JPH0711960A - Internal combustion engine - Google Patents
Internal combustion engineInfo
- Publication number
- JPH0711960A JPH0711960A JP5011678A JP1167893A JPH0711960A JP H0711960 A JPH0711960 A JP H0711960A JP 5011678 A JP5011678 A JP 5011678A JP 1167893 A JP1167893 A JP 1167893A JP H0711960 A JPH0711960 A JP H0711960A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- intake
- cylinder head
- mixture
- 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
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
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は内燃機関に関する。FIELD OF THE INVENTION This invention relates to internal combustion engines.
【０００２】[0002]
【従来の技術】シリンダヘッド内壁面の一側に一対の吸
気弁を配置すると共にシリンダヘッド内壁面の他側に排
気弁を配置し、各吸気弁から燃焼室内に流入した空気が
排気弁下方に位置するシリンダボア内壁面に沿い下降
し、次いでピストン頂面に沿いつつ進行した後に吸気弁
下方に位置するシリンダボア内壁面に沿い上昇する旋回
空気流を形成するようにした内燃機関が公知である（実
公平４−１５９３８号参照）。この内燃機関では、各吸
気通路内に燃料を噴射するためにこの噴射燃料が吸入空
気と共に燃焼室内に流入して旋回空気流と共に燃焼室内
を旋回するようになっている。その結果、燃焼室全体が
ほぼ一様な濃度の混合気により満たされる。2. Description of the Related Art A pair of intake valves is arranged on one side of an inner wall surface of a cylinder head, and an exhaust valve is arranged on the other side of the inner wall surface of the cylinder head so that air flowing from each intake valve into a combustion chamber is located below the exhaust valve. There is known an internal combustion engine that forms a swirling air flow that descends along the inner wall surface of the cylinder bore located next, and then advances along the top surface of the piston and then rises along the inner wall surface of the cylinder bore located below the intake valve (actually, (See Hei 4-15938). In this internal combustion engine, in order to inject the fuel into each intake passage, the injected fuel flows into the combustion chamber together with the intake air and swirls in the combustion chamber together with the swirling air flow. As a result, the entire combustion chamber is filled with an air-fuel mixture having a substantially uniform concentration.
【０００３】[0003]
【発明が解決しようとする課題】ところで燃費を向上す
べく燃料供給量を減少することにより空燃比をリーン
（空気過剰）側に設定して、いわゆる希薄燃焼を行う内
燃機関が知られている。しかしながら、上述の内燃機関
におけるように燃焼室内に旋回空気流を形成して燃焼室
内全体を混合気により満たすようにした場合に希薄燃焼
を行うべく燃料供給量を減少すると燃焼室全体が非常に
希薄な混合気によって満たされ、点火栓近傍においても
非常に希薄な混合気が形成されるためにこの混合気を点
火栓により確実に着火燃焼せしめることができず、その
結果希薄燃焼を行うことができないという問題がある。
そこで本発明の目的は上述の内燃機関において燃料供給
量を減少せしめた場合にも燃焼室内に流入した燃料の一
部によって点火栓近傍に確実に着火可能な濃度の混合気
を形成し、その結果希薄燃焼が行えるようにすることで
ある。By the way, there is known an internal combustion engine in which the air-fuel ratio is set to a lean side (excess air) by reducing the fuel supply amount in order to improve fuel efficiency, and so-called lean combustion is performed. However, when the swirling airflow is formed in the combustion chamber to fill the entire combustion chamber with the air-fuel mixture as in the above-described internal combustion engine, if the fuel supply amount is reduced to perform lean combustion, the entire combustion chamber becomes extremely lean. The mixture cannot be ignited and burned reliably by the spark plug because the mixture is filled with a strong mixture and a very lean mixture is formed in the vicinity of the spark plug, and as a result, lean combustion cannot be performed. There is a problem.
Therefore, an object of the present invention is to form an air-fuel mixture having a concentration capable of reliably igniting in the vicinity of the spark plug by a part of the fuel flowing into the combustion chamber even when the fuel supply amount is reduced in the above-mentioned internal combustion engine. This is to enable lean burn.
【０００４】[0004]
【課題を解決するための手段】上記問題点を解決するた
めに本発明によれば、シリンダヘッド内壁面の一側に一
対の吸気弁を配置すると共にシリンダヘッド内壁面の他
側に排気弁を配置し、各吸気弁から燃焼室内に流入した
空気が排気弁下方に位置するシリンダボア内壁面に沿い
下降し、次いでピストン頂面に沿いつつ進行した後に吸
気弁下方に位置するシリンダボア内壁面に沿い上昇する
旋回空気流を形成するようにした内燃機関において、燃
料噴射弁から一方の吸気通路の中心軸線と他方の吸気通
路の中心軸線間に形成される吸気通路領域内に燃料を噴
射し、シリンダヘッドの中央部に点火栓を配置すると共
に凹溝を形成し、噴射燃料により上記吸気通路領域内に
形成された混合気を凹溝内に導いて凹溝内に導かれた混
合気を点火栓により着火するようにしている。In order to solve the above problems, according to the present invention, a pair of intake valves are arranged on one side of the inner wall surface of the cylinder head and an exhaust valve is arranged on the other side of the inner wall surface of the cylinder head. Air that flows into the combustion chamber from each intake valve descends along the inner wall surface of the cylinder bore located below the exhaust valve, then advances along the top surface of the piston and then rises along the inner wall surface of the cylinder bore located below the intake valve. In an internal combustion engine configured to form a swirling air flow, the fuel is injected from a fuel injection valve into an intake passage region formed between the central axis of one intake passage and the central axis of the other intake passage, and a cylinder head A spark plug is arranged in the central part of the fuel cell and a groove is formed, and the air-fuel mixture formed in the intake passage region by the injected fuel is guided into the groove and the air-fuel mixture introduced into the groove is used as a spark plug. Yo So that the ignition.
【０００５】[0005]
【作用】吸気通路領域内に噴射された燃料の一部が凹溝
内に流入する空気流によって凹溝内に導かれる。このた
め点火栓近傍に確実に着火可能な濃度の混合気を存在せ
しめることができる。A part of the fuel injected into the intake passage region is guided into the groove by the air flow flowing into the groove. Therefore, it is possible to allow the air-fuel mixture having a concentration capable of reliably igniting to exist near the spark plug.
【０００６】[0006]
【実施例】図１から図３までを参照すると、１はシリン
ダブロック、２はシリンダブロック１内で往復動するピ
ストン、３はシリンダブロック１上に固締されたシリン
ダヘッド、４はピストン２とシリンダヘッド内壁面３ａ
間に形成された燃焼室、５ａは第１吸気弁、５ｂは第１
吸気弁５ａと同時に開閉動作を行う第２吸気弁、６は第
１吸気ポート、７は第２吸気ポート、８は吸気マニホル
ド、９は同時に開閉動作を行う一対の排気弁、１０は一
対の排気ポートをそれぞれ示す。ピストン２の頂面上に
は、図４に示すように吸気ポート６，７の長手方向と同
一の方向に延びる凹部２ａが形成されている。1 to 3, 1 is a cylinder block, 2 is a reciprocating piston in the cylinder block 1, 3 is a cylinder head fixed on the cylinder block 1, and 4 is a piston 2. Cylinder head inner wall surface 3a
The combustion chamber 5a formed between them is the first intake valve, and 5b is the first intake valve.
A second intake valve which opens and closes simultaneously with the intake valve 5a, 6 a first intake port, 7 a second intake port, 8 an intake manifold, 9 a pair of exhaust valves which simultaneously open and close, 10 a pair of exhaust valves Shows each port. As shown in FIG. 4, a recess 2a extending in the same direction as the longitudinal direction of the intake ports 6 and 7 is formed on the top surface of the piston 2.
【０００７】吸気ポート６，７上流のシリンダヘッド３
内には燃料噴射弁１１が配置される。この燃料噴射弁１
１には２個のノズル口が設けられており、各吸気ポート
６，７内に向けてそれぞれ燃料噴射することができる。
また図１および図３に示されるように、シリンダヘッド
内壁面３ａの中央部には点火栓１２が配置されると共に
凹溝１３が形成される。このため凹溝１３内に混合気が
導かれたときにはこの混合気を点火栓１２により確実に
着火することができる。Cylinder head 3 upstream of the intake ports 6 and 7
A fuel injection valve 11 is arranged inside. This fuel injection valve 1
The nozzle 1 is provided with two nozzle openings so that fuel can be injected into the intake ports 6 and 7, respectively.
Further, as shown in FIGS. 1 and 3, the spark plug 12 is arranged in the center of the inner wall surface 3a of the cylinder head, and the concave groove 13 is formed. Therefore, when the air-fuel mixture is introduced into the concave groove 13, the air-fuel mixture can be reliably ignited by the spark plug 12.
【０００８】図１および図５を参照すると、第１吸気ポ
ート６内には第１吸気ポート６の中心軸線にほぼ沿って
延びる段部６ｃが形成され、その結果第１吸気ポート６
内には内側ポート６ａと外側ポート６ｂとが形成され
る。同様に、第２吸気ポート７内には第２吸気ポート７
の中心軸線にほぼ沿って延びる段部７ｃが形成され、そ
の結果第２吸気ポート７内には内側ポート７ａと外側ポ
ート７ｂとが形成される。したがって、一対の内側ポー
ト６ａ，７ａによって吸気通路領域が形成されることと
なる。Referring to FIGS. 1 and 5, a step portion 6c extending substantially along the central axis of the first intake port 6 is formed in the first intake port 6, and as a result, the first intake port 6 is formed.
An inner port 6a and an outer port 6b are formed inside. Similarly, in the second intake port 7, the second intake port 7
A step portion 7c extending substantially along the central axis of is formed, and as a result, an inner port 7a and an outer port 7b are formed in the second intake port 7. Therefore, the intake passage region is formed by the pair of inner ports 6a and 7a.
【０００９】各内側ポート６ａ，７ａを通り燃焼室４内
に流入した空気は、先ず排気弁９下方に位置するシリン
ダボア内壁面１ａに沿い下降する。次いで、ピストン２
頂面に形成された凹部２ａに沿い進行した後に吸気弁５
ａ，５ｂ下方に位置するシリンダボア内壁面１ａに沿い
上昇し、その結果図６において実線で示すような一対の
旋回空気流Ｓを形成する。各吸気ポート６，７内に流入
した空気の大部分は内側ポート６ａ，７ａ内に流入する
ために燃焼室４内に流入した空気の大部分によって燃焼
室４内に旋回空気流Ｓが形成される。The air flowing into the combustion chamber 4 through the inner ports 6a and 7a first descends along the inner wall surface 1a of the cylinder bore located below the exhaust valve 9. Then piston 2
After advancing along the recess 2a formed on the top surface, the intake valve 5
Ascending along the inner wall surface 1a of the cylinder bore located below a and 5b, as a result, a pair of swirling airflows S as shown by the solid line in FIG. 6 is formed. Most of the air flowing into the intake ports 6 and 7 flows into the inner ports 6a and 7a, so that the swirling air flow S is formed in the combustion chamber 4 by most of the air flowing into the combustion chamber 4. It
【００１０】これに対し、各外側ポート６ｂ，７ｂを通
り燃焼室４内に流入した空気は各吸気弁５ａ，５ｂのか
さ部に沿い燃焼室４内に流入し、図６において破線で示
すように各吸気弁５ａ，５ｂと対向する排気弁９間に位
置する燃焼室４周縁部を下降する。その結果、各外側ポ
ート６ｂ，７ｂを通り燃焼室４内に流入した空気は上述
した旋回空気流Ｓを包むように流れるために旋回空気流
Ｓが図６において矢印で示される方向Ｘに拡散するのが
阻止される。On the other hand, the air that has flowed into the combustion chamber 4 through the outer ports 6b and 7b flows into the combustion chamber 4 along the bulkheads of the intake valves 5a and 5b, as shown by the broken line in FIG. First, the periphery of the combustion chamber 4 located between the exhaust valves 9 facing the intake valves 5a and 5b is lowered. As a result, the air flowing into the combustion chamber 4 through each of the outer ports 6b and 7b flows so as to surround the swirling air flow S described above, so that the swirling air flow S diffuses in the direction X indicated by the arrow in FIG. Is blocked.
【００１１】次に図７から図１１を参照して混合気の燃
焼方法について説明する。なお、図８および図１０は図
２と同一平面における断面を示しており、図９および図
１１は図３と同一平面における断面を示している。Next, a method of burning the air-fuel mixture will be described with reference to FIGS. 7 to 11. 8 and 10 show cross sections in the same plane as FIG. 2, and FIGS. 9 and 11 show cross sections in the same plane as FIG.
【００１２】吸気弁５ａ，５ｂが開弁され吸気行程が開
始されると燃料噴射が開始される。このとき燃料Ｆは、
図７に示されるように各内側ポート６ａ，７ａ内にそれ
ぞれ噴射される。このため、燃料Ｆは各内側ポート６
ａ，７ａ内を流れる空気と共に混合気を形成しつつ燃焼
室４内に流入する。この内側ポート６ａ，７ａを通って
燃焼室４内に流入した混合気の大部分は図８および図９
において矢印Ｓで示すように排気弁９下方に位置するシ
リンダボア内壁面１ａに向けて進行し、また内側ポート
６ａ，７ａを通った混合気の一部は図９において矢印Ｒ
で示すようにシリンダヘッド内壁面３ａ中央部に形成さ
れた凹溝１３内に流入する。When the intake valves 5a and 5b are opened and the intake stroke is started, fuel injection is started. At this time, the fuel F is
As shown in FIG. 7, the fuel is injected into each inner port 6a, 7a. For this reason, the fuel F is supplied to each inner port 6
The gas flows into the combustion chamber 4 while forming an air-fuel mixture with the air flowing in the a and 7a. Most of the air-fuel mixture that has flowed into the combustion chamber 4 through the inner ports 6a and 7a is shown in FIGS.
In FIG. 9, a part of the air-fuel mixture which has proceeded toward the inner wall surface 1a of the cylinder bore located below the exhaust valve 9 and has passed through the inner ports 6a and 7a is indicated by an arrow R in FIG.
As shown in (4), it flows into the concave groove 13 formed in the central portion of the cylinder head inner wall surface 3a.
【００１３】次いで、排気弁９下方に位置するシリンダ
ボア内壁面１ａに向かった混合気Ｓは、図８および図９
に示されるようにこのシリンダボア内壁面１ａに沿い下
降した後にピストン２頂面の凹部２ａに沿って進行す
る。これに対し、凹溝１３内に流入した混合気は凹溝１
３内に滞留し続ける。また、このとき外側ポート６ｂ，
７ｂを通った空気は対応する吸気弁５ａ，５ｂのかさ部
に沿いつつ燃焼室４内に流入して旋回流Ｓを包むように
流れ、その結果各内側ポート６ａ，７ａを通って燃焼室
４内に流入した混合気Ｓが図６において矢印で示される
方向Ｘに拡散するのが阻止される。Next, the air-fuel mixture S directed to the inner wall surface 1a of the cylinder bore located below the exhaust valve 9 is as shown in FIGS.
As shown in FIG. 5, after descending along the inner wall surface 1a of the cylinder bore, it advances along the concave portion 2a on the top surface of the piston 2. On the other hand, the air-fuel mixture flowing into the groove 13 is
Continue to stay within 3. At this time, the outer port 6b,
The air that has passed through 7b flows into the combustion chamber 4 along the bulge portions of the corresponding intake valves 5a and 5b, and flows so as to wrap the swirl flow S, and as a result, passes through the inner ports 6a and 7a and inside the combustion chamber 4. The mixture S that has flowed in is prevented from diffusing in the direction X indicated by the arrow in FIG.
【００１４】吸気弁５ａ，５ｂが閉弁され吸気行程が終
了されるとピストン２が上昇を開始する。このときピス
トン２頂面の凹部２ａに沿って進行していた混合気Ｓは
吸気弁５ａ，５ｂ下方に位置するシリンダボア内壁面１
ａに沿い上昇しており、その結果、燃焼室４内には図１
０および図１１に示されるような旋回流Ｓが形成され
る。この旋回流Ｓは空気流の乱れを生じさせており、そ
の結果旋回流Ｓはほぼ均一な濃度の混合気により形成さ
れている。したがって燃焼室４全体は均一な濃度の混合
気によって満たされるようになる。When the intake valves 5a and 5b are closed and the intake stroke is completed, the piston 2 starts to rise. At this time, the air-fuel mixture S advancing along the recessed portion 2a on the top surface of the piston 2 has the cylinder bore inner wall surface 1 located below the intake valves 5a and 5b.
As a result, as shown in FIG.
0 and a swirling flow S as shown in FIG. 11 are formed. The swirl flow S causes turbulence of the air flow, and as a result, the swirl flow S is formed by the air-fuel mixture having a substantially uniform concentration. Therefore, the entire combustion chamber 4 is filled with the air-fuel mixture having a uniform concentration.
【００１５】一方凹溝１３内には、図１１に示されるよ
うに吸気行程時に流入した混合気Ｇが依然として滞留し
ている。この凹溝１３内に滞留している混合気Ｇは、燃
料が各内側ポート６ａ，７ａ内に噴射されるために燃焼
室４内に形成される混合気よりも濃度が高くなってい
る。On the other hand, in the groove 13, as shown in FIG. 11, the air-fuel mixture G that has flowed in during the intake stroke is still retained. The air-fuel mixture G staying in the groove 13 has a higher concentration than the air-fuel mixture formed in the combustion chamber 4 because the fuel is injected into the inner ports 6a, 7a.
【００１６】次いでピストン２がさらに上昇して燃焼室
４内の混合気が圧縮されると凹溝１３内の混合気Ｇが点
火栓１２により着火燃焼せしめられる。このとき、凹溝
１３内の混合気Ｇの濃度は点火栓１２により着火される
のに十分な濃度であるために燃費を向上すべく燃料噴射
弁１１から噴射される燃料を減少せしめても凹溝１３内
の混合気Ｇを良好に着火燃焼せしめることができる。そ
の結果希薄燃焼を行うことができるようになる。Next, when the piston 2 further rises and the air-fuel mixture in the combustion chamber 4 is compressed, the air-fuel mixture G in the groove 13 is ignited and burned by the spark plug 12. At this time, since the concentration of the air-fuel mixture G in the concave groove 13 is sufficient to be ignited by the spark plug 12, even if the fuel injected from the fuel injection valve 11 is reduced in order to improve the fuel consumption, The air-fuel mixture G in the groove 13 can be satisfactorily ignited and burned. As a result, lean combustion can be performed.
【００１７】凹溝１３内における着火火炎は次いで燃焼
室４内の混合気に伝播するが、燃焼室４内には旋回流Ｓ
により均一な混合気が形成されているためにこの混合気
を良好に燃焼せしめることができる。The ignition flame in the groove 13 then propagates to the air-fuel mixture in the combustion chamber 4, but in the combustion chamber 4, the swirling flow S
As a result, a uniform air-fuel mixture is formed, so that this air-fuel mixture can be burned well.
【００１８】[0018]
【発明の効果】燃料噴射量が少ないときであってもシリ
ンダヘッド中央部に形成された凹溝内には点火栓により
着火可能な濃度の混合気が導かれるために凹溝内の混合
気を点火栓により確実に着火燃焼せしめることができ
る。EFFECTS OF THE INVENTION Even when the amount of fuel injection is small, the air-fuel mixture in the groove is formed because the air-fuel mixture having a concentration capable of being ignited by the spark plug is introduced into the groove formed in the central portion of the cylinder head. It is possible to reliably ignite and burn with the spark plug.
【図１】シリンダヘッドの平面断面図である。FIG. 1 is a plan sectional view of a cylinder head.
【図２】図１の線ＩＩ−ＩＩに沿ってみた内燃機関の側
面断面図である。2 is a side cross-sectional view of the internal combustion engine taken along the line II-II in FIG.
【図３】図１の線ＩＩＩ−ＩＩＩに沿ってみた内燃機関
の側面断面図である。3 is a side cross-sectional view of the internal combustion engine taken along the line III-III in FIG.
【図４】ピストンの頂面図である。FIG. 4 is a top view of the piston.
【図５】図１の線ＩＶ−ＩＶに沿ってみた吸気通路の側
面断面図である。5 is a side cross-sectional view of the intake passage taken along line IV-IV in FIG.
【図６】燃焼室内における空気および燃料の流れを示す
線図である。FIG. 6 is a diagram showing the flow of air and fuel in the combustion chamber.
【図７】燃料噴射方向を示すシリンダヘッドの平面断面
図である。FIG. 7 is a plan sectional view of a cylinder head showing a fuel injection direction.
【図８】図２と同一平面に沿ってみた内燃機関の側面断
面図である。FIG. 8 is a side sectional view of the internal combustion engine taken along the same plane as FIG.
【図９】図３と同一平面に沿ってみた内燃機関の側面断
面図である。9 is a side cross-sectional view of the internal combustion engine taken along the same plane as FIG.
【図１０】図２と同一平面に沿ってみた内燃機関の側面
断面図である。10 is a side sectional view of the internal combustion engine taken along the same plane as FIG.
【図１１】図３と同一平面に沿ってみた内燃機関の側面
断面図である。11 is a side sectional view of the internal combustion engine taken along the same plane as FIG.
【符号の説明】 ４…燃焼室 ５ａ，５ｂ…吸気弁 ６，７…吸気ポート ６ａ，７ａ…吸気通路領域 ９…排気弁 １１…燃料噴射弁 １２…点火栓 １３…凹溝[Description of Reference Signs] 4 ... Combustion chambers 5a, 5b ... Intake valves 6, 7 ... Intake ports 6a, 7a ... Intake passage region 9 ... Exhaust valve 11 ... Fuel injection valve 12 ... Spark plug 13 ... Recessed groove
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０２Ｍ 69/00 ３６０ Ｂ 9429−3Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location F02M 69/00 360 B 9429-3G
Claims (1)
気弁を配置すると共にシリンダヘッド内壁面の他側に排
気弁を配置し、各吸気弁から燃焼室内に流入した空気が
排気弁下方に位置するシリンダボア内壁面に沿い下降
し、次いでピストン頂面に沿いつつ進行した後に吸気弁
下方に位置するシリンダボア内壁面に沿い上昇する旋回
空気流を形成するようにした内燃機関において、燃料噴
射弁から一方の吸気通路の中心軸線と他方の吸気通路の
中心軸線間に形成される吸気通路領域内に燃料を噴射
し、シリンダヘッドの中央部に点火栓を配置すると共に
凹溝を形成し、噴射燃料により上記吸気通路領域内に形
成された混合気を凹溝内に導いて凹溝内に導かれた混合
気を点火栓により着火するようにした内燃機関。1. A pair of intake valves are arranged on one side of the inner wall surface of the cylinder head, and an exhaust valve is arranged on the other side of the inner wall surface of the cylinder head, and air flowing from each intake valve into the combustion chamber is located below the exhaust valve. In an internal combustion engine that is designed to form a swirling air flow that descends along the inner wall surface of the cylinder bore, then advances along the top surface of the piston and then rises along the inner wall surface of the cylinder bore located below the intake valve, Fuel is injected into an intake passage region formed between the central axis of one intake passage and the central axis of the other intake passage, and a spark plug is arranged in the center of the cylinder head and a groove is formed to inject fuel. An internal combustion engine in which the air-fuel mixture formed in the intake passage region is guided into the groove and the mixture introduced into the groove is ignited by an ignition plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5011678A JPH0711960A (en) | 1993-01-27 | 1993-01-27 | Internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5011678A JPH0711960A (en) | 1993-01-27 | 1993-01-27 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0711960A true JPH0711960A (en) | 1995-01-13 |
Family
ID=11784661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5011678A Pending JPH0711960A (en) | 1993-01-27 | 1993-01-27 | Internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0711960A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019197860A1 (en) * | 2018-04-10 | 2019-10-17 | 日産自動車株式会社 | Combustion chamber structure of internal combustion engine |
-
1993
- 1993-01-27 JP JP5011678A patent/JPH0711960A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019197860A1 (en) * | 2018-04-10 | 2019-10-17 | 日産自動車株式会社 | Combustion chamber structure of internal combustion engine |
| JPWO2019197860A1 (en) * | 2018-04-10 | 2021-03-11 | 日産自動車株式会社 | Combustion chamber structure of internal combustion engine |
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