CN103134079A - Double-oil-circuit fuel nozzle - Google Patents
Double-oil-circuit fuel nozzle Download PDFInfo
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- CN103134079A CN103134079A CN2011103889057A CN201110388905A CN103134079A CN 103134079 A CN103134079 A CN 103134079A CN 2011103889057 A CN2011103889057 A CN 2011103889057A CN 201110388905 A CN201110388905 A CN 201110388905A CN 103134079 A CN103134079 A CN 103134079A
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- cyclone
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Abstract
The invention relates to a double-oil-circuit fuel nozzle, in particular to a double-oil-circuit large-spray-cone-angle fuel nozzle. The double-oil-circuit fuel nozzle mainly comprises a nozzle shell body, a main oil circuit nozzle, a main oil circuit swirler and a vice oil circuit swirler. A main oil circuit swirling chamber is formed by the main oil circuit swirl and an inner cavity of the main oil circuit nozzle, a vice oil circuit swirling chamber is formed by a head cone-shaped body of the vice oil circuit swirler and a convergence taper angle of the inner cavity of the main oil circuit swirler, and a cooling air channel is designed on the main oil circuit nozzle. The problem that an aero-engine combustor is wide in fuel supply range is well resolved, a spray cone angle of the fuel nozzle is increased by 10 degrees to 15 degrees, and the effects of nozzle cooling and nozzle surface carbon deposition blowing down are achieved.
Description
Technical field
The present invention relates to a kind of pair of oil way fuel spray nozzle; Refer more particularly to a kind of two oil circuit pressure atomization formula fuel nozzles of large spray cone angle.
Background technology
General fuel nozzle is atomizer traditionally, is used widely on the burner of the firing equipments such as thermodynamic device, industrial furnace, can use liquid fuel such as diesel oil, kerosene, heavy oil and Aalcohols fuel etc.Fuel nozzle is oil burning jet to be injected in the combustion chamber carry out blending, atomizing, burning with other medium such as compressed air etc.The fuel oil of fuel nozzle sprays, the power of atomizing is formed by oil pump supercharging or high pressure draught blending.Fuel nozzle is divided into single oil circuit and two oil circuit, and two oil way fuel spray nozzles are divided into again two-way single chamber single jet fuel nozzle, the two chamber single jet nozzles (tandem duplex burner) of two-way, the two spout fuel nozzles (duplex burner in parallel) in the two chambers of two-way.Can and select different nozzles according to its purposes design.For above three kinds of two oil way fuel spray nozzles, the core texture of its major and minor oil circuit all is comprised of tangential oil-feed tank or hole, spin chamber and spout three parts.Most widely used at aviation field at present is two oil way fuel spray nozzle in parallel, especially on aero-engine.In order to adapt to the working range of aero-engine broadness, often adopt the fuel feeding wide ranges, each state atomization quality is good and two oil way fuel spray nozzles that lean extinction limit is wide come to the combustion chamber fuel feeding.But when the fuel nozzle that adopts the two spout structure forms of two oil circuits during to the combustion chamber fuel feeding, due to the length and width structural limitations of acceptor, cap jet and tangential oil-feed tank and the restriction of being stopped up by dirt in fuel oil, under the charge oil pressure condition of regulation, guarantee and improve fuel oil supply, increasing spray cone angle, must improve design or redesign to the structure of existing pair of oil way fuel spray nozzle.
Summary of the invention
The objective of the invention is to be to overcome above-mentioned prior art problem and carry out and improve the pressure atomization formula fuel nozzle design a kind of pair of large spray cone angle of oil circuit of the aeroengine combustor buring chamber using.
The technical problem that (1) will solve
The present invention need to solve aeroengine combustor buring chamber fuel feeding wide ranges, problem that the fuel nozzle spray cone angle is large.The auxiliary oil circuit spray cone angle increases 10 °～15 °, and the auxiliary oil circuit flow increases 30%.
(2) technical scheme
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of pair of oil circuit pressure atomization formula fuel nozzle of the present invention comprises that mainly nozzle body, working connection spout, working connection cyclone (doubling as the auxiliary oil circuit spout) and auxiliary oil circuit cyclone form.The auxiliary oil circuit cyclone is arranged in the working connection cyclone, then is arranged on together on nozzle body, and the working connection spout is arranged on the outside of main injection jet cyclone.
Described working connection spout is comprised of working connection spout body and gas hood, and gas hood is to be installed on working connection spout body; Be designed with the nozzle air admission hole and the nozzle gas hole that blow down the spout area carbon on gas hood, and carry out cooling to nozzle; The inner chamber formation working connection spin chamber of working connection cyclone outside and working connection spout body is designed with working connection tangential swirl groove on the face of cylinder of working connection cyclone; Be designed with auxiliary oil circuit tangential swirl groove on auxiliary oil circuit cyclone head bullet, the inner cone formation auxiliary oil circuit spin chamber of auxiliary oil circuit cyclone bullet and working connection cyclone.
Described pair of oil way fuel spray nozzle is by improving major and minor oil circuit cyclone.Improve the auxiliary oil circuit hydrocyclone structure: strengthen rotating flow cone feature dimension and cone angle, strengthen the cyclone recess diameter, increase the quantity of tangential slot, strengthen the tangential angle of tangential slot and symmetrical channels spacing; Improve the working connection hydrocyclone structure: strengthen inner chamber convergence cone angle, increase a ring shaped step and intersect with inner chamber convergence cone angle at inner chamber, strengthen spout outlet cone angle, shorten spout outlet conical surface axial length dimension and spout outlet straightway size.
Compared with prior art, the invention has the beneficial effects as follows:
Improving design draws through checking: under the condition that charge oil pressure remains unchanged, the fuel delivery of auxiliary oil circuit increases by 30%, and the spray cone angle of auxiliary oil circuit increases 10 °～15 °, and the working connection property retention is constant.In the situation that do not change nozzle exterior contour size, the shortcoming that the spray cone angle that has overcome pressure atomization formula nozzle reduces with the increase of fuel flow.
Description of drawings
Fig. 1 is two oil way fuel spray nozzle structure charts.
1-nozzle body 2-auxiliary oil circuit cyclone 3-working connection cyclone 4-working connection spout 5-gas hood 6-nozzle air admission hole 7-working connection spout body 8-nozzle gas hole
Fig. 2 is working connection cyclone sketch
9-working connection cyclone inner chamber convergence cone angle 10-working connection cyclone inner chamber step 11-working connection eddy flow groove 12-working connection cyclone outlet cone angle 13 working connection cyclone spout length of straigh line 14-cyclone spout outlet conical surface length
Fig. 3 is auxiliary oil circuit cyclone sketch
15-auxiliary oil circuit cyclone neck 16-auxiliary oil circuit eddy flow groove 17-auxiliary oil circuit cyclone eddy flow angle of the v-groove 18-auxiliary oil circuit cyclone eddy flow groove entrance external diameter 19-auxiliary oil circuit cyclone eddy flow groove outlet external diameter 20-auxiliary oil circuit cyclone bullet
Fig. 4 is auxiliary oil circuit cyclone (A is to diagram) eddy flow groove sketch
The vertical symmetrical spacing of 21-eddy flow groove outlet lateral symmetry spacing 22-eddy flow groove outlet
The specific embodiment
Below by specific embodiment, the present invention is further described.It is descriptive below implementing, and is not determinate, can not limit protection scope of the present invention with this.
As shown in Figure 1, a kind of pair of oil way fuel spray nozzle of the present invention mainly is comprised of nozzle body 1, auxiliary oil circuit cyclone 2, working connection cyclone 3 and working connection spout 4, auxiliary oil circuit cyclone 2 is arranged in working connection cyclone 3, be arranged on together again on nozzle body 1, then working connection spout 4 be arranged on the outside of main injection jet cyclone 3.
As Fig. 1 Fig. 2, Fig. 3 and shown in Figure 4, working connection spout 4 is comprised of gas hood 5 and working connection spout body 7, and gas hood 5 is to be installed on working connection spout body 7; Be designed with the nozzle air admission hole 6 and the nozzle gas hole 8 that blow down the spout area carbon on gas hood 5; Be designed with working connection eddy flow groove 11 on the face of cylinder of working connection cyclone 3; Be designed with auxiliary oil circuit eddy flow groove 16 on the bullet of auxiliary oil circuit cyclone 2.
described a kind of pair of oil way fuel spray nozzle carries out the auxiliary oil circuit cyclone and improves design: the head bullet that utilizes auxiliary oil circuit cyclone 2 and working connection cyclone inner chamber convergence cone angle 9 formation auxiliary oil circuit spin chambers, change the quantity of auxiliary oil circuit eddy flow groove 16, increase eddy flow groove outlet lateral symmetry spacing 21 and the vertical symmetrical spacing 22 of eddy flow groove outlet, increase conical surface angle and the auxiliary oil circuit cyclone eddy flow angle of the v-groove 17 of auxiliary oil circuit cyclone bullet 21, increase auxiliary oil circuit cyclone eddy flow groove entrance external diameter 18 and auxiliary oil circuit cyclone eddy flow groove outlet external diameter 19, increase auxiliary oil circuit cyclone neck 15.
Described a kind of pair of oil way fuel spray nozzle carries out the working connection cyclone and improves design: the inner chamber formation working connection spin chamber that utilizes working connection cyclone 3 outsides and working connection spout body 7, increase working connection cyclone inner chamber convergence cone angle 9 and working connection cyclone outlet cone angle 12, reduce cyclone spout length of straigh line 13 and cyclone spout outlet conical surface length 14, increase cyclone inner chamber step 10.
Described a kind of pair of oil way fuel spray nozzle, its workflow is: increase working connection fuel manifold charge oil pressure, the working connection of fuel oil by nozzle enters the working connection spin chamber, through 11 rotations of working connection eddy flow groove, by the working connection spout spray enter the combustion chamber atomizing, with air blending and burning; Increase auxiliary oil circuit fuel manifold charge oil pressure, the auxiliary oil circuit of fuel oil by nozzle enters the auxiliary oil circuit spin chamber, through 16 rotations of auxiliary oil circuit eddy flow groove, by the auxiliary oil circuit spout spray enter the combustion chamber atomizing, with air blending and burning; Air enters and is flowed out by the gap between nozzle gas hole 8 and working connection spout body end face and gas hood through nozzle air admission hole 6, and nozzle outer surface is carried out carbon distribution cooling and the blowing nozzle outer surface.
Claims (3)
1. a kind of pair of oil way fuel spray nozzle of the present invention mainly is comprised of nozzle body (1), auxiliary oil circuit cyclone (2), working connection cyclone (3) and working connection spout (4); It is characterized in that: auxiliary oil circuit cyclone (2) is arranged in working connection cyclone (3), then is arranged on together on nozzle body (1), then working connection spout (4) is arranged on the outside of main injection jet cyclone (3); Working connection spout (4) is comprised of gas hood (5) and working connection spout body (7), and gas hood (5) is installed on working connection spout body (7); Be designed with the nozzle air admission hole (6) and the nozzle gas hole (8) that blow down the spout area carbon on gas hood (5); Be designed with working connection eddy flow groove (11) on the face of cylinder of working connection cyclone (3); Be designed with auxiliary oil circuit eddy flow groove (16) on the bullet of auxiliary oil circuit cyclone (2).
2. a kind of pair of oil way fuel spray nozzle according to claim 1, it is characterized in that: utilize the head bullet of auxiliary oil circuit cyclone (2) and working connection cyclone inner chamber convergence cone angle (9) to consist of the auxiliary oil circuit spin chamber, change the quantity of auxiliary oil circuit eddy flow groove (16), increase eddy flow groove outlet lateral symmetry spacing (21) and eddy flow groove outlet vertical symmetrical spacing (22), increase conical surface angle and the auxiliary oil circuit cyclone eddy flow angle of the v-groove (17) of auxiliary oil circuit cyclone bullet (21), increase auxiliary oil circuit cyclone eddy flow groove entrance external diameter (18) and auxiliary oil circuit cyclone eddy flow groove outlet external diameter (19), increase auxiliary oil circuit cyclone neck (15).
3. a kind of pair of oil way fuel spray nozzle according to claim 1, it is characterized in that: the inner chamber formation working connection spin chamber that utilizes working connection cyclone (3) outside and working connection spout body (7), increase working connection cyclone inner chamber convergence cone angle (9) and working connection cyclone outlet cone angle (12), reduce cyclone spout length of straigh line (13) and cyclone spout outlet conical surface length (14), increase cyclone inner chamber step (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110388905.7A CN103134079B (en) | 2011-11-30 | 2011-11-30 | Double-oil-circuit fuel nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110388905.7A CN103134079B (en) | 2011-11-30 | 2011-11-30 | Double-oil-circuit fuel nozzle |
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| CN103134079A true CN103134079A (en) | 2013-06-05 |
| CN103134079B CN103134079B (en) | 2014-12-17 |
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| CN201110388905.7A Active CN103134079B (en) | 2011-11-30 | 2011-11-30 | Double-oil-circuit fuel nozzle |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423768A (en) * | 2013-08-09 | 2013-12-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Bleed air purging system of dual-fuel combustor nozzle itself |
| 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 |
| CN107762699A (en) * | 2017-09-28 | 2018-03-06 | 中国航发动力股份有限公司 | A kind of double oil way fuel spray nozzle flow rate test frocks and method of testing |
| CN107975428A (en) * | 2017-11-23 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of double oil circuit swirl atomizer auxiliary oil circuit structures |
| CN109140501A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | The nozzle arrangements of the centrifugal band bilayer gas hood of the double spouts of double oil circuits |
| CN112303663A (en) * | 2019-07-29 | 2021-02-02 | 赛峰飞机发动机公司 | Injector head of a turbine engine comprising a swirl chamber internally delimited by a post |
| CN112460636A (en) * | 2020-10-27 | 2021-03-09 | 中国船舶重工集团公司第七0三研究所 | Double-oil-way single-nozzle double-fuel nozzle |
| CN113028451A (en) * | 2021-03-23 | 2021-06-25 | 中国科学院工程热物理研究所 | Centrifugal nozzle and swirler integrated combustion chamber head structure |
| CN113266472A (en) * | 2021-05-18 | 2021-08-17 | 中国航发湖南动力机械研究所 | Fuel manifold with double-oil-way nozzle |
| WO2021221593A1 (en) | 2020-04-28 | 2021-11-04 | Ford Otomotiv Sanayi A.S. | Fluid atomizer |
| CN114087626A (en) * | 2021-12-01 | 2022-02-25 | 北京动力机械研究所 | Fuel flow adjustable small cone angle circular seam nozzle |
| CN114087627A (en) * | 2021-11-11 | 2022-02-25 | 中国航发贵州黎阳航空动力有限公司 | Miniature aircraft engine fuel manifold nozzle and oil mixing test method thereof |
| CN114526498A (en) * | 2022-04-21 | 2022-05-24 | 成都中科翼能科技有限公司 | Single-inlet double-oil-way composite atomizing nozzle |
| CN114543118A (en) * | 2022-02-21 | 2022-05-27 | 中国航发贵阳发动机设计研究所 | Centrifugal starting nozzle |
Families Citing this family (1)
| 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 |
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| US6082113A (en) * | 1998-05-22 | 2000-07-04 | Pratt & Whitney Canada Corp. | Gas turbine fuel injector |
| CN1584316A (en) * | 2004-06-04 | 2005-02-23 | 徐小宁 | Fuel atomizing nozzles |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423768A (en) * | 2013-08-09 | 2013-12-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Bleed air purging system of dual-fuel combustor nozzle itself |
| CN103423768B (en) * | 2013-08-09 | 2015-07-29 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of dual-fuel combustion chamber nozzle of combustion self bleed blow out system |
| 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 |
| CN109140501A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | The nozzle arrangements of the centrifugal band bilayer gas hood of the double spouts of double oil circuits |
| CN107762699A (en) * | 2017-09-28 | 2018-03-06 | 中国航发动力股份有限公司 | A kind of double oil way fuel spray nozzle flow rate test frocks and method of testing |
| CN107762699B (en) * | 2017-09-28 | 2019-07-23 | 中国航发动力股份有限公司 | A kind of double oil circuits fuel nozzle flow rate test tooling |
| CN107975428A (en) * | 2017-11-23 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of double oil circuit swirl atomizer auxiliary oil circuit structures |
| CN112303663A (en) * | 2019-07-29 | 2021-02-02 | 赛峰飞机发动机公司 | Injector head of a turbine engine comprising a swirl chamber internally delimited by a post |
| CN112303663B (en) * | 2019-07-29 | 2023-09-01 | 赛峰飞机发动机公司 | Injector head for a turbine engine comprising a swirl chamber delimited internally by a post |
| WO2021221593A1 (en) | 2020-04-28 | 2021-11-04 | Ford Otomotiv Sanayi A.S. | Fluid atomizer |
| CN112460636A (en) * | 2020-10-27 | 2021-03-09 | 中国船舶重工集团公司第七0三研究所 | Double-oil-way single-nozzle double-fuel nozzle |
| CN113028451A (en) * | 2021-03-23 | 2021-06-25 | 中国科学院工程热物理研究所 | Centrifugal nozzle and swirler integrated combustion chamber head structure |
| CN113266472A (en) * | 2021-05-18 | 2021-08-17 | 中国航发湖南动力机械研究所 | Fuel manifold with double-oil-way nozzle |
| CN113266472B (en) * | 2021-05-18 | 2022-06-21 | 中国航发湖南动力机械研究所 | Fuel manifold with double-oil-way nozzle |
| CN114087627A (en) * | 2021-11-11 | 2022-02-25 | 中国航发贵州黎阳航空动力有限公司 | Miniature aircraft engine fuel manifold nozzle and oil mixing test method thereof |
| CN114087626A (en) * | 2021-12-01 | 2022-02-25 | 北京动力机械研究所 | Fuel flow adjustable small cone angle circular seam nozzle |
| CN114543118A (en) * | 2022-02-21 | 2022-05-27 | 中国航发贵阳发动机设计研究所 | Centrifugal starting nozzle |
| CN114526498A (en) * | 2022-04-21 | 2022-05-24 | 成都中科翼能科技有限公司 | Single-inlet double-oil-way composite atomizing nozzle |
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