JPH0663619B2 - Two-fluid injection device in spray combustion device - Google Patents
Two-fluid injection device in spray combustion deviceInfo
- Publication number
- JPH0663619B2 JPH0663619B2 JP61049469A JP4946986A JPH0663619B2 JP H0663619 B2 JPH0663619 B2 JP H0663619B2 JP 61049469 A JP61049469 A JP 61049469A JP 4946986 A JP4946986 A JP 4946986A JP H0663619 B2 JPH0663619 B2 JP H0663619B2
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- Prior art keywords
- fuel
- air flow
- fluid
- orifice
- combustion
- Prior art date
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- Nozzles For Spraying Of Liquid Fuel (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、噴霧式燃焼装置、特に車載用の小型の噴霧式
燃焼装置における２流体噴射装置に関する。The present invention relates to a spray type combustion device, and more particularly to a two-fluid injection device in a small-sized spray type combustion device mounted on a vehicle.
＜従来の技術＞ 車載用の小型の噴霧式燃焼装置は、特願昭60−217549号
（特開昭62−77522号公報）の第１図に開示されている
ように、燃焼用空気流が導入されて軸芯の回りに旋回す
る円筒状の旋回室の一端側に、他端側へ流体燃料を噴霧
する２流体噴射装置を設け、旋回室の他端側に燃焼室を
連設している。<Prior Art> As disclosed in FIG. 1 of Japanese Patent Application No. 60-217549 (Japanese Patent Application Laid-Open No. 62-77522), a small-sized spray type combustion device mounted on a vehicle has a combustion air flow. A two-fluid injection device that sprays fluid fuel to the other end is provided at one end of a cylindrical swirl chamber that is introduced and swirls around the axis, and a combustion chamber is continuously provided at the other end of the swirl chamber. There is.
２流体噴射装置は、流体燃料が先端開口から噴出する燃
料ノズルを空気通路の軸芯位置に配置し、燃料ノズルの
噴出端を、空気通路の先端に設けたオリフィスの開口に
対面させ、燃料ノズルの噴出端から噴出する流体燃料
を、燃料ノズルの外側位置を燃料ノズルの噴出方向に流
れる空気流によって微粒化する構成にしている。In the two-fluid injection device, a fuel nozzle for ejecting fluid fuel from a tip opening is arranged at the axial center position of the air passage, and the ejection end of the fuel nozzle faces the opening of an orifice provided at the tip of the air passage. The fluid fuel ejected from the ejection end of is atomized by an air flow that flows outside the fuel nozzle in the ejection direction of the fuel nozzle.
＜発明が解決しようとする課題＞ ところが、上記の２流体噴射装置は、燃料の噴霧角度が
狭く、噴霧の貫徹力が強いので、噴霧の分散が悪く、燃
料噴霧と燃焼用空気流との混合が十分ではない。特に、
燃料の流量を多くすると、燃料噴霧の一部が燃焼せずに
燃焼室を通過することがある。反対に、燃料の流量を少
なくすると、燃料の噴霧が不安定になり、火炎が振動し
て吹し消えることがある。<Problems to be Solved by the Invention> However, in the above-mentioned two-fluid injection device, since the spray angle of fuel is narrow and the penetration force of the spray is strong, the dispersion of the spray is poor and the fuel spray and the combustion air flow are mixed. Is not enough. In particular,
When the flow rate of the fuel is increased, a part of the fuel spray may pass through the combustion chamber without burning. On the contrary, when the fuel flow rate is reduced, the fuel spray becomes unstable, and the flame may vibrate and blow off.
結局、燃焼が良好に行なわれる燃料流量の範囲が狭い。After all, the range of the fuel flow rate in which the combustion is favorably performed is narrow.
本発明の目的は、上記のような従来の課題を解決するこ
とである。An object of the present invention is to solve the above conventional problems.
＜課題を解決するための手段＞ 本発明は、燃焼用空気流が導入されて軸芯の回りに旋回
する円筒状の燃焼用空気流旋回室の一端側に、他端側へ
流体燃料を噴霧する２流体噴射装置を同芯状に設け、燃
焼用空気流旋回室の他端側に燃焼室を連設した噴霧式燃
焼装置において、 軸芯位置に、流体燃料が先端の開口から噴出する円筒状
の燃料噴出ニードルを設け、 微粒化用気流が導入されて燃料噴出ニードルの回りに上
記の燃焼用空気流と同方向に旋回する円筒状の微粒化気
流旋回室を形成し、 微粒化用気流旋回室の一端にオリフィスを燃料噴出ニー
ドルと同芯状に設け、オリフィスの開口に燃料噴出ニー
ドルの噴出端を挿入し、 燃料噴出ニードルの噴出端から噴出する流体燃料を、燃
料噴出ニードルの回りを旋回しつつオリフィスの開口か
ら噴出する微粒化用気流によって微粒化する構成にした
ことを特徴とする２流体噴射装置である。<Means for Solving the Problems> According to the present invention, a fluid fuel is sprayed to one end side and the other end side of a cylindrical combustion air flow swirl chamber in which a combustion air flow is introduced and swirls around an axis. In a spray type combustion device in which two fluid injection devices are concentrically arranged and a combustion chamber is connected to the other end of the combustion air flow swirl chamber, a cylinder in which fluid fuel is ejected from an opening at the tip at an axial center position. -Like fuel injection needle is provided, and the atomization airflow is introduced to form a cylindrical atomization airflow swirl chamber that swirls around the fuel injection needle in the same direction as the above combustion airflow. An orifice is provided concentrically with the fuel injection needle at one end of the swirl chamber, the injection end of the fuel injection needle is inserted into the opening of the orifice, and the fluid fuel ejected from the injection end of the fuel injection needle is passed around the fuel injection needle. From the opening of the orifice while swirling It has a configuration that atomized by atomizing air flow exiting a two-fluid jet apparatus characterized.
＜作用＞ 本発明においては、流体燃料は、燃料噴出ニードルの噴
出端から、燃焼用空気流が旋回する燃焼用空気流旋回室
に噴出し、燃料噴出ニードルの回りを燃焼用空気流と同
方向に旋回しつつオリフィスの開口から噴出する微粒化
用気流によって微粒化される。<Operation> In the present invention, the fluid fuel is ejected from the ejection end of the fuel ejection needle into the combustion air flow swirl chamber in which the combustion air flow swirls, and flows in the same direction as the combustion air flow around the fuel ejection needle. It is atomized by the atomizing air stream that is ejected from the opening of the orifice while swirling.
従って、流体燃料を微粒化する気流が燃焼用空気流と同
方向に旋回するので、燃料の噴霧が安定化し、噴霧の角
度が広くなって噴霧の貫徹力が弱くなり、噴霧の分散が
良くなり、燃料の噴霧が燃焼用空気流と混合し易くな
る。Therefore, the air flow that atomizes the fluid fuel swirls in the same direction as the combustion air flow, stabilizing the fuel spray, widening the spray angle, weakening the penetration force of the spray, and improving the dispersion of the spray. , The fuel spray mixes more easily with the combustion air stream.
燃料の流量を多くしても、燃料噴霧の一部が燃焼せずに
燃焼室を通過することがない。また、燃料の噴霧が安定
化するので、燃料の流量を少なくしても、燃料の噴霧な
いし火炎が振動したり、火炎が吹き消えることがない。Even if the flow rate of the fuel is increased, a part of the fuel spray does not pass through the combustion chamber without burning. Further, since the fuel spray is stabilized, the fuel spray or flame does not vibrate or blow out even if the flow rate of the fuel is reduced.
＜発明の効果＞ 本発明においては、燃料流量の広い範囲にわたって、燃
焼が良好に行なわれる。<Effects of the Invention> In the present invention, combustion is favorably performed over a wide range of fuel flow rate.
＜実施例＞ 本例の２流体噴射装置を備えた噴霧式燃焼装置は、第１
図に示すように、旋回器（１）の中心部に形成された円
筒形状の燃焼用空気流旋回室（２）の一端に、他端側へ
液体燃料を噴霧する２流体噴射装置（11）を同芯状に設
け、燃焼用空気流旋回室（２）の他端側に、第１絞り
（20）を介して旋回室（２）より大径の円筒形状の第１
燃焼室（21）を同芯状に連設している。第１燃焼室（2
1）の中心部即ち２流体噴射装置（11）の燃料噴霧領域
には、点火栓（22）の先端の点火部を突出し、点火栓
（22）の基端の端子に点火源（23）を接続している。第
１燃焼室（21）の出口には、第２絞り（24）を介して第
１燃焼室（21）と同径の円筒形状の第２燃焼室（25）を
同芯状に連設している。<Example> The atomization type combustion apparatus provided with the two-fluid injection apparatus of this example is the first
As shown in the figure, a two-fluid injection device (11) for spraying liquid fuel to one end of a cylindrical combustion air flow swirl chamber (2) formed in the center of a swirler (1) Are provided concentrically, and a first cylindrical shape having a diameter larger than that of the swirl chamber (2) is provided on the other end side of the combustion air flow swirl chamber (2) through the first throttle (20).
The combustion chamber (21) is concentrically connected. First combustion chamber (2
In the central portion of 1), that is, in the fuel spray region of the two-fluid injection device (11), the ignition part at the tip of the spark plug (22) is projected, and the ignition source (23) is connected to the terminal at the base end of the spark plug (22). Connected. At the outlet of the first combustion chamber (21), a cylindrical second combustion chamber (25) having the same diameter as that of the first combustion chamber (21) is concentrically connected via a second throttle (24). ing.
旋回器（１）は、第１図と第２図に示すように、燃焼用
空気流旋回室（２）の周壁を形成している内周壁（３）
とその外回り位置に同芯状に配置した円筒形状の外周壁
（４）の前後端に前端板（５）と後端板（６）を設け
て、円環状の空気旋回路（７）を形成し、外周壁（４）
の一個所にその個所の接線方向に沿つて空気導入管
（８）を接続して、空気旋回路（７）に接続した空気導
入路（８）を形成し、空気導入路（８）に空気供給源
（９）を接続し、内周壁（３）の４個所に、それぞれ、
その個所の内周面の接線方向に沿つて空気導入孔（10）
を貫設して、空気旋回路（７）を燃焼用空気流旋回室
（２）に接続し、燃焼用空気流旋回室（２）にその軸芯
の回りに旋回する燃焼用空気流を導入する構成にしてい
る。The swirler (1), as shown in FIGS. 1 and 2, has an inner peripheral wall (3) forming a peripheral wall of a combustion air flow swirl chamber (2).
And a front end plate (5) and a rear end plate (6) are provided at the front and rear ends of a cylindrical outer peripheral wall (4) arranged concentrically around the outer peripheral position thereof to form an annular pneumatic circuit (7). And outer wall (4)
An air introduction pipe (8) is connected to one location along the tangential direction of the location to form an air introduction path (8) connected to the air swirl circuit (7), and air is introduced into the air introduction path (8). Connect the supply source (9) to each of the four locations on the inner wall (3),
Air introduction hole (10) along the tangential direction of the inner peripheral surface of the location
To connect the air swirl circuit (7) to the combustion air flow swirl chamber (2) and introduce the combustion air flow swirling around its axis into the combustion air flow swirl chamber (2). It is configured to
２流体噴射装置（11）は、第１図に示すように、噴射側
の先端部を燃焼用空気流旋回室（２）の後端板（６）の
中心孔に貫着しており、燃料供給源（12）に接続した燃
料供給路（13）からの液体燃料を、空気供給源（９）に
接続した空気供給路（14）からの空気流によつて微粒化
する２流体噴霧形である。第３図と第４図に示すよう
に、燃料供給路（13）に接続した円筒状の燃料噴出ニー
ドル（15）を軸芯位置に配置し、燃料噴出ニードル（1
5）の回りに円筒形状の微粒化用気流旋回室（16）を同
芯状に形成している。微粒化用気流旋回室（16）の周壁
（17）の４個所には、それぞれ、その個所の内周面の接
線方向に沿つて空気導入孔（18）を、燃焼用空気流旋回
室（２）の空気導入孔（10）と同じ向きに貫設して、微
粒化用気流旋回室（16）に空気供給路（14）を接続し、
微粒化用気流旋回室（16）にその軸芯位置の燃料噴出ニ
ードル（15）の回りに燃焼用空気流と同方向に旋回する
微粒化用空気流を導入する構成にしている。微粒化用気
流旋回室（16）の先端には、オリフイス（19）を同芯状
に設け、オリフイス（19）の先細状の開口に燃料噴出ニ
ードル（15）の噴出端を挿入して、燃料噴出ニードル
（15）の噴出端から噴出する液体燃料を、燃料噴出ニー
ドル（15）の回りを旋回しつつオリフイス（19）の開口
から噴出する微粒化用空気流によつて微粒化する構成に
している。As shown in FIG. 1, in the two-fluid injection device (11), the tip end on the injection side penetrates the center hole of the rear end plate (6) of the combustion air flow swirl chamber (2), In the two-fluid atomization form, the liquid fuel from the fuel supply passage (13) connected to the supply source (12) is atomized by the air flow from the air supply passage (14) connected to the air supply source (9). is there. As shown in FIG. 3 and FIG. 4, the cylindrical fuel injection needle (15) connected to the fuel supply passage (13) is arranged at the axial center position, and the fuel injection needle (1
A cylindrical atomization air flow swirl chamber (16) is formed concentrically around (5). An air introduction hole (18) is provided at each of four locations on the peripheral wall (17) of the atomization air flow swirl chamber (16) along the tangential direction of the inner peripheral surface of the location, and a combustion air flow swirl chamber (2). ) Through the same direction as the air introduction hole (10), connect the air supply passage (14) to the atomization air flow swirl chamber (16),
The atomization air flow swirl chamber (16) has a structure in which the atomization air flow swirling in the same direction as the combustion air flow is introduced around the fuel injection needle (15) at the axial center position. An orifice (19) is concentrically provided at the tip of the atomizing air flow swirl chamber (16), and the injection end of the fuel injection needle (15) is inserted into the tapered opening of the orifice (19) to remove the fuel. The liquid fuel ejected from the ejection end of the ejection needle (15) is atomized by the atomizing air flow ejected from the opening of the orifice (19) while swirling around the fuel ejection needle (15). There is.
なお、本例の噴霧式燃焼装置は、燃焼室（21），（25）
に熱交換器（26）を被嵌してカーヒータを構成してい
る。In addition, the atomization type combustion device of the present example has a combustion chamber (21),
A heat exchanger (26) is fitted over the to form a car heater.
熱交換器（26）は、第１図に示すように、第１燃焼室
（21）と第２燃焼室（25）に円筒容器形状の器体（27）
を被嵌し、器体（27）と第1,第２燃焼室（21），（25）
の間に、第２燃焼室（25）の出口に連通したガス通路
（28）を形成し、器体（27）内周面の第２燃焼室（25）
外回り位置に多数枚の熱交換用フイン（29）を等間隔に
軸芯方向に沿つて設け、器体（27）の第１燃焼室（21）
側部分にガス通路（28）の出口（30）を設けている。器
体（27）の第２燃焼室（25）側部分は、二重容器形状に
形成して、流体通路（31）を形成し、流体通路（31）の
内周面に螺旋状の熱交換用フイン（32）を設け、流体通
路（31）の一端と他端に入口（33）と出口（34）を設け
ている。As shown in FIG. 1, the heat exchanger (26) has a cylindrical container-shaped container (27) in the first combustion chamber (21) and the second combustion chamber (25).
Is fitted to the body (27) and the first and second combustion chambers (21) and (25).
A gas passage (28) communicating with the outlet of the second combustion chamber (25) is formed between the second combustion chamber (25) and the inner peripheral surface of the container (27).
A large number of heat exchange fins (29) are provided at outer circumferential positions at equal intervals along the axial direction, and the first combustion chamber (21) of the body (27) is provided.
An outlet (30) for the gas passage (28) is provided in the side portion. The second combustion chamber (25) side portion of the body (27) is formed in a double container shape to form a fluid passage (31), and a spiral heat exchange is formed on the inner peripheral surface of the fluid passage (31). A fin (32) is provided, and an inlet (33) and an outlet (34) are provided at one end and the other end of the fluid passageway (31).
なお、流体通路の入口（33）には流体供給源を、流体通
路の出口（34）には放燃器をそれぞれ接続する。A fluid supply source is connected to the inlet (33) of the fluid passage, and a combustor is connected to the outlet (34) of the fluid passage.
本例の噴霧式燃焼装置を作動すると、燃焼用空気流旋回
室（２）にその軸芯の回りに旋回する燃焼用空気流が導
入され、２流体噴射装置（11）から燃焼用空気流旋回室
（２）の旋回空気流の中心部に軽油や灯油又はガソリン
のような液体燃料が噴霧され、噴霧燃料と旋回空気の混
合気流が燃焼用空気流旋回室（２）から第１絞り（20）
を経て第１燃焼室（21）に流入し、点火栓（22）によつ
て点火されて燃焼し、燃焼の火炎が第１燃焼室（21）か
ら第２絞り（24）を経て第２燃焼室（25）に流入し、燃
焼の排ガスが第２燃焼室（25）からガス通路（28）に流
入し、ガス通路の熱交換用フイン（29）や器体（27）を
加熱して、出口（30）から排出される。一方、流体通路
の入口（33）に供給された水や空気のような流体は、流
体通路（31）に流入し、流体通路の熱交換用フイン（3
2）と器体（27）によつて加熱され、高温になつて、出
口（34）から流出する。When the spray combustion device of this example is operated, a combustion air flow swirling around its axis is introduced into the combustion air flow swirl chamber (2), and the combustion air flow swirl from the two-fluid injection device (11). A liquid fuel such as light oil, kerosene or gasoline is sprayed at the center of the swirling air flow in the chamber (2), and a mixed air flow of atomized fuel and swirling air flows from the combustion air flow swirl chamber (2) to the first throttle (20). )
Flows into the first combustion chamber (21) through the spark plug, and is ignited by the spark plug (22) to burn, and the flame of combustion goes from the first combustion chamber (21) through the second throttle (24) to the second combustion chamber. The combustion exhaust gas flows into the chamber (25) and flows into the gas passage (28) from the second combustion chamber (25) to heat the heat exchange fins (29) and the body (27) of the gas passage, It is discharged from the outlet (30). On the other hand, a fluid such as water or air supplied to the inlet (33) of the fluid passage flows into the fluid passage (31), and the heat exchange fin (3
2) and the body (27) heat it, and it becomes high temperature and flows out from the outlet (34).
本例の２流体噴射装置（11）においては、オリフイス
（19）の開口の微粒化用空気流通過面積を燃料噴出ニー
ドル（15）の噴出端の開口面積の８倍以上で40倍以下に
設定している。この設定範囲内であると、微粒化用空気
流の流量を必要最少限にして、燃料の噴霧ないし火炎を
安定化することができる。In the two-fluid injection device (11) of this example, the atomization air flow passage area of the orifice (19) opening is set to 8 times or more and 40 times or less than the opening area of the injection end of the fuel injection needle (15). is doing. Within this set range, it is possible to stabilize the atomization of fuel or the flame by minimizing the flow rate of the atomizing air flow.
また、燃料噴出ニードル（15）の噴出端の開口径を0.4m
m以下に設定している。この設定範囲内であると、燃料
の流量を0.01cc／secという微少量にしても、燃料の噴
霧が振動せず安定する。Also, make the opening diameter of the injection end of the fuel injection needle (15) 0.4 m.
It is set to m or less. Within this setting range, even if the fuel flow rate is as small as 0.01 cc / sec, the fuel spray is stable without vibration.
また、燃料噴出ニードル（15）の噴出端をオリフイス
（19）の面から突出し、オリフイス（19）の開口から噴
出する微粒化用空気流の縮流部に配置している。このよ
うに配置すると、燃料噴出ニードル（15）の噴出端から
噴出する燃料は、オリフイス（19）の開口から噴出する
微粒化用空気流に円滑に混合して搬送され、燃料の噴霧
が安定化すると共に微粒化が良好に行なわれる。また、
燃料の噴霧がオリフイス（19）に付着して炭化すること
がない。Further, the ejection end of the fuel ejection needle (15) is arranged at the contraction portion of the atomizing air flow ejected from the opening of the orifice (19), projecting from the surface of the orifice (19). With this arrangement, the fuel ejected from the ejection end of the fuel ejection needle (15) is smoothly mixed with the atomizing air flow ejected from the opening of the orifice (19) and conveyed, and the fuel spray is stabilized. At the same time, atomization is performed well. Also,
Fuel spray does not adhere to the orifice (19) and carbonize.
上記の実施例の２流体噴射装置（11）においては、微粒
化用気流旋回室（16）の周壁（17）の数個所にその個所
の内周面の接続方向に沿つて貫設した空気導入孔（18）
は、第３図と第４図に示すように、微粒化用気流旋回室
（16）の径方向と平行しているが、第５図と第６図に示
すように、斜行してもよい。In the two-fluid injection device (11) of the above-described embodiment, the air introduction is provided at several locations on the peripheral wall (17) of the atomization air flow swirl chamber (16) along the connecting direction of the inner peripheral surface of the location. Holes (18)
Is parallel to the radial direction of the atomization air flow swirl chamber (16) as shown in FIGS. 3 and 4, but as shown in FIG. 5 and FIG. Good.
第１図は、本発明の実施例の２流体噴射装置を備えた噴
霧式燃焼装置の縦断側面図である。 第２図は、第１図のII−II線断面図である。 第３図は、同例の２流体噴射装置の一部拡大縦断側面図
である。 第４図は、第３図のIV−IV線断面図である。 第５図は、他の実施例の２流体噴射装置の一部拡大縦断
側面図である。 第６図は、第５図のVI−VI線断面図である。 2:燃焼用空気流旋回室 11:2流体噴射装置 15:燃料噴出ニードル 16:微粒化用気流旋回室 19:オリフイス、21:第１燃焼室 25:第２燃焼室FIG. 1 is a vertical cross-sectional side view of a spray-type combustion device equipped with a two-fluid injection device according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a partially enlarged vertical side view of the two-fluid ejecting apparatus of the same example. FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 5 is a partially enlarged vertical side view of a two-fluid ejecting device of another embodiment. FIG. 6 is a sectional view taken along line VI-VI in FIG. 2: Combustion air flow swirl chamber 11: 2 Fluid injection device 15: Fuel injection needle 16: Atomization air flow swirl chamber 19: Orifice, 21: First combustion chamber 25: Second combustion chamber
Claims (4)
回する円筒状の焼燃用空気流旋回室の一端側に、他端側
へ流体燃料を噴霧する２流体噴射装置を同芯状に設け、
燃焼用空気流旋回室の他端側に燃焼室を連設した噴霧式
燃焼装置において、 軸芯位置に、流体燃料が先端の開口から噴出する円筒状
の燃料噴出ニードルを設け、 微粒化用気流が導入されて燃料噴出ニードルの回りに上
記の燃焼用空気流と同方向に旋回する円筒状の微粒化用
気流旋回室を形成し、 微粒化用気流旋回室の一端にオリフィスを燃料噴出ニー
ドルと同芯状に設け、オリフィスの開口に燃料噴出ニー
ドルの噴出端を挿入し、 燃料噴出ニードルの噴出端から噴出する流体燃料を、燃
料噴出ニードルの回りを旋回しつつオリフィスの開口か
ら噴出する微粒化用気流によって微粒化する構成にした
ことを特徴とする２流体噴射装置。1. A two-fluid injection device for spraying fluid fuel to one end of a cylindrical combustion air flow swirl chamber, into which a combustion air flow is introduced and swirls around an axis. Provided in a core,
In a spray-type combustor in which a combustion chamber is connected to the other end of the combustion air flow swirl chamber, a cylindrical fuel injection needle that ejects fluid fuel from the opening at the tip is provided at the axial center position, Is introduced to form a cylindrical atomization air flow swirl chamber that swirls in the same direction as the combustion air flow around the fuel injection needle, and an orifice is provided at one end of the atomization air flow swirl chamber as a fuel injection needle. It is concentric and inserts the jet end of the fuel jet needle into the opening of the orifice, and atomizes the fluid fuel jetted from the jet end of the fuel jet needle from the orifice opening while swirling around the fuel jet needle. A two-fluid ejecting device characterized in that it is atomized by an air flow for use.
を燃料噴出ニードルの噴出端の開口面積の８倍以上で40
倍以下に設定したことを特徴とする特許請求の範囲第１
項記載の２流体噴射装置。2. The atomization air flow passage area of the orifice opening is 40 times or more than the opening area of the injection end of the fuel injection needle.
Claim 1 characterized in that it is set to less than or equal to 2
Item 2. A two-fluid ejecting apparatus.
m以下に設定したことを特徴とする特許請求の範囲第１
項又は第２項記載の２流体噴射装置。3. The opening diameter of the injection end of the fuel injection needle is 0.4 m.
Claim 1 characterized in that it is set to m or less
Item 2. The two-fluid ejecting device according to Item 2.
の面から突出して、オリフィスの開口から噴出する微粒
化用気流の縮流部に配置したことを特徴とする特許請求
の範囲第１項、第２項又は第３項記載の２流体噴射装
置。4. The jetting end of the fuel jetting needle is arranged at a contraction portion of the atomizing air stream jetted from the opening of the orifice so as to project from the surface of the orifice. The two-fluid ejecting device according to the second or third aspect.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61049469A JPH0663619B2 (en) | 1986-03-06 | 1986-03-06 | Two-fluid injection device in spray combustion device |
| CA000519274A CA1285207C (en) | 1985-09-30 | 1986-09-29 | Fuel spray combustion device |
| US06/913,378 US4850195A (en) | 1985-09-30 | 1986-09-30 | Fuel spray combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61049469A JPH0663619B2 (en) | 1986-03-06 | 1986-03-06 | Two-fluid injection device in spray combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62206311A JPS62206311A (en) | 1987-09-10 |
| JPH0663619B2 true JPH0663619B2 (en) | 1994-08-22 |
Family
ID=12832001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61049469A Expired - Fee Related JPH0663619B2 (en) | 1985-09-30 | 1986-03-06 | Two-fluid injection device in spray combustion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0663619B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814325Y2 (en) * | 1979-08-28 | 1983-03-22 | 株式会社明電舎 | Optical fiber connection device |
-
1986
- 1986-03-06 JP JP61049469A patent/JPH0663619B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62206311A (en) | 1987-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |