JPS59120715A - Variable ejector - Google Patents

Variable ejector

Info

Publication number
JPS59120715A
JPS59120715A JP57229740A JP22974082A JPS59120715A JP S59120715 A JPS59120715 A JP S59120715A JP 57229740 A JP57229740 A JP 57229740A JP 22974082 A JP22974082 A JP 22974082A JP S59120715 A JPS59120715 A JP S59120715A
Authority
JP
Japan
Prior art keywords
ejector
injection nozzle
gap
cavity
engine
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.)
Pending
Application number
JP57229740A
Other languages
Japanese (ja)
Inventor
Gunji Shibata
柴田 軍次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
Hino Jidosha Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hino Motors Ltd, Hino Jidosha Kogyo KK filed Critical Hino Motors Ltd
Priority to JP57229740A priority Critical patent/JPS59120715A/en
Publication of JPS59120715A publication Critical patent/JPS59120715A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0672Omega-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder center axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645Details related to the fuel injector or the fuel spray
    • F02B23/0648Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14Direct injection into combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621Squish flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645Details related to the fuel injector or the fuel spray
    • F02B23/0669Details related to the fuel injector or the fuel spray having multiple fuel spray jets per injector nozzle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE:To have optimum combusting condition throughout the speed range of an engine, by installing ejectors, of such a construction that two hollow cones surrounding the injection nozzle are placed in the cavity of the piston in such a way as piled one over the other with a gap between. CONSTITUTION:In the cavity of a piston 2, an ejector 6 is installed in such a position that the jetting fuel surrounding the jet 5a of injection nozzle 5 after being injected from this jet 5a remains still in a condition not mixed sufficiently. This ejector 6 has such a construction that two hollow cones, an outer 6a and an inner 6b, are pile one over the other with a gap 7 between, and the profile of this gap 7 in its axial direction shall have the form of a wing. That is, a flap 8a as curvature portion is formed on the nozzle 5 side while a shroud 8b as straight portion on the opposite side. Thereby the stream of the fuel jetting into said gap 7 is changed as well as the atomization is performed in further finer particles, to ensure that uniform combustion is attained throughout the range of engine operation.

Description

【発明の詳細な説明】 本発明は、ピストンの上方側に形成されたキャビティ内
に、噴射ノズルから、燃料ジェットするエンジンの上記
キャビティ内に上記燃料ジェットの噴流方向を変える翼
状の断面形状を有するエジェクタを移動自在に介設し、
エンジンの低高速時全域にわたり、良好な燃焼が得られ
るようにしたバリアプルエジェクタに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention has a wing-like cross-sectional shape in a cavity formed on the upper side of the piston to change the jet direction of the fuel jet from the injection nozzle into the cavity of the engine. A movable ejector is provided,
The present invention relates to a barrier pull ejector that allows good combustion to be achieved throughout the entire low and high speed range of the engine.

第1図に示す如く、シリンダブロック1内に挿設された
ピストン2の上方側にトヨ、円形状の凹部を2つ連設す
る断面形状を有するキャビティ3が形成され、シリンダ
ヘッド4との間に燃・焼室を形成している。この・燃・
焼室内にはシリ、ンダヘッド4側に設けられた噴射ノズ
ル5から・燃料ジェットが噴出される。
As shown in FIG. 1, a cavity 3 is formed above the piston 2 inserted into the cylinder block 1, and has a cross-sectional shape in which two circular recesses are connected. A combustion chamber is formed in the combustion chamber. This・burn・
A fuel jet is ejected from an injection nozzle 5 provided on the cylinder head 4 side in the combustion chamber.

一方、ピストン2の移動により、キャビティ3内には空
気の旋回、すなわ1−)スワールが生ずる。燃料ジェッ
トはこのスワールにより拡散され、キャビティ3内に広
がり、燃焼する。従って、従来より、エンジンの燃り尭
チューニングにおいては、燃焼室内に均一の燃・焼が得
られるように噴射ジェット5の方向、ぞの噴口の突出位
11グおよびキャビティの形状等を抽々倹討し、最:I
Mi条件を設定すべくしていた。しかし、上記のスワー
ルの状態は、エンジンの高速、低速で異なるため、その
全域にわたり、最適r(燃焼状態を保持することが困難
であった。噴射ノズル5の突出位1症をエンジンの運転
条件に合わせて、移動させることにより、燃焼状態を最
適のものに変えることが可能であるが、エンジン運転中
にかいて噴射ノズル5を移動することは技術的に困難の
問題が多く、実用化されていな力。そこで、エンジンの
低速、高速の全域にわたり、最適の燃焼チューニングが
可能で、かつ実用化し得る簡1更な手段が要請されてい
た。
On the other hand, the movement of the piston 2 causes air to swirl within the cavity 3, that is, a 1-) swirl. The fuel jet is diffused by this swirl, spreads into the cavity 3, and burns. Therefore, conventionally, in engine combustion tuning, the direction of the injection jet 5, the protrusion position of each nozzle, the shape of the cavity, etc. have been carefully selected in order to obtain uniform combustion within the combustion chamber. Defeat, most: I
I was trying to set Mi conditions. However, since the swirl state described above differs between high and low speeds of the engine, it was difficult to maintain the optimum combustion state over the entire range. It is possible to change the combustion state to the optimum by moving the injection nozzle 5 according to the engine operation, but there are many technical difficulties in moving the injection nozzle 5 while the engine is running, and it has not been put to practical use. Therefore, there was a need for a simple and practical means that would enable optimal combustion tuning over the entire range of low and high engine speeds.

本発明は、上記の要請に基づき考案されたものであり、
その目的は、エン、771氏高速の全域にわたり、最適
な燃焼状態が確保へれると共に、簡便の構成を有するバ
リアブルエンエクタを提(其すること(=ある、 本発明は、上記の目的を作成するために、上記ピストン
のキャビティ内に、噴射ノズルヲ囲み、ピストン移動方
向に移動自在に配設され、2個の截頭中空内錐体を空隙
部を隔てて二重に重ね合わせてなるエジェクタを設け、
該エジェクタの上記空隙部の断面形状を、上記噴射ノズ
ル側に洲形状の曲線部を形成せしめると共に、該曲線部
に接して反対側に直線状に広がる直線部とから形tff
lせしめ、上記噴射ノズルの燃料ジェットヲ上記エジェ
クタの一七酊シ曲線部および直線部を介して上記キャビ
ティ内に噴出せしd〕、かつ、エンジンの低速訃よび高
速に周期して、上記エジェクタを移動して、上記空隙部
内(;噴出された燃料ジェットの流れを変化すると共に
、噴霧な微粒化し、エンジンの全域にわたって均一の燃
焼が得られるように構成されたバリアブルエンエクタを
特徴としたものである。
The present invention was devised based on the above request,
The purpose of the present invention is to provide a variable engine extractor that can ensure an optimal combustion state over the entire range of engine and 771 degree high speeds and has a simple configuration. In order to do this, an ejector is provided in the cavity of the piston, surrounding the injection nozzle, movably in the direction of movement of the piston, and consisting of two truncated hollow cones stacked one on top of the other with a gap in between. established,
The cross-sectional shape of the void portion of the ejector is shaped like tff by forming a curved part in the shape of a slope on the side of the injection nozzle, and a straight part touching the curved part and extending linearly to the opposite side.
The fuel jet of the injection nozzle is injected into the cavity through the curved part and the straight part of the ejector, and the ejector is rotated at low and high speeds of the engine. It is characterized by a variable enector configured to move and change the flow of the ejected fuel jet (injected into the cavity), atomize the spray, and obtain uniform combustion over the entire area of the engine. be.

以下、本発明の一実施例を図面に基づいて説明する。Hereinafter, one embodiment of the present invention will be described based on the drawings.

第2図〉よび第:3図に示す如く、ビδトン2のキャビ
ティ3内には、噴射ノズル5の噴口5aを囲み、11ハ
ロ5αから噴射される燃料ジェットが未だ空気と十分混
合しない状態にある位置にエジェクタ6が介設される。
As shown in Figure 2 and Figure 3, the fuel jet surrounding the injection nozzle 5a of the injection nozzle 5 and injected from the 11 halo 5α is still not sufficiently mixed with the air in the cavity 3 of the bit 2. An ejector 6 is interposed at a position.

エジェクタ6は、外側の・截頭中空円錐体6αと内側の
威頭中空円珀体6bとを空隙部7を隔てて二重に東ね合
わせた形状を有し、その空隙部7の軸方向の断lnj形
状はすべ形状に形成されている。すなわち、噴射ノズル
5側には、楓形状の4に相当する曲線部であるフラップ
8α力(形成され、反対側には、このフラップ8αに接
すると共に、反対側に向って直線状に広がる直線部であ
るシュラウド8bか形成されている。従って、空隙部7
内に導入された・鉛料ンエソトは、フラップ8a(:Y
Iニアつて流れ、その狭隘部8α′で紋られた後、外側
の成り目中空円錐体6αのシュラウドs b (:+a
つて℃方向に拡散するものと、内側1戒頭中空円錐体6
bのシュラウド8bに市って?n方向に拡散するものと
、中央のn、方向に1員出するものとに分かれる。そし
て、エジェクタ6と噴射ノズル5の噴口5aとの相対位
置関係にエリ、燃料ジェットの主流が、上記必方向又は
−・7方向にイdってのみ流れるように選択調節するこ
とができる。
The ejector 6 has a shape in which an outer truncated hollow cone 6α and an inner truncated hollow cone 6b are twisted together with a cavity 7 in between, and the axial direction of the cavity 7 is The section lnj shape is formed into a smooth shape. That is, on the side of the injection nozzle 5, a flap 8α is formed, which is a curved part corresponding to the maple-shaped 4, and on the opposite side, there is a straight part that touches this flap 8α and spreads linearly toward the opposite side. The shroud 8b is formed as follows.Therefore, the cavity 7
The lead material introduced inside the flap 8a (:Y
After flowing along the narrow part 8α' of the narrow part 8α', the shroud s b (:+a
The one that spreads in the ℃ direction, and the inner 1 precept hollow cone 6
What is city on shroud 8b of b? It is divided into those that diffuse in the n direction and those that emit one member in the central n direction. The relative positional relationship between the ejector 6 and the injection port 5a of the injection nozzle 5 can be selectively adjusted so that the main flow of the fuel jet flows only in the above-mentioned direction or in the -7 direction.

外側の截頭中空円錐体6αと内側の截頭中空円錐体6b
とは、ブリラン9により結合されると共に、第4図にも
示す如く外側の截頭中空円錐体6αの外周側には、3個
の支持金具1oの一端側が等しい配置を保って因騎され
ている。
Outer truncated hollow cone 6α and inner truncated hollow cone 6b
are connected by a buriran 9, and as shown in FIG. 4, one end side of three supporting metal fittings 1o is mounted on the outer circumferential side of the outer truncated hollow cone body 6α while maintaining the same arrangement. There is.

支持金具10の他端側にはシリンダヘッド4を貫通して
挿設されたネジ棒11の一端側か係合し、ネジ俸11の
他端側は、第3図に示す如く、ナツト状部材]2に螺合
している。ナツト状1部材12は、シリンダヘッド41
に固青さ7″lまた支持骨13によって軸方向の移動が
拘束され、回転自在に支承される。父、ナツト状部材1
2には、詳細構成を明示していないが、こfv−を回転
制御する回転jlil+ (+Ta手段]4が係合して
いる。以上の(14成により、回転1■(]御手段14
の指示によりナツト状部材12が回転すると、ネジ1俸
11が移動し、これに係合するエジェクタ6が移動する
One end of a threaded rod 11 inserted through the cylinder head 4 is engaged with the other end of the support fitting 10, and the other end of the threaded rod 11 is fitted with a nut-shaped member as shown in FIG. ]2 is screwed together. The nut-shaped member 12 is a cylinder head 41
Furthermore, the axial movement is restrained by the support bone 13 and the nut-shaped member 1 is rotatably supported.
2 is engaged with a rotation jlil+ (+Ta means) 4 that rotationally controls this fv-, although the detailed configuration is not explicitly shown.With the above (14 configurations), the rotation 1 () control means 14 is engaged.
When the nut-shaped member 12 is rotated according to the instruction, the screw 11 moves, and the ejector 6 that engages with it moves.

次に、本実施例の作用を説明する。Next, the operation of this embodiment will be explained.

噴口5αからの燃料ジェットはニンニクタロ内にまき込
み導入されると狭隘部8α′にて紋られたのち、上記の
如くシュラウド8bに旧って流れる。この際、噴口5α
とエジェクタ6との位1嵯関係により、空隙部7内に静
圧の微妙な差が生じ、この静圧差により、燃料ジェット
は2方向又は・、7方向にrjdつて流れ、拡散しなが
ら方向を変化される。これは、コアンダ効果と称され、
公知技術とされている。
When the fuel jet from the nozzle 5α is introduced into the garlic taro, it is pierced at the narrow portion 8α′ and then flows to the shroud 8b as described above. At this time, the nozzle 5α
A slight difference in static pressure occurs in the cavity 7 due to the positional relationship between the ejector 6 and the ejector 6, and due to this static pressure difference, the fuel jet flows in two directions or seven directions, and changes direction while diffusing. be changed. This is called the Coanda effect,
It is considered a known technology.

一般に、エンジンが高速で、キャビティ3内に高速スワ
ールが生じているときは、2,7方向に浴って流れると
均一の噴霧が得られ、逆に低速スワールが生じている場
合には、2方向に市って流れると均一性が得られる。従
って、エジェクタ6を、上記の如く、エンジンの速度に
合わせて移動せしめることにより、λ方向又は121方
向、その中間方向等に変化せしめることができる。
Generally, when the engine is running at high speed and high-speed swirl is occurring in the cavity 3, a uniform spray can be obtained by flowing in directions 2 and 7; conversely, when low-speed swirl is occurring, Uniformity can be achieved by flowing in the same direction. Therefore, by moving the ejector 6 in accordance with the speed of the engine as described above, it is possible to change the ejector 6 to the λ direction, the 121 direction, an intermediate direction, or the like.

上記の微妙な静圧差は、エジェクタ6の円錐角噴口5α
との相対位置、翼形状等により微細に設定し得る。
The above subtle static pressure difference is caused by the conical angle nozzle 5α of the ejector 6.
It can be set finely by changing the relative position with respect to the blade, the shape of the blade, etc.

以上によって、エンジンの全域にわたり、均一の燃焼チ
ューニングをすることができる。
With the above, uniform combustion tuning can be performed over the entire area of the engine.

又、キャビティ3の壁形状を、エジェクタ6の噴射ノズ
ル5側の入口近傍の中心点15から等距離又は等ペネト
レーションにあるものに形   □成することにより、
エジェクタ6をあまり移動することなく、政調整により
、低高速全域にわたり、良好な燃焼が得られることが実
証されている。
Furthermore, by forming the wall shape of the cavity 3 to be equidistant or equipenetrated from the center point 15 near the inlet of the ejector 6 on the injection nozzle 5 side,
It has been demonstrated that good combustion can be obtained over the entire low and high speed range by adjusting the ejector 6 without moving it much.

又、エジェクタ6は、I5 t/14中空円錐体を二重
合せした比較的簡単のもので、内部のλ(形状も、非切
削手段で容易に製作し得るものであり、かつ、その移動
手段も簡単なもので、容易に裏作することがでへる。
Furthermore, the ejector 6 is a relatively simple one made by combining two I5 t/14 hollow cones, and the internal λ (shape) can be easily manufactured by non-cutting means. It is also simple and can be easily reproduced.

又、本実施例で、ネジ俸11の回転手段を示したが、勿
論これに限定するものでない、。
Further, although the present embodiment shows a means for rotating the screw barrel 11, it is of course not limited to this.

以上の説明によって明らかなり口く、本発明によれば、
エンジンの低高速の全域にわたり、最適な燃焼状態が確
保されると共に、簡便に製作し得る効果が上げられる。
According to the present invention, as is clear from the above description,
Optimum combustion conditions are ensured over the entire range of low and high speeds of the engine, and the effect of easy manufacture is achieved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はエンジンの燃焼室捷ゎりを示す断面図、第2図
は本発明の一実施例の主要部の詳細構造を示す部分断面
図、第3図は実施例の全体構成図、第4図は第2図示矢
Aのエジェクタのみを示す平面図である。 1・・・シリンダブロック 2・・°ピストン3・・・
キャビ−rイ   4・・・シリンダヘッド5゛・°噴
射ノズル   5α・・・Ill  lj6・・・エジ
ェクタ    6α・・・外側の截頭中空円錐体6b・
・・内側の截頭中空円錐体 7・・・空隙部     8a・・・フラップ8b・・
・シュラウド   8a′川狭用部9・・・ブリッジ 
   1o・・・支持金具11・・・ネジ俸     
12・・・ナツト状部材13・・・支持台     1
4川回転+f71J 1411手1段15・・・中心点
。 特許出願人  日野自動車工業株式会社オ・4図 10
Fig. 1 is a sectional view showing the combustion chamber movement of the engine, Fig. 2 is a partial sectional view showing the detailed structure of the main part of an embodiment of the present invention, Fig. 3 is an overall configuration diagram of the embodiment, and Fig. 4 The figure is a plan view showing only the ejector indicated by the second arrow A in the figure. 1...Cylinder block 2...°Piston 3...
Cabbie 4...Cylinder head 5゛・°Injection nozzle 5α...Ill lj6...Ejector 6α...Outer truncated hollow cone 6b.
・Inner truncated hollow cone 7 ・Void portion 8a ・Flap 8b ・・
・Shroud 8a' River narrow part 9...Bridge
1o...Supporting metal fitting 11...Screw head
12...Nut-shaped member 13...Support stand 1
4 river rotation + f71J 1411 move 1 step 15...center point. Patent applicant: Hino Motors Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] ピストン上方側に形成されたキャビティ内に、噴射ノズ
ルを囲み、上記ピストンの移動方向に移l((++自在
に配設され、2個の或檜中空円錐体を空隙部を隔てて二
重に重ね合わせて辰b5jさ几るエジェクタを設け、該
エジェクタの上記空隙部を形成する断面形状を上記噴射
ノズル側に列形状の曲線部を形成すると共に、上記曲線
部に接して反対側に直線状に広がる直線部を形11y−
+!ニジめ、上記噴射ノズルからの燃料ジェットを上記
エジェクタの空隙部を介して、上記キャビティ内に噴材
せしめるように構成されたバリアプルエジェクタ。
In the cavity formed on the upper side of the piston, surrounding the injection nozzle, two hollow conical bodies made of Japanese cypress are arranged in a double manner with a gap between them. Ejectors are provided that overlap each other and extend in a vertical direction, and the cross-sectional shape of the ejector forming the void is formed with a line-shaped curved section on the side of the injection nozzle, and a straight line on the opposite side in contact with the curved section. The straight part that spreads out is shaped like 11y-
+! A barrier pull ejector configured to cause a fuel jet from the injection nozzle to enter the cavity through a gap in the ejector.
JP57229740A 1982-12-27 1982-12-27 Variable ejector Pending JPS59120715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57229740A JPS59120715A (en) 1982-12-27 1982-12-27 Variable ejector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57229740A JPS59120715A (en) 1982-12-27 1982-12-27 Variable ejector

Publications (1)

Publication Number Publication Date
JPS59120715A true JPS59120715A (en) 1984-07-12

Family

ID=16896938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57229740A Pending JPS59120715A (en) 1982-12-27 1982-12-27 Variable ejector

Country Status (1)

Country Link
JP (1) JPS59120715A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141629U (en) * 1986-02-28 1987-09-07
WO1998038418A1 (en) * 1997-02-27 1998-09-03 Motorenfabrik Hatz Gmbh & Co. Kg Injection device and combustion process for an internal combustion engine
US9506439B2 (en) 2015-04-13 2016-11-29 Caterpillar Inc. Ducted combustion systems utilizing adjustable length ducts
US9587606B2 (en) 2015-04-13 2017-03-07 Caterpillar Inc. Ducted combustion systems utilizing tubular ducts
CN106795802A (en) * 2014-10-01 2017-05-31 桑迪亚公司 Catheter type fuel injection
US9803538B2 (en) 2015-04-13 2017-10-31 Caterpillar Inc. Ducted combustion systems utilizing duct structures
US10012196B1 (en) 2017-08-30 2018-07-03 Caterpillar Inc. Duct structure for fuel injector assembly
CN108463628A (en) * 2016-01-13 2018-08-28 桑迪亚国家技术与工程解决方案有限公司 Catheter type fuel injection
CN108700016A (en) * 2016-03-22 2018-10-23 桑迪亚国家技术与工程解决方案有限公司 Catheter type fuel injection with igniting auxiliary
US10151235B2 (en) 2017-03-07 2018-12-11 Caterpillar Inc. Ducted combustion system for an internal combustion engine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62141629U (en) * 1986-02-28 1987-09-07
WO1998038418A1 (en) * 1997-02-27 1998-09-03 Motorenfabrik Hatz Gmbh & Co. Kg Injection device and combustion process for an internal combustion engine
US6098588A (en) * 1997-02-27 2000-08-08 Motorenfabrik Hatz Gmbh & Co. Kg Injection device and combustion process for an internal combustion engine
CN106795802A (en) * 2014-10-01 2017-05-31 桑迪亚公司 Catheter type fuel injection
EP3201446A4 (en) * 2014-10-01 2018-04-11 National Technology & Engineering Solutions of Sandia, LLC Ducted fuel injection
US9803538B2 (en) 2015-04-13 2017-10-31 Caterpillar Inc. Ducted combustion systems utilizing duct structures
US9587606B2 (en) 2015-04-13 2017-03-07 Caterpillar Inc. Ducted combustion systems utilizing tubular ducts
US9506439B2 (en) 2015-04-13 2016-11-29 Caterpillar Inc. Ducted combustion systems utilizing adjustable length ducts
CN108463628A (en) * 2016-01-13 2018-08-28 桑迪亚国家技术与工程解决方案有限公司 Catheter type fuel injection
EP3402980A4 (en) * 2016-01-13 2019-06-19 National Technology & Engineering Solutions of Sandia, LLC Ducted fuel injection
CN108700016A (en) * 2016-03-22 2018-10-23 桑迪亚国家技术与工程解决方案有限公司 Catheter type fuel injection with igniting auxiliary
US10151235B2 (en) 2017-03-07 2018-12-11 Caterpillar Inc. Ducted combustion system for an internal combustion engine
US10012196B1 (en) 2017-08-30 2018-07-03 Caterpillar Inc. Duct structure for fuel injector assembly

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