JP3263487B2 - Combustion chamber of subchamber internal combustion engine - Google Patents
Combustion chamber of subchamber internal combustion engineInfo
- Publication number
- JP3263487B2 JP3263487B2 JP14980193A JP14980193A JP3263487B2 JP 3263487 B2 JP3263487 B2 JP 3263487B2 JP 14980193 A JP14980193 A JP 14980193A JP 14980193 A JP14980193 A JP 14980193A JP 3263487 B2 JP3263487 B2 JP 3263487B2
- Authority
- JP
- Japan
- Prior art keywords
- combustion chamber
- sub
- fuel
- auxiliary
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】副室式内燃機関の燃焼室に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion chamber of a sub-chamber internal combustion engine.
【０００２】[0002]
【従来の技術】図６は従来形の副室式機関の燃焼室の断
面図を示し、その副燃焼室２の上部には燃料噴射ノズル
５が設置されている。前記副燃焼室の形状は上部が半球
形のもの、円錐台のもの、円柱形のもの等があるが図６
は円柱形のものを示す。なお１はピストン、３は噴口、
４はシリンダヘッド、６はピストン、ｆ1 は燃料噴霧、
θは噴霧角である。2. Description of the Related Art FIG. 6 is a sectional view of a combustion chamber of a conventional sub-chamber type engine. A fuel injection nozzle 5 is provided above the sub-combustion chamber 2. As shown in FIG. As for the shape of the sub-combustion chamber, there are a hemispherical one at the top, a truncated cone, a cylindrical one, etc.
Indicates a cylindrical shape. In addition, 1 is a piston, 3 is a nozzle,
4 is a cylinder head, 6 is a piston, f 1 is a fuel spray,
θ is the spray angle.
【０００３】図７は従来の燃焼室に設置されているピン
形の燃料噴射ノズルの縦断面図である。ノズルニードル
５４の先端がノズルボディ５１の噴口５２にゆるく挿入
され、燃料はノズルニードル５４の先端と噴口５２との
間の輪状のすきまより噴射される。FIG. 7 is a longitudinal sectional view of a pin-shaped fuel injection nozzle installed in a conventional combustion chamber. The tip of the nozzle needle 54 is loosely inserted into the nozzle 52 of the nozzle body 51, and fuel is injected from a ring-shaped clearance between the tip of the nozzle needle 54 and the nozzle 52.
【０００４】[0004]
【発明が解決しようとする課題】ところが、従来の技術
では、燃料噴射角θを小さくすると燃料の副燃焼室壁へ
の付着防止と副燃焼室２から主燃焼室１への流出促進が
図られるが、副燃焼室２の上部空気が十分に利用できず
副燃焼室２内の燃焼は悪化する。However, in the prior art, when the fuel injection angle θ is reduced, the adhesion of the fuel to the sub-combustion chamber wall is prevented and the outflow from the sub-combustion chamber 2 to the main combustion chamber 1 is promoted. However, the upper air in the sub-combustion chamber 2 cannot be sufficiently used, and the combustion in the sub-combustion chamber 2 deteriorates.
【０００５】又副燃焼室２内での燃焼悪化のため、主燃
焼室１内での混合気形成及び燃焼促進に必要なエネルギ
が確保できず、燃焼が悪化し、燃費、吐煙が悪化する。
また燃料噴射角θを大きくした場合、副燃焼室２内での
空気利用率は高められるが、燃料の副燃焼室２壁面への
付着、副燃焼室２から主燃焼室１への流出が遅延し、吐
煙、燃費は悪化する。[0005] Further, because of the deterioration of combustion in the sub-combustion chamber 2, the energy required for forming the air-fuel mixture and promoting the combustion in the main combustion chamber 1 cannot be secured, and the combustion deteriorates, and the fuel consumption and smoke emission deteriorate. .
When the fuel injection angle θ is increased, the air utilization rate in the sub-combustion chamber 2 is increased, but the adhesion of fuel to the wall of the sub-combustion chamber 2 and the outflow from the sub-combustion chamber 2 to the main combustion chamber 1 are delayed. And smoke and fuel consumption deteriorate.
【０００６】本発明の目的は前記従来装置の問題点を解
消し、副燃焼室上部の空気利用率の上昇がはかるととも
に、副燃焼室壁面への燃料の付着防止と燃料の副燃焼室
から主燃焼室への流出促進が図られ、主燃焼室１内の燃
料と空気の混合気形成および燃焼が促進され、燃費、吐
煙が改善される副室式内燃機関の燃焼室を提供するにあ
る。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the conventional apparatus, to increase the air utilization rate in the upper part of the sub-combustion chamber, prevent the fuel from adhering to the wall of the sub-combustion chamber, and remove the fuel from the sub-combustion chamber. An object of the present invention is to provide a combustion chamber of a sub-chamber internal combustion engine in which the outflow to the combustion chamber is promoted, the formation of a mixture of fuel and air in the main combustion chamber 1 and the combustion are promoted, and the fuel consumption and smoke emission are improved. .
【０００７】[0007]
【課題を解決するための手段】本発明に係る副室式内燃
機関の燃焼室は、１個あるいは複数個の副室噴口を介し
て主燃焼室と連通し内部には燃料噴射ノズルが設置され
ている副燃焼室を備えた副室式内燃機関において、前記
副燃焼室（２）を内径に対して高さの大きい円柱状ある
いは円錐状に形成し、該副燃焼室内の上部に設けられた
燃料噴射ノズル（５）の主噴口（５２）のまわりに複数
の補助噴口（５３）を設け、前記主噴口からの燃料噴霧
が前記副燃焼室のほぼ中央部を前記副室噴口方向に噴射
されるとともに、該複数の補助噴口から噴出する燃料噴
霧のうちの１つが副燃焼室内上部に設けられたグロープ
ラグ（８）に接触するように構成されたことを特徴とし
ている。Means for Solving the Problems] combustion chamber subchamber type internal combustion engine according to the present invention, installed fuel injection nozzle into the main combustion chamber and communicating the unit via one or a plurality of sub-chamber injection port in subchamber type internal combustion engine having a secondary combustion chamber being, the
The auxiliary combustion chamber (2) has a cylindrical shape whose height is larger than the inner diameter.
Or a plurality of auxiliary injection ports (53) provided around a main injection port (52) of a fuel injection nozzle (5) provided at an upper portion in the sub-combustion chamber, and a fuel spray from the main injection port is provided.
Injects substantially the center of the sub-combustion chamber in the direction of the sub-chamber injection port.
In addition, one of the fuel sprays ejected from the plurality of auxiliary injection ports is configured to contact a glow plug (8) provided in an upper part of the sub-combustion chamber.
【０００８】[0008]
【作用】本発明の燃焼室では、副燃焼室２を内径に対し
て高さの大きい円柱状あるいは円錐状に形成し、該副燃
焼室内の上部に設けられた燃料噴射ノズル５の主噴口５
２のまわりに複数の補助噴口５３を設けているため、前
記複数個の補助噴口５３から噴出する燃料噴霧ｆ2によ
り副燃焼室２の上部空気利用率を高めることができ、副
燃焼室２内の燃焼が促進されるとともに、主噴口５２か
ら噴出される燃料噴霧ｆ1の噴霧角θを小さくとれるた
め、燃料の副燃焼室２壁面への付着、副燃焼室２から主
燃焼室１への流出促進が図られる。In the combustion chamber according to the present invention, the sub-combustion chamber 2 is moved with respect to the inner diameter.
Into a cylindrical or conical shape with a large height.
Main injection port 5 of fuel injection nozzle 5 provided in the upper part of the firing chamber
Because a plurality of auxiliary nozzles 53 are provided around 2,
The fuel spray f 2 ejected from the serial plurality of auxiliary nozzle hole 53 can increase the upper air utilization rate of the auxiliary combustion chamber 2, together with the combustion of the auxiliary combustion chamber 2 is accelerated, it is ejected from the main nozzle holes 52 since take small spray angle θ of the fuel spray f 1, attached to the secondary combustion chamber 2 the wall surface of the fuel, outflow promotion from the auxiliary combustion chamber 2 into the main combustion chamber 1 is achieved.
【０００９】さらに前記複数の補助噴口５３のうちの１
個から噴出する燃料ｆ21がグロープラグ８に接触するよ
う配置しているので、始動性が向上すると共に、副燃焼
室２の上部、即ち主噴口５２から噴出する燃料噴霧ｆ1
の背後で着火させ、該燃料噴霧ｆ1 の主燃焼室１への流
出が促進される。Furthermore, one of the plurality of auxiliary nozzles 53
The fuel f 21 to be ejected from the pieces are placed in contact in the glow plug 8, the fuel spray f 1 is ejected together with the startability is improved, the auxiliary combustion chamber 2 upper, i.e. the main injection port 52
And the fuel spray f 1 is promoted to flow out to the main combustion chamber 1.
【００１０】[0010]
【実施例】以下図１〜５を参照し本発明の一実施例につ
いて説明する。図１は本発明に係る副室式内燃機関の燃
焼室廻りの断面図、図２は本発明の副燃焼室に使用され
る燃料噴射ノズルの断面図、図３は図２のＡ部拡大図、
図４は図３に示すＡ部拡大図の下面図で補助噴口の形状
を円形とした第１実施例であり、図５は図４での円形噴
射口をだ円形とした第２実施例である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a cross-sectional view around a combustion chamber of a sub-chamber internal combustion engine according to the present invention, FIG. 2 is a cross-sectional view of a fuel injection nozzle used in the sub-combustion chamber of the present invention, and FIG. ,
FIG. 4 is a bottom view of an enlarged view of the part A shown in FIG. 3 and shows a first embodiment in which the shape of the auxiliary nozzle is circular, and FIG. 5 shows a second embodiment in which the circular nozzle in FIG. is there.
【００１１】副燃焼室２の形状はその上部が半球形のも
の、円錐台状のもの、円柱状のもの等があるが、本発明
においては図１の実施例に示す円柱状のものあるいは円
錐台状のものであって、図１に示す円柱状のもののよう
に、副燃焼室２の内径に対して高さの大きい予室型の副
燃焼室２を対象としている。本発明の副燃焼室２の上部
に配設された燃料噴射ノズル５にはノズルチップがキャ
ップを介して締着されている。該ノズルチップではノズ
ルニードル５４の先端がノズルボディ５１の噴口にゆる
く嵌入しており、燃料がノズルニードル５４の先端と前
記噴口との間の輪状のすきまより噴射されるピントル型
の主噴口５２を形成し、又図３に示すように該主噴口５
２を中心としてその外周にはノズルボディ５１のシート
面又はシート面下流側からノズルボディ５１の下端面へ
連通する複数個の補助噴口５３が設けられている。又該
補助噴口５３のうちの１つから噴出する燃料噴霧が副燃
焼室２の上部に設けられたグロープラグ８に接触するよ
うに配置されている。[0011] Of the shape of the auxiliary combustion chamber 2 has its upper hemispherical, as frustoconical, there is a cylindrical ones, but the present invention
In FIG. 1, a columnar member or a circle shown in the embodiment of FIG.
It is a frustum-shaped one, like the cylindrical one shown in FIG.
In addition, the auxiliary chamber of the pre-chamber type having a large height relative to the inner diameter of the auxiliary combustion chamber 2
The combustion chamber 2 is targeted. A nozzle tip is fastened via a cap to the fuel injection nozzle 5 disposed above the sub-combustion chamber 2 of the present invention. In the nozzle tip, the tip of the nozzle needle 54 is loosely fitted into the nozzle of the nozzle body 51, and the pintle-type main nozzle 52 in which fuel is injected from the annular gap between the tip of the nozzle needle 54 and the nozzle. The main injection port 5 is formed as shown in FIG.
A plurality of auxiliary nozzles 53 communicating from the sheet surface of the nozzle body 51 or the downstream side of the sheet surface to the lower end surface of the nozzle body 51 are provided on the outer periphery of the nozzle body 51. Further, the fuel spray ejected from one of the auxiliary nozzles 53 is a secondary fuel.
It is arranged so as to come in contact with a glow plug 8 provided in the upper part of the firing chamber 2 .
【００１２】次に前記実施例の作用について説明する。
複数個の補助噴口５３よりの噴出する燃料噴霧ｆ2 によ
り副燃焼室２、特に上部の空気利用率を高めることがで
き副燃焼室２内の燃焼が促進されると共に、主噴口５２
から噴出する燃料噴霧ｆ1 の噴霧角θを小さくできるの
で燃料の副燃焼室２の壁面への付着が防止され、副燃焼
室２から主燃焼室１への流出促進がはかられる。Next, the operation of the above embodiment will be described.
The fuel spray f 2 ejected from the plurality of auxiliary injection ports 53 can increase the air utilization rate of the sub-combustion chamber 2, particularly the upper part, to promote the combustion in the sub-combustion chamber 2 and to improve the main injection port 52.
Can be made smaller spray angle θ of the fuel spray f 1 ejected from adhering to the secondary combustion chamber 2 of the wall surface of the fuel is prevented, outflow promotion from the auxiliary combustion chamber 2 into the main combustion chamber 1 is worn.
【００１３】さらに前記複数の補助噴口５３のうちの１
つから噴出する燃料噴霧ｆ2 がグロープラグ８に接触す
るように配置したので、始動性が向上し、副燃焼室２の
上部で着火するので、主噴口５２から噴出する燃料噴霧
ｆ1 の背後で着火することになり、燃料噴霧ｆ1 の主燃
焼室１への流出が促進され、主燃焼室１内での燃料と空
気の混合気形成及び燃焼が促進され、燃費と吐煙が減少
する。Further, one of the plurality of auxiliary nozzles 53
Since the fuel spray f 2 for ejecting from One was placed in contact with the glow plug 8 improves the startability, so ignited in the auxiliary combustion chamber 2 upper, behind the fuel spray f 1 to be ejected from the main nozzle holes 52 in will be ignited, the outflow of the main combustion chamber 1 of the fuel spray f 1 is accelerated, it is promoted mixing of fuel and air gas formation and combustion in the main combustion chamber 1, the fuel consumption and吐煙decreases .
【００１４】[0014]
【発明の効果】本発明の副室式内燃機関の燃焼室は前記
とおり構成したので複数個の補助噴口５３から噴出する
燃料噴霧ｆ2 により副燃焼室２、特にその上部の空気利
用率が向上し、副燃焼室２内の燃焼が促進される。さら
に複数個の補助噴口５３のうちの１つから噴出する燃料
噴霧ｆ21をグロープラグ８に接触するように構成したの
で、始動が容易化するとともに、副燃焼室２の上部で着
火することにより主噴口５２から噴出する燃料噴霧ｆ1
の背後で着火することになる。The combustion chamber of the subchamber type internal combustion engine of the present invention according to the present invention was composed the following fuel spray f 2 by the auxiliary combustion chamber 2 is ejected from the plurality of auxiliary nozzle hole 53, in particular improved air utilization rate of the upper Thus, combustion in the sub-combustion chamber 2 is promoted. Since the fuel spray f 21 for jetting from one of the further plurality of auxiliary nozzle hole 53 is configured to contact the glow plug 8, with the starting is facilitated by ignition in the auxiliary combustion chamber 2 upper Fuel spray f 1 ejected from main injection port 52
Will ignite behind.
【００１５】さらに主噴口５２から噴出される燃料噴霧
ｆ1 の噴霧角θを小さくとれるため、燃料の副燃焼室２
壁面への付着防止と、燃料の副燃焼室２からの主燃焼室
１への流出促進が図られる。従って主燃焼室１内での燃
料と空気の混合気形成と燃焼が促進され燃費と吐煙が減
少する。Further, since the spray angle θ of the fuel spray f 1 ejected from the main injection port 52 can be made small, the fuel
Prevention of adhesion to the wall surface and promotion of fuel outflow from the sub-combustion chamber 2 to the main combustion chamber 1 are achieved. Therefore, the formation and combustion of a mixture of fuel and air in the main combustion chamber 1 are promoted, and fuel consumption and smoke emission are reduced.
【図１】本発明の第１実施例に係る燃焼室の縦断面図FIG. 1 is a longitudinal sectional view of a combustion chamber according to a first embodiment of the present invention.
【図２】本発明の燃焼室に設けられた燃料噴射ノズルの
縦断面図FIG. 2 is a longitudinal sectional view of a fuel injection nozzle provided in a combustion chamber of the present invention.
【図３】図２のＡ部拡大図FIG. 3 is an enlarged view of a portion A in FIG. 2;
【図４】本発明の第１実施例の下面図FIG. 4 is a bottom view of the first embodiment of the present invention.
【図５】同第２実施例の下面図FIG. 5 is a bottom view of the second embodiment.
【図６】従来例の図１応当図FIG. 6 is a diagram corresponding to FIG. 1 of a conventional example.
【図７】従来例の図２応当図FIG. 7 is a diagram corresponding to FIG. 2 of a conventional example.
１…主燃焼室、２…副燃焼室、５…燃料噴射ノズル、８
…グロープラグ、５１…ノズルボディ、５２…主噴口、
５３…補助噴口、５４…ノズルニードル、ｆ1，ｆ2 …
燃料噴霧、Ｂ−Ｂ…ノズルボディ下端面。DESCRIPTION OF SYMBOLS 1 ... Main combustion chamber, 2 ... Sub combustion chamber, 5 ... Fuel injection nozzle, 8
... glow plug, 51 ... nozzle body, 52 ... main nozzle,
53 ... auxiliary nozzle hole, 54 ... nozzle needle, f 1, f 2 ...
Fuel spray, BB: Lower end surface of nozzle body.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−44596（ＪＰ，Ａ) 特開 平３−202617（ＪＰ，Ａ) 特開 昭60−85216（ＪＰ，Ａ) 特開 昭58−47114（ＪＰ，Ａ) 特開 平６−108850（ＪＰ，Ａ) 特開 平６−307247（ＪＰ，Ａ) 特開 平４−148020（ＪＰ，Ａ) 実開 昭59−88220（ＪＰ，Ｕ) 実開 昭58−132130（ＪＰ，Ｕ) 実開 昭58−132131（ＪＰ，Ｕ) 実開 平６−47632（ＪＰ，Ｕ) 実開 昭59−17219（ＪＰ，Ｕ) 実開 平４−34431（ＪＰ，Ｕ) 実開 平４−82324（ＪＰ，Ｕ) 実開 昭59−17220（ＪＰ，Ｕ) 実開 平５−38327（ＪＰ，Ｕ) 実開 平４−105941（ＪＰ，Ｕ) 実開 平４−65924（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F02B 19/00 - 19/18 F02M 61/14 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-44596 (JP, A) JP-A-3-202617 (JP, A) JP-A-60-85216 (JP, A) JP-A-58-58 47114 (JP, A) JP-A-6-108850 (JP, A) JP-A-6-307247 (JP, A) JP-A-4-148020 (JP, A) Japanese Utility Model Application No. Sho 59-88220 (JP, U) Japanese Utility Model Showa 58-132130 (JP, U) Japanese Utility Model Showa 58-132131 (JP, U) Japanese Utility Model Hei 6-47632 (JP, U) Japanese Utility Model Showa 59-17219 (JP, U) Japanese Utility Model Utility Model 4-34431 (JP, U) Japanese Utility Model 4-82324 (JP, U) Japanese Utility Model Utility Model Sho 59-17220 (JP, U) Japanese Utility Model Utility Model 5-38327 (JP, U) Japanese Utility Model Utility Model 4-105941 (JP, U) Kaihei 4-65924 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F02B 19/00-19/18 F02M 61/14
Claims (1)
主燃焼室と連通し内部には燃料噴射ノズルが設置されて
いる副燃焼室を備えた副室式内燃機関において、前記副
燃焼室（２）を内径に対して高さの大きい円柱状あるい
は円錐状に形成し、該副燃焼室内の上部に設けられた燃
料噴射ノズル（５）の主噴口（５２）のまわりに複数の
補助噴口（５３）を設け、前記主噴口からの燃料噴霧が
前記副燃焼室のほぼ中央部を前記副室噴口方向に噴射さ
れるとともに、該複数の補助噴口から噴出する燃料噴霧
のうちの１つが副燃焼室内上部に設けられたグロープラ
グ（８）に接触するように構成されたことを特徴とする
副室式内燃機関の燃焼室。1. A single or a plurality of sub-chamber type internal combustion engine sub-chamber fuel injection nozzle into the main combustion chamber and communicating the section through the nozzle hole is provided with a secondary combustion chamber which is installed, the auxiliary
The combustion chamber (2) has a cylindrical shape with a height higher than the inner diameter.
Is formed in a conical shape, and a plurality of auxiliary injection ports (53) are provided around a main injection port (52) of a fuel injection nozzle (5) provided at an upper portion in the sub-combustion chamber, and fuel spray from the main injection port is provided.
Almost the center of the sub-combustion chamber is injected in the direction of the sub-chamber injection port.
With the, subchamber type internal combustion engine, characterized in that it is configured as one of the fuel spray injected from the auxiliary nozzle hole of said plurality of contacts in the glow plug provided in the auxiliary combustion chamber top (8) Combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14980193A JP3263487B2 (en) | 1993-05-31 | 1993-05-31 | Combustion chamber of subchamber internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14980193A JP3263487B2 (en) | 1993-05-31 | 1993-05-31 | Combustion chamber of subchamber internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06336931A JPH06336931A (en) | 1994-12-06 |
| JP3263487B2 true JP3263487B2 (en) | 2002-03-04 |
Family
ID=15483016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14980193A Expired - Fee Related JP3263487B2 (en) | 1993-05-31 | 1993-05-31 | Combustion chamber of subchamber internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3263487B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295257A (en) * | 2001-03-20 | 2002-10-09 | Illinois Tool Works Inc <Itw> | Combustion chamber system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227344A (en) * | 2000-02-14 | 2001-08-24 | Mitsubishi Heavy Ind Ltd | Nozzle hole structure of torch ignition-type gas engine |
| DK179146B1 (en) * | 2016-12-13 | 2017-12-04 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Nozzle for fuel valve for injecting fuel into the cylinders of a large turbocharged two-stroke compression-ignited internal combustion engineand and an engine therefore |
| DK179281B1 (en) * | 2016-12-13 | 2018-04-03 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Nozzle for fuel valve for injecting fuel into the cylinders of a large turbocharged two-stroke compression-ignited internal combustion engine |
-
1993
- 1993-05-31 JP JP14980193A patent/JP3263487B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295257A (en) * | 2001-03-20 | 2002-10-09 | Illinois Tool Works Inc <Itw> | Combustion chamber system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06336931A (en) | 1994-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2590170B2 (en) | Flame culture breeder for fuel combustion systems | |
| CN100513754C (en) | Cylinder injection type spark ignition internal combustion engine | |
| US6883491B2 (en) | Fuel injection system | |
| EP0142708B1 (en) | Diesel engine | |
| CN209855900U (en) | Installation structure of spark plug of pre-combustion chamber | |
| JP2003534485A (en) | Fuel injection system | |
| JP3263487B2 (en) | Combustion chamber of subchamber internal combustion engine | |
| JP3633392B2 (en) | In-cylinder injection spark ignition internal combustion engine | |
| JP2653556B2 (en) | Combustion chamber of direct injection diesel engine | |
| JP2564854B2 (en) | Spark assist diesel engine | |
| JPH03117672A (en) | Fuel injection device | |
| JP2629745B2 (en) | Spark assist diesel engine | |
| US7273031B1 (en) | Fuel mixture diffuser tab for a direct-injection internal combustion engine | |
| JPH0755295Y2 (en) | Combustion chamber of internal combustion engine | |
| JPH0768903B2 (en) | Combustion chamber of direct injection diesel engine | |
| JP2003269176A (en) | Cylinder direct injection engine | |
| JPH05106441A (en) | Combustion chamber of direct injection type diesel engine | |
| CN216811944U (en) | Piston and engine | |
| JP4096637B2 (en) | In-cylinder direct injection internal combustion engine | |
| JPH1077844A (en) | Combustion chamber for auxiliary chamber type internal combustion engine | |
| JPH08144884A (en) | Direct injection type gasoline internal combustion engine | |
| JPS5847250Y2 (en) | Diesel engine fuel injection valve device | |
| JP2521900B2 (en) | Spark ignition internal combustion engine | |
| JPH0754621Y2 (en) | Glow plug cover | |
| JP2508675B2 (en) | Combustion chamber of direct injection diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20011120 |
|
| LAPS | Cancellation because of no payment of annual fees |