomization quality will variation.
The utility model content
The utility model purpose is to provide a kind of pair of oil circuit fuel injection equipment (FIE), to solve under the state of low oil pressure the technical problem that the atomization quality of two oil circuit fuel injection equipment (FIE)s is poor.
For achieving the above object, according to an aspect of the present utility model, a kind of pair of oil circuit fuel injection equipment (FIE) is provided, comprise ejectisome, be installed in cyclone, cap jet and main injection jet on the ejectisome, two oil circuit fuel injection equipment (FIE)s also comprise the atomizing space gas hood, and the first end of atomizing space gas hood is sleeved on the lateral wall of ejectisome, and form ring cavity with the madial wall of main injection jet, the sidewall of atomizing space gas hood has a plurality of air admission holes, and air admission hole communicates with ring cavity.
Further, the atomizing space gas hood is the tubular structure of both ends open, and the madial wall of the second end of atomizing space gas hood is taper surface.
Further, the outlet side of ring cavity is tapered.
Further, the tapering of taper is 8 ° ~ 30 °.
Further, the scope of the width d1 of ring cavity outlet is 0.3mm ~ 0.7mm.
Further, a plurality of air admission holes are evenly distributed on the sidewall of atomizing space gas hood.
Further, air admission hole is 2 ~ 6.
Further, the magnitude range of the diameter d 2 of air admission hole is 1.2mm ~ 4mm.
Further, cyclone is installed in the second end of ejectisome, and cyclone is contained in cap jet, the second end of cap jet contact ejectisome, and main injection jet is sleeved on the cap jet.
Further, ejectisome is the double tubular structure, comprises inner core and urceolus, and the port of the urceolus of the second end of ejectisome is provided with the ladder platform, the lateral wall contact ladder platform of main injection jet.
The utlity model has following beneficial effect: of the present utility model pair of oil circuit fuel injection equipment (FIE) increased the atomizing space gas hood with respect to prior art, air admission hole by the atomizing space gas hood enters air, and the utility model is installed on the burner inner liner of combustion chamber, the inside and outside differential pressure of burner inner liner is so that air forms the air-flow of high flow rate, so that from main injection jet and cap jet ejection fuel-oil atmozation, to reach good atomization quality.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of two oil circuit fuel injection equipment (FIE)s of the utility model preferred embodiment;
Fig. 2 is the structural representation of ejectisome of two oil circuit fuel injection equipment (FIE)s of the utility model preferred embodiment;
Fig. 3 is the structural representation of cyclone of two oil circuit fuel injection equipment (FIE)s of the utility model preferred embodiment; And
Fig. 4 is the structural representation of cap jet of two oil circuit fuel injection equipment (FIE)s of the utility model preferred embodiment.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, preferred embodiment of the present utility model provides a kind of pair of oil circuit fuel injection equipment (FIE), comprises ejectisome 10, is installed in cyclone 20, cap jet 30, main injection jet 40 and atomizing space gas hood 50 on the ejectisome 10.
Please in conjunction with referring to Fig. 2, the first end of ejectisome 10 communicates with oil supply system.Ejectisome 10 is the double tubular structure, comprises inner core 11 and urceolus 12, and inner core 11 is main oil channel channel with the interlayer of urceolus 12, and the inner chamber of inner core 11 is the auxiliary oil circuit passage.The port of the inner core 11 of the second end of ejectisome 10 is shorter than the port of urceolus 12 of the second end of ejectisome 10.Preferably, the port of the urceolus 12 of the second end of ejectisome 10 is provided with ladder platform 13.
Please in conjunction with referring to Fig. 3, cyclone 20 is installed in the second end of the inner core 11 of ejectisome 10.Cyclone 20 is tubular structure, and its first end opening communicates with the inner chamber of the inner core 11 of ejectisome 10.The periphery circle of the second end of cyclone 20 has breach 21, and preferably, the second end of cyclone 20 also is provided with through hole 22, and through hole 22 communicates with breach 21, and the fuel oil via through holes 32 in the cyclone 20 enters into the breach 21 of the periphery circle of cyclone 20.
Please in conjunction with referring to Fig. 4, cap jet 30 is accommodated cyclone 20, and the second end of the first end contact ejectisome 10 of cap jet 30.Cap jet 30 comprises cap jet main body 31, be sleeved on cap jet main body 31 first end outer ring 32 and extend the auxiliary jet 33 that inside contracts with the second end by cap jet main body 31.Preferably, the inner chamber interference fit of cyclone 20 and cap jet main body 31.The breach 21 of cyclone 20 communicates with the inner chamber of cap jet main body 31 and auxiliary jet 33.Cap jet main body 31 forms a first passage that communicates with main oil channel channel with outer ring 32.
Atomizing space gas hood 50 is the tubular structure of both ends open, and the first end of atomizing space gas hood 50 is sleeved on the lateral wall of ejectisome 10, preferably, and atomizing space gas hood 50 and ejectisome 10 interference fit.Preferably, the madial wall of the second end of atomizing space gas hood 50 is taper surface 52.The sidewall of the second end of atomizing space gas hood 50 has a plurality of air admission holes 51, and the magnitude range of the diameter d 2 of air admission hole 51 is 1.2mm ~ 4mm.Preferably, a plurality of air admission holes 51 are evenly distributed on the sidewall of atomizing space gas hood 50.Usually, even 2 ~ 6 air admission holes 51 that distribute of the sidewall of atomizing space gas hood 50.Main injection jet 40 is contained in the atomizing space gas hood 50, and the lateral wall of the madial wall of atomizing space gas hood 50 and main injection jet 40 forms a ring cavity 60.Air admission hole 51 communicates with cavity 60, so that air enters into cavity 60 when interior from air admission hole 51.Preferably, the port of export of ring cavity 60 is tapered, and the tapering of taper is 8 ° ~ 30 °, so that the air of the ring cavity 60 of flowing through can accelerate through the port of export time.More preferably, the scope of the width d1 of the outlet of ring cavity 60 is 0.3mm ~ 0.7mm.
Of the present utility model pair of oil circuit fuel injection equipment (FIE) is mounted in the gas turbine combustors, and atomizing space gas hood 50 stretches in the burner inner liner of combustion chamber.When gas-turbine unit normal operation when the low oil pressure state is worked, oil supply system provides fuel oil to ejectisome 10.On the auxiliary oil circuit, fuel oil enters into cyclone 20 through the inner chamber of ejectisome 10, and the auxiliary jet 33 that enters into cap jet 30 through through hole 32 and the breach 31 of cyclone 20 successively outwards sprays by auxiliary jet 33.On the working connection, fuel oil arrives main burner 41 through the inner core 11 of ejectisome 10 and the interlayer of urceolus 12 through first passage, second channel, outwards sprays by main burner 41.Because gas-turbine unit is in working order the time, there is draught head outward with burner inner liner in the burner inner liner, so that air enters ring cavity 60 speed when interior from air admission hole 51, especially when entering the outlet side of ring cavity 60, speed is accelerated, so that air flows out at a high speed ring cavity 60, produce shear force with the fuel oil that sprays on working connection and the auxiliary oil circuit, form the fuel oil of atomizing.
The of the present utility model pair of oil circuit fuel injection equipment (FIE) enters air by the air admission hole 51 of atomizing space gas hood 50, and the utility model is installed on the burner inner liner of combustion chamber, the inside and outside differential pressure of burner inner liner is so that air forms the air-flow of high flow rate, so that from main injection jet 40 and cap jet 30 ejection fuel-oil atmozations, to reach good atomization quality.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. two oil circuit fuel injection equipment (FIE), comprise ejectisome (10), be installed in the cyclone (20) on the described ejectisome (10), cap jet (30) and main injection jet (40), it is characterized in that, described pair of oil circuit fuel injection equipment (FIE) also comprises atomizing space gas hood (50), the first end of described atomizing space gas hood (50) is sleeved on the lateral wall of described ejectisome (10), and form ring cavity (60) with the madial wall of described main injection jet (40), the sidewall of described atomizing space gas hood (50) has a plurality of air admission holes (51), and described air admission hole (51) communicates with described ring cavity (60).
2. according to claim 1 pair of oil circuit fuel injection equipment (FIE) is characterized in that, described atomizing space gas hood (50) is the tubular structure of both ends open, and the madial wall of the second end of described atomizing space gas hood (50) is taper surface (52).
3. according to claim 1 pair of oil circuit fuel injection equipment (FIE) is characterized in that, the outlet side of described ring cavity (60) is tapered.
4. according to claim 3 pair of oil circuit fuel injection equipment (FIE) is characterized in that, the tapering of described taper is 8 ° ~ 30 °.
5. according to claim 4 pair of oil circuit fuel injection equipment (FIE) is characterized in that, the scope of the width d1 of described ring cavity (60) outlet is 0.3mm ~ 0.7mm.
6. according to claim 1 pair of oil circuit fuel injection equipment (FIE) is characterized in that, a plurality of described air admission holes (51) are evenly distributed on the sidewall of described atomizing space gas hood (50).
7. according to claim 6 pair of oil circuit fuel injection equipment (FIE) is characterized in that, described air admission hole (51) is 2 ~ 6.
8. according to claim 6 pair of oil circuit fuel injection equipment (FIE) is characterized in that, the magnitude range of the diameter d 2 of described air admission hole (51) is 1.2mm ~ 4mm.
9. according to claim 1 pair of oil circuit fuel injection equipment (FIE), it is characterized in that, described cyclone (20) is installed in the second end of described ejectisome (10), described cyclone (20) is contained in described cap jet (30), the second end of the described ejectisome of described cap jet (30) contact (10), described main injection jet (40) is sleeved on the described cap jet (30).
10. according to claim 9 pair of oil circuit fuel injection equipment (FIE), it is characterized in that, described ejectisome (10) is the double tubular structure, comprise inner core (11) and urceolus (12), the port of the urceolus (12) of the second end of described ejectisome (10) is provided with ladder platform (13), the described ladder platform of the lateral wall contact of described main injection jet (40) (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286396 CN202709180U (en) | 2012-06-18 | 2012-06-18 | Double-oil-way fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220286396 CN202709180U (en) | 2012-06-18 | 2012-06-18 | Double-oil-way fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709180U true CN202709180U (en) | 2013-01-30 |
Family
ID=47589476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220286396 Expired - Lifetime CN202709180U (en) | 2012-06-18 | 2012-06-18 | Double-oil-way fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709180U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783032A (en) * | 2016-05-18 | 2016-07-20 | 贵州航空发动机研究所 | Wide-range fuel oil nozzle suitable for overhead work |
| CN106196170A (en) * | 2016-07-21 | 2016-12-07 | 中国航空动力机械研究所 | Centrifugal oil swirling atomization structure |
| CN106499559A (en) * | 2016-10-31 | 2017-03-15 | 北京动力机械研究所 | Double oil circuit swirl atomizer structures of major-minor oil circuit integrated design |
| CN108087907A (en) * | 2017-12-17 | 2018-05-29 | 北京工业大学 | A kind of double oil circuit rotarytype injectors |
| CN110822482A (en) * | 2019-11-28 | 2020-02-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Medium-low calorific value gas and liquid dual-fuel nozzle and fuel switching method |
-
2012
- 2012-06-18 CN CN 201220286396 patent/CN202709180U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783032A (en) * | 2016-05-18 | 2016-07-20 | 贵州航空发动机研究所 | Wide-range fuel oil nozzle suitable for overhead work |
| CN106196170A (en) * | 2016-07-21 | 2016-12-07 | 中国航空动力机械研究所 | Centrifugal oil swirling atomization structure |
| CN106196170B (en) * | 2016-07-21 | 2018-08-31 | 中国航空动力机械研究所 | Centrifugal oil swirling atomization structure |
| CN106499559A (en) * | 2016-10-31 | 2017-03-15 | 北京动力机械研究所 | Double oil circuit swirl atomizer structures of major-minor oil circuit integrated design |
| CN106499559B (en) * | 2016-10-31 | 2019-07-12 | 北京动力机械研究所 | The double oil circuits swirl atomizer structure of major-minor oil circuit integrated design |
| CN108087907A (en) * | 2017-12-17 | 2018-05-29 | 北京工业大学 | A kind of double oil circuit rotarytype injectors |
| CN108087907B (en) * | 2017-12-17 | 2019-12-03 | 北京工业大学 | A kind of double oil circuits rotarytype injector |
| CN110822482A (en) * | 2019-11-28 | 2020-02-21 | 中国航发沈阳黎明航空发动机有限责任公司 | Medium-low calorific value gas and liquid dual-fuel nozzle and fuel switching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103134079B (en) | Double-oil-circuit fuel nozzle | |
| CN202709180U (en) | Double-oil-way fuel injection device | |
| CN202852884U (en) | Double-oil-line centrifugal atomization jet device | |
| CN202350096U (en) | Double-oil circuit fuel nozzle | |
| CN202835445U (en) | Centrifuge atomizing spray nozzle | |
| EP2772690B1 (en) | Fuel nozzle with discrete jet inner air swirler | |
| CN105783032A (en) | Wide-range fuel oil nozzle suitable for overhead work | |
| CN103791518B (en) | A kind of combustion chamber fuel oil sprays and mixing arrangement and aero-engine | |
| CN105823086A (en) | Cyclonic coupling nozzle | |
| CN203823810U (en) | Advanced vortex combustor with flow deflectors | |
| CN205619380U (en) | Wide region fuel nozzle structure suitable for high altitude work | |
| CN109210532B (en) | Enhanced atomization type fuel spray gun | |
| CN104154566B (en) | gas turbine dual fuel nozzle structure | |
| CN203940423U (en) | Machinery rotational flow air combined atomizing oil gun | |
| ZA202311284B (en) | Gas burner | |
| CN204665351U (en) | The steady flame device of a kind of gas-turbine combustion chamber cold gas | |
| CN202835442U (en) | Structure preventing carbon from being deposited on jet nozzle | |
| CN205851139U (en) | Nozzle arrangements, spray gun and gun system | |
| CN202852882U (en) | Fuel oil atomization device | |
| CN104832949B (en) | Airflow induction backward step standing vortex flame stabilization grading combustion chamber | |
| CN104088742A (en) | Step type orifice oil nozzle | |
| CN105444167A (en) | Internal mixing type bubble atomization oil gun | |
| CN203442826U (en) | Combustor nozzle | |
| CN205402794U (en) | Central nozzle structure of self -inhibition tempering | |
| CN210688206U (en) | Mechanical atomization diesel spray gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |