JPH07269866A - Fine particle fuel injection nozzle - Google Patents
Fine particle fuel injection nozzleInfo
- Publication number
- JPH07269866A JPH07269866A JP6060960A JP6096094A JPH07269866A JP H07269866 A JPH07269866 A JP H07269866A JP 6060960 A JP6060960 A JP 6060960A JP 6096094 A JP6096094 A JP 6096094A JP H07269866 A JPH07269866 A JP H07269866A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- nozzle
- fine particle
- vibrating plate
- injection nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Fuel-Injection Apparatus (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Special Spraying Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はガスタービンエンジンの
燃料を噴射する微粒燃料噴射ノズルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fine fuel injection nozzle for injecting fuel in a gas turbine engine.
【０００２】[0002]
【従来の技術】従来の微粒燃料噴射ノズルを図６乃至図
８により説明する。図６は気流微粒化噴射弁方式ノズル
を示す概略断面図である。空気３６の気流に沿って燃料
管３１からの燃料３２を流し、燃料液膜３３を作り、燃
料を微粒化するノズルである。2. Description of the Related Art A conventional fine fuel injection nozzle will be described with reference to FIGS. FIG. 6 is a schematic cross-sectional view showing an air stream atomizing injection valve type nozzle. This is a nozzle for flowing the fuel 32 from the fuel pipe 31 along the air flow of the air 36 to form a fuel liquid film 33 and atomize the fuel.
【０００３】図７は圧力噴射弁／スワーラ方式ノズルを
示す概略断面図である。燃料４２は燃料管４１から高圧
で噴霧され、燃料液膜４３が形成され、更に空気４６の
スワーラ流で燃料を微粒化するノズルである。FIG. 7 is a schematic sectional view showing a pressure injection valve / swirl type nozzle. The fuel 42 is a nozzle that atomizes the fuel 42 from the fuel pipe 41 at high pressure to form a fuel liquid film 43 and further atomizes the fuel by the swirler flow of the air 46.
【０００４】図８は蒸発管方式ノズルの概略断面図を示
す。空気５６は、高温の蒸発管５３と空気筒５４に流れ
ており、燃料５２が燃料管５１から高温の蒸発管５３に
噴射され、この中で微粒化及び気化されるノズルであ
る。FIG. 8 shows a schematic sectional view of an evaporation tube type nozzle. The air 56 is a nozzle that is flowing through the high temperature evaporation pipe 53 and the air cylinder 54, and the fuel 52 is injected from the fuel pipe 51 to the high temperature evaporation pipe 53, and atomized and vaporized therein.
【０００５】超音波振動子を使用し、液体を微粒化（霧
化）する装置は、超音波吸入器等、であるが、ガスター
ビン、等の燃料ノズルに適用された例はない。An apparatus for atomizing (atomizing) a liquid using an ultrasonic vibrator is an ultrasonic inhaler or the like, but there is no example applied to a fuel nozzle such as a gas turbine.
【０００６】[0006]
【発明が解決しようとする課題】前述の従来の微粒燃料
噴射ノズルでは、燃料流量の変化時、つまりエンジン推
力を変化させる時、液滴径が一定にならず気化が燃料流
量によって異なるため、不安定な燃焼となる。また、従
来のノズルでは、液滴径が積極的にコントロールされて
おらず、径が大きい。In the above-described conventional fine fuel injection nozzle, when the fuel flow rate is changed, that is, when the engine thrust is changed, the droplet diameter is not constant and vaporization varies depending on the fuel flow rate. The combustion will be stable. Further, in the conventional nozzle, the droplet diameter is not actively controlled, and the diameter is large.
【０００７】本発明では、超音波振動子を用いて燃料を
微粒化して燃料流量が変化しても液滴径が小さく、安定
している微粒噴射ノズルを提供するものである。The present invention provides a fine particle injection nozzle which has a small droplet diameter and is stable even if the fuel flow rate is changed by atomizing the fuel using an ultrasonic transducer.
【０００８】[0008]
【課題を解決するための手段】そのため、本発明は、燃
料管の先に円錐形状部材を設け、燃料を円錐状に放射さ
せて円筒状の振動板に導き内周面に衝突させて微粒化す
る。振動板は燃料を下流へ効率良く流れるように先細の
円筒形状とし、更に超音波振動子を設け、振動板を振動
する構成とする。Therefore, according to the present invention, a conical member is provided at the tip of the fuel pipe, and the fuel is radiated in a conical shape, guided to a cylindrical diaphragm, and collided with the inner peripheral surface to atomize the fuel. To do. The vibrating plate has a tapered cylindrical shape so that the fuel can flow efficiently downstream, and an ultrasonic vibrator is further provided to vibrate the vibrating plate.
【０００９】即ち、本発明は、燃料をノズル本体内に導
く燃料管と、同燃料管の先端に取付けられ、燃料を同燃
料管から円錐状に放射させて前記ノズル本体内へ導く円
錐形部材と、前記ノズル本体内で燃料噴射方向に向かっ
て細くなる円筒形状で、前記円錐形部材から導かれる燃
料を衝突させて微粒化して進行方向に導く振動板と、同
振動板を振動させる超音波振動子とを具備してなること
を特徴とする微粒燃料噴射ノズルを提供する。That is, according to the present invention, a fuel pipe for guiding fuel into the nozzle body, and a conical member attached to the tip of the fuel pipe for radiating the fuel from the fuel pipe into a conical shape and guiding the fuel into the nozzle body. And a vibration plate having a cylindrical shape that narrows in the fuel injection direction in the nozzle body, collides with the fuel guided from the conical member, atomizes the fuel, and guides it in the traveling direction, and an ultrasonic wave that vibrates the vibration plate. Provided is a fine fuel injection nozzle characterized by comprising a vibrator.
【００１０】[0010]
【作用】本発明はこのような手段により、燃料は燃料管
からノズル本体内に導かれ、先端の円錐形部材で円錐状
に放射され、円筒状の振動板の内壁に衝突する。この振
動板は超音波振動子で振動しているので、燃料の液滴は
振動板にぶつかり微細化する。更に、振動板は超音波振
動が与えられているので液滴の分解を助け、均一な液滴
径の燃料として微粒化させる。微粒化した燃料は振動板
が先細の円筒形状であるので効率良くノズル本体の下流
へ流れ、微粒化し、安定した燃料の液滴径を得ることが
できる。According to the present invention, by such means, the fuel is guided from the fuel pipe into the nozzle body, radiated in a conical shape by the conical member at the tip, and collides with the inner wall of the cylindrical vibrating plate. Since this vibrating plate is vibrating by the ultrasonic vibrator, the liquid droplets of the fuel hit the vibrating plate and become fine. Further, since the vibrating plate is subjected to ultrasonic vibration, it assists the decomposition of the droplets and atomizes the fuel as fuel having a uniform droplet diameter. Since the vibrating plate of the atomized fuel has a tapered cylindrical shape, the atomized fuel efficiently flows downstream of the nozzle body, atomizes, and a stable fuel droplet diameter can be obtained.
【００１１】又、超音波振動子の振動周波数は燃料流量
に応じて最適の周波数を選定して振動板を振動できるの
で、燃料流量が変化しても、流量に応じて安定した液滴
径を得ることができ、そのため安定した高負荷燃焼が可
能となり、未燃物が減少するようになる。Further, since the vibration frequency of the ultrasonic vibrator can be selected to be the optimum frequency according to the fuel flow rate and the diaphragm can be vibrated, a stable droplet diameter can be obtained according to the flow rate even if the fuel flow rate changes. As a result, stable high-load combustion is possible, and unburned materials are reduced.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面に基づいて具体
的に説明する。図１は本発明の第１実施例に係る微粒燃
料噴射ノズルの断面図でノズル部分を断面で示した図で
ある。図２は図１におけるＡ−Ａ断面図、図３はＢ−Ｂ
断面図である。これらの図において、１は燃料管で燃料
２が内部を通って導かれる。３は円錐コーン部品で支持
材８で図２に示すように燃料管３の端部に取付けられて
いる。４は振動板で先端部になる程先が細くなる円筒状
の形状である。５は後述する微粒化された燃料、６はノ
ズル流入空気、７は燃料／空気混合領域（着火、火災領
域）、９はノズルの本体、１０は超音波振動子で、図３
に示すように本体９の内面と振動板４との間に複数個放
射状に取付けられ、振動板４を円周方向より振動するも
のである。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a fine fuel injection nozzle according to a first embodiment of the present invention, showing the nozzle portion in cross section. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is taken along line BB.
FIG. In these figures, 1 is a fuel pipe through which the fuel 2 is guided. Reference numeral 3 denotes a conical cone part, and a supporting member 8 is attached to an end portion of the fuel pipe 3 as shown in FIG. Reference numeral 4 denotes a vibration plate, which has a cylindrical shape in which the tip is tapered toward the tip. 5 is atomized fuel described later, 6 is air flowing into the nozzle, 7 is a fuel / air mixing region (ignition, fire region), 9 is a nozzle body, 10 is an ultrasonic transducer, and FIG.
As shown in FIG. 3, a plurality of radial attachments are provided between the inner surface of the main body 9 and the vibration plate 4, and the vibration plate 4 is vibrated in the circumferential direction.
【００１３】次に、このような構成での作用を説明す
る。燃料管１を通って来た燃料２は、円錐コーン部品３
によって円錐状に放射される。放射された燃料２は、振
動板４の周面に当たり、微粒化される。微粒化された燃
料５は、振動板４が先細の円筒形状であるのでノズル流
入空気６により、効率良く下流へ運ばれ、燃料気化さ
れ、コントロールされた燃料／空気混合比の領域７で通
常の着火方法により火災が形成される。Next, the operation of this structure will be described. The fuel 2 coming through the fuel pipe 1 is a conical cone part 3
Is emitted in a conical shape by. The radiated fuel 2 hits the peripheral surface of the vibration plate 4 and is atomized. Since the vibrating plate 4 has a tapered cylindrical shape, the atomized fuel 5 is efficiently carried to the downstream by the air 6 flowing into the nozzle, the fuel is vaporized, and the fuel 5 in the controlled fuel / air mixture ratio region 7 is normally used. A fire is formed by the ignition method.
【００１４】振動板４は、先端部へ向かって細くなる円
錐形状で本体９の間に磁気ひずみ効果を用いた超音波振
動子１０が接続されており、この振動板４が振動するこ
とにより、放射状に振動する。この振動している円錐状
の振動板に燃料２の液滴がぶつかり、液滴を高周波の振
動で分解して微粒化させる。なお、燃料流量に応じて振
動板の周波数を変え、最適の周波数で安定化した液滴の
径を得ることができる。The vibrating plate 4 has a conical shape that narrows toward the tip, and an ultrasonic vibrator 10 using the magnetostrictive effect is connected between the main bodies 9. By vibrating the vibrating plate 4, It vibrates radially. Droplets of the fuel 2 collide with the vibrating conical vibration plate, and the droplets are decomposed by high-frequency vibration to be atomized. The frequency of the diaphragm can be changed according to the fuel flow rate to obtain a stabilized droplet diameter at the optimum frequency.
【００１５】このように燃料が微粒化され、均一で安定
した粒径を得ることができるので、燃料流量が変化して
も安定した高負荷燃焼が可能になり未燃物も減少するも
のである。Since the fuel is atomized in this way and a uniform and stable particle size can be obtained, stable high-load combustion is possible even if the fuel flow rate changes, and the amount of unburned material also decreases. .
【００１６】図４は本発明の第２実施例に係る微粒燃料
噴射ノズルの断面図を示す。第１実施例と異なる所は、
超音波振動子に円筒状のＰＺＴ（ジルコン・チタン酸
鉛）セラミックス１１を用いたものであり、その他の構
成は図１に示す第１実施例と同じであるので説明は省略
する。FIG. 4 shows a sectional view of a fine fuel injection nozzle according to a second embodiment of the present invention. The difference from the first embodiment is that
The ultrasonic vibrator uses cylindrical PZT (zircon / lead titanate) ceramics 11, and the other structure is the same as that of the first embodiment shown in FIG.
【００１７】図５は図４におけるＣ−Ｃ断面図であり、
振動板４は本体９の周面に取付けられたＰＺＴセラミッ
クス１１の超音波振動子で接続され、振動が与えられる
構成を示している。FIG. 5 is a sectional view taken along line CC of FIG.
The vibrating plate 4 is connected by an ultrasonic transducer of PZT ceramics 11 attached to the peripheral surface of the main body 9 to give a vibration.
【００１８】本第２実施例の作用は前述の第１実施例と
同じであり、同様の効果も奏するので説明は省略する。The operation of the second embodiment is the same as that of the first embodiment described above, and since the same effect is obtained, the description thereof will be omitted.
【００１９】[0019]
【発明の効果】以上、具体的に説明したように、本発明
においては、ノズル本体内に円錐形部材を設けて燃料を
円錐状に放射し、先細の円筒形状の振動板の内壁面に衝
突させると共に、超音波振動子を設けて振動板を振動し
て燃料液滴を微粒化するようにしたので、燃料の微粒化
が均一化され、安定した粒径となることにより、燃料流
量が変化しても安定した高負荷燃焼が可能になり、未燃
物（ＣＯ、すす等）が減少するものである。As described above in detail, in the present invention, the conical member is provided in the nozzle body to radiate the fuel in a conical shape and collide with the inner wall surface of the tapered cylindrical diaphragm. At the same time, an ultrasonic vibrator was installed to vibrate the vibrating plate to atomize the fuel droplets, so the atomization of the fuel was made uniform, and the stable particle size was obtained, resulting in a change in the fuel flow rate. Even if it is, stable high-load combustion becomes possible, and unburned substances (CO, soot, etc.) are reduced.
【図１】本発明の第１実施例に係る微粒燃料噴射ノズル
の断面図である。FIG. 1 is a sectional view of a fine particle fuel injection nozzle according to a first embodiment of the present invention.
【図２】図１におけるＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA in FIG.
【図３】図１におけるＢ−Ｂ断面図である。FIG. 3 is a sectional view taken along line BB in FIG.
【図４】本発明の第２実施例に係る微粒燃料噴射ノズル
の断面図である。FIG. 4 is a sectional view of a fine fuel injection nozzle according to a second embodiment of the present invention.
【図５】図４のＣ−Ｃ断面図である。5 is a cross-sectional view taken along line CC of FIG.
【図６】従来の気流微粒化噴射弁方式ノズルの概略断面
図である。FIG. 6 is a schematic sectional view of a conventional airflow atomizing injection valve type nozzle.
【図７】従来の圧力噴射弁／スワーラ方式ノズルの概略
断面図である。FIG. 7 is a schematic cross-sectional view of a conventional pressure injection valve / swirl type nozzle.
【図８】従来の蒸発管方式ノズルの概略断面図である。FIG. 8 is a schematic sectional view of a conventional evaporation tube type nozzle.
１ 燃料管 ２ 燃料 ３ 円錐コーン部品 ４ 振動板 ５ 微粒化された燃料 ６ ノズル流入空気 ７ 燃料／空気混合領域 ８ 支持材 ９ ノズル本体 １０ 超音波振動子 １１ ＰＺＴセラミックス振動子 DESCRIPTION OF SYMBOLS 1 Fuel pipe 2 Fuel 3 Conical cone component 4 Vibration plate 5 Atomized fuel 6 Nozzle inflow air 7 Fuel / air mixing area 8 Support material 9 Nozzle body 10 Ultrasonic transducer 11 PZT ceramics oscillator
Claims (1)
燃料管の先端に取付けられ、燃料を同燃料管から円錐状
に放射させて前記ノズル本体内へ導く円錐形部材と、前
記ノズル本体内で燃料噴射方向に向かって細くなる円筒
形状で、前記円錐形部材から導かれる燃料を衝突させて
微粒化して進行方向に導く振動板と、同振動板を振動さ
せる超音波振動子とを具備してなることを特徴とする微
粒燃料噴射ノズル。1. A fuel pipe for guiding fuel into a nozzle body, a conical member attached to a tip of the fuel pipe, and conically radiating fuel from the fuel pipe into the nozzle body, and the nozzle. A vibrating plate having a cylindrical shape that narrows toward the fuel injection direction in the main body, collides fuel guided from the conical member and atomizes it into the traveling direction, and an ultrasonic vibrator that vibrates the vibrating plate. A fine fuel injection nozzle, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06096094A JP3192864B2 (en) | 1994-03-30 | 1994-03-30 | Fine fuel injection nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06096094A JP3192864B2 (en) | 1994-03-30 | 1994-03-30 | Fine fuel injection nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07269866A true JPH07269866A (en) | 1995-10-20 |
| JP3192864B2 JP3192864B2 (en) | 2001-07-30 |
Family
ID=13157490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06096094A Expired - Fee Related JP3192864B2 (en) | 1994-03-30 | 1994-03-30 | Fine fuel injection nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3192864B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185196A (en) * | 1996-12-19 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Prevaporization and premixing structure for liquid fuel in gas turbine combustor |
| WO2000001940A1 (en) * | 1998-07-01 | 2000-01-13 | Omarsson Kristjan Bjorn | Fuel-air mixture apparatus |
| CN103775262A (en) * | 2013-05-24 | 2014-05-07 | 王淼 | Efficient mass transfer device of fuel engine |
| CN105443276A (en) * | 2014-09-02 | 2016-03-30 | 王淼 | Efficient mass transfer device of fuel engine |
| CN110105996A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device to freeze and its method of fissioning |
| CN110105997A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission terminal and its method of fissioning |
| CN110105998A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device and its method of fissioning |
| CN110102243A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission gas-liquid converting system and its method of fissioning |
| CN110105999A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device to freeze and method of fissioning |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615741B (en) * | 2013-11-12 | 2015-05-20 | 清华大学 | Heat protection method for injection support plate of scramjet engine by utilizing sweat and impingement cooling |
-
1994
- 1994-03-30 JP JP06096094A patent/JP3192864B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185196A (en) * | 1996-12-19 | 1998-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Prevaporization and premixing structure for liquid fuel in gas turbine combustor |
| WO2000001940A1 (en) * | 1998-07-01 | 2000-01-13 | Omarsson Kristjan Bjorn | Fuel-air mixture apparatus |
| US6758461B1 (en) * | 1998-07-01 | 2004-07-06 | Kristian Bjorn Omarsson | Fuel-air mixture apparatus |
| CN103775262A (en) * | 2013-05-24 | 2014-05-07 | 王淼 | Efficient mass transfer device of fuel engine |
| CN105443276A (en) * | 2014-09-02 | 2016-03-30 | 王淼 | Efficient mass transfer device of fuel engine |
| CN110105996A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device to freeze and its method of fissioning |
| CN110105997A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission terminal and its method of fissioning |
| CN110105998A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device and its method of fissioning |
| CN110102243A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission gas-liquid converting system and its method of fissioning |
| CN110105999A (en) * | 2019-03-28 | 2019-08-09 | 万荣金坦能源科技有限公司 | A kind of liquid fuel extruding fission device to freeze and method of fissioning |
| CN110102243B (en) * | 2019-03-28 | 2023-05-23 | 万荣金坦能源科技有限公司 | Liquid fuel puffing fission gas-liquid conversion system and fission method thereof |
| CN110105999B (en) * | 2019-03-28 | 2023-07-07 | 万荣金坦能源科技有限公司 | Liquid fuel puffing fission device capable of refrigerating and fission method |
| CN110105996B (en) * | 2019-03-28 | 2023-07-11 | 万荣金坦能源科技有限公司 | Liquid fuel puffing fission device capable of refrigerating and fission method thereof |
| CN110105998B (en) * | 2019-03-28 | 2023-07-14 | 万荣金坦能源科技有限公司 | Liquid fuel puffing fission device and fission method thereof |
| CN110105997B (en) * | 2019-03-28 | 2023-07-14 | 万荣金坦能源科技有限公司 | Liquid fuel puffing fission terminal and fission method thereof |
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| Publication number | Publication date |
|---|---|
| JP3192864B2 (en) | 2001-07-30 |
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